Commit Graph

43527 Commits

Author SHA1 Message Date
Sameer Rahmani
ff1e81a7e2 Documentation: build warnings related to missing blank lines after explicit markups has been fixed
Fix for several documentation build warnings related to missing blank lines
after explicit mark up.

Exact warning message:
 WARNING: Explicit markup ends without a blank line; unexpected unindent.

Signed-off-by: Sameer Rahmani <lxsameer@gnu.org>
Link: https://lore.kernel.org/r/20200203201543.24834-1-lxsameer@gnu.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-02-05 10:30:03 -07:00
SeongJae Park
95c472ffca Documentation/ko_KR/howto: Update a broken link
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Link: https://lore.kernel.org/r/20200131205237.29535-5-sj38.park@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-02-05 10:21:23 -07:00
SeongJae Park
5549c20232 Documentation/ko_KR/howto: Update broken web addresses
Commit 0ea6e61122 ("Documentation: update broken web addresses.")
removed a link to 'http://patchwork.ozlabs.org' in howto, but the change
has not applied to the Korean translation.  This commit simply applies
the change to the Korean translation.  The link is restored now, though.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Link: https://lore.kernel.org/r/20200131205237.29535-4-sj38.park@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-02-05 10:21:19 -07:00
SeongJae Park
4bfdebd620 docs/locking: Fix outdated section names
Commit 2e4f5382d1 ("locking/doc: Rename LOCK/UNLOCK to
ACQUIRE/RELEASE") has not appied to 'spinlock.rst'.  This commit updates
the doc for the change.

Signed-off-by: SeongJae Park <sjpark@amazon.com>
Link: https://lore.kernel.org/r/20200131205237.29535-2-sj38.park@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-02-05 10:21:12 -07:00
Paolo Bonzini
ef09f4f463 KVM: s390: Fixes and cleanups for 5.6
- fix register corruption
 - ENOTSUPP/EOPNOTSUPP mixed
 - reset cleanups/fixes
 - selftests
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Merge tag 'kvm-s390-next-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

KVM: s390: Fixes and cleanups for 5.6
- fix register corruption
- ENOTSUPP/EOPNOTSUPP mixed
- reset cleanups/fixes
- selftests
2020-02-05 16:15:05 +01:00
Steven Rostedt (VMware)
7495e0926f bootconfig: Only load bootconfig if "bootconfig" is on the kernel cmdline
As the bootconfig is appended to the initrd it is not as easy to modify as
the kernel command line. If there's some issue with the kernel, and the
developer wants to boot a pristine kernel, it should not be needed to modify
the initrd to remove the bootconfig for a single boot.

As bootconfig is silently added (if the admin does not know where to look
they may not know it's being loaded). It should be explicitly added to the
kernel cmdline. The loading of the bootconfig is only done if "bootconfig"
is on the kernel command line. This will let admins know that the kernel
command line is extended.

Note, after adding printk()s for when the size is too great or the checksum
is wrong, exposed that the current method always looked for the boot config,
and if this size and checksum matched, it would parse it (as if either is
wrong a printk has been added to show this). It's better to only check this
if the boot config is asked to be looked for.

Link: https://lore.kernel.org/r/CAHk-=wjfjO+h6bQzrTf=YCZA53Y3EDyAs3Z4gEsT7icA3u_Psw@mail.gmail.com

Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-02-05 04:22:43 -05:00
Rob Herring
04dbd86539 dt-bindings: Fix paths in schema $id fields
The $id path checks were inadequately checking the path part of the $id
value. With the check fixed, there's a number of errors that need to be
fixed. Most of the errors are including 'bindings/' in the path which
should not be as that is considered the root.

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: "Nuno Sá" <nuno.sa@analog.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Stefan Popa <stefan.popa@analog.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: Marcus Folkesson <marcus.folkesson@gmail.com>
Cc: Kent Gustavsson <kent@minoris.se>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-iio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-05 09:14:57 +00:00
Rafael J. Wysocki
f06572ef47 cpuidle: Documentation: Clean up PM QoS description
Clean up the language in one paragraph in the PM QoS description in
Documentation/admin-guide/pm/cpuidle.rst.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-02-05 02:08:31 +01:00
Dilip Kota
34129bb831 dt-bindings: PCI: intel: Fix dt_binding_check compilation failure
Remove <dt-bindings/clock/intel,lgm-clk.h> dependency as
it is not present in the mainline tree. Use numeric value
instead of LGM_GCLK_PCIE10 macro.

Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
[robh: Also drop interrupt-parent from example]
Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-04 22:42:20 +00:00
Rob Herring
4ae87b17cc dt-bindings: phy: Fix errors in intel,lgm-emmc-phy example
DT labels can't have '-' in them causing a compile failure in the example.
Fixing that leads to more warnings:

Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dts:23.13-33: Warning (reg_format): /example-0/chiptop@e0200000/emmc-phy@a8:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1)
Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dts:21.33-26.13: Warning (avoid_default_addr_size): /example-0/chiptop@e0200000/emmc-phy@a8: Relying on default #address-cells value
Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dts:21.33-26.13: Warning (avoid_default_addr_size): /example-0/chiptop@e0200000/emmc-phy@a8: Relying on default #size-cells value

Fixes: 5bc9991080 ("dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY")
Cc: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
Cc: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-04 22:42:20 +00:00
Linus Torvalds
33b40134e5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Use after free in rxrpc_put_local(), from David Howells.

 2) Fix 64-bit division error in mlxsw, from Nathan Chancellor.

 3) Make sure we clear various bits of TCP state in response to
    tcp_disconnect(). From Eric Dumazet.

 4) Fix netlink attribute policy in cls_rsvp, from Eric Dumazet.

 5) txtimer must be deleted in stmmac suspend(), from Nicolin Chen.

 6) Fix TC queue mapping in bnxt_en driver, from Michael Chan.

 7) Various netdevsim fixes from Taehee Yoo (use of uninitialized data,
    snapshot panics, stack out of bounds, etc.)

 8) cls_tcindex changes hash table size after allocating the table, fix
    from Cong Wang.

 9) Fix regression in the enforcement of session ID uniqueness in l2tp.
    We only have to enforce uniqueness for IP based tunnels not UDP
    ones. From Ridge Kennedy.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits)
  gtp: use __GFP_NOWARN to avoid memalloc warning
  l2tp: Allow duplicate session creation with UDP
  r8152: Add MAC passthrough support to new device
  net_sched: fix an OOB access in cls_tcindex
  qed: Remove set but not used variable 'p_link'
  tc-testing: add missing 'nsPlugin' to basic.json
  tc-testing: fix eBPF tests failure on linux fresh clones
  net: hsr: fix possible NULL deref in hsr_handle_frame()
  netdevsim: remove unused sdev code
  netdevsim: use __GFP_NOWARN to avoid memalloc warning
  netdevsim: use IS_ERR instead of IS_ERR_OR_NULL for debugfs
  netdevsim: fix stack-out-of-bounds in nsim_dev_debugfs_init()
  netdevsim: fix panic in nsim_dev_take_snapshot_write()
  netdevsim: disable devlink reload when resources are being used
  netdevsim: fix using uninitialized resources
  bnxt_en: Fix TC queue mapping.
  bnxt_en: Fix logic that disables Bus Master during firmware reset.
  bnxt_en: Fix RDMA driver failure with SRIOV after firmware reset.
  bnxt_en: Refactor logic to re-enable SRIOV after firmware reset detected.
  net: stmmac: Delete txtimer in suspend()
  ...
2020-02-04 13:32:20 +00:00
Linus Torvalds
71c3a888cb powerpc updates for 5.6
- Implement user_access_begin() and friends for our platforms that support
    controlling kernel access to userspace.
 
  - Enable CONFIG_VMAP_STACK on 32-bit Book3S and 8xx.
 
  - Some tweaks to our pseries IOMMU code to allow SVMs ("secure" virtual
    machines) to use the IOMMU.
 
  - Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 32-bit VDSO, and
    some other improvements.
 
  - A series to use the PCI hotplug framework to control opencapi card's so that
    they can be reset and re-read after flashing a new FPGA image.
 
 As well as other minor fixes and improvements as usual.
 
 Thanks to:
  Alastair D'Silva, Alexandre Ghiti, Alexey Kardashevskiy, Andrew Donnellan,
  Aneesh Kumar K.V, Anju T Sudhakar, Bai Yingjie, Chen Zhou, Christophe Leroy,
  Frederic Barrat, Greg Kurz, Jason A. Donenfeld, Joel Stanley, Jordan Niethe,
  Julia Lawall, Krzysztof Kozlowski, Laurent Dufour, Laurentiu Tudor, Linus
  Walleij, Michael Bringmann, Nathan Chancellor, Nicholas Piggin, Nick
  Desaulniers, Oliver O'Halloran, Peter Ujfalusi, Pingfan Liu, Ram Pai, Randy
  Dunlap, Russell Currey, Sam Bobroff, Sebastian Andrzej Siewior, Shawn
  Anastasio, Stephen Rothwell, Steve Best, Sukadev Bhattiprolu, Thiago Jung
  Bauermann, Tyrel Datwyler, Vaibhav Jain.
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Merge tag 'powerpc-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "A pretty small batch for us, and apologies for it being a bit late, I
  wanted to sneak Christophe's user_access_begin() series in.

  Summary:

   - Implement user_access_begin() and friends for our platforms that
     support controlling kernel access to userspace.

   - Enable CONFIG_VMAP_STACK on 32-bit Book3S and 8xx.

   - Some tweaks to our pseries IOMMU code to allow SVMs ("secure"
     virtual machines) to use the IOMMU.

   - Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 32-bit
     VDSO, and some other improvements.

   - A series to use the PCI hotplug framework to control opencapi
     card's so that they can be reset and re-read after flashing a new
     FPGA image.

  As well as other minor fixes and improvements as usual.

  Thanks to: Alastair D'Silva, Alexandre Ghiti, Alexey Kardashevskiy,
  Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Bai Yingjie, Chen
  Zhou, Christophe Leroy, Frederic Barrat, Greg Kurz, Jason A.
  Donenfeld, Joel Stanley, Jordan Niethe, Julia Lawall, Krzysztof
  Kozlowski, Laurent Dufour, Laurentiu Tudor, Linus Walleij, Michael
  Bringmann, Nathan Chancellor, Nicholas Piggin, Nick Desaulniers,
  Oliver O'Halloran, Peter Ujfalusi, Pingfan Liu, Ram Pai, Randy Dunlap,
  Russell Currey, Sam Bobroff, Sebastian Andrzej Siewior, Shawn
  Anastasio, Stephen Rothwell, Steve Best, Sukadev Bhattiprolu, Thiago
  Jung Bauermann, Tyrel Datwyler, Vaibhav Jain"

* tag 'powerpc-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (131 commits)
  powerpc: configs: Cleanup old Kconfig options
  powerpc/configs/skiroot: Enable some more hardening options
  powerpc/configs/skiroot: Disable xmon default & enable reboot on panic
  powerpc/configs/skiroot: Enable security features
  powerpc/configs/skiroot: Update for symbol movement only
  powerpc/configs/skiroot: Drop default n CONFIG_CRYPTO_ECHAINIV
  powerpc/configs/skiroot: Drop HID_LOGITECH
  powerpc/configs: Drop NET_VENDOR_HP which moved to staging
  powerpc/configs: NET_CADENCE became NET_VENDOR_CADENCE
  powerpc/configs: Drop CONFIG_QLGE which moved to staging
  powerpc: Do not consider weak unresolved symbol relocations as bad
  powerpc/32s: Fix kasan_early_hash_table() for CONFIG_VMAP_STACK
  powerpc: indent to improve Kconfig readability
  powerpc: Provide initial documentation for PAPR hcalls
  powerpc: Implement user_access_save() and user_access_restore()
  powerpc: Implement user_access_begin and friends
  powerpc/32s: Prepare prevent_user_access() for user_access_end()
  powerpc/32s: Drop NULL addr verification
  powerpc/kuap: Fix set direction in allow/prevent_user_access()
  powerpc/32s: Fix bad_kuap_fault()
  ...
2020-02-04 13:06:46 +00:00
Linus Torvalds
a45ad71e89 remoteproc updates for v5.6
This adds support for the Mediatek MT8183 SCP, modem remoteproc on
 Qualcomm SC7180 platform, audio and sensor remoteprocs on Qualcomm
 MSM8998 and audio, compute, modem and sensor remoteprocs on Qualcomm
 SM8150.
 It adds votes for necessary power-domains for all Qualcomm TrustZone
 based remoteproc instances are held, fixes a bug related to remoteproc
 drivers registering before the core has been initialized and does clean
 up the Qualcomm modem remoteproc driver.
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Merge tag 'rproc-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This adds support for the Mediatek MT8183 SCP, modem remoteproc on
  Qualcomm SC7180 platform, audio and sensor remoteprocs on Qualcomm
  MSM8998 and audio, compute, modem and sensor remoteprocs on Qualcomm
  SM8150.

  It adds votes for necessary power-domains for all Qualcomm TrustZone
  based remoteproc instances are held, fixes a bug related to remoteproc
  drivers registering before the core has been initialized and does
  clean up the Qualcomm modem remoteproc driver"

* tag 'rproc-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (21 commits)
  remoteproc: qcom: q6v5-mss: Improve readability of reset_assert
  remoteproc: qcom: q6v5-mss: Use regmap_read_poll_timeout
  remoteproc: qcom: q6v5-mss: Rename boot status timeout
  remoteproc: qcom: q6v5-mss: Improve readability across clk handling
  remoteproc: use struct_size() helper
  remoteproc: Initialize rproc_class before use
  rpmsg: add rpmsg support for mt8183 SCP.
  remoteproc/mediatek: add SCP support for mt8183
  dt-bindings: Add a binding for Mediatek SCP
  remoteproc: mss: q6v5-mss: Add modem support on SC7180
  dt-bindings: remoteproc: qcom: Add Q6V5 Modem PIL binding for SC7180
  remoteproc: qcom: pas: Add MSM8998 ADSP and SLPI support
  dt-bindings: remoteproc: qcom: Add ADSP and SLPI support for MSM8998 SoC
  remoteproc: q6v5-mss: Remove mem clk from the active pool
  remoteproc: qcom: Remove unneeded semicolon
  remoteproc: qcom: pas: Add auto_boot flag
  remoteproc: qcom: pas: Add SM8150 ADSP, CDSP, Modem and SLPI support
  dt-bindings: remoteproc: qcom: SM8150 Add ADSP, CDSP, MPSS and SLPI support
  remoteproc: qcom: pas: Vote for active/proxy power domains
  dt-bindings: remoteproc: qcom: Add power-domain bindings for Q6V5 PAS
  ...
2020-02-04 09:06:24 +00:00
Linus Torvalds
cc12071ff3 Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
 "The rest of MM and the rest of everything else: hotfixes, ipc, misc,
  procfs, lib, cleanups, arm"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (67 commits)
  ARM: dma-api: fix max_pfn off-by-one error in __dma_supported()
  treewide: remove redundant IS_ERR() before error code check
  include/linux/cpumask.h: don't calculate length of the input string
  lib: new testcases for bitmap_parse{_user}
  lib: rework bitmap_parse()
  lib: make bitmap_parse_user a wrapper on bitmap_parse
  lib: add test for bitmap_parse()
  bitops: more BITS_TO_* macros
  lib/string: add strnchrnul()
  proc: convert everything to "struct proc_ops"
  proc: decouple proc from VFS with "struct proc_ops"
  asm-generic/tlb: provide MMU_GATHER_TABLE_FREE
  asm-generic/tlb: rename HAVE_MMU_GATHER_NO_GATHER
  asm-generic/tlb: rename HAVE_MMU_GATHER_PAGE_SIZE
  asm-generic/tlb: rename HAVE_RCU_TABLE_FREE
  asm-generic/tlb: add missing CONFIG symbol
  asm-gemeric/tlb: remove stray function declarations
  asm-generic/tlb: avoid potential double flush
  mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush
  powerpc/mmu_gather: enable RCU_TABLE_FREE even for !SMP case
  ...
2020-02-04 07:24:48 +00:00
Douglas Anderson
8cff43d46c dt-bindings: clock: Cleanup qcom,videocc bindings for sdm845/sc7180
This makes the qcom,videocc bindings match the recent changes to the
dispcc and gpucc.

1. Switched to using "bi_tcxo" instead of "xo".

2. Adds a description for the XO clock.  Not terribly important but
   nice if it cleanly matches its cousins.

3. Updates the example to use the symbolic name for the RPMH clock and
   also show that the real devices are currently using 2 address cells
   / size cells and fixes the spacing on the closing brace.

4. Split into 2 files.  In this case they could probably share one
   file, but let's be consistent.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lkml.kernel.org/r/20200203103049.v4.11.I27bbd90045f38cd3218c259526409d52a48efb35@changeid
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-02-03 23:05:06 -08:00
Douglas Anderson
e6747e24f1 dt-bindings: clock: Fix qcom,gpucc bindings for sdm845/sc7180/msm8998
The qcom,gpucc bindings had a few problems with them:

1. When things were converted to yaml the name of the "gpll0 main"
   clock got changed from "gpll0" to "gpll0_main".  Change it back for
   msm8998.

2. Apparently there is a push not to use purist aliases for clocks but
   instead to just use the internal Qualcomm names.  For sdm845 and
   sc7180 (where the drivers haven't already been changed) move in
   this direction.

Things were also getting complicated harder to deal with by jamming
several SoCs into one file.  Splitting simplifies things.

Fixes: 5c6f3a36b9 ("dt-bindings: clock: Add YAML schemas for the QCOM GPUCC clock bindings")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lkml.kernel.org/r/20200203103049.v4.7.I513cd73b16665065ae6c22cf594d8b543745e28c@changeid
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-02-03 23:05:05 -08:00
Douglas Anderson
48cabc221f dt-bindings: clock: Fix qcom,dispcc bindings for sdm845/sc7180
The qcom,dispcc bindings had a few problems with them:

1. They didn't specify all the clocks that dispcc is a client of.
   Specifically on sc7180 there are two clocks from the DSI PHY and
   two from the DP PHY.  On sdm845 there are actually two DSI PHYs
   (each of which has two clocks) and an extra clock from the gcc.
   These all need to be specified.

2. The sdm845.dtsi has existed for quite some time without specifying
   the clocks.  The Linux driver was relying on global names to match
   things up.  While we should transition things, it should be noted
   in the bindings.

3. The names used the bindings for "xo" and "gpll0" didn't match the
   names that QC used for these clocks internally and this was causing
   confusion / difficulty with their code generation tools.  Switched
   to the internal names to simplify everyone's lives.  It's not quite
   as clean in a purist sense but it should avoid headaches.  This
   officially changes the binding, but that seems OK in this case.

Also note that I updated the example.

Fixes: 5d28e44ba6 ("dt-bindings: clock: Add YAML schemas for the QCOM DISPCC clock bindings")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lkml.kernel.org/r/20200203103049.v4.2.I0c4bbb0f75a0880cd4bd90d8b267271e2375e0d0@changeid
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-02-03 23:04:02 -08:00
Linus Torvalds
eadc4e40e6 RTC for 5.6
Subsystem:
  - the VL_READ and VL_CLR ioctls are now documented and their behavior is
    unified across all the drivers.
  - RTC_I2C_AND_SPI Kconfig option rework to avoid selecting both REGMAP_I2C and
    REGMAP_SPI unecessarily.
 
 Drivers:
  - at91rm9200: remove deprecated procfs, add sam9x60, sama5d4 and sama5d2
    compatibles.
  - cmos: solve lost interrupts issue on MS Surface 3
  - hym8563: return proper errno when time is invalid
  - rv3029: many fixes, nvram support
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Merge tag 'rtc-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "The VL_READ and VL_CLR ioctls have been reworked to be more useful.
  This will not break userspace as there are very few users and they are
  using the integer value as a boolean.

  Apart from that, two drivers were reworked and a few fixes here and
  there for a net reduction of number of lines.

  Summary:

  Subsystem:
   - the VL_READ and VL_CLR ioctls are now documented and their behavior
     is unified across all the drivers.
   - RTC_I2C_AND_SPI Kconfig option rework to avoid selecting both
     REGMAP_I2C and REGMAP_SPI unecessarily.

  Drivers:
   - at91rm9200: remove deprecated procfs, add sam9x60, sama5d4 and
     sama5d2 compatibles.
   - cmos: solve lost interrupts issue on MS Surface 3
   - hym8563: return proper errno when time is invalid
   - rv3029: many fixes, nvram support"

* tag 'rtc-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (63 commits)
  dt-bindings: rtc: at91rm9200: document clocks property
  rtc: i2c/spi: Avoid inclusion of REGMAP support when not needed
  rtc: Kconfig: select REGMAP_I2C when necessary
  rtc: Kconfig: properly indent sd3078 entry
  rtc: cmos: Refactor code by using the new dmi_get_bios_year() helper
  rtc: cmos: Use predefined value for RTC IRQ on legacy x86
  rtc: cmos: Stop using shared IRQ
  rtc: tps6586x: Use IRQ_NOAUTOEN flag
  rtc: at91rm9200: use FIELD_PREP/FIELD_GET
  rtc: at91rm9200: avoid time readout in at91_rtc_setalarm
  rtc: at91rm9200: move register definitions to C file
  rtc: at91rm9200: add sama5d4 and sama5d2 compatibles
  dt-bindings: rtc: at91rm9200: convert bindings to json-schema
  rtc: at91rm9200: remove procfs information
  dt-bindings: atmel, at91rm9200-rtc: add microchip, sam9x60-rtc
  rtc: pcf8563: Use BIT
  rtc: moxart: Convert to SPDX identifier
  rtc: ds1343: Remove unused struct spi_device in struct ds1343_priv
  rtc: rx8025: Remove struct i2c_client from struct rx8025_data
  rtc: hym8563: Read the valid flag directly instead of caching it
  ...
2020-02-04 07:03:40 +00:00
Manfred Spraul
39323c64b8 smp_mb__{before,after}_atomic(): update Documentation
When adding the _{acquire|release|relaxed}() variants of some atomic
operations, it was forgotten to update Documentation/memory_barrier.txt:

smp_mb__{before,after}_atomic() is now intended for all RMW operations
that do not imply a memory barrier.

1)
	smp_mb__before_atomic();
	atomic_add();

2)
	smp_mb__before_atomic();
	atomic_xchg_relaxed();

3)
	smp_mb__before_atomic();
	atomic_fetch_add_relaxed();

Invalid would be:
	smp_mb__before_atomic();
	atomic_set();

In addition, the patch splits the long sentence into multiple shorter
sentences.

Link: http://lkml.kernel.org/r/20191020123305.14715-2-manfred@colorfullife.com
Fixes: 654672d4ba ("locking/atomics: Add _{acquire|release|relaxed}() variants of some atomic operations")
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Acked-by: Waiman Long <longman@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <1vier1@web.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-02-04 03:05:23 +00:00
Linus Torvalds
f4a6365ae8 There are a few changes to the core framework this time around, in addition to
the normal collection of driver updates to support new SoCs, fix incorrect
 data, and convert various drivers to clk_hw based APIs.
 
 In the core, we allow clk_ops::init() to return an error code now so that we
 can fail clk registration if the callback does something like fail to allocate
 memory. We also add a new "terminate" clk_op so that things done in
 clk_ops::init() can be undone, e.g. free memory. We also spit out a warning now
 when critical clks fail to enable and we support changing clk rates and
 enable/disable state through debugfs when developers compile the kernel
 themselves.
 
 On the driver front, we get support for what seems like a lot of Qualcomm and
 NXP SoCs given that those vendors dominate the diffstat. There are a couple new
 drivers for Xilinx and Amlogic SoCs too. The updates are all small things like
 fixing the way glitch free muxes switch parents, avoiding div-by-zero problems,
 or fixing data like parent names. See the updates section below for more
 details.
 
 Finally, the "basic" clk types have been converted to support specifying
 parents with clk_hw pointers. This work includes an overhaul of the fixed-rate
 clk type to be more modern by using clk_hw APIs.
 
 Core:
  - Let clk_ops::init() return an error code
  - Add a clk_ops::terminate() callback to undo clk_ops::init()
  - Warn about critical clks that fail to enable or prepare
  - Support dangerous debugfs actions on clks with dead code
 
 New Drivers:
  - Support for Xilinx Versal platform clks
  - Display clk controller on qcom sc7180
  - Video clk controller on qcom sc7180
  - Graphics clk controller on qcom sc7180
  - CPU PLLs for qcom msm8916
  - Move qcom msm8974 gfx3d clk to RPM control
  - Display port clk support on qcom sdm845 SoCs
  - Global clk controller on qcom ipq6018
  - Add a driver for BCLK of Freescale SAI cores
  - Add cam, vpe and sgx clock support for TI dra7
  - Add aess clock support for TI omap5
  - Enable clks for CPUfreq on Allwinner A64 SoCs
  - Add Amlogic meson8b DDR clock controller
  - Add input clocks to Amlogic meson8b controllers
  - Add SPIBSC (SPI FLASH) clock on Renesas RZ/A2
  - i.MX8MP clk driver support
 
 Updates:
  - Convert gpio, fixed-factor, mux, gate, divider basic clks to hw based APIs
  - Detect more PRMCU variants in ux500 driver
  - Adjust the composite clk type to new way of describing clk parents
  - Fixes for clk controllers on qcom msm8998 SoCs
  - Fix gmac main clock for TI dra7
  - Move TI dra7-atl clock header to correct location
  - Fix hidden node name dependency on TI clkctrl clocks
  - Fix Amlogic meson8b mali clock update using the glitch free mux
  - Fix Amlogic pll driver division by zero at init
  - Prepare for split of Renesas R-Car H3 ES1.x and ES2.0+ config symbols
  - Switch more i.MX clk drivers to clk_hw based APIs
  - Disable non-functional divider between pll4_audio_div and
    pll4_post_div on imx6q
  - Fix watchdog2 clock name typo in imx7ulp clock driver
  - Set CLK_GET_RATE_NOCACHE flag for DRAM related clocks on i.MX8M SoCs
  - Suppress bind attrs for i.MX8M clock driver
  - Add a big comment in imx8qxp-lpcg driver to tell why
    devm_platform_ioremap_resource() shouldn't be used for the driver
  - A correction on i.MX8MN usb1_ctrl parent clock setting
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "There are a few changes to the core framework this time around, in
  addition to the normal collection of driver updates to support new
  SoCs, fix incorrect data, and convert various drivers to clk_hw based
  APIs.

  In the core, we allow clk_ops::init() to return an error code now so
  that we can fail clk registration if the callback does something like
  fail to allocate memory. We also add a new "terminate" clk_op so that
  things done in clk_ops::init() can be undone, e.g. free memory. We
  also spit out a warning now when critical clks fail to enable and we
  support changing clk rates and enable/disable state through debugfs
  when developers compile the kernel themselves.

  On the driver front, we get support for what seems like a lot of
  Qualcomm and NXP SoCs given that those vendors dominate the diffstat.
  There are a couple new drivers for Xilinx and Amlogic SoCs too. The
  updates are all small things like fixing the way glitch free muxes
  switch parents, avoiding div-by-zero problems, or fixing data like
  parent names. See the updates section below for more details.

  Finally, the "basic" clk types have been converted to support
  specifying parents with clk_hw pointers. This work includes an
  overhaul of the fixed-rate clk type to be more modern by using clk_hw
  APIs.

  Core:
   - Let clk_ops::init() return an error code
   - Add a clk_ops::terminate() callback to undo clk_ops::init()
   - Warn about critical clks that fail to enable or prepare
   - Support dangerous debugfs actions on clks with dead code

  New Drivers:
   - Support for Xilinx Versal platform clks
   - Display clk controller on qcom sc7180
   - Video clk controller on qcom sc7180
   - Graphics clk controller on qcom sc7180
   - CPU PLLs for qcom msm8916
   - Move qcom msm8974 gfx3d clk to RPM control
   - Display port clk support on qcom sdm845 SoCs
   - Global clk controller on qcom ipq6018
   - Add a driver for BCLK of Freescale SAI cores
   - Add cam, vpe and sgx clock support for TI dra7
   - Add aess clock support for TI omap5
   - Enable clks for CPUfreq on Allwinner A64 SoCs
   - Add Amlogic meson8b DDR clock controller
   - Add input clocks to Amlogic meson8b controllers
   - Add SPIBSC (SPI FLASH) clock on Renesas RZ/A2
   - i.MX8MP clk driver support

  Updates:
   - Convert gpio, fixed-factor, mux, gate, divider basic clks to hw
     based APIs
   - Detect more PRMCU variants in ux500 driver
   - Adjust the composite clk type to new way of describing clk parents
   - Fixes for clk controllers on qcom msm8998 SoCs
   - Fix gmac main clock for TI dra7
   - Move TI dra7-atl clock header to correct location
   - Fix hidden node name dependency on TI clkctrl clocks
   - Fix Amlogic meson8b mali clock update using the glitch free mux
   - Fix Amlogic pll driver division by zero at init
   - Prepare for split of Renesas R-Car H3 ES1.x and ES2.0+ config
     symbols
   - Switch more i.MX clk drivers to clk_hw based APIs
   - Disable non-functional divider between pll4_audio_div and
     pll4_post_div on imx6q
   - Fix watchdog2 clock name typo in imx7ulp clock driver
   - Set CLK_GET_RATE_NOCACHE flag for DRAM related clocks on i.MX8M
     SoCs
   - Suppress bind attrs for i.MX8M clock driver
   - Add a big comment in imx8qxp-lpcg driver to tell why
     devm_platform_ioremap_resource() shouldn't be used for the driver
   - A correction on i.MX8MN usb1_ctrl parent clock setting"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (140 commits)
  dt/bindings: clk: fsl,plldig: Drop 'bindings' from schema id
  clk: ls1028a: Fix warning on clamp() usage
  clk: qoriq: add ls1088a hwaccel clocks support
  clk: ls1028a: Add clock driver for Display output interface
  dt/bindings: clk: Add YAML schemas for LS1028A Display Clock bindings
  clk: fsl-sai: new driver
  dt-bindings: clock: document the fsl-sai driver
  clk: composite: add _register_composite_pdata() variants
  clk: qcom: rpmh: Sort OF match table
  dt-bindings: fix warnings in validation of qcom,gcc.yaml
  dt-binding: fix compilation error of the example in qcom,gcc.yaml
  clk: zynqmp: Add support for clock with CLK_DIVIDER_POWER_OF_TWO flag
  clk: zynqmp: Fix divider calculation
  clk: zynqmp: Add support for get max divider
  clk: zynqmp: Warn user if clock user are more than allowed
  clk: zynqmp: Extend driver for versal
  dt-bindings: clock: Add bindings for versal clock driver
  clk: ti: clkctrl: Fix hidden dependency to node name
  clk: ti: add clkctrl data dra7 sgx
  clk: ti: omap5: Add missing AESS clock
  ...
2020-02-03 22:10:18 +00:00
Linus Torvalds
fe70da5a32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a driver for SGI IOC3 PS/2 controller

 - updates to driver for FocalTech FT5x06 series touch screen
   controllers

 - other assorted fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics-rmi4 - switch to reduced reporting mode
  dt-bindings: touchscreen: Convert Goodix touchscreen to json-schema
  dt-bindings: touchscreen: Add touchscreen schema
  Input: add IOC3 serio driver
  Input: axp20x-pek - enable wakeup for all AXP variants
  Input: axp20x-pek - respect userspace wakeup configuration
  Input: ads7846 - use new `delay` structure for SPI transfer delays
  Input: edt-ft5x06 - use pm core to enable/disable the wake irq
  Input: edt-ft5x06 - make wakeup-source switchable
  Input: edt-ft5x06 - document wakeup-source capability
  Input: edt-ft5x06 - alphabetical include reorder
  Input: edt-ft5x06 - work around first register access error
  Input: apbps2 - add __iomem to register struct
  Input: axp20x-pek - make device attributes static
  Input: elants_i2c - check Remark ID when attempting firmware update
2020-02-03 22:05:15 +00:00
Douglas Anderson
2a8aa18c11 dt-bindings: clk: qcom: Fix self-validation, split, and clean cruft
The 'qcom,gcc.yaml' file failed self-validation (dt_binding_check)
because it required a property to be either (3 entries big),
(3 entries big), or (7 entries big), but not more than one of those
things.  That didn't make a ton of sense.

This patch splits all of the exceptional device trees (AKA those that
would have needed if/then/else rules) from qcom,gcc.yaml.  It also
cleans up some cruft found while doing that.

After this lands, this worked for me atop clk-next with just the known
error about msm8998:
  for f in \
    Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml \
    Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml \
    Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml \
    Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml \
    Documentation/devicetree/bindings/clock/qcom,gcc-qcs404.yaml \
    Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml \
    Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml \
    Documentation/devicetree/bindings/clock/qcom,gcc.yaml; do \
      ARCH=arm64 make dtbs_check DT_SCHEMA_FILES=$f; \
  done

I then picked this patch atop linux-next (next-20200129) and ran:
  # Delete broken yaml:
  rm Documentation/devicetree/bindings/pci/intel-gw-pcie.yaml
  ARCH=arm64 make dt_binding_check | grep 'clock/qcom'
...and that didn't seem to indicate problems.

Arbitrary decisions made (yell if you want changed):
- Left all the older devices (where clocks / clock-names weren't
  specified) in a single file.
- Didn't make clocks "required" for msm8996 but left them as listed.
  This seems a little weird but it matches the old binding.

Misc cleanups as part of this patch:
- Fixed schema id to not have "bindings/" as per Rob [1].
- Listed include files as per Stephen.
- sm8150 was claimed to be same set of clocks as sc7180, but driver
  and dts appear to say that "bi_tcxo_ao" doesn't exist.  Fixed.
- In "apq8064", "#thermal-sensor-cells" was missing the "#".
- Got rid of "|" at the end of top description since spacing doesn't
  matter.
- Changed indentation to consistently 2 spaces (it was 3 in some
  places).
- Added period at the end of protected-clocks description.
- No space before ":".
- Updated sc7180/sm8150 example to use the 'qcom,rpmh.h' include.
- Updated sc7180/sm8150 example to use larger address/size cells as
  per reality.
- Updated sc7180/sm8150 example to point to the sleep_clk rather than
  <0>.
- Made it so that gcc-ipq8074 didn't require #power-domain-cells since
  actual dts didn't have it and I got no hits from:
    git grep _GDSC include/dt-bindings/clock/qcom,gcc-ipq8074.h
- Made it so that gcc-qcs404 didn't require #power-domain-cells since
  actual dts didn't have it and I got no hits from:
    git grep _GDSC include/dt-bindings/clock/qcom,gcc-qcs404.h

Noticed, but not done in this patch (volunteers needed):
- Add "aud_ref_clk" to sm8150 bindings / dts even though I found a
  reference to it in "gcc-sm8150.c".
- Fix node name in actual ipq8074 to be "clock-controller" (it's gcc).
- Since the example doesn't need phandes to exist, in msm8998 could
  just make up places providing some of the clocks currently bogused
  out with <0>.
- On msm8998 clocks are listed as required but current dts doesn't
  have them.

[1] https://lore.kernel.org/r/CAL_Jsq+_2E-bAbP9F6VYkWRp0crEyRGa5peuwP58-PZniVny7w@mail.gmail.com

Fixes: ab91f72e01 ("clk: qcom: gcc-msm8996: Fix parent for CLKREF clocks")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lkml.kernel.org/r/20200203094843.v3.1.I4452dc951d7556ede422835268742b25a18b356b@changeid
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-02-03 11:26:06 -08:00
Stephen Boyd
fc6a15c853 dt/bindings: clk: fsl,plldig: Drop 'bindings' from schema id
Having 'bindings' in here causes a warning when checking the schema.

 Documentation/devicetree/bindings/clock/fsl,plldig.yaml:
 $id: relative path/filename doesn't match actual path or filename
         expected: http://devicetree.org/schemas/clock/fsl,plldig.yaml#

Remove it.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Wen He <wen.he_1@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20200203052507.93215-2-sboyd@kernel.org
Acked-by: Rob Herring <robh@kernel.org>
2020-02-03 10:33:34 -08:00
Masahiro Yamada
5f2fb52fac kbuild: rename hostprogs-y/always to hostprogs/always-y
In old days, the "host-progs" syntax was used for specifying host
programs. It was renamed to the current "hostprogs-y" in 2004.

It is typically useful in scripts/Makefile because it allows Kbuild to
selectively compile host programs based on the kernel configuration.

This commit renames like follows:

  always       ->  always-y
  hostprogs-y  ->  hostprogs

So, scripts/Makefile will look like this:

  always-$(CONFIG_BUILD_BIN2C) += ...
  always-$(CONFIG_KALLSYMS)    += ...
      ...
  hostprogs := $(always-y) $(always-m)

I think this makes more sense because a host program is always a host
program, irrespective of the kernel configuration. We want to specify
which ones to compile by CONFIG options, so always-y will be handier.

The "always", "hostprogs-y", "hostprogs-m" will be kept for backward
compatibility for a while.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-02-04 01:53:07 +09:00
Masahiro Yamada
faa7bdd7e9 kbuild: fix the document to use extra-y for vmlinux.lds
The difference between "always" and "extra-y" is that the targets
listed in $(always) are always built, whereas the ones in $(extra-y)
are built only when KBUILD_BUILTIN is set.

So, "make modules" does not build the targets in $(extra-y).

vmlinux.lds is only needed for linking vmlinux. So, adding it to extra-y
is more correct. In fact, arch/x86/kernel/Makefile does this.

Fix the example code.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-02-04 01:50:52 +09:00
Linus Torvalds
af32f3a414 - New Drivers
- Add support for ROHM BD71828 PMICs and GPIOs
    - Add support for Qualcomm Aqstic Audio Codecs WCD9340 and WCD9341
 
 - New Device Support
    - Add support for BD71828 to BD70528 RTC driver
    - Add support for Intel's Jasper Lake to LPSS PCI
 
  - New Functionality
    - Add support for Power Key to ROHM BD71828
    - Add support for Clocks to ROHM BD71828
    - Add support for GPIOs to Dialog DA9062
    - Add support for USB PD Notify to ChromiumOS EC
    - Allow callers to specify args when requesting regmap lookup; syscon
 
  - Fix-ups
    - Improve error handling and sanity checking; atmel-hlcdc, dln2
    - Device Tree support/documentation; bd71828, da9062, xylon,logicvc,
                                         ab8500, max14577, atmel-usart
    - Match devices using platform IDs; bd7xxxx
    - Refactor BD718x7 regulator component; bd718x7-regulator
    - Use standard interfaces/helpers; syscon, sm501
    - Trivial (whitespace, spelling, etc); ab8500-core, Kconfig
    - Remove unused code; db8500-prcmu, tqmx86
    - Wait until boot has finished before accessing registers; madera-core
    - Provide missing register value defaults; cs47l15-tables
    - Allow more time for hardware to reset; madera-core
 
  - Bug Fixes
    - Fix erroneous register values; rohm-bd70528
    - Fix register volatility; axp20x, rn5t618
    - Fix Kconfig dependencies; MFD_MAX77650
    - Fix incorrect compatible string; da9062-core
    - Fix syscon_regmap_lookup_by_phandle_args() stub; syscon
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Merge tag 'mfd-next-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add support for ROHM BD71828 PMICs and GPIOs
   - Add support for Qualcomm Aqstic Audio Codecs WCD9340 and WCD9341

  New Device Support:
   - Add support for BD71828 to BD70528 RTC driver
   - Add support for Intel's Jasper Lake to LPSS PCI

  New Functionality:
   - Add support for Power Key to ROHM BD71828
   - Add support for Clocks to ROHM BD71828
   - Add support for GPIOs to Dialog DA9062
   - Add support for USB PD Notify to ChromiumOS EC
   - Allow callers to specify args when requesting regmap lookup; syscon

  Fix-ups:
   - Improve error handling and sanity checking; atmel-hlcdc, dln2
   - Device Tree support/documentation; bd71828, da9062, xylon,logicvc,
     ab8500, max14577, atmel-usart
   - Match devices using platform IDs; bd7xxxx
   - Refactor BD718x7 regulator component; bd718x7-regulator
   - Use standard interfaces/helpers; syscon, sm501
   - Trivial (whitespace, spelling, etc); ab8500-core, Kconfig
   - Remove unused code; db8500-prcmu, tqmx86
   - Wait until boot has finished before accessing registers;
     madera-core
   - Provide missing register value defaults; cs47l15-tables
   - Allow more time for hardware to reset; madera-core

  Bug Fixes:
   - Fix erroneous register values; rohm-bd70528
   - Fix register volatility; axp20x, rn5t618
   - Fix Kconfig dependencies; MFD_MAX77650
   - Fix incorrect compatible string; da9062-core
   - Fix syscon_regmap_lookup_by_phandle_args() stub; syscon"

* tag 'mfd-next-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (41 commits)
  mfd: syscon: Fix syscon_regmap_lookup_by_phandle_args() dummy
  mfd: wcd934x: Add support to wcd9340/wcd9341 codec
  mfd: syscon: Add arguments support for syscon reference
  mfd: rn5t618: Mark ADC control register volatile
  dt-bindings: atmel-usart: Add microchip,sam9x60-{usart, dbgu}
  dt-bindings: atmel-usart: Remove wildcard
  mfd: cros_ec: Add cros-usbpd-notify subdevice
  mfd: da9062: Fix watchdog compatible string
  mfd: madera: Allow more time for hardware reset
  mfd: cs47l15: Add missing register default
  mfd: madera: Wait for boot done before accessing any other registers
  mfd: Kconfig: Rename Samsung to lowercase
  mfd: tqmx86: remove set but not used variable 'i2c_ien'
  mfd: dbx500-prcmu: Drop DSI pll clock functions
  mfd: dbx500-prcmu: Drop set_display_clocks()
  mfd: max77650: Select REGMAP_IRQ in Kconfig
  mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile
  mfd: ab8500: Fix ab8500-clk typo
  mfd: intel-lpss: Add Intel Jasper Lake PCI IDs
  dt-bindings: mfd: max14577: Add reference to max14040_battery.txt descriptions
  ...
2020-02-03 14:51:57 +00:00
Rafael J. Wysocki
c21502efda Documentation: admin-guide: PM: Update sleep states documentation
There is some information in Documentation/power/interface.rst that
is still missing from Documentation/admin-guide/pm/sleep-states.rst
and really should be present in there, so update the latter by
adding that information to it and delete the former (as it becomes
redundant after that and it is somewhat outdated).

While at it, clean up some assorted pieces of sleep-states.rst a bit.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-02-03 11:58:26 +01:00
Rafael J. Wysocki
4dcb78ee57 intel_idle: Introduce 'states_off' module parameter
In certain system configurations it may not be desirable to use some
C-states assumed to be available by intel_idle and the driver needs
to be prevented from using them even before the cpuidle sysfs
interface becomes accessible to user space.  Currently, the only way
to achieve that is by setting the 'max_cstate' module parameter to a
value lower than the index of the shallowest of the C-states in
question, but that may be overly intrusive, because it effectively
makes all of the idle states deeper than the 'max_cstate' one go
away (and the C-state to avoid may be in the middle of the range
normally regarded as available).

To allow that limitation to be overcome, introduce a new module
parameter called 'states_off' to represent a list of idle states to
be disabled by default in the form of a bitmask and update the
documentation to cover it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-02-03 11:57:18 +01:00
Rafael J. Wysocki
3a5be9b8f4 intel_idle: Introduce 'use_acpi' module parameter
For diagnostics, it is generally useful to be able to make intel_idle
take the system's ACPI tables into consideration even if that is not
required for the processor model in there, so introduce a new module
parameter, 'use_acpi', to make that happen and update the documentation
to cover it.

While at it, fix the 'no_acpi' module parameter name in the
documentation.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-02-03 11:57:08 +01:00
Linus Torvalds
545ae66582 LED updates for 5.6-rc1.
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Merge tag 'leds-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds

Pull LED updates from Pavel Machek:

 - New driver for TI TPS6105X

 - Add managed API to get a LED from a device driver

 - Misc fixes and updates

* tag 'leds-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (22 commits)
  leds: lm3692x: Disable chip on brightness 0
  leds: lm3692x: Split out lm3692x_leds_disable
  leds: lm3692x: Move lm3692x_init and rename to lm3692x_leds_enable
  leds: lm3692x: Make sure we don't exceed the maximum LED current
  dt: bindings: lm3692x: Add led-max-microamp property
  leds: lm3692x: Allow to configure over voltage protection
  dt: bindings: lm3692x: Add ti,ovp-microvolt property
  leds: populate the device's of_node
  leds: Add managed API to get a LED from a device driver
  leds: Add of_led_get() and led_put()
  leds: lm3532: add pointer to documentation and fix typo
  leds: lm3532: use extended registration so that LED can be used for backlight
  leds: lm3642: remove warnings for bad strtol, cleanup gotos
  leds: rb532: cleanup whitespace
  ledtrig-pattern: fix email address quoting in MODULE_AUTHOR()
  dt-bindings: mfd: update TI tps6105x chip bindings
  leds: tps6105x: add driver for MFD chip LED mode
  led: max77650: add of_match table
  leds: bd2802: Convert to use GPIO descriptors
  leds: pca963x: Fix open-drain initialization
  ...
2020-02-02 11:48:46 -08:00
Jakub Kicinski
b7c3a17c60 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Fix suspicious RCU usage in ipset, from Jozsef Kadlecsik.

2) Use kvcalloc, from Joe Perches.

3) Flush flowtable hardware workqueue after garbage collection run,
   from Paul Blakey.

4) Missing flowtable hardware workqueue flush from nf_flow_table_free(),
   also from Paul.

5) Restore NF_FLOW_HW_DEAD in flow_offload_work_del(), from Paul.

6) Flowtable documentation fixes, from Matteo Croce.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-02-01 12:38:20 -08:00
Linus Torvalds
14cd0bd049 Kconfig updates for v5.6
- add 'yes2modconfig' and 'mod2yesconfig' targets
 
  - sanitize help text
 
  - various code cleanups
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Merge tag 'kconfig-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kconfig updates from Masahiro Yamada:

 - add 'yes2modconfig' and 'mod2yesconfig' targets (useful mainly for
   turning syzbot configs into more modular ones as a step to minimizing
   the result)

 - sanitize help text

 - various code cleanups

* tag 'kconfig-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: fix documentation typos
  kconfig: fix an "implicit declaration of function" warning
  kconfig: fix nesting of symbol help text
  kconfig: distinguish between dependencies and visibility in help text
  kconfig: list all definitions of a symbol in help text
  kconfig: Add yes2modconfig and mod2yesconfig targets.
  kconfig: use $(PERL) in Makefile
  kconfig: fix too deep indentation in Makefile
  kconfig: localmodconfig: fix indentation for closing brace
  kconfig: localmodconfig: remove unused $config
  kconfig: squash prop_alloc() into menu_add_prop()
  kconfig: remove sym from struct property
  kconfig: remove 'prompt' argument from menu_add_prop()
  kconfig: move prompt handling to menu_add_prompt() from menu_add_prop()
  kconfig: remove 'prompt' symbol
  kconfig: drop T_WORD from the RHS of 'prompt' symbol
  kconfig: use parent->dep as the parentdep of 'menu'
  kconfig: remove the rootmenu check in menu_add_prop()
2020-02-01 10:25:55 -08:00
Linus Torvalds
368d060bb4 Kbuild updates for v5.6
- detect missing include guard in UAPI headers
 
  - do not create orphan built-in.a or obj-y objects
 
  - generate modules.builtin more simply, and drop tristate.conf
 
  - simplify built-in initramfs creation
 
  - make linux-headers deb package thinner
 
  - optimize the deb package build script
 
  - misc cleanups
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Merge tag 'kbuild-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - detect missing include guard in UAPI headers

 - do not create orphan built-in.a or obj-y objects

 - generate modules.builtin more simply, and drop tristate.conf

 - simplify built-in initramfs creation

 - make linux-headers deb package thinner

 - optimize the deb package build script

 - misc cleanups

* tag 'kbuild-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
  builddeb: split libc headers deployment out into a function
  builddeb: split kernel headers deployment out into a function
  builddeb: remove redundant make for ARCH=um
  builddeb: avoid invoking sub-shells where possible
  builddeb: remove redundant $objtree/
  builddeb: match temporary directory name to the package name
  builddeb: remove unneeded files in hdrobjfiles for headers package
  kbuild: use -S instead of -E for precise cc-option test in Kconfig
  builddeb: allow selection of .deb compressor
  kbuild: remove 'Building modules, stage 2.' log
  kbuild: remove *.tmp file when filechk fails
  kbuild: remove PYTHON2 variable
  modpost: assume STT_SPARC_REGISTER is defined
  gen_initramfs.sh: remove intermediate cpio_list on errors
  initramfs: refactor the initramfs build rules
  gen_initramfs.sh: always output cpio even without -o option
  initramfs: add default_cpio_list, and delete -d option support
  initramfs: generate dependency list and cpio at the same time
  initramfs: specify $(src)/gen_initramfs.sh as a prerequisite in Makefile
  initramfs: make initramfs compression choice non-optional
  ...
2020-02-01 10:01:52 -08:00
Michael Ellerman
4c25df5640 Merge branch 'topic/user-access-begin' into next
Merge the user_access_begin() series from Christophe. This is based on
a commit from Linus that went into v5.5-rc7.
2020-02-01 21:47:17 +11:00
Linus Torvalds
26dca6dbd6 pci-v5.6-changes
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Merge tag 'pci-v5.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 "Resource management:

   - Improve resource assignment for hot-added nested bridges, e.g.,
     Thunderbolt (Nicholas Johnson)

  Power management:

   - Optionally print config space of devices before suspend (Chen Yu)

   - Increase D3 delay for AMD Ryzen5/7 XHCI controllers (Daniel Drake)

  Virtualization:

   - Generalize DMA alias quirks (James Sewart)

   - Add DMA alias quirk for PLX PEX NTB (James Sewart)

   - Fix IOV memory leak (Navid Emamdoost)

  AER:

   - Log which device prevents error recovery (Yicong Yang)

  Peer-to-peer DMA:

   - Whitelist Intel SkyLake-E (Armen Baloyan)

  Broadcom iProc host bridge driver:

   - Apply PAXC quirk whether driver is built-in or module (Wei Liu)

  Broadcom STB host bridge driver:

   - Add Broadcom STB PCIe host controller driver (Jim Quinlan)

  Intel Gateway SoC host bridge driver:

   - Add driver for Intel Gateway SoC (Dilip Kota)

  Intel VMD host bridge driver:

   - Add support for DMA aliases on other buses (Jon Derrick)

   - Remove dma_map_ops overrides (Jon Derrick)

   - Remove now-unused X86_DEV_DMA_OPS (Christoph Hellwig)

  NVIDIA Tegra host bridge driver:

   - Fix Tegra30 afi_pex2_ctrl register offset (Marcel Ziswiler)

  Panasonic UniPhier host bridge driver:

   - Remove module code since driver can't be built as a module
     (Masahiro Yamada)

  Qualcomm host bridge driver:

   - Add support for SDM845 PCIe controller (Bjorn Andersson)

  TI Keystone host bridge driver:

   - Fix "num-viewport" DT property error handling (Kishon Vijay Abraham I)

   - Fix link training retries initiation (Yurii Monakov)

   - Fix outbound region mapping (Yurii Monakov)

  Misc:

   - Add Switchtec Gen4 support (Kelvin Cao)

   - Add Switchtec Intercomm Notify and Upstream Error Containment
     support (Logan Gunthorpe)

   - Use dma_set_mask_and_coherent() since Switchtec supports 64-bit
     addressing (Wesley Sheng)"

* tag 'pci-v5.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (60 commits)
  PCI: Allow adjust_bridge_window() to shrink resource if necessary
  PCI: Set resource size directly in adjust_bridge_window()
  PCI: Rename extend_bridge_window() to adjust_bridge_window()
  PCI: Rename extend_bridge_window() parameter
  PCI: Consider alignment of hot-added bridges when assigning resources
  PCI: Remove local variable usage in pci_bus_distribute_available_resources()
  PCI: Pass size + alignment to pci_bus_distribute_available_resources()
  PCI: Rename variables
  PCI: vmd: Add two VMD Device IDs
  PCI: Remove unnecessary braces
  PCI: brcmstb: Add MSI support
  PCI: brcmstb: Add Broadcom STB PCIe host controller driver
  x86/PCI: Remove X86_DEV_DMA_OPS
  PCI: vmd: Remove dma_map_ops overrides
  iommu/vt-d: Remove VMD child device sanity check
  iommu/vt-d: Use pci_real_dma_dev() for mapping
  PCI: Introduce pci_real_dma_dev()
  x86/PCI: Expose VMD's pci_dev in struct pci_sysdata
  x86/PCI: Add to_pci_sysdata() helper
  PCI/AER: Initialize aer_fifo
  ...
2020-01-31 14:48:54 -08:00
Linus Torvalds
846de71bed media updates for v5.6-rc1
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Merge tag 'media/v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - New staging driver for Rockship ISPv1 unit

 - New staging driver for Rockchip MIPI Synopsys DPHY RX0

 - y2038 fixes at V4L2 API (backward-compatible)

 - A dvb core fix when receiving invalid EIT sections

 - Some clang-specific warnings got fixed

 - Added support for touch V4L2 interface at vivid

 - Several drivers were converted to use the new
   i2c_new_scanned_device() kAPI

 - Added sm1 support at meson's vdec driver

 - Several other driver cleanups, fixes and improvements

* tag 'media/v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (207 commits)
  media: staging/intel-ipu3: remove TODO item about acronyms
  media: v4l2-fwnode: Print the node name while parsing endpoints
  media: Revert "media: staging/intel-ipu3: make imgu use fixed running mode"
  media: mt9v111: constify copied structure
  media: platform: VIDEO_MEDIATEK_JPEG can also depend on MTK_IOMMU
  media: uvcvideo: Add a quirk to force GEO GC6500 Camera bits-per-pixel value
  media: uvcvideo: Avoid cyclic entity chains due to malformed USB descriptors
  media: hantro: fix post-processing NULL pointer dereference
  media: rcar-vin: Use correct pixel format when aligning format
  media: MAINTAINERS: add entry for Rockchip ISP1 driver
  media: staging: rkisp1: add TODO file for staging
  media: staging: rkisp1: add document for rkisp1 meta buffer format
  media: staging: rkisp1: add output device for parameters
  media: staging: rkisp1: add capture device for statistics
  media: staging: rkisp1: add user space ABI definitions
  media: staging: rkisp1: add streaming paths
  media: staging: rkisp1: add Rockchip ISP1 base driver
  media: staging: phy-rockchip-dphy-rx0: add Rockchip MIPI Synopsys DPHY RX0 driver
  media: staging: dt-bindings: add Rockchip MIPI RX D-PHY RX0 yaml bindings
  media: staging: dt-bindings: add Rockchip ISP1 yaml bindings
  ...
2020-01-31 14:43:23 -08:00
Linus Torvalds
68b62e5d96 - Fix a SEVERE docs build failure for cpu idle cooling device (Randy Dunlap)
- Fix a spelling mistake in the error message for the stm32 (Colin Ian King)
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Merge tag 'thermal-v5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal fixes from Daniel Lezcano:

 - Fix a severe docs build failure for cpu idle cooling device (Randy
   Dunlap)

 - Fix a spelling mistake in the error message for the stm32 (Colin Ian
   King)

* tag 'thermal-v5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  thermal: stm32: fix spelling mistake "preprare" -> "prepare"
  Documentation: cpu-idle-cooling: fix a SEVERE docs build failure
2020-01-31 14:39:21 -08:00
Stephen Boyd
db865ee447 Merge branches 'clk-imx', 'clk-ti', 'clk-xilinx', 'clk-nvidia', 'clk-qcom', 'clk-freescale' and 'clk-qoriq' into clk-next
- Support for Xilinx Versal platform clks
 - Display clk controller on qcom sc7180
 - Video clk controller on qcom sc7180
 - Graphics clk controller on qcom sc7180
 - CPU PLLs for qcom msm8916
 - Fixes for clk controllers on qcom msm8998 SoCs
 - Move qcom msm8974 gfx3d clk to RPM control
 - Display port clk support on qcom sdm845 SoCs
 - Global clk controller on qcom ipq6018
 - Adjust composite clk to new way of describing clk parents
 - Add a driver for BCLK of Freescale SAI cores

* clk-imx: (32 commits)
  clk: imx: Add support for i.MX8MP clock driver
  dt-bindings: imx: Add clock binding doc for i.MX8MP
  clk: imx: gate4: Switch imx_clk_gate4_flags() to clk_hw based API
  clk: imx: imx8mq: Switch to clk_hw based API
  clk: imx: imx8mm: Switch to clk_hw based API
  clk: imx: imx8mn: Switch to clk_hw based API
  clk: imx: Remove __init for imx_obtain_fixed_clk_hw() API
  clk: imx: gate3: Switch to clk_hw based API
  clk: imx: add hw API imx_clk_hw_mux2_flags
  clk: imx: add imx_unregister_hw_clocks
  clk: imx: clk-composite-8m: Switch to clk_hw based API
  clk: imx: clk-pll14xx: Switch to clk_hw based API
  clk: imx7up: Rename the clks to hws
  clk: imx: Rename the imx_clk_divider_gate to imply it's clk_hw based
  clk: imx: Rename the imx_clk_pfdv2 to imply it's clk_hw based
  clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based
  clk: imx: Rename sccg and frac pll register to suggest clk_hw
  clk: imx: imx7ulp composite: Rename to show is clk_hw based
  clk: imx: pllv2: Switch to clk_hw based API
  clk: imx: pllv1: Switch to clk_hw based API
  ...

* clk-ti:
  clk: ti: clkctrl: Fix hidden dependency to node name
  clk: ti: add clkctrl data dra7 sgx
  clk: ti: omap5: Add missing AESS clock
  clk: ti: dra7: fix parent for gmac_clkctrl
  clk: ti: dra7: add vpe clkctrl data
  clk: ti: dra7: add cam clkctrl data
  dt-bindings: clock: Move ti-dra7-atl.h to dt-bindings/clock

* clk-xilinx:
  clk: zynqmp: Add support for clock with CLK_DIVIDER_POWER_OF_TWO flag
  clk: zynqmp: Fix divider calculation
  clk: zynqmp: Add support for get max divider
  clk: zynqmp: Warn user if clock user are more than allowed
  clk: zynqmp: Extend driver for versal
  dt-bindings: clock: Add bindings for versal clock driver

* clk-nvidia:
  clk: tegra20/30: Explicitly set parent clock for Video Decoder
  clk: tegra20/30: Don't pre-initialize displays parent clock
  clk: tegra: divider: Check UART's divider enable-bit state on rate's recalculation
  clk: tegra: clk-dfll: Remove call to pm_runtime_irq_safe()
  clk: tegra: Mark fuse clock as critical

* clk-qcom: (35 commits)
  clk: qcom: rpmh: Sort OF match table
  dt-bindings: fix warnings in validation of qcom,gcc.yaml
  dt-binding: fix compilation error of the example in qcom,gcc.yaml
  clk: qcom: Add ipq6018 Global Clock Controller support
  clk: qcom: Add DT bindings for ipq6018 gcc clock controller
  clk: qcom: gcc-msm8996: Fix parent for CLKREF clocks
  clk: qcom: rpmh: Add IPA clock for SC7180
  clk: qcom: rpmh: skip undefined clocks when registering
  clk: qcom: Add video clock controller driver for SC7180
  dt-bindings: clock: Introduce SC7180 QCOM Video clock bindings
  dt-bindings: clock: Add YAML schemas for the QCOM VIDEOCC clock bindings
  clk: qcom: Add graphics clock controller driver for SC7180
  dt-bindings: clock: Introduce SC7180 QCOM Graphics clock bindings
  dt-bindings: clock: Add YAML schemas for the QCOM GPUCC clock bindings
  clk: qcom: apcs-msm8916: use clk_parent_data to specify the parent
  clk: qcom: Add display clock controller driver for SC7180
  dt-bindings: clock: Introduce QCOM sc7180 display clock bindings
  dt-bindings: clock: Add YAML schemas for the QCOM DISPCC clock bindings
  clk: qcom: clk-alpha-pll: Add support for Fabia PLL calibration
  clk: qcom: alpha-pll: Remove useless read from set rate
  ...

* clk-freescale:
  clk: fsl-sai: new driver
  dt-bindings: clock: document the fsl-sai driver
  clk: composite: add _register_composite_pdata() variants

* clk-qoriq:
  clk: qoriq: add ls1088a hwaccel clocks support
  clk: ls1028a: Add clock driver for Display output interface
  dt/bindings: clk: Add YAML schemas for LS1028A Display Clock bindings
2020-01-31 13:14:26 -08:00
Stephen Boyd
6e7a9f0c4e Merge branches 'clk-debugfs-danger', 'clk-basic-hw', 'clk-renesas', 'clk-amlogic' and 'clk-allwinner' into clk-next
- Support dangerous debugfs actions on clks with dead code
 - Convert gpio, fixed-factor, mux, gate, divider basic clks to hw based APIs

* clk-debugfs-danger:
  clk: Add support for setting clk_rate via debugfs

* clk-basic-hw:
  clk: divider: Add support for specifying parents via DT/pointers
  clk: gate: Add support for specifying parents via DT/pointers
  clk: mux: Add support for specifying parents via DT/pointers
  clk: asm9260: Use parent accuracy in fixed rate clk
  clk: fixed-rate: Document that accuracy isn't a rate
  clk: fixed-rate: Add clk flags for parent accuracy
  clk: fixed-rate: Add support for specifying parents via DT/pointers
  clk: fixed-rate: Document accuracy member
  clk: fixed-rate: Move to_clk_fixed_rate() to C file
  clk: fixed-rate: Remove clk_register_fixed_rate_with_accuracy()
  clk: fixed-rate: Convert to clk_hw based APIs
  clk: gpio: Use DT way of specifying parents

* clk-renesas:
  clk: renesas: Prepare for split of R-Car H3 config symbol
  dt-bindings: clock: renesas: cpg-mssr: Fix r8a774b1 typo
  clk: renesas: r7s9210: Add SPIBSC clock
  clk: renesas: rcar-gen3: Allow changing the RPC[D2] clocks
  clk: renesas: Remove use of ARCH_R8A7796
  clk: renesas: rcar-gen2: Change multipliers and dividers to u8

* clk-amlogic:
  clk: clarify that clk_set_rate() does updates from top to bottom
  clk: meson: meson8b: make the CCF use the glitch-free mali mux
  clk: meson: pll: Fix by 0 division in __pll_params_to_rate()
  clk: meson: g12a: fix missing uart2 in regmap table
  clk: meson: meson8b: use of_clk_hw_register to register the clocks
  clk: meson: meson8b: don't register the XTAL clock when provided via OF
  clk: meson: meson8b: change references to the XTAL clock to use [fw_]name
  clk: meson: meson8b: use clk_hw_set_parent in the CPU clock notifier
  clk: meson: add a driver for the Meson8/8b/8m2 DDR clock controller
  dt-bindings: clock: meson8b: add the clock inputs
  dt-bindings: clock: add the Amlogic Meson8 DDR clock controller binding

* clk-allwinner:
  clk: sunxi: a23/a33: Export the MIPI PLL
  clk: sunxi: a31: Export the MIPI PLL
  clk: sunxi-ng: a64: export CLK_CPUX clock for DVFS
  clk: sunxi-ng: add mux and pll notifiers for A64 CPU clock
  clk: sunxi-ng: r40: Export MBUS clock
  clk: sunxi: use of_device_get_match_data
2020-01-31 13:12:14 -08:00
Linus Torvalds
7eec11d3a7 Merge branch 'akpm' (patches from Andrew)
Pull updates from Andrew Morton:
 "Most of -mm and quite a number of other subsystems: hotfixes, scripts,
  ocfs2, misc, lib, binfmt, init, reiserfs, exec, dma-mapping, kcov.

  MM is fairly quiet this time.  Holidays, I assume"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
  kcov: ignore fault-inject and stacktrace
  include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in io_mapping_map_atomic_wc()
  execve: warn if process starts with executable stack
  reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
  init/main.c: fix misleading "This architecture does not have kernel memory protection" message
  init/main.c: fix quoted value handling in unknown_bootoption
  init/main.c: remove unnecessary repair_env_string in do_initcall_level
  init/main.c: log arguments and environment passed to init
  fs/binfmt_elf.c: coredump: allow process with empty address space to coredump
  fs/binfmt_elf.c: coredump: delete duplicated overflow check
  fs/binfmt_elf.c: coredump: allocate core ELF header on stack
  fs/binfmt_elf.c: make BAD_ADDR() unlikely
  fs/binfmt_elf.c: better codegen around current->mm
  fs/binfmt_elf.c: don't copy ELF header around
  fs/binfmt_elf.c: fix ->start_code calculation
  fs/binfmt_elf.c: smaller code generation around auxv vector fill
  lib/find_bit.c: uninline helper _find_next_bit()
  lib/find_bit.c: join _find_next_bit{_le}
  uapi: rename ext2_swab() to swab() and share globally in swab.h
  lib/scatterlist.c: adjust indentation in __sg_alloc_table
  ...
2020-01-31 12:16:36 -08:00
Linus Torvalds
c5951e7c8e The main MIPS changes for 5.6:
- Support mremap() for the VDSO, primarily to allow CRIU to restore the
   VDSO to its checkpointed location.
 
 - Restore the MIPS32 cBPF JIT, after having reverted the enablement of
   the eBPF JIT for MIPS32 systems in the 5.5 cycle.
 
 - Improve cop0 counter synchronization behaviour whilst onlining CPUs by
   running with interrupts disabled.
 
 - Better match FPU behaviour when emulating multiply-accumulate
   instructions on pre-r6 systems that implement IEEE754-2008 style MACs.
 
 - Loongson64 kernels now build using the MIPS64r2 ISA, allowing them to
   take advantage of instructions introduced by r2.
 
 - Support for the Ingenic X1000 SoC & the really nice little CU Neo
   development board that's using it.
 
 - Support for WMAC on GARDENA Smart Gateway devices.
 
 - Lots of cleanup & refactoring of SGI IP27 (Origin 2*) support in
   preparation for introducing IP35 (Origin 3*) support.
 
 - Various Kconfig & Makefile cleanups.
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Merge tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS changes from Paul Burton:
 "Nothing too big or scary in here:

   - Support mremap() for the VDSO, primarily to allow CRIU to restore
     the VDSO to its checkpointed location.

   - Restore the MIPS32 cBPF JIT, after having reverted the enablement
     of the eBPF JIT for MIPS32 systems in the 5.5 cycle.

   - Improve cop0 counter synchronization behaviour whilst onlining CPUs
     by running with interrupts disabled.

   - Better match FPU behaviour when emulating multiply-accumulate
     instructions on pre-r6 systems that implement IEEE754-2008 style
     MACs.

   - Loongson64 kernels now build using the MIPS64r2 ISA, allowing them
     to take advantage of instructions introduced by r2.

   - Support for the Ingenic X1000 SoC & the really nice little CU Neo
     development board that's using it.

   - Support for WMAC on GARDENA Smart Gateway devices.

   - Lots of cleanup & refactoring of SGI IP27 (Origin 2*) support in
     preparation for introducing IP35 (Origin 3*) support.

   - Various Kconfig & Makefile cleanups"

* tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (60 commits)
  MIPS: PCI: Add detection of IOC3 on IO7, IO8, IO9 and Fuel
  MIPS: Loongson64: Disable exec hazard
  MIPS: Loongson64: Bump ISA level to MIPSR2
  MIPS: Make DIEI support as a config option
  MIPS: OCTEON: octeon-irq: fix spelling mistake "to" -> "too"
  MIPS: asm: local: add barriers for Loongson
  MIPS: Loongson64: Select mac2008 only feature
  MIPS: Add MAC2008 Support
  Revert "MIPS: Add custom serial.h with BASE_BAUD override for generic kernel"
  MIPS: sort MIPS and MIPS_GENERIC Kconfig selects alphabetically (again)
  MIPS: make CPU_HAS_LOAD_STORE_LR opt-out
  MIPS: generic: don't unconditionally select PINCTRL
  MIPS: don't explicitly select LIBFDT in Kconfig
  MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts
  MIPS: SGI-IP30: Check for valid pointer before using it
  MIPS: syscalls: fix indentation of the 'SYSNR' message
  MIPS: boot: fix typo in 'vmlinux.lzma.its' target
  MIPS: fix indentation of the 'RELOCS' message
  dt-bindings: Document loongson vendor-prefix
  MIPS: CU1000-Neo: Refresh defconfig to support HWMON and WiFi.
  ...
2020-01-31 11:28:31 -08:00
Linus Torvalds
b7e573bb4a ARC updates for 5.6-rc1
- Wiring up clone3 syscall
 
  - ARCv2 FPU state save/restore across context switch
 
  - AXS10x platform and miscll fixes
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Merge tag 'arc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC updates from Vineet Gupta:

 - Wire up clone3 syscall

 - ARCv2 FPU state save/restore across context switch

 - AXS10x platform and misc fixes

* tag 'arc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARCv2: fpu: preserve userspace fpu state
  ARC: fpu: declutter code, move bits out into fpu.h
  ARC: wireup clone3 syscall
  ARC: [plat-axs10x]: Add missing multicast filter number to GMAC node
  ARC: update feature support for jump-labels
2020-01-31 11:26:11 -08:00
Linus Torvalds
a1084542a8 RISC-V Patches for the 5.6 Merge Window, Part 1
This tag contains a handful of patches that I'd like to target for this merge
 window:
 
 * Support for kasan.
 * 32-bit physical addresses on rv32i-based systems.
 * Support for CONFIG_DEBUG_VIRTUAL
 * DT entry for the FU540 GPIO controller, which has recently had a device
   driver merged.
 
 These boot a buildroot-based system on QEMU's virt board for me.
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Merge tag 'riscv-for-linus-5.6-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:
 "This contains a handful of patches for this merge window:

   - Support for kasan

   - 32-bit physical addresses on rv32i-based systems

   - Support for CONFIG_DEBUG_VIRTUAL

   - DT entry for the FU540 GPIO controller, which has recently had a
     device driver merged

  These boot a buildroot-based system on QEMU's virt board for me"

* tag 'riscv-for-linus-5.6-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: dts: Add DT support for SiFive FU540 GPIO driver
  riscv: mm: add support for CONFIG_DEBUG_VIRTUAL
  riscv: keep 32-bit kernel to 32-bit phys_addr_t
  kasan: Add riscv to KASAN documentation.
  riscv: Add KASAN support
  kasan: No KASAN's memmove check if archs don't have it.
2020-01-31 11:23:29 -08:00
Matteo Croce
78e06cf430 netfilter: nf_flowtable: fix documentation
In the flowtable documentation there is a missing semicolon, the command
as is would give this error:

    nftables.conf:5:27-33: Error: syntax error, unexpected devices, expecting newline or semicolon
                    hook ingress priority 0 devices = { br0, pppoe-data };
                                            ^^^^^^^
    nftables.conf:4:12-13: Error: invalid hook (null)
            flowtable ft {
                      ^^

Fixes: 19b351f16f ("netfilter: add flowtable documentation")
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-01-31 19:31:42 +01:00
Mikhail Zaslonko
c65e6815db s390/boot: add dfltcc= kernel command line parameter
Add the new kernel command line parameter 'dfltcc=' to configure s390
zlib hardware support.

Format: { on | off | def_only | inf_only | always }
 on:       s390 zlib hardware support for compression on
           level 1 and decompression (default)
 off:      No s390 zlib hardware support
 def_only: s390 zlib hardware support for deflate
           only (compression on level 1)
 inf_only: s390 zlib hardware support for inflate
           only (decompression)
 always:   Same as 'on' but ignores the selected compression
           level always using hardware support (used for debugging)

Link: http://lkml.kernel.org/r/20200103223334.20669-5-zaslonko@linux.ibm.com
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Cc: Chris Mason <clm@fb.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David Sterba <dsterba@suse.com>
Cc: Eduard Shishkin <edward6@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31 10:30:40 -08:00
Vitaly Wool
45190f01dd mm/zswap.c: add allocation hysteresis if pool limit is hit
zswap will always try to shrink pool when zswap is full.  If there is a
high pressure on zswap it will result in flipping pages in and out zswap
pool without any real benefit, and the overall system performance will
drop.  The previous discussion on this subject [1] ended up with a
suggestion to implement a sort of hysteresis to refuse taking pages into
zswap pool until it has sufficient space if the limit has been hit.
This is my take on this.

Hysteresis is controlled with a sysfs-configurable parameter (namely,
/sys/kernel/debug/zswap/accept_threhsold_percent).  It specifies the
threshold at which zswap would start accepting pages again after it
became full.  Setting this parameter to 100 disables the hysteresis and
sets the zswap behavior to pre-hysteresis state.

[1] https://lkml.org/lkml/2019/11/8/949

Link: http://lkml.kernel.org/r/20200108200118.15563-1-vitaly.wool@konsulko.com
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31 10:30:39 -08:00
John Hubbard
f1f6a7dd9b mm, tree-wide: rename put_user_page*() to unpin_user_page*()
In order to provide a clearer, more symmetric API for pinning and
unpinning DMA pages.  This way, pin_user_pages*() calls match up with
unpin_user_pages*() calls, and the API is a lot closer to being
self-explanatory.

Link: http://lkml.kernel.org/r/20200107224558.2362728-23-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Björn Töpel <bjorn.topel@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31 10:30:38 -08:00
John Hubbard
eddb1c228f mm/gup: introduce pin_user_pages*() and FOLL_PIN
Introduce pin_user_pages*() variations of get_user_pages*() calls, and
also pin_longterm_pages*() variations.

For now, these are placeholder calls, until the various call sites are
converted to use the correct get_user_pages*() or pin_user_pages*() API.

These variants will eventually all set FOLL_PIN, which is also
introduced, and thoroughly documented.

    pin_user_pages()
    pin_user_pages_remote()
    pin_user_pages_fast()

All pages that are pinned via the above calls, must be unpinned via
put_user_page().

The underlying rules are:

* FOLL_PIN is a gup-internal flag, so the call sites should not directly
  set it.  That behavior is enforced with assertions.

* Call sites that want to indicate that they are going to do DirectIO
  ("DIO") or something with similar characteristics, should call a
  get_user_pages()-like wrapper call that sets FOLL_PIN.  These wrappers
  will:

    * Start with "pin_user_pages" instead of "get_user_pages".  That
      makes it easy to find and audit the call sites.

    * Set FOLL_PIN

* For pages that are received via FOLL_PIN, those pages must be returned
  via put_user_page().

Thanks to Jan Kara and Vlastimil Babka for explaining the 4 cases in
this documentation.  (I've reworded it and expanded upon it.)

Link: http://lkml.kernel.org/r/20200107224558.2362728-12-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>		[Documentation]
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Björn Töpel <bjorn.topel@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31 10:30:37 -08:00
Linus Torvalds
e813e65038 ARM: Cleanups and corner case fixes
PPC: Bugfixes
 
 x86:
 * Support for mapping DAX areas with large nested page table entries.
 * Cleanups and bugfixes here too.  A particularly important one is
 a fix for FPU load when the thread has TIF_NEED_FPU_LOAD.  There is
 also a race condition which could be used in guest userspace to exploit
 the guest kernel, for which the embargo expired today.
 * Fast path for IPI delivery vmexits, shaving about 200 clock cycles
 from IPI latency.
 * Protect against "Spectre-v1/L1TF" (bring data in the cache via
 speculative out of bound accesses, use L1TF on the sibling hyperthread
 to read it), which unfortunately is an even bigger whack-a-mole game
 than SpectreV1.
 
 Sean continues his mission to rewrite KVM.  In addition to a sizable
 number of x86 patches, this time he contributed a pretty large refactoring
 of vCPU creation that affects all architectures but should not have any
 visible effect.
 
 s390 will come next week together with some more x86 patches.
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Merge tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "This is the first batch of KVM changes.

  ARM:
   - cleanups and corner case fixes.

  PPC:
   - Bugfixes

  x86:
   - Support for mapping DAX areas with large nested page table entries.

   - Cleanups and bugfixes here too. A particularly important one is a
     fix for FPU load when the thread has TIF_NEED_FPU_LOAD. There is
     also a race condition which could be used in guest userspace to
     exploit the guest kernel, for which the embargo expired today.

   - Fast path for IPI delivery vmexits, shaving about 200 clock cycles
     from IPI latency.

   - Protect against "Spectre-v1/L1TF" (bring data in the cache via
     speculative out of bound accesses, use L1TF on the sibling
     hyperthread to read it), which unfortunately is an even bigger
     whack-a-mole game than SpectreV1.

  Sean continues his mission to rewrite KVM. In addition to a sizable
  number of x86 patches, this time he contributed a pretty large
  refactoring of vCPU creation that affects all architectures but should
  not have any visible effect.

  s390 will come next week together with some more x86 patches"

* tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
  x86/KVM: Clean up host's steal time structure
  x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed
  x86/kvm: Cache gfn to pfn translation
  x86/kvm: Introduce kvm_(un)map_gfn()
  x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
  KVM: PPC: Book3S PR: Fix -Werror=return-type build failure
  KVM: PPC: Book3S HV: Release lock on page-out failure path
  KVM: arm64: Treat emulated TVAL TimerValue as a signed 32-bit integer
  KVM: arm64: pmu: Only handle supported event counters
  KVM: arm64: pmu: Fix chained SW_INCR counters
  KVM: arm64: pmu: Don't mark a counter as chained if the odd one is disabled
  KVM: arm64: pmu: Don't increment SW_INCR if PMCR.E is unset
  KVM: x86: Use a typedef for fastop functions
  KVM: X86: Add 'else' to unify fastop and execute call path
  KVM: x86: inline memslot_valid_for_gpte
  KVM: x86/mmu: Use huge pages for DAX-backed files
  KVM: x86/mmu: Remove lpage_is_disallowed() check from set_spte()
  KVM: x86/mmu: Fold max_mapping_level() into kvm_mmu_hugepage_adjust()
  KVM: x86/mmu: Zap any compound page when collapsing sptes
  KVM: x86/mmu: Remove obsolete gfn restoration in FNAME(fetch)
  ...
2020-01-31 09:30:41 -08:00
Janosch Frank
7de3f1423f KVM: s390: Add new reset vcpu API
The architecture states that we need to reset local IRQs for all CPU
resets. Because the old reset interface did not support the normal CPU
reset we never did that on a normal reset.

Let's implement an interface for the missing normal and clear resets
and reset all local IRQs, registers and control structures as stated
in the architecture.

Userspace might already reset the registers via the vcpu run struct,
but as we need the interface for the interrupt clearing part anyway,
we implement the resets fully and don't rely on userspace to reset the
rest.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/20200131100205.74720-4-frankja@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2020-01-31 12:50:04 +01:00
Randy Dunlap
fe27f13d67 Documentation: cpu-idle-cooling: fix a SEVERE docs build failure
Sphinx ('make htmldocs') stops with a SEVERE error:

Sphinx parallel build error:
SystemMessage: /home/rdunlap/lnx/next/linux-next-20200120/Documentation/driver-api/thermal/cpu-idle-cooling.rst:69: (SEVERE/4) Unexpected section title.

^
|

so fix the .rst file so that the SEVERE build error does not happen.
Also fix another minor formatting warning (unexpected unindent).

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Amit Kucheria <amit.kucheria@verdurent.com>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/712c1152-56b5-307f-b3f3-ed03a30b804a@infradead.org
2020-01-31 10:50:33 +01:00
Wen He
87a5ffb34b dt/bindings: clk: Add YAML schemas for LS1028A Display Clock bindings
LS1028A has a clock domain PXLCLK0 used for provide pixel clocks to Display
output interface. Add a YAML schema for this.

Signed-off-by: Wen He <wen.he_1@nxp.com>
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lkml.kernel.org/r/20191213083402.35678-1-wen.he_1@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-01-30 16:28:06 -08:00
Linus Torvalds
ccaaaf6fe5 MPX requires recompiling applications, which requires compiler support.
Unfortunately, GCC 9.1 is expected to be be released without support for
 MPX.  This means that there was only a relatively small window where
 folks could have ever used MPX.  It failed to gain wide adoption in the
 industry, and Linux was the only mainstream OS to ever support it widely.
 
 Support for the feature may also disappear on future processors.
 
 This set completes the process that we started during the 5.4 merge window.
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Merge tag 'mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/daveh/x86-mpx

Pull x86 MPX removal from Dave Hansen:
 "MPX requires recompiling applications, which requires compiler
  support. Unfortunately, GCC 9.1 is expected to be be released without
  support for MPX. This means that there was only a relatively small
  window where folks could have ever used MPX. It failed to gain wide
  adoption in the industry, and Linux was the only mainstream OS to ever
  support it widely.

  Support for the feature may also disappear on future processors.

  This set completes the process that we started during the 5.4 merge
  window when the MPX prctl()s were removed. XSAVE support is left in
  place, which allows MPX-using KVM guests to continue to function"

* tag 'mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/daveh/x86-mpx:
  x86/mpx: remove MPX from arch/x86
  mm: remove arch_bprm_mm_init() hook
  x86/mpx: remove bounds exception code
  x86/mpx: remove build infrastructure
  x86/alternatives: add missing insn.h include
2020-01-30 16:11:50 -08:00
Linus Torvalds
35c222fd32 MTD core
* block2mtd: page index should use pgoff_t
 * maps: physmap: minimal Runtime PM support
 * maps: pcmciamtd: avoid possible sleep-in-atomic-context bugs
 * concat: Fix a comment referring to an unknown symbol
 
 Raw NAND
 * Macronix: Use match_string() helper
 * Atmel: switch to using devm_fwnode_gpiod_get()
 * Denali: rework the SKIP_BYTES feature and add reset controlling
 * Brcmnand: set appropriate DMA mask
 * Cadence: add unspecified HAS_IOMEM dependency
 * Various cleanup.
 
 Onenand
 * Rename Samsung and Omap2 drivers to avoid possible build warnings
 * Enable compile testing
 * Various build issues
 * Kconfig cleanup
 
 SPI-NAND
 * Support for Toshiba TC58CVG2S0HRAIJ
 
 SPI-NOR:
 - Add support for TB selection using SR bit 6,
 - Add support for few flashes.
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Merge tag 'mtd/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
 "MTD core
   - block2mtd: page index should use pgoff_t
   - maps: physmap: minimal Runtime PM support
   - maps: pcmciamtd: avoid possible sleep-in-atomic-context bugs
   - concat: Fix a comment referring to an unknown symbol

  Raw NAND:
   - Macronix: Use match_string() helper
   - Atmel: switch to using devm_fwnode_gpiod_get()
   - Denali: rework the SKIP_BYTES feature and add reset controlling
   - Brcmnand: set appropriate DMA mask
   - Cadence: add unspecified HAS_IOMEM dependency
   - Various cleanup.

  Onenand:
   - Rename Samsung and Omap2 drivers to avoid possible build warnings
   - Enable compile testing
   - Various build issues
   - Kconfig cleanup

  SPI-NAND:
   - Support for Toshiba TC58CVG2S0HRAIJ

  SPI-NOR:
   - Add support for TB selection using SR bit 6,
   - Add support for few flashes"

* tag 'mtd/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (41 commits)
  mtd: concat: Fix a comment referring to an unknown symbol
  mtd: rawnand: add unspecified HAS_IOMEM dependency
  mtd: block2mtd: page index should use pgoff_t
  mtd: maps: physmap: Add minimal Runtime PM support
  mtd: maps: pcmciamtd: fix possible sleep-in-atomic-context bugs in pcmciamtd_set_vpp()
  mtd: onenand: Rename omap2 driver to avoid a build warning
  mtd: onenand: Use a better name for samsung driver
  mtd: rawnand: atmel: switch to using devm_fwnode_gpiod_get()
  mtd: spinand: add support for Toshiba TC58CVG2S0HRAIJ
  mtd: rawnand: macronix: Use match_string() helper to simplify the code
  mtd: sharpslpart: Fix unsigned comparison to zero
  mtd: onenand: Enable compile testing of OMAP and Samsung drivers
  mtd: onenand: samsung: Fix printing format for size_t on 64-bit
  mtd: onenand: samsung: Fix pointer cast -Wpointer-to-int-cast warnings on 64 bit
  mtd: rawnand: denali: remove hard-coded DENALI_DEFAULT_OOB_SKIP_BYTES
  mtd: rawnand: denali_dt: add reset controlling
  dt-bindings: mtd: denali_dt: document reset property
  mtd: rawnand: denali_dt: Add support for configuring SPARE_AREA_SKIP_BYTES
  mtd: rawnand: denali_dt: error out if platform has no associated data
  mtd: rawnand: brcmnand: Set appropriate DMA mask
  ...
2020-01-30 15:46:02 -08:00
Linus Torvalds
6e135baed8 f2fs-for-5.6
In this series, we've implemented transparent compression experimentally. It
 supports LZO and LZ4, but will add more later as we investigate in the field
 more. At this point, the feature doesn't expose compressed space to user
 directly in order to guarantee potential data updates later to the space.
 Instead, the main goal is to reduce data writes to flash disk as much as
 possible, resulting in extending disk life time as well as relaxing IO
 congestion. Alternatively, we're also considering to add ioctl() to reclaim
 compressed space and show it to user after putting the immutable bit.
 
 Enhancement:
  - add compression support
  - avoid unnecessary locks in quota ops
  - harden power-cut scenario for zoned block devices
  - use private bio_set to avoid IO congestion
  - replace GC mutex with rwsem to serialize callers
 
 Bug fix:
  - fix dentry consistency and memory corruption in rename()'s error case
  - fix wrong swap extent reports
  - fix casefolding bugs
  - change lock coverage to avoid deadlock
  - avoid GFP_KERNEL under f2fs_lock_op
 
 And, we've cleaned up sysfs entries to prepare no debugfs.
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Merge tag 'f2fs-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this series, we've implemented transparent compression
  experimentally. It supports LZO and LZ4, but will add more later as we
  investigate in the field more.

  At this point, the feature doesn't expose compressed space to user
  directly in order to guarantee potential data updates later to the
  space. Instead, the main goal is to reduce data writes to flash disk
  as much as possible, resulting in extending disk life time as well as
  relaxing IO congestion.

  Alternatively, we're also considering to add ioctl() to reclaim
  compressed space and show it to user after putting the immutable bit.

  Enhancements:
   - add compression support
   - avoid unnecessary locks in quota ops
   - harden power-cut scenario for zoned block devices
   - use private bio_set to avoid IO congestion
   - replace GC mutex with rwsem to serialize callers

  Bug fixes:
   - fix dentry consistency and memory corruption in rename()'s error case
   - fix wrong swap extent reports
   - fix casefolding bugs
   - change lock coverage to avoid deadlock
   - avoid GFP_KERNEL under f2fs_lock_op

  And, we've cleaned up sysfs entries to prepare no debugfs"

* tag 'f2fs-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (31 commits)
  f2fs: fix race conditions in ->d_compare() and ->d_hash()
  f2fs: fix dcache lookup of !casefolded directories
  f2fs: Add f2fs stats to sysfs
  f2fs: delete duplicate information on sysfs nodes
  f2fs: change to use rwsem for gc_mutex
  f2fs: update f2fs document regarding to fsync_mode
  f2fs: add a way to turn off ipu bio cache
  f2fs: code cleanup for f2fs_statfs_project()
  f2fs: fix miscounted block limit in f2fs_statfs_project()
  f2fs: show the CP_PAUSE reason in checkpoint traces
  f2fs: fix deadlock allocating bio_post_read_ctx from mempool
  f2fs: remove unneeded check for error allocating bio_post_read_ctx
  f2fs: convert inline_dir early before starting rename
  f2fs: fix memleak of kobject
  f2fs: fix to add swap extent correctly
  f2fs: run fsck when getting bad inode during GC
  f2fs: support data compression
  f2fs: free sysfs kobject
  f2fs: declare nested quota_sem and remove unnecessary sems
  f2fs: don't put new_page twice in f2fs_rename
  ...
2020-01-30 15:39:24 -08:00
Linus Torvalds
e5da4c933c This merge window, we've added some performance improvements in how we
handle inode locking in the read/write paths, and improving the
 performance of Direct I/O overwrites.  We also now record the error
 code which caused the first and most recent ext4_error() report in the
 superblock, to make it easier to root cause problems in production
 systems.  There are also many of the usual cleanups and miscellaneous
 bug fixes.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
 "This merge window, we've added some performance improvements in how we
  handle inode locking in the read/write paths, and improving the
  performance of Direct I/O overwrites.

  We also now record the error code which caused the first and most
  recent ext4_error() report in the superblock, to make it easier to
  root cause problems in production systems.

  There are also many of the usual cleanups and miscellaneous bug fixes"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (49 commits)
  jbd2: clean __jbd2_journal_abort_hard() and __journal_abort_soft()
  jbd2: make sure ESHUTDOWN to be recorded in the journal superblock
  ext4, jbd2: ensure panic when aborting with zero errno
  jbd2: switch to use jbd2_journal_abort() when failed to submit the commit record
  jbd2_seq_info_next should increase position index
  jbd2: remove pointless assertion in __journal_remove_journal_head
  ext4,jbd2: fix comment and code style
  jbd2: delete the duplicated words in the comments
  ext4: fix extent_status trace points
  ext4: fix symbolic enum printing in trace output
  ext4: choose hardlimit when softlimit is larger than hardlimit in ext4_statfs_project()
  ext4: fix race conditions in ->d_compare() and ->d_hash()
  ext4: make dioread_nolock the default
  ext4: fix extent_status fragmentation for plain files
  jbd2: clear JBD2_ABORT flag before journal_reset to update log tail info when load journal
  ext4: drop ext4_kvmalloc()
  ext4: Add EXT4_IOC_FSGETXATTR/EXT4_IOC_FSSETXATTR to compat_ioctl
  ext4: remove unused macro MPAGE_DA_EXTENT_TAIL
  ext4: add missing braces in ext4_ext_drop_refs()
  ext4: fix some nonstandard indentation in extents.c
  ...
2020-01-30 15:17:05 -08:00
Paolo Bonzini
4cbc418a44 Merge branch 'cve-2019-3016' into kvm-next-5.6
From Boris Ostrovsky:

The KVM hypervisor may provide a guest with ability to defer remote TLB
flush when the remote VCPU is not running. When this feature is used,
the TLB flush will happen only when the remote VPCU is scheduled to run
again. This will avoid unnecessary (and expensive) IPIs.

Under certain circumstances, when a guest initiates such deferred action,
the hypervisor may miss the request. It is also possible that the guest
may mistakenly assume that it has already marked remote VCPU as needing
a flush when in fact that request had already been processed by the
hypervisor. In both cases this will result in an invalid translation
being present in a vCPU, potentially allowing accesses to memory locations
in that guest's address space that should not be accessible.

Note that only intra-guest memory is vulnerable.

The five patches address both of these problems:
1. The first patch makes sure the hypervisor doesn't accidentally clear
a guest's remote flush request
2. The rest of the patches prevent the race between hypervisor
acknowledging a remote flush request and guest issuing a new one.

Conflicts:
	arch/x86/kvm/x86.c [move from kvm_arch_vcpu_free to kvm_arch_vcpu_destroy]
2020-01-30 18:47:59 +01:00
Paolo Bonzini
1d5920c306 Second KVM PPC update for 5.6
* Fix compile warning on 32-bit machines
 * Fix locking error in secure VM support
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Merge tag 'kvm-ppc-next-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD

Second KVM PPC update for 5.6

* Fix compile warning on 32-bit machines
* Fix locking error in secure VM support
2020-01-30 18:14:26 +01:00
Paolo Bonzini
621ab20c06 KVM/arm updates for Linux 5.6
- Fix MMIO sign extension
 - Fix HYP VA tagging on tag space exhaustion
 - Fix PSTATE/CPSR handling when generating exception
 - Fix MMU notifier's advertizing of young pages
 - Fix poisoned page handling
 - Fix PMU SW event handling
 - Fix TVAL register access
 - Fix AArch32 external abort injection
 - Fix ITS unmapped collection handling
 - Various cleanups
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Merge tag 'kvmarm-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm updates for Linux 5.6

- Fix MMIO sign extension
- Fix HYP VA tagging on tag space exhaustion
- Fix PSTATE/CPSR handling when generating exception
- Fix MMU notifier's advertizing of young pages
- Fix poisoned page handling
- Fix PMU SW event handling
- Fix TVAL register access
- Fix AArch32 external abort injection
- Fix ITS unmapped collection handling
- Various cleanups
2020-01-30 18:13:14 +01:00
Linus Torvalds
9f68e3655a drm pull for 5.6-rc1
uapi:
 - dma-buf heaps added (and fixed)
 - command line add support for panel oreientation
 - command line allow overriding penguin count
 
 drm:
 - mipi dsi definition updates
 - lockdep annotations for dma_resv
 - remove dma-buf kmap/kunmap support
 - constify fb_ops in all fbdev drivers
 - MST fix for daisy chained hotplug-
 - CTA-861-G modes with VIC >= 193 added
 - fix drm_panel_of_backlight export
 - LVDS decoder support
 - more device based logging support
 - scanline alighment for dumb buffers
 - MST DSC helpers
 
 scheduler:
 - documentation fixes
 - job distribution improvements
 
 panel:
 - Logic PD type 28 panel support
 - Jimax8729d MIPI-DSI
 - igenic JZ4770
 - generic DSI devicetree bindings
 - sony acx424AKP panel
 - Leadtek LTK500HD1829
 - xinpeng XPP055C272
 - AUO B116XAK01
 - GiantPlus GPM940B0
 - BOE NV140FHM-N49
 - Satoz SAT050AT40H12R2
 - Sharp LS020B1DD01D panels.
 
 ttm:
 - use blocking WW lock
 
 i915:
 - hw/uapi state separation
 - Lock annotation improvements
 - selftest improvements
 - ICL/TGL DSI VDSC support
 - VBT parsing improvments
 - Display refactoring
 - DSI updates + fixes
 - HDCP 2.2 for CFL
 - CML PCI ID fixes
 - GLK+ fbc fix
 - PSR fixes
 - GEN/GT refactor improvments
 - DP MST fixes
 - switch context id alloc to xarray
 - workaround updates
 - LMEM debugfs support
 - tiled monitor fixes
 - ICL+ clock gating programming removed
 - DP MST disable sequence fixed
 - LMEM discontiguous object maps
 - prefaulting for discontiguous objects
 - use LMEM for dumb buffers if possible
 - add LMEM mmap support
 
 amdgpu:
 - enable sync object timelines for vulkan
 - MST atomic routines
 - enable MST DSC support
 - add DMCUB display microengine support
 - DC OEM i2c support
 - Renoir DC fixes
 - Initial HDCP 2.x support
 - BACO support for Arcturus
 - Use BACO for runtime PM power save
 - gfxoff on navi10
 - gfx10 golden updates and fixes
 - DCN support on POWER
 - GFXOFF for raven1 refresh
 - MM engine idle handlers cleanup
 - 10bpc EDP panel fixes
 - renoir watermark fixes
 - SR-IOV fixes
 - Arcturus VCN fixes
 - GDDR6 training fixes
 - freesync fixes
 - Pollock support
 
 amdkfd:
 - unify more codepath with amdgpu
 - use KIQ to setup HIQ rather than MMIO
 
 radeon:
 - fix vma fault handler race
 - PPC DMA fix
 - register check fixes for r100/r200
 
 nouveau:
 - mmap_sem vs dma_resv fix
 - rewrite the ACR secure boot code for Turing
 - TU10x graphics engine support (TU11x pending)
 - Page kind mapping for turing
 - 10-bit LUT support
 - GP10B Tegra fixes
 - HD audio regression fix
 
 hisilicon/hibmc:
 - use generic fbdev code and helpers
 
 rockchip:
 - dsi/px30 support
 
 virtio:
 - fb damage support
 - static some functions
 
 vc4:
 - use dma_resv lock wrappers
 
 msm:
 - use dma_resv lock wrappers
 - sc7180 display + DSI support
 - a618 support
 - UBWC support improvements
 
 vmwgfx:
 - updates + new logging uapi
 
 exynos:
 - enable/disable callback cleanups
 
 etnaviv:
 - use dma_resv lock wrappers
 
 atmel-hlcdc:
 - clock fixes
 
 mediatek:
 - cmdq support
 - non-smooth cursor fixes
 - ctm property support
 
 sun4i:
 - suspend support
 - A64 mipi dsi support
 
 rcar-du:
 - Color management module support
 - LVDS encoder dual-link support
 - R8A77980 support
 
 analogic:
 - add support for an6345
 
 ast:
 - atomic modeset support
 - primary plane garbage fix
 
 arcgpu:
 - fixes for fourcc handling
 
 tegra:
 - minor fixes and improvments
 
 mcde:
 - vblank support
 
 meson:
 - OSD1 plane AFBC commit
 
 gma500:
 - add pageflip support
 - reomve global drm_dev
 
 komeda:
 - tweak debugfs output
 - d32 support
 - runtime PM suppotr
 
 udl:
 - use generic shmem helpers
 - cleanup and fixes
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Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Davbe Airlie:
 "This is the main pull request for graphics for 5.6. Usual selection of
  changes all over.

  I've got one outstanding vmwgfx pull that touches mm so kept it
  separate until after all of this lands. I'll try and get it to you
  soon after this, but it might be early next week (nothing wrong with
  code, just my schedule is messy)

  This also hits a lot of fbdev drivers with some cleanups.

  Other notables:
   - vulkan timeline semaphore support added to syncobjs
   - nouveau turing secureboot/graphics support
   - Displayport MST display stream compression support

  Detailed summary:

  uapi:
   - dma-buf heaps added (and fixed)
   - command line add support for panel oreientation
   - command line allow overriding penguin count

  drm:
   - mipi dsi definition updates
   - lockdep annotations for dma_resv
   - remove dma-buf kmap/kunmap support
   - constify fb_ops in all fbdev drivers
   - MST fix for daisy chained hotplug-
   - CTA-861-G modes with VIC >= 193 added
   - fix drm_panel_of_backlight export
   - LVDS decoder support
   - more device based logging support
   - scanline alighment for dumb buffers
   - MST DSC helpers

  scheduler:
   - documentation fixes
   - job distribution improvements

  panel:
   - Logic PD type 28 panel support
   - Jimax8729d MIPI-DSI
   - igenic JZ4770
   - generic DSI devicetree bindings
   - sony acx424AKP panel
   - Leadtek LTK500HD1829
   - xinpeng XPP055C272
   - AUO B116XAK01
   - GiantPlus GPM940B0
   - BOE NV140FHM-N49
   - Satoz SAT050AT40H12R2
   - Sharp LS020B1DD01D panels.

  ttm:
   - use blocking WW lock

  i915:
   - hw/uapi state separation
   - Lock annotation improvements
   - selftest improvements
   - ICL/TGL DSI VDSC support
   - VBT parsing improvments
   - Display refactoring
   - DSI updates + fixes
   - HDCP 2.2 for CFL
   - CML PCI ID fixes
   - GLK+ fbc fix
   - PSR fixes
   - GEN/GT refactor improvments
   - DP MST fixes
   - switch context id alloc to xarray
   - workaround updates
   - LMEM debugfs support
   - tiled monitor fixes
   - ICL+ clock gating programming removed
   - DP MST disable sequence fixed
   - LMEM discontiguous object maps
   - prefaulting for discontiguous objects
   - use LMEM for dumb buffers if possible
   - add LMEM mmap support

  amdgpu:
   - enable sync object timelines for vulkan
   - MST atomic routines
   - enable MST DSC support
   - add DMCUB display microengine support
   - DC OEM i2c support
   - Renoir DC fixes
   - Initial HDCP 2.x support
   - BACO support for Arcturus
   - Use BACO for runtime PM power save
   - gfxoff on navi10
   - gfx10 golden updates and fixes
   - DCN support on POWER
   - GFXOFF for raven1 refresh
   - MM engine idle handlers cleanup
   - 10bpc EDP panel fixes
   - renoir watermark fixes
   - SR-IOV fixes
   - Arcturus VCN fixes
   - GDDR6 training fixes
   - freesync fixes
   - Pollock support

  amdkfd:
   - unify more codepath with amdgpu
   - use KIQ to setup HIQ rather than MMIO

  radeon:
   - fix vma fault handler race
   - PPC DMA fix
   - register check fixes for r100/r200

  nouveau:
   - mmap_sem vs dma_resv fix
   - rewrite the ACR secure boot code for Turing
   - TU10x graphics engine support (TU11x pending)
   - Page kind mapping for turing
   - 10-bit LUT support
   - GP10B Tegra fixes
   - HD audio regression fix

  hisilicon/hibmc:
   - use generic fbdev code and helpers

  rockchip:
   - dsi/px30 support

  virtio:
   - fb damage support
   - static some functions

  vc4:
   - use dma_resv lock wrappers

  msm:
   - use dma_resv lock wrappers
   - sc7180 display + DSI support
   - a618 support
   - UBWC support improvements

  vmwgfx:
   - updates + new logging uapi

  exynos:
   - enable/disable callback cleanups

  etnaviv:
   - use dma_resv lock wrappers

  atmel-hlcdc:
   - clock fixes

  mediatek:
   - cmdq support
   - non-smooth cursor fixes
   - ctm property support

  sun4i:
   - suspend support
   - A64 mipi dsi support

  rcar-du:
   - Color management module support
   - LVDS encoder dual-link support
   - R8A77980 support

  analogic:
   - add support for an6345

  ast:
   - atomic modeset support
   - primary plane garbage fix

  arcgpu:
   - fixes for fourcc handling

  tegra:
   - minor fixes and improvments

  mcde:
   - vblank support

  meson:
   - OSD1 plane AFBC commit

  gma500:
   - add pageflip support
   - reomve global drm_dev

  komeda:
   - tweak debugfs output
   - d32 support
   - runtime PM suppotr

  udl:
   - use generic shmem helpers
   - cleanup and fixes"

* tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm: (1998 commits)
  drm/nouveau/fb/gp102-: allow module to load even when scrubber binary is missing
  drm/nouveau/acr: return error when registering LSF if ACR not supported
  drm/nouveau/disp/gv100-: not all channel types support reporting error codes
  drm/nouveau/disp/nv50-: prevent oops when no channel method map provided
  drm/nouveau: support synchronous pushbuf submission
  drm/nouveau: signal pending fences when channel has been killed
  drm/nouveau: reject attempts to submit to dead channels
  drm/nouveau: zero vma pointer even if we only unreference it rather than free
  drm/nouveau: Add HD-audio component notifier support
  drm/nouveau: fix build error without CONFIG_IOMMU_API
  drm/nouveau/kms/nv04: remove set but not used variable 'width'
  drm/nouveau/kms/nv50: remove set but not unused variable 'nv_connector'
  drm/nouveau/mmu: fix comptag memory leak
  drm/nouveau/gr/gp10b: Use gp100_grctx and gp100_gr_zbc
  drm/nouveau/pmu/gm20b,gp10b: Fix Falcon bootstrapping
  drm/exynos: Rename Exynos to lowercase
  drm/exynos: change callback names
  drm/mst: Don't do atomic checks over disabled managers
  drm/amdgpu: add the lost mutex_init back
  drm/amd/display: skip opp blank or unblank if test pattern enabled
  ...
2020-01-30 08:04:01 -08:00
Linus Torvalds
4cadc60d6b power supply and reset changes for the v5.6 series
Core:
  * Add battery internal resistance temperature table support
 
 Drivers:
  * sc27xx: Optimize the battery resistance with measuring temperature
  * max17042-battery: Add MAX17055 support
  * bq25890-charger: Add support of BQ25892 and BQ25896 chips
  * misc. fixes
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Merge tag 'for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Core:
   - Add battery internal resistance temperature table support

  Drivers:
   - sc27xx: Optimize the battery resistance with measuring temperature
   - max17042-battery: Add MAX17055 support
   - bq25890-charger: Add support of BQ25892 and BQ25896 chips
   - misc fixes"

* tag 'for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (44 commits)
  power: supply: ipaq_micro_battery: remove unneeded semicolon
  power: supply: bq25890_charger: fix incorrect error return when bq25890_field_read fails
  power: supply: axp20x_usb_power: Only poll while offline
  power: supply: axp20x_usb_power: Add wakeup control
  power: supply: axp20x_usb_power: Allow offlining
  power: supply: axp20x_usb_power: Use a match structure
  power: suppy: ucs1002: Make the symbol 'ucs1002_regulator_enable' static
  power: reset: at91-poweroff: use proper master clock register offset
  power: reset: at91-poweroff: introduce struct shdwc_reg_config
  power: supply: bq25890_charger: Add DT and I2C ids for all supported chips
  dt-bindings: Add new chips to bq25890 binding documentation
  power: supply: bq25890_charger: Add support of BQ25892 and BQ25896 chips
  power: supply: core: Update sysfs-class-power ABI document
  power: supply: sbs-battery: Fix a signedness bug in sbs_get_battery_capacity()
  power: supply: ltc2941-battery-gauge: fix use-after-free
  power: supply: max17040: Correct IRQ wake handling
  power: supply: axp20x_usb_power: Remove unused device_node
  power: supply: axp20x_ac_power: Add wakeup control
  power: supply: axp20x_ac_power: Allow offlining
  power: supply: axp20x_ac_power: Fix reporting online status
  ...
2020-01-30 07:51:24 -08:00
Linus Torvalds
893e591b59 Devicetree updates for v5.6:
- Update dtc to upstream v1.5.1-22-gc40aeb60b47a (plus 1 revert)
 
 - Fix for DMA coherent devices on Power
 
 - Rework and simplify the DT phandle cache code
 
 - DT schema conversions for LEDS, gpio-leds, STM32 dfsdm, STM32 UART,
   STM32 ROMEM, STM32 watchdog, STM32 DMAs, STM32 mlahb, STM32 RTC,
   STM32 RCC, STM32 syscon, rs485, Renesas rCar CSI2, Faraday FTIDE010,
   DWC2, Arm idle-states, Allwinner legacy resets, PRCM and clocks,
   Allwinner H6 OPP, Allwinner AHCI, Allwinner MBUS, Allwinner A31 CSI,
   Allwinner h/w codec, Allwinner A10 system ctrl, Allwinner SRAM,
   Allwinner USB PHY, Renesas CEU, generic PCI host, Arm Versatile PCI
 
 - New binding schemas for SATA and PATA controllers, TI and Infineon VR
   controllers, MAX31730
 
 - New compatible strings for i.MX8QM, WCN3991, renesas,r8a77961-wdt,
   renesas,etheravb-r8a77961
 
 - Add USB 'super-speed-plus' as a documented speed
 
 - Vendor prefixes for broadmobi, calaosystems, kam, and mps
 
 - Clean-up the multiple flavors of ST-Ericsson vendor prefixes
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Merge tag 'devicetree-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:

 - Update dtc to upstream v1.5.1-22-gc40aeb60b47a (plus 1 revert)

 - Fix for DMA coherent devices on Power

 - Rework and simplify the DT phandle cache code

 - DT schema conversions for LEDS, gpio-leds, STM32 dfsdm, STM32 UART,
   STM32 ROMEM, STM32 watchdog, STM32 DMAs, STM32 mlahb, STM32 RTC,
   STM32 RCC, STM32 syscon, rs485, Renesas rCar CSI2, Faraday FTIDE010,
   DWC2, Arm idle-states, Allwinner legacy resets, PRCM and clocks,
   Allwinner H6 OPP, Allwinner AHCI, Allwinner MBUS, Allwinner A31 CSI,
   Allwinner h/w codec, Allwinner A10 system ctrl, Allwinner SRAM,
   Allwinner USB PHY, Renesas CEU, generic PCI host, Arm Versatile PCI

 - New binding schemas for SATA and PATA controllers, TI and Infineon VR
   controllers, MAX31730

 - New compatible strings for i.MX8QM, WCN3991, renesas,r8a77961-wdt,
   renesas,etheravb-r8a77961

 - Add USB 'super-speed-plus' as a documented speed

 - Vendor prefixes for broadmobi, calaosystems, kam, and mps

 - Clean-up the multiple flavors of ST-Ericsson vendor prefixes

* tag 'devicetree-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (66 commits)
  scripts/dtc: Revert "yamltree: Ensure consistent bracketing of properties with phandles"
  of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc
  dt-bindings: leds: Convert gpio-leds to DT schema
  dt-bindings: leds: Convert common LED binding to schema
  dt-bindings: PCI: Convert generic host binding to DT schema
  dt-bindings: PCI: Convert Arm Versatile binding to DT schema
  dt-bindings: Be explicit about installing deps
  dt-bindings: stm32: convert dfsdm to json-schema
  dt-bindings: serial: Convert STM32 UART to json-schema
  dt-bindings: serial: Convert rs485 bindings to json-schema
  dt-bindings: timer: Use non-empty ranges in example
  dt-bindings: arm-boards: typo fix
  dt-bindings: Add TI and Infineon VR Controllers as trivial devices
  dt-binding: usb: add "super-speed-plus"
  dt-bindings: rcar-csi2: Convert bindings to json-schema
  dt-bindings: iio: adc: ad7606: Fix wrong maxItems value
  dt-bindings: Convert Faraday FTIDE010 to DT schema
  dt-bindings: Create DT bindings for PATA controllers
  dt-bindings: Create DT bindings for SATA controllers
  dt: bindings: add vendor prefix for Kamstrup A/S
  ...
2020-01-30 07:47:58 -08:00
Tom Zanussi
34ed63573b tracing: Documentation for in-kernel synthetic event API
Add Documentation for creating and generating synthetic events from
modules.

Link: http://lkml.kernel.org/r/734bf8789ff8700000c9acde61a553427910ddb5.1580323897.git.zanussi@kernel.org

Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-01-30 09:46:29 -05:00
Sven Schnelle
657480d9c0 s390: support KPROBES_ON_FTRACE
Instead of using our own kprobes-on-ftrace handling convert the
code to support KPROBES_ON_FTRACE.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-01-30 13:07:55 +01:00
Linus Torvalds
39bed42de2 hmm related patches for 5.6
This small series revises the names in mmu_notifier to make the code
 clearer and more readable.
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Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull mmu_notifier updates from Jason Gunthorpe:
 "This small series revises the names in mmu_notifier to make the code
  clearer and more readable"

* tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  mm/mmu_notifiers: Use 'interval_sub' as the variable for mmu_interval_notifier
  mm/mmu_notifiers: Use 'subscription' as the variable name for mmu_notifier
  mm/mmu_notifier: Rename struct mmu_notifier_mm to mmu_notifier_subscriptions
2020-01-29 19:56:50 -08:00
Linus Torvalds
33c84e89ab SCSI misc on 20200129
This series is slightly unusual because it includes Arnd's compat
 ioctl tree here:
 
 1c46a2cf2d Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue
 
 Excluding Arnd's changes, this is mostly an update of the usual
 drivers: megaraid_sas, mpt3sas, qla2xxx, ufs, lpfc, hisi_sas.  There
 are a couple of core and base updates around error propagation and
 atomicity in the attribute container base we use for the SCSI
 transport classes.  The rest is minor changes and updates.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This series is slightly unusual because it includes Arnd's compat
  ioctl tree here:

    1c46a2cf2d Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue

  Excluding Arnd's changes, this is mostly an update of the usual
  drivers: megaraid_sas, mpt3sas, qla2xxx, ufs, lpfc, hisi_sas.

  There are a couple of core and base updates around error propagation
  and atomicity in the attribute container base we use for the SCSI
  transport classes.

  The rest is minor changes and updates"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (149 commits)
  scsi: hisi_sas: Rename hisi_sas_cq.pci_irq_mask
  scsi: hisi_sas: Add prints for v3 hw interrupt converge and automatic affinity
  scsi: hisi_sas: Modify the file permissions of trigger_dump to write only
  scsi: hisi_sas: Replace magic number when handle channel interrupt
  scsi: hisi_sas: replace spin_lock_irqsave/spin_unlock_restore with spin_lock/spin_unlock
  scsi: hisi_sas: use threaded irq to process CQ interrupts
  scsi: ufs: Use UFS device indicated maximum LU number
  scsi: ufs: Add max_lu_supported in struct ufs_dev_info
  scsi: ufs: Delete is_init_prefetch from struct ufs_hba
  scsi: ufs: Inline two functions into their callers
  scsi: ufs: Move ufshcd_get_max_pwr_mode() to ufshcd_device_params_init()
  scsi: ufs: Split ufshcd_probe_hba() based on its called flow
  scsi: ufs: Delete struct ufs_dev_desc
  scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails
  scsi: ufs-mediatek: enable low-power mode for hibern8 state
  scsi: ufs: export some functions for vendor usage
  scsi: ufs-mediatek: add dbg_register_dump implementation
  scsi: qla2xxx: Fix a NULL pointer dereference in an error path
  scsi: qla1280: Make checking for 64bit support consistent
  scsi: megaraid_sas: Update driver version to 07.713.01.00-rc1
  ...
2020-01-29 18:16:16 -08:00
Linus Torvalds
e9f8ca0ae7 - Fix DM core's potential for q->make_request_fn NULL pointer in the
unlikely case that a DM device is created without a DM table and
   then accessed due to upper-layer userspace code or user error.
 
 - Fix DM thin-provisioning's metadata_pre_commit_callback to not use
   memory after it is free'd.  Also refactor code to disallow changing
   the thin-pool's data device once in use -- doing so guarantees smae
   lifetime of pool's data device relative to the pool metadata.
 
 - Fix DM space maps used by DM thinp and DM cache to avoid reuse of a
   already used block. This race was identified with extremely heavy
   snapshot use in the context of DM thin provisioning.
 
 - Fix DM raid's table status relative to an active rebuild.
 
 - Fix DM crypt to use GFP_NOIO rather than GFP_NOFS in call to
   skcipher_request_alloc(). Also fix benbi IV constructor crash if
   used in authenticated mode.
 
 - Add DM crypt support for Elephant diffuser to allow for Bitlocker
   compatibility.
 
 - Fix DM verity target to not prefetch hash blocks for data that has
   already been verified.
 
 - Fix DM writecache's incorrect flush sequence during commit when in
   SSD mode.
 
 - Improve DM writecache's sequential write performance on SSDs.
 
 - Add DM zoned target support for zone sizes smaller than 128MiB.
 
 - Add DM multipath 'queue_if_no_path_timeout_secs' module param to
   allow timeout if path isn't reinstated. This allows users a kernel
   safety-net against IO hanging indefinitely, due to no active paths,
   that has historically only been provided by multipathd userspace.
 
 - Various DM code cleanups to use true/false rather than 1/0, a
   variable rename in dm-dust, and fix for a math error in comment for
   DM thin metadata's ondisk format.
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Merge tag 'for-5.6/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - Fix DM core's potential for q->make_request_fn NULL pointer in the
   unlikely case that a DM device is created without a DM table and then
   accessed due to upper-layer userspace code or user error.

 - Fix DM thin-provisioning's metadata_pre_commit_callback to not use
   memory after it is free'd. Also refactor code to disallow changing
   the thin-pool's data device once in use -- doing so guarantees smae
   lifetime of pool's data device relative to the pool metadata.

 - Fix DM space maps used by DM thinp and DM cache to avoid reuse of a
   already used block. This race was identified with extremely heavy
   snapshot use in the context of DM thin provisioning.

 - Fix DM raid's table status relative to an active rebuild.

 - Fix DM crypt to use GFP_NOIO rather than GFP_NOFS in call to
   skcipher_request_alloc(). Also fix benbi IV constructor crash if used
   in authenticated mode.

 - Add DM crypt support for Elephant diffuser to allow for Bitlocker
   compatibility.

 - Fix DM verity target to not prefetch hash blocks for data that has
   already been verified.

 - Fix DM writecache's incorrect flush sequence during commit when in
   SSD mode.

 - Improve DM writecache's sequential write performance on SSDs.

 - Add DM zoned target support for zone sizes smaller than 128MiB.

 - Add DM multipath 'queue_if_no_path_timeout_secs' module param to
   allow timeout if path isn't reinstated. This allows users a kernel
   safety-net against IO hanging indefinitely, due to no active paths,
   that has historically only been provided by multipathd userspace.

 - Various DM code cleanups to use true/false rather than 1/0, a
   variable rename in dm-dust, and fix for a math error in comment for
   DM thin metadata's ondisk format.

* tag 'for-5.6/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (21 commits)
  dm: fix potential for q->make_request_fn NULL pointer
  dm writecache: improve performance of large linear writes on SSDs
  dm mpath: Add timeout mechanism for queue_if_no_path
  dm thin: change data device's flush_bio to be member of struct pool
  dm thin: don't allow changing data device during thin-pool reload
  dm thin: fix use-after-free in metadata_pre_commit_callback
  dm thin metadata: use pool locking at end of dm_pool_metadata_close
  dm writecache: fix incorrect flush sequence when doing SSD mode commit
  dm crypt: fix benbi IV constructor crash if used in authenticated mode
  dm crypt: Implement Elephant diffuser for Bitlocker compatibility
  dm space map common: fix to ensure new block isn't already in use
  dm verity: don't prefetch hash blocks for already-verified data
  dm crypt: fix GFP flags passed to skcipher_request_alloc()
  dm thin metadata: Fix trivial math error in on-disk format documentation
  dm thin metadata: use true/false for bool variable
  dm snapshot: use true/false for bool variable
  dm bio prison v2: use true/false for bool variable
  dm mpath: use true/false for bool variable
  dm zoned: support zone sizes smaller than 128MiB
  dm raid: table line rebuild status fixes
  ...
2020-01-29 18:08:49 -08:00
Linus Torvalds
05ef8b97dd It has been a relatively quiet cycle for documentation, but there's still a
couple of things of note:
 
  - Conversion of the NFS documentation to RST
 
  - A new document on how to help with documentation (and a maintainer
    profile entry too)
 
 Plus the usual collection of typo fixes, etc.
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Merge tag 'docs-5.6' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "It has been a relatively quiet cycle for documentation, but there's
  still a couple of things of note:

   - Conversion of the NFS documentation to RST

   - A new document on how to help with documentation (and a maintainer
     profile entry too)

  Plus the usual collection of typo fixes, etc"

* tag 'docs-5.6' of git://git.lwn.net/linux: (40 commits)
  docs: filesystems: add overlayfs to index.rst
  docs: usb: remove some broken references
  scripts/find-unused-docs: Fix massive false positives
  docs: nvdimm: use ReST notation for subsection
  zram: correct documentation about sysfs node of huge page writeback
  Documentation: zram: various fixes in zram.rst
  Add a maintainer entry profile for documentation
  Add a document on how to contribute to the documentation
  docs: Keep up with the location of NoUri
  Documentation: Call out example SYM_FUNC_* usage as x86-specific
  Documentation: nfs: fault_injection: convert to ReST
  Documentation: nfs: pnfs-scsi-server: convert to ReST
  Documentation: nfs: convert pnfs-block-server to ReST
  Documentation: nfs: idmapper: convert to ReST
  Documentation: convert nfsd-admin-interfaces to ReST
  Documentation: nfs-rdma: convert to ReST
  Documentation: nfsroot.rst: COSMETIC: refill a paragraph
  Documentation: nfsroot.txt: convert to ReST
  Documentation: convert nfs.txt to ReST
  Documentation: filesystems: convert vfat.txt to RST
  ...
2020-01-29 15:27:31 -08:00
Linus Torvalds
08a3ef8f6b linux-kselftest-5.6-rc1-kunit
This kunit update for Linux 5.6-rc1 consists of:
 
 -- Support for building kunit as a module from Alan Maguire
 -- AppArmor KUnit tests for policy unpack from Mike Salvatore
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Merge tag 'linux-kselftest-5.6-rc1-kunit' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest kunit updates from Shuah Khan:
 "This kunit update consists of:

   - Support for building kunit as a module from Alan Maguire

   - AppArmor KUnit tests for policy unpack from Mike Salvatore"

* tag 'linux-kselftest-5.6-rc1-kunit' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: building kunit as a module breaks allmodconfig
  kunit: update documentation to describe module-based build
  kunit: allow kunit to be loaded as a module
  kunit: remove timeout dependence on sysctl_hung_task_timeout_seconds
  kunit: allow kunit tests to be loaded as a module
  kunit: hide unexported try-catch interface in try-catch-impl.h
  kunit: move string-stream.h to lib/kunit
  apparmor: add AppArmor KUnit tests for policy unpack
2020-01-29 15:25:34 -08:00
Bjorn Helgaas
c11dfed9ca Merge branch 'remotes/lorenzo/pci/qcom'
- Add DT clock/reset info for SDM845 PCIe controller (Bjorn Andersson)

  - Add support for SDM845 PCIe controller to the qcom driver (Bjorn
    Andersson)

* remotes/lorenzo/pci/qcom:
  PCI: qcom: Add support for SDM845 PCIe controller
  dt-bindings: PCI: qcom: Add support for SDM845 PCIe
2020-01-29 17:00:06 -06:00
Bjorn Helgaas
4c6a8fe3aa Merge branch 'remotes/lorenzo/pci/dwc'
- Add intel-gw driver for PCIe host controller on Intel Gateway SoC
    (Dilip Kota)

  - Use shared DesignWare helpers to configure Fast Training Sequence (FTS)
    in artpec6 (Dilip Kota)

* remotes/lorenzo/pci/dwc:
  PCI: artpec6: Configure FTS with dwc helper function
  PCI: dwc: intel: PCIe RC controller driver
  dt-bindings: PCI: intel: Add YAML schemas for the PCIe RC controller
2020-01-29 17:00:04 -06:00
Bjorn Helgaas
61d02c37fc Merge branch 'remotes/lorenzo/pci/brcmstb'
- Add brcmstb PCIe bindings for Raspberry Pi 4 (Jim Quinlan)

  - Add Broadcom STB PCIe host controller driver (Jim Quinlan)

  - Add MSI support for Broadcom STB PCIe host controller driver (Jim
    Quinlan)

* remotes/lorenzo/pci/brcmstb:
  PCI: brcmstb: Add MSI support
  PCI: brcmstb: Add Broadcom STB PCIe host controller driver
  dt-bindings: PCI: Add bindings for brcmstb's PCIe device
2020-01-29 17:00:03 -06:00
Luca Ceresoli
4fcb445ec6 docs: i2c: writing-clients: properly name the stop condition
In I2C there is no such thing as a "stop bit". Use the proper naming: "stop
condition".

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reported-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:02:09 +01:00
Luca Ceresoli
ca5dbb0272 docs: i2c: i2c-protocol: use same wording as smbus-protocol
In smbus-protocol.rst we use the text "Implemented by" for the same meaning
as "This corresponds to". Change everything to "Implemented by" for
coherency.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reported-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:02:07 +01:00
Luca Ceresoli
f6fcefa10f docs: i2c: rename sections so the overall picture is clearer
Some of the section names are not very clear. Reading those names in the
index.rst page does not help much in grasping what the content is supposed
to be.

Rename those sections to clarify their content, especially when reading
the index page.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Acked-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:02:06 +01:00
Luca Ceresoli
1ef0572296 docs: i2c: old-module-parameters: use monospace instead of ""
Use a monospace (literal) formatting for better readability of sysfs
attributes and the "dummy" client name. This looks much more readable in
ReST-generated output.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:59 +01:00
Luca Ceresoli
dfea2b16cc docs: i2c: old-module-parameters: clarify this is for obsolete kernels
This section applies only to code for very old kernels. Avoid people
reading this unnecessarily.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:57 +01:00
Luca Ceresoli
899b56b37e docs: i2c: old-module-parameters: fix internal hyperlink
Use ReST syntax so that a proper hyperlink is generated.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:56 +01:00
Luca Ceresoli
22714ef854 docs: i2c: instantiating-devices: use monospace for sysfs attributes
Use a monospace (literal) formatting for better readability of sysfs
attributes.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:54 +01:00
Luca Ceresoli
da9a80bf19 docs: i2c: instantiating-devices: rearrange static instatiation
Among the "static" instantiation methods the "board file" method is
described first. Move it as last, since it is being replaced by the other
methods.

Also fix subsubsection heading syntax and remove the "Method 1[abc]"
prefix as the subsubsection structure clarifies the logical hierarchy.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:52 +01:00
Luca Ceresoli
4f71daf629 docs: i2c: instantiating-devices: fix internal hyperlink
Use ReST syntax so that a proper hyperlink is generated.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:51 +01:00
Luca Ceresoli
95b83774e3 docs: i2c: smbus-protocol: improve I2C Block transactions description
Clarify from the beginning what these transactions are, and specifically
how they differ from the SMBus counterparts, i.e. the lack of a Count byte.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:49 +01:00
Luca Ceresoli
c7148b059c docs: i2c: smbus-protocol: fix punctuation
Remove misplaced dot before colon.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:47 +01:00
Luca Ceresoli
414a596454 docs: i2c: smbus-protocol: fix typo
The subject is plural, fix the verb.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:46 +01:00
Luca Ceresoli
b36cbb70e4 docs: i2c: smbus-protocol: fix kernel-doc function syntax
This clarifies these are functions (and would/will adds a hyperlink to the
function documentation if/when documented).

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:44 +01:00
Luca Ceresoli
3c13f1fbec docs: i2c: smbus-protocol: enable kernel-doc function syntax
Hyperlinks from function names are not generated in headings. Move them in
the plain text so they are rendered as clickable hyperlinks.

While there also remove an unneeded colon in a heading.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:42 +01:00
Luca Ceresoli
9e89d61878 docs: i2c: smbus-protocol: use proper names for ACK and NACK
Use the proper ACK and NACK naming from the I2C specification instead of
"accept" and "reverse accept".

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:41 +01:00
Luca Ceresoli
026c0fe666 docs: i2c: smbus-protocol: remove unneeded colons from table
These colons are not needed: the columns already nicely separate the
symbols from their description. They are also inconsistently preceded by
whitespace.

Remove the colons completely to simplify and clean up.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:39 +01:00
Luca Ceresoli
c0faa8a6be docs: i2c: smbus-protocol: properly name start and stop conditions
In I2C there is no such thing as a "start bit" or a "stop bit". Use the
proper naming: "start condition" and "stop condition".

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:37 +01:00
Luca Ceresoli
924fbb4d2e docs: i2c: smbus-protocol: fix link syntax
Use the proper ReST syntax to generate a valid hyperlink.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:36 +01:00
Luca Ceresoli
db0d7424e7 docs: i2c: i2c-protocol: use proper names for ACK and NACK
Use the proper ACK and NACK naming from the I2C specification instead of
"accept" and "reverse accept".

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:34 +01:00
Luca Ceresoli
02622c8861 docs: i2c: i2c-protocol: remove unneeded colons from table
These colons are not needed: the columns already nicely separate the
symbols from their description. They are also inconsistently preceded by
whitespace.

Remove the colons completely to simplify and clean up.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:32 +01:00
Luca Ceresoli
f954731d2a docs: i2c: i2c-protocol: properly name start and stop conditions
In I2C there is no such thing as a "start bit" or a "stop bit". Use the
proper naming: "start condition" and "stop condition".

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:30 +01:00
Luca Ceresoli
f72beb8bf9 docs: i2c: i2c-protocol: fix kernel-doc function syntax
This clarifies these are functions and adds a hyperlink to the function
documentation.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:29 +01:00
Luca Ceresoli
48ca3b7fb8 docs: i2c: replace "I2C-transfer" -> "I2C transfer" consistently
"I2C transfer" is a legitimate english sentence, no need for a hyphen
between the two words, as as such it is used in most of the
documentation. Remove the hyphen in the few places where it is present.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Acked-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:27 +01:00
Luca Ceresoli
40c573d12e docs: i2c: fix typo
Fix "issus" -> "issues".

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Acked-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:25 +01:00
Luca Ceresoli
2f07c05f14 docs: i2c: call it "I2C" consistently
Uppercase "I2C" is used almost everywhere in the docs, but the lowercase
version "i2c" is used somewhere. Use the uppercase form consistently.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Acked-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:24 +01:00
Luca Ceresoli
020bc5b929 docs: i2c: summary: rewrite the "terminology" section
This section, partly dating back to the pre-git era, is somewhat
unclear and partly incorrect. Rewrite it almost completely including a
reference figure, concise but precise definition of each term and the
paths where drivers are found. Particular care has been put in clarifying
the relation between adapter and algorithm, which has no correspondence
in the I2C spec terminology.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:16 +01:00
Luca Ceresoli
096c22f88e docs: i2c: summary: extend introduction
- state the "official" name (I²C, not I2C, according to the spec) at
   the beginning but keep using the more practical I2C elsewhere
 - mention some known different names
 - add link to the specification document

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:13 +01:00
Luca Ceresoli
2159393808 docs: i2c: sort index logically
The index page currently lists sections in alphabetical file order without
caring about their content. Sort sections based on their content logically,
according to the following structure:

 * Intro to I2C/SMBus and their usage in Linux: summary, i2c-protocol,
   smbus-protocol, instantiating-devices, busses/index, i2c-topology,
   muxes/i2c-mux-gpio
 * Implementing drivers: writing-clients, dev-interface,
   dma-considerations, fault-codes, functionality
 * Debugging: gpio-fault-injection, i2c-stub
 * Slave I2C: slave-interface, slave-eeprom-backend
 * Advanced: ten-bit-addresses
 * Obsolete info: upgrading-clients, old-module-parameters

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29 22:01:12 +01:00
Wolfram Sang
4a890148df Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-5.6
The main feature is the idle-state rework of the pca954x driver from Biwen Li.
2020-01-29 21:59:20 +01:00
Wolfram Sang
6810df46c4 at24 updates for linux v5.6
- minor maintenance: update the license tag, sort headers
 - move support for the write-protect pin into nvmem core
 - add a reference to the new wp-gpios property in nvmem to at25 bindings
 - add support for regulator and pm_runtime control
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Merge tag 'at24-updates-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-5.6

at24 updates for linux v5.6

- minor maintenance: update the license tag, sort headers
- move support for the write-protect pin into nvmem core
- add a reference to the new wp-gpios property in nvmem to at25 bindings
- add support for regulator and pm_runtime control
2020-01-29 21:56:36 +01:00
Linus Torvalds
5307040655 Merge branch 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull adfs updates from Al Viro:
 "adfs stuff for this cycle"

* 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (42 commits)
  fs/adfs: bigdir: Fix an error code in adfs_fplus_read()
  Documentation: update adfs filesystem documentation
  fs/adfs: mostly divorse inode number from indirect disc address
  fs/adfs: super: add support for E and E+ floppy image formats
  fs/adfs: super: extract filesystem block probe
  fs/adfs: dir: remove debug in adfs_dir_update()
  fs/adfs: super: fix inode dropping
  fs/adfs: bigdir: implement directory update support
  fs/adfs: bigdir: calculate and validate directory checkbyte
  fs/adfs: bigdir: directory validation strengthening
  fs/adfs: bigdir: extract directory validation
  fs/adfs: bigdir: factor out directory entry offset calculation
  fs/adfs: newdir: split out directory commit from update
  fs/adfs: newdir: clean up adfs_f_update()
  fs/adfs: newdir: merge adfs_dir_read() into adfs_f_read()
  fs/adfs: newdir: improve directory validation
  fs/adfs: newdir: factor out directory format validation
  fs/adfs: dir: use pointers to access directory head/tails
  fs/adfs: dir: add more efficient iterate() per-format method
  fs/adfs: dir: switch to iterate_shared method
  ...
2020-01-29 11:45:09 -08:00
Linus Torvalds
6aee4badd8 Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull openat2 support from Al Viro:
 "This is the openat2() series from Aleksa Sarai.

  I'm afraid that the rest of namei stuff will have to wait - it got
  zero review the last time I'd posted #work.namei, and there had been a
  leak in the posted series I'd caught only last weekend. I was going to
  repost it on Monday, but the window opened and the odds of getting any
  review during that... Oh, well.

  Anyway, openat2 part should be ready; that _did_ get sane amount of
  review and public testing, so here it comes"

From Aleksa's description of the series:
 "For a very long time, extending openat(2) with new features has been
  incredibly frustrating. This stems from the fact that openat(2) is
  possibly the most famous counter-example to the mantra "don't silently
  accept garbage from userspace" -- it doesn't check whether unknown
  flags are present[1].

  This means that (generally) the addition of new flags to openat(2) has
  been fraught with backwards-compatibility issues (O_TMPFILE has to be
  defined as __O_TMPFILE|O_DIRECTORY|[O_RDWR or O_WRONLY] to ensure old
  kernels gave errors, since it's insecure to silently ignore the
  flag[2]). All new security-related flags therefore have a tough road
  to being added to openat(2).

  Furthermore, the need for some sort of control over VFS's path
  resolution (to avoid malicious paths resulting in inadvertent
  breakouts) has been a very long-standing desire of many userspace
  applications.

  This patchset is a revival of Al Viro's old AT_NO_JUMPS[3] patchset
  (which was a variant of David Drysdale's O_BENEATH patchset[4] which
  was a spin-off of the Capsicum project[5]) with a few additions and
  changes made based on the previous discussion within [6] as well as
  others I felt were useful.

  In line with the conclusions of the original discussion of
  AT_NO_JUMPS, the flag has been split up into separate flags. However,
  instead of being an openat(2) flag it is provided through a new
  syscall openat2(2) which provides several other improvements to the
  openat(2) interface (see the patch description for more details). The
  following new LOOKUP_* flags are added:

  LOOKUP_NO_XDEV:

     Blocks all mountpoint crossings (upwards, downwards, or through
     absolute links). Absolute pathnames alone in openat(2) do not
     trigger this. Magic-link traversal which implies a vfsmount jump is
     also blocked (though magic-link jumps on the same vfsmount are
     permitted).

  LOOKUP_NO_MAGICLINKS:

     Blocks resolution through /proc/$pid/fd-style links. This is done
     by blocking the usage of nd_jump_link() during resolution in a
     filesystem. The term "magic-links" is used to match with the only
     reference to these links in Documentation/, but I'm happy to change
     the name.

     It should be noted that this is different to the scope of
     ~LOOKUP_FOLLOW in that it applies to all path components. However,
     you can do openat2(NO_FOLLOW|NO_MAGICLINKS) on a magic-link and it
     will *not* fail (assuming that no parent component was a
     magic-link), and you will have an fd for the magic-link.

     In order to correctly detect magic-links, the introduction of a new
     LOOKUP_MAGICLINK_JUMPED state flag was required.

  LOOKUP_BENEATH:

     Disallows escapes to outside the starting dirfd's
     tree, using techniques such as ".." or absolute links. Absolute
     paths in openat(2) are also disallowed.

     Conceptually this flag is to ensure you "stay below" a certain
     point in the filesystem tree -- but this requires some additional
     to protect against various races that would allow escape using
     "..".

     Currently LOOKUP_BENEATH implies LOOKUP_NO_MAGICLINKS, because it
     can trivially beam you around the filesystem (breaking the
     protection). In future, there might be similar safety checks done
     as in LOOKUP_IN_ROOT, but that requires more discussion.

  In addition, two new flags are added that expand on the above ideas:

  LOOKUP_NO_SYMLINKS:

     Does what it says on the tin. No symlink resolution is allowed at
     all, including magic-links. Just as with LOOKUP_NO_MAGICLINKS this
     can still be used with NOFOLLOW to open an fd for the symlink as
     long as no parent path had a symlink component.

  LOOKUP_IN_ROOT:

     This is an extension of LOOKUP_BENEATH that, rather than blocking
     attempts to move past the root, forces all such movements to be
     scoped to the starting point. This provides chroot(2)-like
     protection but without the cost of a chroot(2) for each filesystem
     operation, as well as being safe against race attacks that
     chroot(2) is not.

     If a race is detected (as with LOOKUP_BENEATH) then an error is
     generated, and similar to LOOKUP_BENEATH it is not permitted to
     cross magic-links with LOOKUP_IN_ROOT.

     The primary need for this is from container runtimes, which
     currently need to do symlink scoping in userspace[7] when opening
     paths in a potentially malicious container.

     There is a long list of CVEs that could have bene mitigated by
     having RESOLVE_THIS_ROOT (such as CVE-2017-1002101,
     CVE-2017-1002102, CVE-2018-15664, and CVE-2019-5736, just to name a
     few).

  In order to make all of the above more usable, I'm working on
  libpathrs[8] which is a C-friendly library for safe path resolution.
  It features a userspace-emulated backend if the kernel doesn't support
  openat2(2). Hopefully we can get userspace to switch to using it, and
  thus get openat2(2) support for free once it's ready.

  Future work would include implementing things like
  RESOLVE_NO_AUTOMOUNT and possibly a RESOLVE_NO_REMOTE (to allow
  programs to be sure they don't hit DoSes though stale NFS handles)"

* 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  Documentation: path-lookup: include new LOOKUP flags
  selftests: add openat2(2) selftests
  open: introduce openat2(2) syscall
  namei: LOOKUP_{IN_ROOT,BENEATH}: permit limited ".." resolution
  namei: LOOKUP_IN_ROOT: chroot-like scoped resolution
  namei: LOOKUP_BENEATH: O_BENEATH-like scoped resolution
  namei: LOOKUP_NO_XDEV: block mountpoint crossing
  namei: LOOKUP_NO_MAGICLINKS: block magic-link resolution
  namei: LOOKUP_NO_SYMLINKS: block symlink resolution
  namei: allow set_root() to produce errors
  namei: allow nd_jump_link() to produce errors
  nsfs: clean-up ns_get_path() signature to return int
  namei: only return -ECHILD from follow_dotdot_rcu()
2020-01-29 11:20:24 -08:00
Linus Torvalds
701a9c8092 Char/Misc driver changes for 5.6-rc1
Here is the big char/misc/whatever driver changes for 5.6-rc1
 
 Included in here are loads of things from a variety of different driver
 subsystems:
 	- soundwire updates
 	- binder updates
 	- nvmem updates
 	- firmware drivers updates
 	- extcon driver updates
 	- various misc driver updates
 	- fpga driver updates
 	- interconnect subsystem and driver updates
 	- bus driver updates
 	- uio driver updates
 	- mei driver updates
 	- w1 driver cleanups
 	- various other small driver updates
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc/whatever driver changes for 5.6-rc1

  Included in here are loads of things from a variety of different
  driver subsystems:
   - soundwire updates
   - binder updates
   - nvmem updates
   - firmware drivers updates
   - extcon driver updates
   - various misc driver updates
   - fpga driver updates
   - interconnect subsystem and driver updates
   - bus driver updates
   - uio driver updates
   - mei driver updates
   - w1 driver cleanups
   - various other small driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (86 commits)
  mei: me: add jasper point DID
  char: hpet: Use flexible-array member
  binder: fix log spam for existing debugfs file creation.
  mei: me: add comet point (lake) H device ids
  nvmem: add QTI SDAM driver
  dt-bindings: nvmem: add binding for QTI SPMI SDAM
  dt-bindings: imx-ocotp: Add i.MX8MP compatible
  dt-bindings: soundwire: fix example
  soundwire: cadence: fix kernel-doc parameter descriptions
  soundwire: intel: report slave_ids for each link to SOF driver
  siox: Use the correct style for SPDX License Identifier
  w1: omap-hdq: Simplify driver with PM runtime autosuspend
  firmware: stratix10-svc: Remove unneeded semicolon
  firmware: google: Probe for a GSMI handler in firmware
  firmware: google: Unregister driver_info on failure and exit in gsmi
  firmware: google: Release devices before unregistering the bus
  slimbus: qcom: add missed clk_disable_unprepare in remove
  slimbus: Use the correct style for SPDX License Identifier
  slimbus: qcom-ngd-ctrl: Use dma_request_chan() instead dma_request_slave_channel()
  dt-bindings: SLIMBus: add slim devices optional properties
  ...
2020-01-29 10:35:54 -08:00
Linus Torvalds
7ba31c3f2f Staging/IIO patches for 5.6-rc1
Here is the big staging/iio driver patches for 5.6-rc1
 
 Included in here are:
 	- lots of new IIO drivers and updates for that subsystem
 	- the usual huge quantity of minor cleanups for staging drivers
 	- removal of the following staging drivers:
 		- isdn/avm
 		- isdn/gigaset
 		- isdn/hysdn
 		- octeon-usb
 		- octeon ethernet
 
 Overall we deleted far more lines than we added, removing over 40k of
 old and obsolete driver code.
 
 All of these changes have been in linux-next for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO updates from Greg KH:
 "Here is the big staging/iio driver patches for 5.6-rc1

  Included in here are:

   - lots of new IIO drivers and updates for that subsystem

   - the usual huge quantity of minor cleanups for staging drivers

   - removal of the following staging drivers:
       - isdn/avm
       - isdn/gigaset
       - isdn/hysdn
       - octeon-usb
       - octeon ethernet

  Overall we deleted far more lines than we added, removing over 40k of
  old and obsolete driver code.

  All of these changes have been in linux-next for a while with no
  reported issues"

* tag 'staging-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (353 commits)
  staging: most: usb: check for NULL device
  staging: next: configfs: fix release link
  staging: most: core: fix logging messages
  staging: most: core: remove container struct
  staging: most: remove struct device core driver
  staging: most: core: drop device reference
  staging: most: remove device from interface structure
  staging: comedi: drivers: fix spelling mistake "to" -> "too"
  staging: exfat: remove fs_func struct.
  staging: wilc1000: avoid mutex unlock without lock in wilc_wlan_handle_txq()
  staging: wilc1000: return zero on success and non-zero on function failure
  staging: axis-fifo: replace spinlock with mutex
  staging: wilc1000: remove unused code prior to throughput enhancement in SPI
  staging: wilc1000: added 'wilc_' prefix for 'struct assoc_resp' name
  staging: wilc1000: move firmware API struct's to separate header file
  staging: wilc1000: remove use of infinite loop conditions
  staging: kpc2000: rename variables with kpc namespace
  staging: vt6656: Remove memory buffer from vnt_download_firmware.
  staging: vt6656: Just check NEWRSR_DECRYPTOK for RX_FLAG_DECRYPTED.
  staging: vt6656: Use vnt_rx_tail struct for tail variables.
  ...
2020-01-29 10:15:11 -08:00
Linus Torvalds
aac9662671 USB/Thunderbolt/PHY driver updates for 5.6-rc1
Here is the big USB and Thunderbolt and PHY driver updates for 5.6-rc1.
 
 With the advent of USB4, "Thunderbolt" has really become USB4, so the
 renaming of the Kconfig option and starting to share subsystem code has
 begun, hence both subsystems coming in through the same tree here.
 
 PHY driver updates also touched USB drivers, so that is coming in
 through here as well.
 
 Major stuff included in here are:
 	- USB 4 initial support added (i.e. Thunderbolt)
 	- musb driver updates
 	- USB gadget driver updates
 	- PHY driver updates
 	- USB PHY driver updates
 	- lots of USB serial stuff fixed up
 	- USB typec updates
 	- USB-IP fixes
 	- lots of other smaller USB driver updates
 
 All of these have been in linux-next for a while now (the usb-serial
 tree is already tested in linux-next on its own before merged into
 here), with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt/PHY driver updates from Greg KH:
 "Here is the big USB and Thunderbolt and PHY driver updates for
  5.6-rc1.

  With the advent of USB4, "Thunderbolt" has really become USB4, so the
  renaming of the Kconfig option and starting to share subsystem code
  has begun, hence both subsystems coming in through the same tree here.

  PHY driver updates also touched USB drivers, so that is coming in
  through here as well.

  Major stuff included in here are:
   - USB 4 initial support added (i.e. Thunderbolt)
   - musb driver updates
   - USB gadget driver updates
   - PHY driver updates
   - USB PHY driver updates
   - lots of USB serial stuff fixed up
   - USB typec updates
   - USB-IP fixes
   - lots of other smaller USB driver updates

  All of these have been in linux-next for a while now (the usb-serial
  tree is already tested in linux-next on its own before merged into
  here), with no reported issues"

[ Removed an incorrect compile test enablement for PHY_EXYNOS5250_SATA
  that causes configuration warnings    - Linus ]

* tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits)
  Doc: ABI: add usb charger uevent
  usb: phy: show USB charger type for user
  usb: cdns3: fix spelling mistake and rework grammar in text
  usb: phy: phy-gpio-vbus-usb: Convert to GPIO descriptors
  USB: serial: cyberjack: fix spelling mistake "To" -> "Too"
  USB: serial: ir-usb: simplify endpoint check
  USB: serial: ir-usb: make set_termios synchronous
  USB: serial: ir-usb: fix IrLAP framing
  USB: serial: ir-usb: fix link-speed handling
  USB: serial: ir-usb: add missing endpoint sanity check
  usb: typec: fusb302: fix "op-sink-microwatt" default that was in mW
  usb: typec: wcove: fix "op-sink-microwatt" default that was in mW
  usb: dwc3: pci: add ID for the Intel Comet Lake -V variant
  usb: typec: tcpci: mask event interrupts when remove driver
  usb: host: xhci-tegra: set MODULE_FIRMWARE for tegra186
  usb: chipidea: add inline for ci_hdrc_host_driver_init if host is not defined
  usb: chipidea: handle single role for usb role class
  usb: musb: fix spelling mistake: "periperal" -> "peripheral"
  phy: ti: j721e-wiz: Fix build error without CONFIG_OF_ADDRESS
  USB: usbfs: Always unlink URBs in reverse order
  ...
2020-01-29 10:09:44 -08:00
Linus Torvalds
6ba3d7066c This is the bulk of pin control changes for the v5.6 kernel cycle:
Core changes:
 
 - Dropped the chained IRQ setup callback into GPIOLIB as we
   got rid of the last users of that in this changeset.
 
 New drivers:
 
 - New driver for Ingenic X1830.
 
 - New driver for Freescale i.MX8MP.
 
 Driver enhancements:
 
 - Fix all remaining Intel drivers to pass their IRQ chips
   along with the GPIO chips.
 
 - Intel Baytrail allocates its irqchip dynamically.
 
 - Intel Lynxpoint is thoroughly rewritten and modernized.
 
 - Aspeed AST2600 pin muxing and configuration is much
   improved.
 
 - Qualcomm SC7180 functions are updated and wakeup interrupt
   map is provided.
 
 - A whole slew of Renesas SH-PFC cleanups and improvements.
 
 - Fix up the Intel DT bindings to use the generic YAML
   DT bindings schema. (A first user of this.)
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Merge tag 'pinctrl-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes, nothing too exciting about
  this.

  Some changes hit arch/sh and arch/arm but are well isolated and
  acknowledged by the respective arch maintainers.

  Core changes:

   - Dropped the chained IRQ setup callback into GPIOLIB as we got rid
     of the last users of that in this changeset.

  New drivers:

   - New driver for Ingenic X1830.

   - New driver for Freescale i.MX8MP.

  Driver enhancements:

   - Fix all remaining Intel drivers to pass their IRQ chips along with
     the GPIO chips.

   - Intel Baytrail allocates its irqchip dynamically.

   - Intel Lynxpoint is thoroughly rewritten and modernized.

   - Aspeed AST2600 pin muxing and configuration is much improved.

   - Qualcomm SC7180 functions are updated and wakeup interrupt map is
     provided.

   - A whole slew of Renesas SH-PFC cleanups and improvements.

   - Fix up the Intel DT bindings to use the generic YAML DT bindings
     schema (a first user of this)"

* tag 'pinctrl-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
  pinctrl: madera: Remove extra blank line
  pinctrl: qcom: Don't lock around irq_set_irq_wake()
  pinctrl: mvebu: armada-37xx: use use platform api
  gpio: Drop the chained IRQ handler assign function
  pinctrl: freescale: Add i.MX8MP pinctrl driver support
  dt-bindings: imx: Add pinctrl binding doc for i.MX8MP
  pinctrl: tigerlake: Tiger Lake uses _HID enumeration
  pinctrl: sunrisepoint: Add Coffee Lake-S ACPI ID
  pinctrl: iproc: Use platform_get_irq_optional() to avoid error message
  pinctrl: dt-bindings: Fix some errors in the lgm and pinmux schema
  pinctrl: intel: Pass irqchip when adding gpiochip
  pinctrl: intel: Add GPIO <-> pin mapping ranges via callback
  pinctrl: baytrail: Replace WARN with dev_info_once when setting direct-irq pin to output
  pinctrl: baytrail: Do not clear IRQ flags on direct-irq enabled pins
  pinctrl: sunrisepoint: Add missing Interrupt Status register offset
  pinctrl: sh-pfc: Split R-Car H3 support in two independent drivers
  pinctrl: artpec6: fix __iomem on reg in set
  pinctrl: ingenic: Use devm_platform_ioremap_resource()
  pinctrl: ingenic: Factorize irq_set_type function
  pinctrl: ingenic: Remove duplicated ingenic_chip_info structures
  ...
2020-01-29 09:51:36 -08:00
Linus Torvalds
fa889d8555 This is the bulk of GPIO changes for the v5.6 kernel cycle
Core changes:
 
 - Document the usecases for the kernelspace vs userspace
   handling of GPIOs.
 
 - Handle MSI (message signalled interrupts) properly in the
   core hierarchical irqdomain code.
 
 - Fix a rare race condition while initializing the descriptor
   array.
 
 New drivers:
 
 - Xylon LogiCVC GPIO driver.
 
 - WDC934x GPIO controller driver.
 
 Driver improvements:
 
 - Implemented suspend/resume in the Tegra driver.
 
 - MPC8xx edge detection fixup.
 
 - Properly convert ThunderX to use hierarchical irqdomain
   with GPIOLIB_IRQCHIP on top of the revert of the previous
   buggy switchover. This time it works (hopefully).
 
 Misc:
 
 - Drop a FMC remnant file <linux/ipmi-fru.h>
 
 - A slew of fixes.
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Merge tag 'gpio-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v5.6 kernel cycle.

  This is a pretty calm cycle so far, nothing special going on really.
  Some more changes will come in from the irqchip and pin control trees.

  I also deleted an orphan include file for FMC that was dangling since
  subsystem was removed.

  Core changes:

   - Document the usecases for the kernelspace vs userspace handling of
     GPIOs.

   - Handle MSI (message signalled interrupts) properly in the core
     hierarchical irqdomain code.

   - Fix a rare race condition while initializing the descriptor array.

  New drivers:

   - Xylon LogiCVC GPIO driver.

   - WDC934x GPIO controller driver.

  Driver improvements:

   - Implemented suspend/resume in the Tegra driver.

   - MPC8xx edge detection fixup.

   - Properly convert ThunderX to use hierarchical irqdomain with
     GPIOLIB_IRQCHIP on top of the revert of the previous buggy
     switchover. This time it works (hopefully).

  Misc:

   - Drop a FMC remnant file <linux/ipmi-fru.h>

   - A slew of fixes"

* tag 'gpio-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (48 commits)
  MAINTAINERS: Replace Tien Hock Loh as Altera PIO maintainer
  gpiolib: hold gpio devices lock until ->descs array is initialised
  gpio: aspeed-sgpio: fixed typos
  gpio: mvebu: clear irq in edge cause register before unmask edge irq
  gpiolib: Lower verbosity when allocating hierarchy irq
  gpiolib: Remove duplicated function gpio_do_set_config()
  gpio: Fix the no return statement warning
  gpio: wcd934x: Add support to wcd934x gpio controller
  gpiolib: remove set but not used variable 'config'
  gpio: vx855: fixed a typo
  gpio: mockup: sort headers alphabetically
  gpio: mockup: update the license tag
  gpio: Remove the unused flags
  gpiolib: Set lockdep class for hierarchical irq domains
  gpio: thunderx: Switch to GPIOLIB_IRQCHIP
  gpiolib: Add the support for the msi parent domain
  gpiolib: Add support for the irqdomain which doesn't use irq_fwspec as arg
  gpio: Add use guidance documentation
  dt-bindings: gpio: wcd934x: Add bindings for gpio
  gpio: altera: change to platform_get_irq_optional to avoid false-positive error
  ...
2020-01-29 09:43:39 -08:00
SeongJae Park
cb9369bdbb xen/blkback: Squeeze page pools if a memory pressure is detected
Each `blkif` has a free pages pool for the grant mapping.  The size of
the pool starts from zero and is increased on demand while processing
the I/O requests.  If current I/O requests handling is finished or 100
milliseconds has passed since last I/O requests handling, it checks and
shrinks the pool to not exceed the size limit, `max_buffer_pages`.

Therefore, host administrators can cause memory pressure in blkback by
attaching a large number of block devices and inducing I/O.  Such
problematic situations can be avoided by limiting the maximum number of
devices that can be attached, but finding the optimal limit is not so
easy.  Improper set of the limit can results in memory pressure or a
resource underutilization.  This commit avoids such problematic
situations by squeezing the pools (returns every free page in the pool
to the system) for a while (users can set this duration via a module
parameter) if memory pressure is detected.

Discussions
===========

The `blkback`'s original shrinking mechanism returns only pages in the
pool which are not currently be used by `blkback` to the system.  In
other words, the pages that are not mapped with granted pages.  Because
this commit is changing only the shrink limit but still uses the same
freeing mechanism it does not touch pages which are currently mapping
grants.

Once memory pressure is detected, this commit keeps the squeezing limit
for a user-specified time duration.  The duration should be neither too
long nor too short.  If it is too long, the squeezing incurring overhead
can reduce the I/O performance.  If it is too short, `blkback` will not
free enough pages to reduce the memory pressure.  This commit sets the
value as `10 milliseconds` by default because it is a short time in
terms of I/O while it is a long time in terms of memory operations.
Also, as the original shrinking mechanism works for at least every 100
milliseconds, this could be a somewhat reasonable choice.  I also tested
other durations (refer to the below section for more details) and
confirmed that 10 milliseconds is the one that works best with the test.
That said, the proper duration depends on actual configurations and
workloads.  That's why this commit allows users to set the duration as a
module parameter.

Memory Pressure Test
====================

To show how this commit fixes the memory pressure situation well, I
configured a test environment on a xen-running virtualization system.
On the `blkfront` running guest instances, I attach a large number of
network-backed volume devices and induce I/O to those.  Meanwhile, I
measure the number of pages that swapped in (pswpin) and out (pswpout)
on the `blkback` running guest.  The test ran twice, once for the
`blkback` before this commit and once for that after this commit.  As
shown below, this commit has dramatically reduced the memory pressure:

                pswpin  pswpout
    before      76,672  185,799
    after          867    3,967

Optimal Aggressive Shrinking Duration
-------------------------------------

To find a best squeezing duration, I repeated the test with three
different durations (1ms, 10ms, and 100ms).  The results are as below:

    duration    pswpin  pswpout
    1           707     5,095
    10          867     3,967
    100         362     3,348

As expected, the memory pressure decreases as the duration increases,
but the reduction become slow from the `10ms`.  Based on this results, I
chose the default duration as 10ms.

Performance Overhead Test
=========================

This commit could incur I/O performance degradation under severe memory
pressure because the squeezing will require more page allocations per
I/O.  To show the overhead, I artificially made a worst-case squeezing
situation and measured the I/O performance of a `blkfront` running
guest.

For the artificial squeezing, I set the `blkback.max_buffer_pages` using
the `/sys/module/xen_blkback/parameters/max_buffer_pages` file.  In this
test, I set the value to `1024` and `0`.  The `1024` is the default
value.  Setting the value as `0` is same to a situation doing the
squeezing always (worst-case).

If the underlying block device is slow enough, the squeezing overhead
could be hidden.  For the reason, I use a fast block device, namely the
rbd[1]:

    # xl block-attach guest phy:/dev/ram0 xvdb w

For the I/O performance measurement, I run a simple `dd` command 5 times
directly to the device as below and collect the 'MB/s' results.

    $ for i in {1..5}; do dd if=/dev/zero of=/dev/xvdb \
                             bs=4k count=$((256*512)); sync; done

The results are as below.  'max_pgs' represents the value of the
`blkback.max_buffer_pages` parameter.

    max_pgs   Min       Max       Median     Avg    Stddev
    0         417       423       420        419.4  2.5099801
    1024      414       425       416        417.8  4.4384682
    No difference proven at 95.0% confidence

In short, even worst case squeezing on ramdisk based fast block device
makes no visible performance degradation.  Please note that this is just
a very simple and minimal test.  On systems using super-fast block
devices and a special I/O workload, the results might be different.  If
you have any doubt, test on your machine with your workload to find the
optimal squeezing duration for you.

[1] https://www.kernel.org/doc/html/latest/admin-guide/blockdev/ramdisk.html

Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2020-01-29 07:35:49 -06:00
Vaibhav Jain
58b278f568 powerpc: Provide initial documentation for PAPR hcalls
This doc patch provides an initial description of the hcall op-codes
that are used by Linux kernel running as a guest (LPAR) on top of
PowerVM or any other sPAPR compliant hyper-visor (e.g qemu).

Apart from documenting the hcalls the doc-patch also provides a
rudimentary overview of how hcall ABI, how they are issued with the
Linux kernel and how information/control flows between the guest and
hypervisor.

Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Add SPDX tag, add it to index.rst]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190828082729.16695-1-vaibhav@linux.ibm.com
2020-01-29 21:30:50 +11:00
Mauro Carvalho Chehab
d0ce47cb99 docs: tracing: Fix a broken label
Sphinx warnings about his:

	Documentation/trace/kprobetrace.rst:68: WARNING: undefined label: user_mem_access (if the link has no caption the label must precede a section header)

The problem is quite simple: Sphinx wants a blank line after
references.

Link: http://lkml.kernel.org/r/a83ea390bc28784518fce772b4c961ea1c976f14.1560883872.git.mchehab+samsung@kernel.org

Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-01-28 23:14:13 -05:00
Linus Torvalds
73a0bff205 Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull IMA updates from Mimi Zohar:
 "Two new features - measuring certificates and querying IMA for a file
  hash - and three bug fixes:

   - Measuring certificates is like the rest of IMA, based on policy,
     but requires loading a custom policy. Certificates loaded onto a
     keyring, for example during early boot, before a custom policy has
     been loaded, are queued and only processed after loading the custom
     policy.

   - IMA calculates and caches files hashes. Other kernel subsystems,
     and possibly kernel modules, are interested in accessing these
     cached file hashes.

  The bug fixes prevent classifying a file short read (e.g. shutdown) as
  an invalid file signature, add a missing blank when displaying the
  securityfs policy rules containing LSM labels, and, lastly, fix the
  handling of the IMA policy information for unknown LSM labels"

* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  IMA: Defined delayed workqueue to free the queued keys
  IMA: Call workqueue functions to measure queued keys
  IMA: Define workqueue for early boot key measurements
  IMA: pre-allocate buffer to hold keyrings string
  ima: ima/lsm policy rule loading logic bug fixes
  ima: add the ability to query the cached hash of a given file
  ima: Add a space after printing LSM rules for readability
  IMA: fix measuring asymmetric keys Kconfig
  IMA: Read keyrings= option from the IMA policy
  IMA: Add support to limit measuring keys
  KEYS: Call the IMA hook to measure keys
  IMA: Define an IMA hook to measure keys
  IMA: Add KEY_CHECK func to measure keys
  IMA: Check IMA policy flag
  ima: avoid appraise error for hash calc interrupt
2020-01-28 18:52:09 -08:00
Linus Torvalds
abb22e44cf - Depromote debug print on the db8500 platform (Linus Walleij)
- Fix compilation warning when compiling with make W=1 (Amit Kucheria)
 
 - Code cleanup and refactoring, regmap conversion and add hwmon
   support on Qoriq (Andrey Smirnov)
 
 - Add an idle injection cpu cooling device and its documentation,
   rename the cpu_cooling device to cpufreq_cooling device (Daniel
   Lezcano)
 
 - Convert unexported functions to static, add the __init annotation in
   the thermal-of code and remove the pointless wrapper functions
   (Daniel Lezcano)
 
 - Fix register offset for Armada XP and register reset bit
   initialization (Zak Hays)
 
 - Enable hwmon on the rockchip (Stefan Schaeckeler)
 
 - Add the thermal sensor for the H6/H5/H3/A64/A83T/R40 sun8i platform
   and their device tree bindings, followed by a fix for the ths number
   and the sparse warnings (Yangtao Li)
 
 - Code cleansup for the sun8i and hwmon support (Yangtao Li)
 
 - Silent some messages which are misleading given the changes made in
   the previous version on generic-adc (Martin Blumenstingl)
 
 - Rename exynos to Exynos (Krzysztof Kozlowski)
 
 - Add the bcm2711 thermal driver with the device tree bindings (Stefan
   Wahren)
 
 - Use usleep_range() instead of udelay() as the call is always done in
   a sleep-able context (Geert Uytterhoeven)
 
 - Do code cleanup and re-organization to set the scene for a new
   process for the brcmstb (Florian Fainelli)
 
 - Fix bindings check issues on brcm (Stefan Wahren)
 
 - Add Jasper Lake support on int340x (Nivedita Swaminathan)
 
 - Add Comet Lake support on intel pch (Gayatri Kammela)
 
 - Fix unmatched pci_release_region() on x86 (Chuhong Yuan)
 
 - Remove temperature boundaries for rcar and rcar3 (Niklas Söderlund)
 
 - Fix return value to -ENODEV when thermal_zone_of_sensor_register()
   is called with the of-node is missing (Peter Mamonov)
 
 - Code cleanup, interrupt bouncing, and better support on stm32
   (Pascal Paillet)
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Merge tag 'thermal-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal updates from Daniel Lezcano:

 - Depromote debug print on the db8500 platform (Linus Walleij)

 - Fix compilation warning when compiling with make W=1 (Amit Kucheria)

 - Code cleanup and refactoring, regmap conversion and add hwmon support
   on Qoriq (Andrey Smirnov)

 - Add an idle injection cpu cooling device and its documentation,
   rename the cpu_cooling device to cpufreq_cooling device (Daniel
   Lezcano)

 - Convert unexported functions to static, add the __init annotation in
   the thermal-of code and remove the pointless wrapper functions
   (Daniel Lezcano)

 - Fix register offset for Armada XP and register reset bit
   initialization (Zak Hays)

 - Enable hwmon on the rockchip (Stefan Schaeckeler)

 - Add the thermal sensor for the H6/H5/H3/A64/A83T/R40 sun8i platform
   and their device tree bindings, followed by a fix for the ths number
   and the sparse warnings (Yangtao Li)

 - Code cleansup for the sun8i and hwmon support (Yangtao Li)

 - Silent some messages which are misleading given the changes made in
   the previous version on generic-adc (Martin Blumenstingl)

 - Rename exynos to Exynos (Krzysztof Kozlowski)

 - Add the bcm2711 thermal driver with the device tree bindings (Stefan
   Wahren)

 - Use usleep_range() instead of udelay() as the call is always done in
   a sleep-able context (Geert Uytterhoeven)

 - Do code cleanup and re-organization to set the scene for a new
   process for the brcmstb (Florian Fainelli)

 - Fix bindings check issues on brcm (Stefan Wahren)

 - Add Jasper Lake support on int340x (Nivedita Swaminathan)

 - Add Comet Lake support on intel pch (Gayatri Kammela)

 - Fix unmatched pci_release_region() on x86 (Chuhong Yuan)

 - Remove temperature boundaries for rcar and rcar3 (Niklas Söderlund)

 - Fix return value to -ENODEV when thermal_zone_of_sensor_register() is
   called with the of-node is missing (Peter Mamonov)

 - Code cleanup, interrupt bouncing, and better support on stm32 (Pascal
   Paillet)

* tag 'thermal-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (66 commits)
  thermal: stm32: Fix low threshold interrupt flood
  thermal: stm32: Improve temperature computing
  thermal: stm32: Handle multiple trip points
  thermal: stm32: Disable interrupts at probe
  thermal: stm32: Rework sensor mode management
  thermal: stm32: Fix icifr register name
  thermal: of: Make thermal_zone_of_sensor_register return -ENODEV if a sensor OF node is missing
  thermal: rcar_gen3_thermal: Remove temperature bound
  thermal: rcar_thermal: Remove temperature bound
  thermal: intel: intel_pch_thermal: Add Comet Lake (CML) platform support
  thermal: intel: Fix unmatched pci_release_region
  thermal: int340x: processor_thermal: Add Jasper Lake support
  dt-bindings: brcm,avs-ro-thermal: Fix binding check issues
  thermal: brcmstb_thermal: Register different ops per process
  thermal: brcmstb_thermal: Restructure interrupt registration
  thermal: brcmstb_thermal: Add 16nm process thermal parameters
  dt-bindings: thermal: Define BCM7216 thermal sensor compatible
  thermal: brcmstb_thermal: Prepare to support a different process
  thermal: brcmstb_thermal: Do not use DT coefficients
  thermal: rcar_thermal: Use usleep_range() instead of udelay()
  ...
2020-01-28 16:31:08 -08:00
Linus Torvalds
fb95aae6e6 sound updates for 5.6-rc1
As diffstat shows we've had again a lot of works done for this cycle:
 majority of changes are the continued componentization and code
 refactoring in ASoC, the tree-wide PCM API updates and cleanups
 and SOF updates while a few ASoC driver updates are seen, too.
 
 Here we go, some highlights:
 
 Core:
 - Finally y2038 support landed to ALSA ABI;
   some ioctls have been extended and lots of tricks were applied
 - Applying the new managed PCM buffer API to all drivers;
   the API itself was already merged in 5.5
 - The already deprecated dimension support in ALSA control API is
   dropped completely now
 - Verification of ALSA control elements to catch API misuses
 
 ASoC:
 - Further code refactorings and moving things to the component level
 - Lots of updates and improvements on SOF / Intel drivers;
   now including common HDMI driver and SoundWire support
 - New driver support for Ingenic JZ4770, Mediatek MT6660, Qualcomm
   WCD934x and WSA881x, and Realtek RT700, RT711, RT715, RT1011, RT1015
   and RT1308
 
 HD-audio:
 - Improved ring-buffer communications using waitqueue
 - Drop the superfluous buffer preallocation on x86
 
 Others:
 - Many code cleanups, mostly constifications over the whole tree
 - USB-audio: quirks for MOTU, Corsair Virtuoso, Line6 Helix
 - FireWire: code refactoring for oxfw and dice drivers
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Merge tag 'sound-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "As the diffstat shows we've had again a lot of works done for this
  cycle: the majority of changes are the continued componentization and
  code refactoring in ASoC, the tree-wide PCM API updates and cleanups
  and SOF updates while a few ASoC driver updates are seen, too.

  Here we go, some highlights:

  Core:
   - Finally y2038 support landed to ALSA ABI; some ioctls have been
     extended and lots of tricks were applied
   - Applying the new managed PCM buffer API to all drivers; the API
     itself was already merged in 5.5
   - The already deprecated dimension support in ALSA control API is
     dropped completely now
   - Verification of ALSA control elements to catch API misuses

  ASoC:
   - Further code refactorings and moving things to the component level
   - Lots of updates and improvements on SOF / Intel drivers; now
     including common HDMI driver and SoundWire support
   - New driver support for Ingenic JZ4770, Mediatek MT6660, Qualcomm
     WCD934x and WSA881x, and Realtek RT700, RT711, RT715, RT1011,
     RT1015 and RT1308

  HD-audio:
   - Improved ring-buffer communications using waitqueue
   - Drop the superfluous buffer preallocation on x86

  Others:
   - Many code cleanups, mostly constifications over the whole tree
   - USB-audio: quirks for MOTU, Corsair Virtuoso, Line6 Helix
   - FireWire: code refactoring for oxfw and dice drivers"

* tag 'sound-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (638 commits)
  ALSA: usb-audio: add quirks for Line6 Helix devices fw>=2.82
  ALSA: hda: Add Clevo W65_67SB the power_save blacklist
  ASoC: soc-core: remove null_snd_soc_ops
  ASoC: soc-pcm: add soc_rtd_trigger()
  ASoC: soc-pcm: add soc_rtd_hw_free()
  ASoC: soc-pcm: add soc_rtd_hw_params()
  ASoC: soc-pcm: add soc_rtd_prepare()
  ASoC: soc-pcm: add soc_rtd_shutdown()
  ASoC: soc-pcm: add soc_rtd_startup()
  ASoC: rt1015: add rt1015 amplifier driver
  ASoC: madera: Correct some kernel doc
  ASoC: topology: fix soc_tplg_fe_link_create() - link->dobj initialization order
  ASoC: Intel: skl_hda_dsp_common: Fix global-out-of-bounds bug
  ASoC: madera: Correct DMIC only input hook ups
  ALSA: cs46xx: fix spelling mistake "to" -> "too"
  ALSA: hda - Add docking station support for Lenovo Thinkpad T420s
  ASoC: Add MediaTek MT6660 Speaker Amp Driver
  ASoC: dt-bindings: rt5645: add suppliers
  ASoC: max98090: fix deadlock in max98090_dapm_put_enum_double()
  ASoC: dapm: add snd_soc_dapm_put_enum_double_locked
  ...
2020-01-28 16:26:57 -08:00
Linus Torvalds
bd2463ac7d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:

 1) Add WireGuard

 2) Add HE and TWT support to ath11k driver, from John Crispin.

 3) Add ESP in TCP encapsulation support, from Sabrina Dubroca.

 4) Add variable window congestion control to TIPC, from Jon Maloy.

 5) Add BCM84881 PHY driver, from Russell King.

 6) Start adding netlink support for ethtool operations, from Michal
    Kubecek.

 7) Add XDP drop and TX action support to ena driver, from Sameeh
    Jubran.

 8) Add new ipv4 route notifications so that mlxsw driver does not have
    to handle identical routes itself. From Ido Schimmel.

 9) Add BPF dynamic program extensions, from Alexei Starovoitov.

10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes.

11) Add support for macsec HW offloading, from Antoine Tenart.

12) Add initial support for MPTCP protocol, from Christoph Paasch,
    Matthieu Baerts, Florian Westphal, Peter Krystad, and many others.

13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu
    Cherian, and others.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits)
  net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC
  udp: segment looped gso packets correctly
  netem: change mailing list
  qed: FW 8.42.2.0 debug features
  qed: rt init valid initialization changed
  qed: Debug feature: ilt and mdump
  qed: FW 8.42.2.0 Add fw overlay feature
  qed: FW 8.42.2.0 HSI changes
  qed: FW 8.42.2.0 iscsi/fcoe changes
  qed: Add abstraction for different hsi values per chip
  qed: FW 8.42.2.0 Additional ll2 type
  qed: Use dmae to write to widebus registers in fw_funcs
  qed: FW 8.42.2.0 Parser offsets modified
  qed: FW 8.42.2.0 Queue Manager changes
  qed: FW 8.42.2.0 Expose new registers and change windows
  qed: FW 8.42.2.0 Internal ram offsets modifications
  MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver
  Documentation: net: octeontx2: Add RVU HW and drivers overview
  octeontx2-pf: ethtool RSS config support
  octeontx2-pf: Add basic ethtool support
  ...
2020-01-28 16:02:33 -08:00
Linus Torvalds
a78208e243 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Removed CRYPTO_TFM_RES flags
   - Extended spawn grabbing to all algorithm types
   - Moved hash descsize verification into API code

  Algorithms:
   - Fixed recursive pcrypt dead-lock
   - Added new 32 and 64-bit generic versions of poly1305
   - Added cryptogams implementation of x86/poly1305

  Drivers:
   - Added support for i.MX8M Mini in caam
   - Added support for i.MX8M Nano in caam
   - Added support for i.MX8M Plus in caam
   - Added support for A33 variant of SS in sun4i-ss
   - Added TEE support for Raven Ridge in ccp
   - Added in-kernel API to submit TEE commands in ccp
   - Added AMD-TEE driver
   - Added support for BCM2711 in iproc-rng200
   - Added support for AES256-GCM based ciphers for chtls
   - Added aead support on SEC2 in hisilicon"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (244 commits)
  crypto: arm/chacha - fix build failured when kernel mode NEON is disabled
  crypto: caam - add support for i.MX8M Plus
  crypto: x86/poly1305 - emit does base conversion itself
  crypto: hisilicon - fix spelling mistake "disgest" -> "digest"
  crypto: chacha20poly1305 - add back missing test vectors and test chunking
  crypto: x86/poly1305 - fix .gitignore typo
  tee: fix memory allocation failure checks on drv_data and amdtee
  crypto: ccree - erase unneeded inline funcs
  crypto: ccree - make cc_pm_put_suspend() void
  crypto: ccree - split overloaded usage of irq field
  crypto: ccree - fix PM race condition
  crypto: ccree - fix FDE descriptor sequence
  crypto: ccree - cc_do_send_request() is void func
  crypto: ccree - fix pm wrongful error reporting
  crypto: ccree - turn errors to debug msgs
  crypto: ccree - fix AEAD decrypt auth fail
  crypto: ccree - fix typo in comment
  crypto: ccree - fix typos in error msgs
  crypto: atmel-{aes,sha,tdes} - Retire crypto_platform_data
  crypto: x86/sha - Eliminate casts on asm implementations
  ...
2020-01-28 15:38:56 -08:00
Linus Torvalds
f0d8744143 fscrypt updates for 5.6
- Extend the FS_IOC_ADD_ENCRYPTION_KEY ioctl to allow the raw key to be
   provided via a keyring key.
 
 - Prepare for the new dirhash method (SipHash of plaintext name) that
   will be used by directories that are both encrypted and casefolded.
 
 - Switch to a new format for "no-key names" that prepares for the new
   dirhash method, and also fixes a longstanding bug where multiple
   filenames could map to the same no-key name.
 
 - Allow the crypto algorithms used by fscrypt to be built as loadable
   modules when the fscrypt-capable filesystems are.
 
 - Optimize fscrypt_zeroout_range().
 
 - Various cleanups.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fscrypt updates from Eric Biggers:

 - Extend the FS_IOC_ADD_ENCRYPTION_KEY ioctl to allow the raw key to be
   provided via a keyring key.

 - Prepare for the new dirhash method (SipHash of plaintext name) that
   will be used by directories that are both encrypted and casefolded.

 - Switch to a new format for "no-key names" that prepares for the new
   dirhash method, and also fixes a longstanding bug where multiple
   filenames could map to the same no-key name.

 - Allow the crypto algorithms used by fscrypt to be built as loadable
   modules when the fscrypt-capable filesystems are.

 - Optimize fscrypt_zeroout_range().

 - Various cleanups.

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: (26 commits)
  fscrypt: improve format of no-key names
  ubifs: allow both hash and disk name to be provided in no-key names
  ubifs: don't trigger assertion on invalid no-key filename
  fscrypt: clarify what is meant by a per-file key
  fscrypt: derive dirhash key for casefolded directories
  fscrypt: don't allow v1 policies with casefolding
  fscrypt: add "fscrypt_" prefix to fname_encrypt()
  fscrypt: don't print name of busy file when removing key
  ubifs: use IS_ENCRYPTED() instead of ubifs_crypt_is_encrypted()
  fscrypt: document gfp_flags for bounce page allocation
  fscrypt: optimize fscrypt_zeroout_range()
  fscrypt: remove redundant bi_status check
  fscrypt: Allow modular crypto algorithms
  fscrypt: include <linux/ioctl.h> in UAPI header
  fscrypt: don't check for ENOKEY from fscrypt_get_encryption_info()
  fscrypt: remove fscrypt_is_direct_key_policy()
  fscrypt: move fscrypt_valid_enc_modes() to policy.c
  fscrypt: check for appropriate use of DIRECT_KEY flag earlier
  fscrypt: split up fscrypt_supported_policy() by policy version
  fscrypt: introduce fscrypt_needs_contents_encryption()
  ...
2020-01-28 15:22:21 -08:00
Alexandre Belloni
f457192407 dt-bindings: rtc: at91rm9200: document clocks property
The clocks property is mandatory, document it.

Reported-by: Rob Herring <robh+dt@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200128204200.22201-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-01-28 22:48:34 +01:00
Michael Walle
8798e8fb08 dt-bindings: clock: document the fsl-sai driver
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lkml.kernel.org/r/20200102231101.11834-2-michael@walle.cc
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-01-28 13:26:48 -08:00
Mauro Carvalho Chehab
77ce1a47eb docs: filesystems: add overlayfs to index.rst
While the document is there, it is currently missing at the
index file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/3b8e7783b1fcc71e4f94af5ea8e5fa264392f8c4.1580193653.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-01-28 13:41:57 -07:00
Mauro Carvalho Chehab
1edca3c64e docs: usb: remove some broken references
It seems that some files were removed from USB documentation.

Update the links accordingly.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/00008303fde6b4e06d027d3b76ae7032614a7030.1580193653.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-01-28 13:41:22 -07:00
Linus Torvalds
6da49d1abd Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
 "Misc cleanups all around the map"

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/CPU/AMD: Remove amd_get_topology_early()
  x86/tsc: Remove redundant assignment
  x86/crash: Use resource_size()
  x86/cpu: Add a missing prototype for arch_smt_update()
  x86/nospec: Remove unused RSB_FILL_LOOPS
  x86/vdso: Provide missing include file
  x86/Kconfig: Correct spelling and punctuation
  Documentation/x86/boot: Fix typo
  x86/boot: Fix a comment's incorrect file reference
  x86/process: Remove set but not used variables prev and next
  x86/Kconfig: Fix Kconfig indentation
2020-01-28 12:11:23 -08:00
Dafna Hirschfeld
7914d5c626 dt-bindings: fix warnings in validation of qcom,gcc.yaml
The last example in qcom,gcc.yaml set 'sleep' as the second
value of 'clock-names'. According to the schema is should
be 'sleep_clk'. Fix the example to conform the schema.
This fixes a warning when validating the schema:
"clock-names:  ... is not valid under any of the given schemas"

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Link: https://lkml.kernel.org/r/20200122135741.12123-1-dafna.hirschfeld@collabora.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-01-28 10:26:27 -08:00
Dafna Hirschfeld
957d100926 dt-binding: fix compilation error of the example in qcom,gcc.yaml
Running `make dt_binging_check`, gives the error:

DTC     Documentation/devicetree/bindings/clock/qcom,gcc.example.dt.yaml
Error: Documentation/devicetree/bindings/clock/qcom,gcc.example.dts:111.28-29 syntax error
FATAL ERROR: Unable to parse input tree

This is because the last example uses the macro RPM_SMD_XO_CLK_SRC which
is defined in qcom,rpmcc.h but the include of this header is missing.
Add the include to fix the error.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Link: https://lkml.kernel.org/r/20200122134639.11735-1-dafna.hirschfeld@collabora.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-01-28 10:26:20 -08:00
Linus Torvalds
634cd4b6af Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Cleanup of the GOP [graphics output] handling code in the EFI stub

   - Complete refactoring of the mixed mode handling in the x86 EFI stub

   - Overhaul of the x86 EFI boot/runtime code

   - Increase robustness for mixed mode code

   - Add the ability to disable DMA at the root port level in the EFI
     stub

   - Get rid of RWX mappings in the EFI memory map and page tables,
     where possible

   - Move the support code for the old EFI memory mapping style into its
     only user, the SGI UV1+ support code.

   - plus misc fixes, updates, smaller cleanups.

  ... and due to interactions with the RWX changes, another round of PAT
  cleanups make a guest appearance via the EFI tree - with no side
  effects intended"

* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits)
  efi/x86: Disable instrumentation in the EFI runtime handling code
  efi/libstub/x86: Fix EFI server boot failure
  efi/x86: Disallow efi=old_map in mixed mode
  x86/boot/compressed: Relax sed symbol type regex for LLVM ld.lld
  efi/x86: avoid KASAN false positives when accessing the 1: 1 mapping
  efi: Fix handling of multiple efi_fake_mem= entries
  efi: Fix efi_memmap_alloc() leaks
  efi: Add tracking for dynamically allocated memmaps
  efi: Add a flags parameter to efi_memory_map
  efi: Fix comment for efi_mem_type() wrt absent physical addresses
  efi/arm: Defer probe of PCIe backed efifb on DT systems
  efi/x86: Limit EFI old memory map to SGI UV machines
  efi/x86: Avoid RWX mappings for all of DRAM
  efi/x86: Don't map the entire kernel text RW for mixed mode
  x86/mm: Fix NX bit clearing issue in kernel_map_pages_in_pgd
  efi/libstub/x86: Fix unused-variable warning
  efi/libstub/x86: Use mandatory 16-byte stack alignment in mixed mode
  efi/libstub/x86: Use const attribute for efi_is_64bit()
  efi: Allow disabling PCI busmastering on bridges during boot
  efi/x86: Allow translating 64-bit arguments for mixed mode calls
  ...
2020-01-28 09:03:40 -08:00
Linus Torvalds
d99391ec2b Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 "The RCU changes in this cycle were:
   - Expedited grace-period updates
   - kfree_rcu() updates
   - RCU list updates
   - Preemptible RCU updates
   - Torture-test updates
   - Miscellaneous fixes
   - Documentation updates"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (69 commits)
  rcu: Remove unused stop-machine #include
  powerpc: Remove comment about read_barrier_depends()
  .mailmap: Add entries for old paulmck@kernel.org addresses
  srcu: Apply *_ONCE() to ->srcu_last_gp_end
  rcu: Switch force_qs_rnp() to for_each_leaf_node_cpu_mask()
  rcu: Move rcu_{expedited,normal} definitions into rcupdate.h
  rcu: Move gp_state_names[] and gp_state_getname() to tree_stall.h
  rcu: Remove the declaration of call_rcu() in tree.h
  rcu: Fix tracepoint tracking RCU CPU kthread utilization
  rcu: Fix harmless omission of "CONFIG_" from #if condition
  rcu: Avoid tick_dep_set_cpu() misordering
  rcu: Provide wrappers for uses of ->rcu_read_lock_nesting
  rcu: Use READ_ONCE() for ->expmask in rcu_read_unlock_special()
  rcu: Clear ->rcu_read_unlock_special only once
  rcu: Clear .exp_hint only when deferred quiescent state has been reported
  rcu: Rename some instance of CONFIG_PREEMPTION to CONFIG_PREEMPT_RCU
  rcu: Remove kfree_call_rcu_nobatch()
  rcu: Remove kfree_rcu() special casing and lazy-callback handling
  rcu: Add support for debug_objects debugging for kfree_rcu()
  rcu: Add multiple in-flight batches of kfree_rcu() work
  ...
2020-01-28 08:46:13 -08:00
Vinod Koul
08607e8319 dmaengine: doc: Properly indent metadata title
The newly added metadata documentation title was not properly indented
resulting in doc build break:

  Sphinx parallel build error:
  docutils.utils.SystemMessage: /linux/Documentation/driver-api/dmaengine/client.rst:155: (SEVERE/4) Unexpected section title.

  Optional: per descriptor metadata
  ---------------------------------

Fix this by doing the right indent

Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Fixes: 7d083ae983 ("dmaengine: doc: Add sections for per descriptor metadata support")
Link: https://lore.kernel.org/r/20200128125032.1650816-1-vkoul@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-01-28 18:33:39 +05:30
Linus Torvalds
3d3b44a61a The interrupt departement provides:
- A mechanism to shield isolated tasks from managed interrupts:
 
    The affinity of managed interrupts is completely controlled by the
    kernel and user space has no influence on them. The reason is that
    the automatically assigned affinity correlates to the multi-queue
    CPU handling of block devices.
 
    If the generated affinity mask spaws both housekeeping and isolated CPUs
    the interrupt could be routed to an isolated CPU which would then be
    disturbed by I/O submitted by a housekeeping CPU.
 
    The new mechamism ensures that as long as one housekeeping CPU is online
    in the assigned affinity mask the interrupt is routed to a housekeeping
    CPU.
 
    If there is no online housekeeping CPU in the affinity mask, then the
    interrupt is routed to an isolated CPU to keep the device queue intact,
    but unless the isolated CPU submits I/O by itself these interrupts are
    not raised.
 
  - A small addon to the device tree irqdomain core code to avoid
    duplication in irq chip drivers
 
  - Conversion of the SiFive PLIC to hierarchical domains
 
  - The usual pile of new irq chip drivers: SiFive GPIO, Aspeed SCI, NXP
    INTMUX, Meson A1 GPIO
 
  - The first cut of support for the new ARM GICv4.1
 
  - The usual pile of fixes and improvements in core and driver code
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Merge tag 'irq-core-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "The interrupt departement provides:

   - A mechanism to shield isolated tasks from managed interrupts:

     The affinity of managed interrupts is completely controlled by the
     kernel and user space has no influence on them. The reason is that
     the automatically assigned affinity correlates to the multi-queue
     CPU handling of block devices.

     If the generated affinity mask spaws both housekeeping and isolated
     CPUs the interrupt could be routed to an isolated CPU which would
     then be disturbed by I/O submitted by a housekeeping CPU.

     The new mechamism ensures that as long as one housekeeping CPU is
     online in the assigned affinity mask the interrupt is routed to a
     housekeeping CPU.

     If there is no online housekeeping CPU in the affinity mask, then
     the interrupt is routed to an isolated CPU to keep the device queue
     intact, but unless the isolated CPU submits I/O by itself these
     interrupts are not raised.

   - A small addon to the device tree irqdomain core code to avoid
     duplication in irq chip drivers

   - Conversion of the SiFive PLIC to hierarchical domains

   - The usual pile of new irq chip drivers: SiFive GPIO, Aspeed SCI,
     NXP INTMUX, Meson A1 GPIO

   - The first cut of support for the new ARM GICv4.1

   - The usual pile of fixes and improvements in core and driver code"

* tag 'irq-core-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
  genirq, sched/isolation: Isolate from handling managed interrupts
  irqchip/gic-v4.1: Allow direct invalidation of VLPIs
  irqchip/gic-v4.1: Suppress per-VLPI doorbell
  irqchip/gic-v4.1: Add VPE INVALL callback
  irqchip/gic-v4.1: Add VPE eviction callback
  irqchip/gic-v4.1: Add VPE residency callback
  irqchip/gic-v4.1: Add mask/unmask doorbell callbacks
  irqchip/gic-v4.1: Plumb skeletal VPE irqchip
  irqchip/gic-v4.1: Implement the v4.1 flavour of VMOVP
  irqchip/gic-v4.1: Don't use the VPE proxy if RVPEID is set
  irqchip/gic-v4.1: Implement the v4.1 flavour of VMAPP
  irqchip/gic-v4.1: VPE table (aka GICR_VPROPBASER) allocation
  irqchip/gic-v3: Add GICv4.1 VPEID size discovery
  irqchip/gic-v3: Detect GICv4.1 supporting RVPEID
  irqchip/gic-v3-its: Fix get_vlpi_map() breakage with doorbells
  irqdomain: Fix a memory leak in irq_domain_push_irq()
  irqchip: Add NXP INTMUX interrupt multiplexer support
  dt-bindings: interrupt-controller: Add binding for NXP INTMUX interrupt multiplexer
  irqchip: Define EXYNOS_IRQ_COMBINER
  irqchip/meson-gpio: Add support for meson a1 SoCs
  ...
2020-01-27 17:22:21 -08:00
Linus Torvalds
e279160f49 The timekeeping and timers departement provides:
- Time namespace support:
 
     If a container migrates from one host to another then it expects that
     clocks based on MONOTONIC and BOOTTIME are not subject to
     disruption. Due to different boot time and non-suspended runtime these
     clocks can differ significantly on two hosts, in the worst case time
     goes backwards which is a violation of the POSIX requirements.
 
     The time namespace addresses this problem. It allows to set offsets for
     clock MONOTONIC and BOOTTIME once after creation and before tasks are
     associated with the namespace. These offsets are taken into account by
     timers and timekeeping including the VDSO.
 
     Offsets for wall clock based clocks (REALTIME/TAI) are not provided by
     this mechanism. While in theory possible, the overhead and code
     complexity would be immense and not justified by the esoteric potential
     use cases which were discussed at Plumbers '18.
 
     The overhead for tasks in the root namespace (host time offsets = 0) is
     in the noise and great effort was made to ensure that especially in the
     VDSO. If time namespace is disabled in the kernel configuration the
     code is compiled out.
 
     Kudos to Andrei Vagin and Dmitry Sofanov who implemented this feature
     and kept on for more than a year addressing review comments, finding
     better solutions. A pleasant experience.
 
   - Overhaul of the alarmtimer device dependency handling to ensure that
     the init/suspend/resume ordering is correct.
 
   - A new clocksource/event driver for Microchip PIT64
 
   - Suspend/resume support for the Hyper-V clocksource
 
   - The usual pile of fixes, updates and improvements mostly in the
     driver code.
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Merge tag 'timers-core-2020-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "The timekeeping and timers departement provides:

   - Time namespace support:

     If a container migrates from one host to another then it expects
     that clocks based on MONOTONIC and BOOTTIME are not subject to
     disruption. Due to different boot time and non-suspended runtime
     these clocks can differ significantly on two hosts, in the worst
     case time goes backwards which is a violation of the POSIX
     requirements.

     The time namespace addresses this problem. It allows to set offsets
     for clock MONOTONIC and BOOTTIME once after creation and before
     tasks are associated with the namespace. These offsets are taken
     into account by timers and timekeeping including the VDSO.

     Offsets for wall clock based clocks (REALTIME/TAI) are not provided
     by this mechanism. While in theory possible, the overhead and code
     complexity would be immense and not justified by the esoteric
     potential use cases which were discussed at Plumbers '18.

     The overhead for tasks in the root namespace (ie where host time
     offsets = 0) is in the noise and great effort was made to ensure
     that especially in the VDSO. If time namespace is disabled in the
     kernel configuration the code is compiled out.

     Kudos to Andrei Vagin and Dmitry Sofanov who implemented this
     feature and kept on for more than a year addressing review
     comments, finding better solutions. A pleasant experience.

   - Overhaul of the alarmtimer device dependency handling to ensure
     that the init/suspend/resume ordering is correct.

   - A new clocksource/event driver for Microchip PIT64

   - Suspend/resume support for the Hyper-V clocksource

   - The usual pile of fixes, updates and improvements mostly in the
     driver code"

* tag 'timers-core-2020-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
  alarmtimer: Make alarmtimer_get_rtcdev() a stub when CONFIG_RTC_CLASS=n
  alarmtimer: Use wakeup source from alarmtimer platform device
  alarmtimer: Make alarmtimer platform device child of RTC device
  alarmtimer: Update alarmtimer_get_rtcdev() docs to reflect reality
  hrtimer: Add missing sparse annotation for __run_timer()
  lib/vdso: Only read hrtimer_res when needed in __cvdso_clock_getres()
  MIPS: vdso: Define BUILD_VDSO32 when building a 32bit kernel
  clocksource/drivers/hyper-v: Set TSC clocksource as default w/ InvariantTSC
  clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources
  clocksource/drivers/timer-microchip-pit64b: Fix sparse warning
  clocksource/drivers/exynos_mct: Rename Exynos to lowercase
  clocksource/drivers/timer-ti-dm: Fix uninitialized pointer access
  clocksource/drivers/timer-ti-dm: Switch to platform_get_irq
  clocksource/drivers/timer-ti-dm: Convert to devm_platform_ioremap_resource
  clocksource/drivers/em_sti: Fix variable declaration in em_sti_probe
  clocksource/drivers/em_sti: Convert to devm_platform_ioremap_resource
  clocksource/drivers/bcm2835_timer: Fix memory leak of timer
  clocksource/drivers/cadence-ttc: Use ttc driver as platform driver
  clocksource/drivers/timer-microchip-pit64b: Add Microchip PIT64B support
  clocksource/drivers/hyper-v: Reserve PAGE_SIZE space for tsc page
  ...
2020-01-27 16:47:05 -08:00
Linus Torvalds
b1dba24731 selinux/stable-5.6 PR 20200127
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Merge tag 'selinux-pr-20200127' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull SELinux update from Paul Moore:
 "This is one of the bigger SELinux pull requests in recent years with
  28 patches. Everything is passing our test suite and the highlights
  are below:

   - Mark CONFIG_SECURITY_SELINUX_DISABLE as deprecated. We're some time
     away from actually attempting to remove this in the kernel, but the
     only distro we know that still uses it (Fedora) is working on
     moving away from this so we want to at least let people know we are
     planning to remove it.

   - Reorder the SELinux hooks to help prevent bad things when SELinux
     is disabled at runtime. The proper fix is to remove the
     CONFIG_SECURITY_SELINUX_DISABLE functionality (see above) and just
     take care of it at boot time (e.g. "selinux=0").

   - Add SELinux controls for the kernel lockdown functionality,
     introducing a new SELinux class/permissions: "lockdown { integrity
     confidentiality }".

   - Add a SELinux control for move_mount(2) that reuses the "file {
     mounton }" permission.

   - Improvements to the SELinux security label data store lookup
     functions to speed up translations between our internal label
     representations and the visible string labels (both directions).

   - Revisit a previous fix related to SELinux inode auditing and
     permission caching and do it correctly this time.

   - Fix the SELinux access decision cache to cleanup properly on error.
     In some extreme cases this could limit the cache size and result in
     a decrease in performance.

   - Enable SELinux per-file labeling for binderfs.

   - The SELinux initialized and disabled flags were wrapped with
     accessors to ensure they are accessed correctly.

   - Mark several key SELinux structures with __randomize_layout.

   - Changes to the LSM build configuration to only build
     security/lsm_audit.c when needed.

   - Changes to the SELinux build configuration to only build the IB
     object cache when CONFIG_SECURITY_INFINIBAND is enabled.

   - Move a number of single-caller functions into their callers.

   - Documentation fixes (/selinux -> /sys/fs/selinux).

   - A handful of cleanup patches that aren't worth mentioning on their
     own, the individual descriptions have plenty of detail"

* tag 'selinux-pr-20200127' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: (28 commits)
  selinux: fix regression introduced by move_mount(2) syscall
  selinux: do not allocate ancillary buffer on first load
  selinux: remove redundant allocation and helper functions
  selinux: remove redundant selinux_nlmsg_perm
  selinux: fix wrong buffer types in policydb.c
  selinux: reorder hooks to make runtime disable less broken
  selinux: treat atomic flags more carefully
  selinux: make default_noexec read-only after init
  selinux: move ibpkeys code under CONFIG_SECURITY_INFINIBAND.
  selinux: remove redundant msg_msg_alloc_security
  Documentation,selinux: fix references to old selinuxfs mount point
  selinux: deprecate disabling SELinux and runtime
  selinux: allow per-file labelling for binderfs
  selinuxfs: use scnprintf to get real length for inode
  selinux: remove set but not used variable 'sidtab'
  selinux: ensure the policy has been loaded before reading the sidtab stats
  selinux: ensure we cleanup the internal AVC counters on error in avc_update()
  selinux: randomize layout of key structures
  selinux: clean up selinux_enabled/disabled/enforcing_boot
  selinux: remove unnecessary selinux cred request
  ...
2020-01-27 15:38:15 -08:00
Linus Torvalds
03aa8c8cfa Merge branch 'for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:

 - cgroup2 interface for hugetlb controller. I think this was the last
   remaining bit which was missing from cgroup2

 - fixes for race and a spurious warning in threaded cgroup handling

 - other minor changes

* 'for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  iocost: Fix iocost_monitor.py due to helper type mismatch
  cgroup: Prevent double killing of css when enabling threaded cgroup
  cgroup: fix function name in comment
  mm: hugetlb controller for cgroups v2
2020-01-27 15:18:25 -08:00
Benjamin Gaignard
f61023dfb6 dt-bindings: touchscreen: Convert Goodix touchscreen to json-schema
Convert the Goodix binding to DT schema format using json-schema

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200108091118.5130-3-benjamin.gaignard@st.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-27 14:26:10 -08:00
Benjamin Gaignard
1d6204e2f5 dt-bindings: touchscreen: Add touchscreen schema
Add touchscreen schema for common properties

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200108091118.5130-2-benjamin.gaignard@st.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-27 14:26:09 -08:00
Linus Torvalds
6a1000bd27 ioremap changes for 5.6
- remove ioremap_nocache given that is is equivalent to
    ioremap everywhere
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Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap

Pull ioremap updates from Christoph Hellwig:
 "Remove the ioremap_nocache API (plus wrappers) that are always
  identical to ioremap"

* tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap:
  remove ioremap_nocache and devm_ioremap_nocache
  MIPS: define ioremap_nocache to ioremap
2020-01-27 13:03:00 -08:00
Linus Torvalds
9dd70e2880 for-5.6/libata-2020-01-27
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Merge tag 'for-5.6/libata-2020-01-27' of git://git.kernel.dk/linux-block

Pull libata updates from Jens Axboe:
 "As usual pretty quiet, mostly trivial fixes (or dead code removal),
  outside of various fixes for ahci_bcrm"

* tag 'for-5.6/libata-2020-01-27' of git://git.kernel.dk/linux-block:
  ata/acard_ahci: remove unused variable n_elem
  ata: pata_macio: fix comparing pointer to 0
  ata: ahci_brcm: BCM7216 reset is self de-asserting
  ata: ahci_brcm: Perform reset after obtaining resources
  ata: brcm: fix reset controller API usage
  ata: brcm: mark PM functions as __maybe_unused
  ata: ahci_brcm: Support BCM7216 reset controller name
  dt-bindings: ata: Document BCM7216 AHCI controller compatible
  ata: ahci_brcm: Add a shutdown callback
  ata: ahci_brcm: Manage reset line during suspend/resume
2020-01-27 12:57:17 -08:00
Linus Torvalds
55816dc1a5 ACPI updates for 5.6-rc1
- Update the ACPICA code in the kernel to upstream revision
    20200110 including:
 
    * Update of copyright notices to 2020 (Bob Moore).
 
    * Dispatcher fix to always generate buffer objects for the ASL
      create_field() operator (Maximilian Luz).
 
    * Debugger cleanup (Colin Ian King).
 
    * Disassembler change to create buffer fields in
      ACPI_PARSE_LOAD_PASS1 (Erik Kaneda).
 
    * UNIX line ending support for non-windows builds in acpisrc
      (Erik Kaneda).
 
  - Update the list of ACPICA maintainers (Rafael Wysocki).
 
  - Add Intel Tiger Lake ACPI device IDs to the ACPI DPTF, ACPI fan,
    int340x_thermal and intel-hid drivers (Gayatri Kammela).
 
  - Make the ACPI fan driver create additional sysfs attributes to
    expose power states information for fans (Srinivas Pandruvada).
 
  - Fix up the ACPI battery driver to deal with unexpected battery
    capacity information in a better way (Hans de Goede).
 
  - Add ACPI backlight quirks for Lenovo E41-25/45 and MSI MS-7721
    boards (Aaron Ma, Hans de Goede).
 
  - Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch
    to the ACPI button driver (Jason Ekstrand).
 
  - Drop TIMER_DEFERRABLE from the GHES polling mode timer function
    flags to make it run precisely at the configured time (Bhaskar
    Upadhaya).
 
  - Fix race condition related to the reference counting of query
    handlers in the ACPI EC driver (Rafael Wysocki).
 
  - Fix ACPI tools build issue (Zhengyuan Liu).
 
  - Replace dma_request_slave_channel() with dma_request_chan() in the
    firmware guide documentation for ACPI (Peter Ujfalusi).
 
  - Fix typo in a comment and clean up function parameter data type
    inconsistencies (Kacper Piwiński, Tian Tao).
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Merge tag 'acpi-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to the most recent upstream
  revision (20200110), add new hardware support to a handful of ACPI
  drivers, make the ACPI fan driver expose power states information for
  fans, add some more quirks, fix bugs and clean up assorted things.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20200110
     including:
      - Update of copyright notices to 2020 (Bob Moore).
      - Dispatcher fix to always generate buffer objects for the ASL
        create_field() operator (Maximilian Luz).
      - Debugger cleanup (Colin Ian King).
      - Disassembler change to create buffer fields in
        ACPI_PARSE_LOAD_PASS1 (Erik Kaneda).
      - UNIX line ending support for non-windows builds in acpisrc (Erik
        Kaneda).

   - Update the list of ACPICA maintainers (Rafael Wysocki).

   - Add Intel Tiger Lake ACPI device IDs to the ACPI DPTF, ACPI fan,
     int340x_thermal and intel-hid drivers (Gayatri Kammela).

   - Make the ACPI fan driver create additional sysfs attributes to
     expose power states information for fans (Srinivas Pandruvada).

   - Fix up the ACPI battery driver to deal with unexpected battery
     capacity information in a better way (Hans de Goede).

   - Add ACPI backlight quirks for Lenovo E41-25/45 and MSI MS-7721
     boards (Aaron Ma, Hans de Goede).

   - Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch to
     the ACPI button driver (Jason Ekstrand).

   - Drop TIMER_DEFERRABLE from the GHES polling mode timer function
     flags to make it run precisely at the configured time (Bhaskar
     Upadhaya).

   - Fix race condition related to the reference counting of query
     handlers in the ACPI EC driver (Rafael Wysocki).

   - Fix ACPI tools build issue (Zhengyuan Liu).

   - Replace dma_request_slave_channel() with dma_request_chan() in the
     firmware guide documentation for ACPI (Peter Ujfalusi).

   - Fix typo in a comment and clean up function parameter data type
     inconsistencies (Kacper Piwiński, Tian Tao)"

* tag 'acpi-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (25 commits)
  ACPICA: Update version to 20200110
  ACPICA: All acpica: Update copyrights to 2020 Including tool signons.
  apei/ghes: Do not delay GHES polling
  ACPI: button: Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch
  ACPI: PPTT: Consistently use unsigned int as parameter type
  ACPI: EC: Reference count query handlers under lock
  ACPICA: Update the list of maintainers
  ACPICA: Update version to 20191213
  ACPICA: Dispatcher: always generate buffer objects for ASL create_field() operator
  ACPICA: acpisrc: add unix line ending support for non-windows build
  ACPICA: Disassembler: create buffer fields in ACPI_PARSE_LOAD_PASS1
  ACPICA: debugger: fix spelling mistake "adress" -> "address"
  ACPI: video: Do not export a non working backlight interface on MSI MS-7721 boards
  docs: firmware-guide: ACPI: Replace dma_request_slave_channel() with dma_request_chan()
  thermal: int340x_thermal: Add Tiger Lake ACPI device IDs
  platform/x86: intel-hid: Add Tiger Lake ACPI device ID
  ACPI: fan: Add Tiger Lake ACPI device ID
  ACPI: DPTF: Add Tiger Lake ACPI device IDs
  ACPI: fan: Expose fan performance state information
  tools/power/acpi: fix compilation error
  ...
2020-01-27 11:48:47 -08:00
Linus Torvalds
6d277aca48 Power management updates for 5.6-rc1
- Update the ACPI processor driver in order to export
    acpi_processor_evaluate_cst() to the code outside of it, add
    ACPI support to the intel_idle driver based on that and clean
    up that driver somewhat (Rafael Wysocki).
 
  - Add an admin guide document for the intel_idle driver (Rafael
    Wysocki).
 
  - Clean up cpuidle core and drivers, enable compilation testing
    for some of them (Benjamin Gaignard, Krzysztof Kozlowski, Rafael
    Wysocki, Yangtao Li).
 
  - Fix reference counting of OPP (operating performance points) table
    structures (Viresh Kumar).
 
  - Add support for CPR (Core Power Reduction) to the AVS (Adaptive
    Voltage Scaling) subsystem (Niklas Cassel, Colin Ian King,
    YueHaibing).
 
  - Add support for TigerLake Mobile and JasperLake to the Intel RAPL
    power capping driver (Zhang Rui).
 
  - Update cpufreq drivers:
 
    * Add i.MX8MP support to imx-cpufreq-dt (Anson Huang).
 
    * Fix usage of a macro in loongson2_cpufreq (Alexandre Oliva).
 
    * Fix cpufreq policy reference counting issues in s3c and
      brcmstb-avs (chenqiwu).
 
    * Fix ACPI table reference counting issue and HiSilicon quirk
      handling in the CPPC driver (Hanjun Guo).
 
    * Clean up spelling mistake in intel_pstate (Harry Pan).
 
    * Convert the kirkwood and tegra186 drivers to using
      devm_platform_ioremap_resource() (Yangtao Li).
 
  - Update devfreq core:
 
    * Add 'name' sysfs attribute for devfreq devices (Chanwoo Choi).
 
    * Clean up the handing of transition statistics and allow them
      to be reset by writing 0 to the 'trans_stat' devfreq device
      attribute in sysfs (Kamil Konieczny).
 
    * Add 'devfreq_summary' to debugfs (Chanwoo Choi).
 
    * Clean up kerneldoc comments and Kconfig indentation (Krzysztof
      Kozlowski, Randy Dunlap).
 
  - Update devfreq drivers:
 
    * Add dynamic scaling for the imx8m DDR controller and clean up
      imx8m-ddrc (Leonard Crestez, YueHaibing).
 
    * Fix DT node reference counting and nitialization error code path
      in rk3399_dmc and add COMPILE_TEST and HAVE_ARM_SMCCC dependency
      for it (Chanwoo Choi, Yangtao Li).
 
    * Fix DT node reference counting in rockchip-dfi and make it use
      devm_platform_ioremap_resource() (Yangtao Li).
 
    * Fix excessive stack usage in exynos-ppmu (Arnd Bergmann).
 
    * Fix initialization error code paths in exynos-bus (Yangtao Li).
 
    * Clean up exynos-bus and exynos somewhat (Artur Świgoń, Krzysztof
      Kozlowski).
 
  - Add tracepoints for tracking usage_count updates unrelated to
    status changes in PM-runtime (Michał Mirosław).
 
  - Add sysfs attribute to control the "sync on suspend" behavior
    during system-wide suspend (Jonas Meurer).
 
  - Switch system-wide suspend tests over to 64-bit time (Alexandre
    Belloni).
 
  - Make wakeup sources statistics in debugfs cover deleted ones which
    used to be the case some time ago (zhuguangqing).
 
  - Clean up computations carried out during hibernation, update
    messages related to hibernation and fix a spelling mistake in one
    of them (Wen Yang, Luigi Semenzato, Colin Ian King).
 
  - Add mailmap entry for maintainer e-mail address that has not been
    functional for several years (Rafael Wysocki).
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Merge tag 'pm-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add ACPI support to the intel_idle driver along with an admin
  guide document for it, add support for CPR (Core Power Reduction) to
  the AVS (Adaptive Voltage Scaling) subsystem, add new hardware support
  in a few places, add some new sysfs attributes, debugfs files and
  tracepoints, fix bugs and clean up a bunch of things all over.

  Specifics:

   - Update the ACPI processor driver in order to export
     acpi_processor_evaluate_cst() to the code outside of it, add ACPI
     support to the intel_idle driver based on that and clean up that
     driver somewhat (Rafael Wysocki).

   - Add an admin guide document for the intel_idle driver (Rafael
     Wysocki).

   - Clean up cpuidle core and drivers, enable compilation testing for
     some of them (Benjamin Gaignard, Krzysztof Kozlowski, Rafael
     Wysocki, Yangtao Li).

   - Fix reference counting of OPP (operating performance points) table
     structures (Viresh Kumar).

   - Add support for CPR (Core Power Reduction) to the AVS (Adaptive
     Voltage Scaling) subsystem (Niklas Cassel, Colin Ian King,
     YueHaibing).

   - Add support for TigerLake Mobile and JasperLake to the Intel RAPL
     power capping driver (Zhang Rui).

   - Update cpufreq drivers:
      - Add i.MX8MP support to imx-cpufreq-dt (Anson Huang).
      - Fix usage of a macro in loongson2_cpufreq (Alexandre Oliva).
      - Fix cpufreq policy reference counting issues in s3c and
        brcmstb-avs (chenqiwu).
      - Fix ACPI table reference counting issue and HiSilicon quirk
        handling in the CPPC driver (Hanjun Guo).
      - Clean up spelling mistake in intel_pstate (Harry Pan).
      - Convert the kirkwood and tegra186 drivers to using
        devm_platform_ioremap_resource() (Yangtao Li).

   - Update devfreq core:
      - Add 'name' sysfs attribute for devfreq devices (Chanwoo Choi).
      - Clean up the handing of transition statistics and allow them to
        be reset by writing 0 to the 'trans_stat' devfreq device
        attribute in sysfs (Kamil Konieczny).
      - Add 'devfreq_summary' to debugfs (Chanwoo Choi).
      - Clean up kerneldoc comments and Kconfig indentation (Krzysztof
        Kozlowski, Randy Dunlap).

   - Update devfreq drivers:
      - Add dynamic scaling for the imx8m DDR controller and clean up
        imx8m-ddrc (Leonard Crestez, YueHaibing).
      - Fix DT node reference counting and nitialization error code path
        in rk3399_dmc and add COMPILE_TEST and HAVE_ARM_SMCCC dependency
        for it (Chanwoo Choi, Yangtao Li).
      - Fix DT node reference counting in rockchip-dfi and make it use
        devm_platform_ioremap_resource() (Yangtao Li).
      - Fix excessive stack usage in exynos-ppmu (Arnd Bergmann).
      - Fix initialization error code paths in exynos-bus (Yangtao Li).
      - Clean up exynos-bus and exynos somewhat (Artur Świgoń, Krzysztof
        Kozlowski).

   - Add tracepoints for tracking usage_count updates unrelated to
     status changes in PM-runtime (Michał Mirosław).

   - Add sysfs attribute to control the "sync on suspend" behavior
     during system-wide suspend (Jonas Meurer).

   - Switch system-wide suspend tests over to 64-bit time (Alexandre
     Belloni).

   - Make wakeup sources statistics in debugfs cover deleted ones which
     used to be the case some time ago (zhuguangqing).

   - Clean up computations carried out during hibernation, update
     messages related to hibernation and fix a spelling mistake in one
     of them (Wen Yang, Luigi Semenzato, Colin Ian King).

   - Add mailmap entry for maintainer e-mail address that has not been
     functional for several years (Rafael Wysocki)"

* tag 'pm-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (83 commits)
  cpufreq: loongson2_cpufreq: adjust cpufreq uses of LOONGSON_CHIPCFG
  intel_idle: Clean up irtl_2_usec()
  intel_idle: Move 3 functions closer to their callers
  intel_idle: Annotate initialization code and data structures
  intel_idle: Move and clean up intel_idle_cpuidle_devices_uninit()
  intel_idle: Rearrange intel_idle_cpuidle_driver_init()
  intel_idle: Clean up NULL pointer check in intel_idle_init()
  intel_idle: Fold intel_idle_probe() into intel_idle_init()
  intel_idle: Eliminate __setup_broadcast_timer()
  cpuidle: fix cpuidle_find_deepest_state() kerneldoc warnings
  cpuidle: sysfs: fix warnings when compiling with W=1
  cpuidle: coupled: fix warnings when compiling with W=1
  cpufreq: brcmstb-avs: fix imbalance of cpufreq policy refcount
  PM: suspend: Add sysfs attribute to control the "sync on suspend" behavior
  PM / devfreq: Add debugfs support with devfreq_summary file
  Documentation: admin-guide: PM: Add intel_idle document
  cpuidle: arm: Enable compile testing for some of drivers
  PM-runtime: add tracepoints for usage_count changes
  cpufreq: intel_pstate: fix spelling mistake: "Whethet" -> "Whether"
  PM: hibernate: fix spelling mistake "shapshot" -> "snapshot"
  ...
2020-01-27 11:23:54 -08:00
Linus Torvalds
aae1464f46 regulator: Updates for v5.6
Hardly anything going on in the core this time around with the regulator
 API and pretty quiet on the driver front:
 
  - An API for comparing regulators, useful for devices that need to
    check if supply voltages exactly match rather than just nominally
    match.
  - Conversion of several DT bindings to YAML format.
  - Conversion of I2C drivers to probe_new().
  - New drivers for Monolithic MPQ7920 and MP8859, and Rohm BD71828.
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Merge tag 'regulator-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "Hardly anything going on in the core this time around with the
  regulator API and pretty quiet on the driver front:

   - An API for comparing regulators, useful for devices that need to
     check if supply voltages exactly match rather than just nominally
     match.

   - Conversion of several DT bindings to YAML format.

   - Conversion of I2C drivers to probe_new().

   - New drivers for Monolithic MPQ7920 and MP8859, and Rohm BD71828"

* tag 'regulator-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (34 commits)
  dt-bindings: regulator: add document bindings for mpq7920
  regulator: core: Fix exported symbols to the exported GPL version
  regulator: mpq7920: Fix incorrect defines
  regulator: vqmmc-ipq4019: Fix platform_no_drv_owner.cocci warnings
  regulator: vctrl-regulator: Avoid deadlock getting and setting the voltage
  regulator fix for "regulator: core: Add regulator_is_equal() helper"
  regulator: core: Add regulator_is_equal() helper
  regulator: mpq7920: Convert to use .probe_new
  regulator: mpq7920: Remove unneeded fields from struct mpq7920_regulator_info
  regulator: vqmmc-ipq4019: Trivial clean up
  regulator: vqmmc-ipq4019: Remove ipq4019_regulator_remove
  regulator: bindings: Drop document bindings for mpq7920
  dt-bindings: Drop entry for Monolithic Power System, MPS
  regulator: bd718x7: Simplify the code by removing struct bd718xx_pmic_inits
  regulator: add IPQ4019 SDHCI VQMMC LDO driver
  regulator: Convert i2c drivers to use .probe_new
  regulator: mpq7920: Check the correct variable in mpq7920_regulator_register()
  regulator: mpq7920: Fix Woverflow warning on conversion
  regulator: mp8859: tidy up white space in probe
  regulator: mpq7920: add mpq7920 regulator driver
  ...
2020-01-27 11:18:55 -08:00
Linus Torvalds
1e1ab4ba47 spi: Updates for v5.6
Not much going on in the core for SPI this time but a reasonable amount
 of change in the drivers:
 
  - Removal of dmal_request_slave_channel() from Peter Ujfalusi.
  - More conversions of drivers to GPIO descriptors from Linus Walleij.
  - A big rework of the sh-msiof driver from Geert Uytterhoeven moving it
    over to the generic native chipselect support.
  - DMA support for the uniphier driver from Kunihiko Hayashi.
  - New driver support for HiSilcon v3xx SPI NOR controllers from John
    Garry.
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Merge tag 'spi-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "Not much going on in the core for SPI this time but a reasonable
  amount of change in the drivers:

   - Removal of dmal_request_slave_channel() from Peter Ujfalusi.

   - More conversions of drivers to GPIO descriptors from Linus Walleij.

   - A big rework of the sh-msiof driver from Geert Uytterhoeven moving
     it over to the generic native chipselect support.

   - DMA support for the uniphier driver from Kunihiko Hayashi.

   - New driver support for HiSilcon v3xx SPI NOR controllers from John
     Garry"

* tag 'spi-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (52 commits)
  dt-binding: spi: add NPCM PSPI reset binding
  spi: pxa2xx: Avoid touching SSCR0_SSE on MMP2
  spi: spi-fsl-qspi: Ensure width is respected in spi-mem operations
  spi: npcm-pspi: modify reset support
  spi: npcm-pspi: improve spi transfer performance
  spi: spi-ti-qspi: fix warning
  spi: npcm-pspi: fix 16 bit send and receive support
  spi: pxa2xx: Add support for Intel Comet Lake PCH-V
  spi: fsl: simplify error path in of_fsl_spi_probe()
  spi: fsl-lpspi: fix only one cs-gpio working
  spi: spi-ti-qspi: optimize byte-transfers
  spi: spi-ti-qspi: support large flash devices
  spi: spi-qcom-qspi: Use device managed memory for clk_bulk_data
  MAINTAINERS: Add a maintainer for the HiSilicon v3xx SFC driver
  spi: Add HiSilicon v3xx SPI NOR flash controller driver
  dt-bindings: spi_atmel: add microchip,sam9x60-spi
  spi: bcm2835: Raise maximum number of slaves to 4
  spi: sh-msiof: Do not redefine STR while compile testing
  spi: rspi: Add support for GPIO chip selects
  spi: rspi: Add support for multiple native chip selects
  ...
2020-01-27 11:15:34 -08:00
Linus Torvalds
a5b871c91d dmaengine updates for v5.6-rc1
- Core:
    - Support for dynamic channels
    - Removal of various slave wrappers
    - Make few slave request APIs as private to dmaengine
    - Symlinks between channels and slaves
    - Support for hotplug of controllers
    - Support for metadata_ops for dma_async_tx_descriptor
    - Reporting DMA cached data amount
    - Virtual dma channel locking updates
 
  - New drivers/device/feature support support:
    - Driver for Intel data accelerators
    - Driver for TI K3 UDMA
    - Driver for PLX DMA engine
    - Driver for hisilicon Kunpeng DMA engine
    - Support for eDMA support for QorIQ LS1028A in fsl edma driver
    - Support for cyclic dma in sun4i driver
    - Support for X1830 in JZ4780 driver
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Merge tag 'dmaengine-5.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "This time we have a bunch of core changes to support dynamic channels,
  hotplug of controllers, new apis for metadata ops etc along with new
  drivers for Intel data accelerators, TI K3 UDMA, PLX DMA engine and
  hisilicon Kunpeng DMA engine. Also usual assorted updates to drivers.

  Core:
   - Support for dynamic channels
   - Removal of various slave wrappers
   - Make few slave request APIs as private to dmaengine
   - Symlinks between channels and slaves
   - Support for hotplug of controllers
   - Support for metadata_ops for dma_async_tx_descriptor
   - Reporting DMA cached data amount
   - Virtual dma channel locking updates

  New drivers/device/feature support support:
   - Driver for Intel data accelerators
   - Driver for TI K3 UDMA
   - Driver for PLX DMA engine
   - Driver for hisilicon Kunpeng DMA engine
   - Support for eDMA support for QorIQ LS1028A in fsl edma driver
   - Support for cyclic dma in sun4i driver
   - Support for X1830 in JZ4780 driver"

* tag 'dmaengine-5.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (62 commits)
  dmaengine: Create symlinks between DMA channels and slaves
  dmaengine: hisilicon: Add Kunpeng DMA engine support
  dmaengine: idxd: add char driver to expose submission portal to userland
  dmaengine: idxd: connect idxd to dmaengine subsystem
  dmaengine: idxd: add descriptor manipulation routines
  dmaengine: idxd: add sysfs ABI for idxd driver
  dmaengine: idxd: add configuration component of driver
  dmaengine: idxd: Init and probe for Intel data accelerators
  dmaengine: add support to dynamic register/unregister of channels
  dmaengine: break out channel registration
  x86/asm: add iosubmit_cmds512() based on MOVDIR64B CPU instruction
  dmaengine: ti: k3-udma: fix spelling mistake "limted" -> "limited"
  dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too"
  dmaengine: Move dma_get_{,any_}slave_channel() to private dmaengine.h
  dmaengine: Remove dma_request_slave_channel_compat() wrapper
  dmaengine: Remove dma_device_satisfies_mask() wrapper
  dt-bindings: fsl-imx-sdma: Add i.MX8MM/i.MX8MN/i.MX8MP compatible string
  dmaengine: zynqmp_dma: fix burst length configuration
  dmaengine: sun4i: Add support for cyclic requests with dedicated DMA
  dmaengine: fsl-qdma: fix duplicated argument to &&
  ...
2020-01-27 10:55:50 -08:00
Linus Torvalds
08c49dc135 platform-drivers-x86 for v5.6-1
* Enable thermal policy for ASUS TUF FX705DY/FX505DY
 * Support left round button on ASUS N56VB
 * Support new Mellanox platforms of basic class VMOD0009 and VMOD0010
 * Intel Comet Lake, Tiger Lake and Elkhart Lake support in the PMC driver
 * Big clean up to Intel PMC core, PMC IPC and SCU IPC drivers
 * Touchscreen support for the PiPO W11 tablet
 
 The following is an automated git shortlog grouped by driver:
 
 asus-nb-wmi:
  -  Support left round button on N56VB
 
 asus-wmi:
  -  Fix keyboard brightness cannot be set to 0
  -  Set throttle thermal policy to default
  -  Support throttle thermal policy
 
 Documentation/ABI:
  -  Add new attribute for mlxreg-io sysfs interfaces
  -  Style changes
  -  Add missed attribute for mlxreg-io sysfs interfaces
  -  Fix documentation inconsistency for mlxreg-io sysfs interfaces
 
 GPD pocket fan:
  -  Allow somewhat lower/higher temperature limits
  -  Use default values when wrong modparams are given
 
 intel_atomisp2_pm:
  -  Spelling fixes
  -  Refactor timeout loop
 
 intel_mid_powerbtn:
  -  Take a copy of ddata
 
 intel_pmc_core:
  -  update Comet Lake platform driver
  -  Fix spelling of MHz unit
  -  Fix indentation in function definitions
  -  Put more stuff under #ifdef DEBUG_FS
  -  Respect error code of kstrtou32_from_user()
  -  Add Intel Elkhart Lake support
  -  Add Intel Tiger Lake support
  -  Make debugfs entry for pch_ip_power_gating_status conditional
  -  Create platform dependent bitmap structs
  -  Remove unnecessary assignments
  -  Clean up: Remove comma after the termination line
 
 intel_pmc_ipc:
  -  Switch to use driver->dev_groups
  -  Propagate error from kstrtoul()
  -  Use octal permissions in sysfs attributes
  -  Get rid of unnecessary includes
  -  Drop ipc_data_readb()
  -  Drop intel_pmc_gcr_read() and intel_pmc_gcr_write()
  -  Make intel_pmc_ipc_raw_cmd() static
  -  Make intel_pmc_ipc_simple_command() static
  -  Make intel_pmc_gcr_update() static
 
 intel_scu_ipc:
  -  Reformat kernel-doc comments of exported functions
  -  Drop intel_scu_ipc_raw_command()
  -  Drop intel_scu_ipc_io[read|write][8|16]()
  -  Drop unused macros
  -  Drop unused prototype intel_scu_ipc_fw_update()
  -  Sleeping is fine when polling
  -  Drop intel_scu_ipc_i2c_cntrl()
  -  Remove Lincroft support
  -  Add constants for register offsets
  -  Fix interrupt support
 
 intel_scu_ipcutil:
  -  Remove default y from Kconfig
 
 intel_telemetry_debugfs:
  -  Respect error code of kstrtou32_from_user()
 
 intel_telemetry_pltdrv:
  -  use devm_platform_ioremap_resource()
 
 mlx-platform:
  -  Add support for next generation systems
  -  Add support for new capability register
  -  Add support for new system type
  -  Set system mux configuration based on system type
  -  Add more definitions for system attributes
  -  Cosmetic changes
 
 platform/mellanox:
  -  mlxreg-hotplug: Add support for new capability register
  -  fix potential deadlock in the tmfifo driver
 
 tools/power/x86/intel-speed-select:
  -  Update version
  -  Change the order for clos disable
  -  Fix result display for turbo-freq auto mode
  -  Add support for core-power discovery
  -  Allow additional core-power mailbox commands
  -  Update MAINTAINERS for the intel uncore frequency control
  -  Add support for Uncore frequency control
 
 touchscreen_dmi:
  -  Fix indentation in several places
  -  Add info for the PiPO W11 tablet
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Merge tag 'platform-drivers-x86-v5.6-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:

 - Enable thermal policy for ASUS TUF FX705DY/FX505DY

 - Support left round button on ASUS N56VB

 - Support new Mellanox platforms of basic class VMOD0009 and VMOD0010

 - Intel Comet Lake, Tiger Lake and Elkhart Lake support in the PMC
   driver

 - Big clean-up to Intel PMC core, PMC IPC and SCU IPC drivers

 - Touchscreen support for the PiPO W11 tablet

* tag 'platform-drivers-x86-v5.6-1' of git://git.infradead.org/linux-platform-drivers-x86: (64 commits)
  platform/x86: intel_pmc_ipc: Switch to use driver->dev_groups
  platform/x86: intel_pmc_ipc: Propagate error from kstrtoul()
  platform/x86: intel_pmc_ipc: Use octal permissions in sysfs attributes
  platform/x86: intel_pmc_ipc: Get rid of unnecessary includes
  platform/x86: intel_pmc_ipc: Drop ipc_data_readb()
  platform/x86: intel_pmc_ipc: Drop intel_pmc_gcr_read() and intel_pmc_gcr_write()
  platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_raw_cmd() static
  platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_simple_command() static
  platform/x86: intel_pmc_ipc: Make intel_pmc_gcr_update() static
  platform/x86: intel_scu_ipc: Reformat kernel-doc comments of exported functions
  platform/x86: intel_scu_ipc: Drop intel_scu_ipc_raw_command()
  platform/x86: intel_scu_ipc: Drop intel_scu_ipc_io[read|write][8|16]()
  platform/x86: intel_scu_ipc: Drop unused macros
  platform/x86: intel_scu_ipc: Drop unused prototype intel_scu_ipc_fw_update()
  platform/x86: intel_scu_ipc: Sleeping is fine when polling
  platform/x86: intel_scu_ipc: Drop intel_scu_ipc_i2c_cntrl()
  platform/x86: intel_scu_ipc: Remove Lincroft support
  platform/x86: intel_scu_ipc: Add constants for register offsets
  platform/x86: intel_scu_ipc: Fix interrupt support
  platform/x86: intel_scu_ipcutil: Remove default y from Kconfig
  ...
2020-01-27 10:42:35 -08:00
Linus Torvalds
9e1af7567b MMC core:
- Convert to reasonable timeouts for all CMD6 commands (updates for BKOPS,
    CACHE_FLUSH and INAND_CMD38_ARG_EXT_CSD) for eMMC
  - Respect f_max clock rate at card initialization
  - Add gpiod_toggle_active_low() API
  - Consolidate slot-gpio code by using gpiod_toggle_active_low()
 
 MMC host:
  - Add pinctrl_select_default_state() API
  - Consolidate pintctrl code by using pinctrl_select_default_state()
  - mmci: Support any block sizes for SDIO for some variants
  - mmci: Enable reset control for stm32_sdmmc
  - mmc_spi: Toggle SPI_CS_HIGH polarity rather than hard-coding it
  - renesas_sdhi: Add support for the r8a77961 variant
  - renesas_sdhi: A few minor improvements
  - rockchip-dw-mshc: Add support for the rk3308 variant
  - sdhci: Enable support for external DMA controllers
  - sdhci: Fixup error path when sending CMD12
  - sdhci-brcmstb: Add support for 7216b0 variant
  - sdhci-brcmstb: Add support for command queuing (CQHCI)
  - sdhci-brcmstb: Add support for eMMC HS400ES mode
  - sdhci-msm: Add support for the sc7180 variant
  - sdhci-msm: Add support for command queuing (CQHCI)
  - sdhci-of-at91: Add support for the SAM9x60 variant
  - sdhci-of-at91: Improve support for tunings
  - sdhci-of-esdhc: A few fixups for some clock related issues
  - sdhci-omap: Add support for the am335x and the am437x variants
  - sdhci-omap: Improve support for erase operations
  - sdhci-omap: Add support for external DMA
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Merge tag 'mmc-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "There are no updates for the MEMSTICK subsystem this time. But note
  that I am also carrying a patch from the pinctrl tree, which has been
  shared through an immutable branch.

  Summary:

  MMC core:
   - Convert to reasonable timeouts for all CMD6 commands (updates for
     BKOPS, CACHE_FLUSH and INAND_CMD38_ARG_EXT_CSD) for eMMC
   - Respect f_max clock rate at card initialization
   - Add gpiod_toggle_active_low() API
   - Consolidate slot-gpio code by using gpiod_toggle_active_low()

  MMC host:
   - Add pinctrl_select_default_state() API
   - Consolidate pintctrl code by using pinctrl_select_default_state()
   - mmci: Support any block sizes for SDIO for some variants
   - mmci: Enable reset control for stm32_sdmmc
   - mmc_spi: Toggle SPI_CS_HIGH polarity rather than hard-coding it
   - renesas_sdhi: Add support for the r8a77961 variant
   - renesas_sdhi: A few minor improvements
   - rockchip-dw-mshc: Add support for the rk3308 variant
   - sdhci: Enable support for external DMA controllers
   - sdhci: Fixup error path when sending CMD12
   - sdhci-brcmstb: Add support for 7216b0 variant
   - sdhci-brcmstb: Add support for command queuing (CQHCI)
   - sdhci-brcmstb: Add support for eMMC HS400ES mode
   - sdhci-msm: Add support for the sc7180 variant
   - sdhci-msm: Add support for command queuing (CQHCI)
   - sdhci-of-at91: Add support for the SAM9x60 variant
   - sdhci-of-at91: Improve support for tunings
   - sdhci-of-esdhc: A few fixups for some clock related issues
   - sdhci-omap: Add support for the am335x and the am437x variants
   - sdhci-omap: Improve support for erase operations
   - sdhci-omap: Add support for external DMA"

* tag 'mmc-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (89 commits)
  mmc: core: Default to generic_cmd6_time as timeout in __mmc_switch()
  mmc: block: Use generic_cmd6_time when modifying INAND_CMD38_ARG_EXT_CSD
  mmc: core: Specify timeouts for BKOPS and CACHE_FLUSH for eMMC
  mmc: sdhci-cadence: remove unneeded 'inline' marker
  dt-bindings: mmc: rockchip-dw-mshc: add description for rk3308
  dt-bindings: mmc: convert rockchip dw-mshc bindings to yaml
  dt-bindings: mmc: convert synopsys dw-mshc bindings to yaml
  mmc: sdhci-msm: Add CQHCI support for sdhci-msm
  mmc: sdhci: Let a vendor driver supply and update ADMA descriptor size
  mmc: sdhci-of-esdhc: fix serious issue clock is always disabled
  mmc: sdhci-of-esdhc: fix transfer mode register reading
  mmc: sdhci-brcmstb: Fix incorrect switch to HS mode
  mmc: sdhci-brcmstb: Add support for Command Queuing (CQE)
  mmc: sdhci-brcmstb: Add shutdown callback
  mmc: sdhci-brcmstb: Fix driver to defer on clk_get defer
  mmc: sdhci-brcmstb: Add ability to use HS400ES transfer mode
  dt-bindings: mmc: brcm,sdhci-brcmstb: Add support for 7216b0
  mmc: core: limit probe clock frequency to configured f_max
  mmc: sdhci-milbeaut: Remove redundant platform_get_irq error message
  mmc: sdhci: fix an issue of mixing different types
  ...
2020-01-27 10:30:42 -08:00
Mark Brown
e4e4c2ff78
Merge branch 'regulator-5.6' into regulator-next 2020-01-27 17:24:38 +00:00
Saravanan Sekar
44e9b34464
dt-bindings: regulator: add document bindings for mpq7920
Add device tree binding information for mpq7920 regulator driver.
Example bindings for mpq7920 are added.

Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200123215338.11109-1-sravanhome@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-01-27 17:23:47 +00:00
Linus Torvalds
35417d57ef hwmon updates for v5.6
core:
 - Add support for enable attributes to hwmon core
 - Add intrusion templates
 
 pmbus:
 - Support for Infineon Multi-phase xdpe122 family controllers
 - Support for Intel IMVP9 and AMD 6.25mV modes
 - Support for vid mode detection per page bases
 - Detect if chip is write protected
 - Support for MAX20730, MAX20734, MAX20743, MAX20796, UCD90320, TPS53688
 - Various improvements to ibm-cffps driver
 
 k10temp:
 - Support for additional temperature sensors as well as voltage and
   current telemetry for Zen CPUs
 
 w83627ehf:
 - Remove support for NCT6775, NCT6776 (they have their own driver)
 
 New drivers:
 - ADM1177
 - MAX31730
 - Driver for disk and solid state drives with temperature sensors
 
 Other:
 - pwm-fan: stop fan on shutdown
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Merge tag 'hwmon-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "core:
   - Add support for enable attributes to hwmon core
   - Add intrusion templates

  pmbus:
   - Support for Infineon Multi-phase xdpe122 family controllers
   - Support for Intel IMVP9 and AMD 6.25mV modes
   - Support for vid mode detection per page bases
   - Detect if chip is write protected
   - Support for MAX20730, MAX20734, MAX20743, MAX20796, UCD90320,
     TPS53688
   - Various improvements to ibm-cffps driver

  k10temp:
   - Support for additional temperature sensors as well as voltage and
     current telemetry for Zen CPUs

  w83627ehf:
   - Remove support for NCT6775, NCT6776 (they have their own driver)

  New drivers:
   - ADM1177
   - MAX31730
   - Driver for disk and solid state drives with temperature sensors

  Other:
   - pwm-fan: stop fan on shutdown"

* tag 'hwmon-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (35 commits)
  hwmon: (k10temp) Display up to eight sets of CCD temperatures
  hwmon: (k10temp) Add debugfs support
  hwmon: (k10temp) Don't show temperature limits on Ryzen (Zen) CPUs
  hwmon: (k10temp) Show core and SoC current and voltages on Ryzen CPUs
  hwmon: (k10temp) Report temperatures per CPU die
  hmon: (k10temp) Convert to use devm_hwmon_device_register_with_info
  hwmon: (k10temp) Use bitops
  hwmon: (pwm-fan) stop fan on shutdown
  MAINTAINERS: add entry for ADM1177 driver
  dt-binding: hwmon: Add documentation for ADM1177
  hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor driver
  docs: hwmon: Include 'xdpe12284.rst' into docs
  hwmon: (pmbus) Add support for Infineon Multi-phase xdpe122 family controllers
  hwmon: (pmbus/tps53679) Extend device list supported by driver
  hwmon: (pmbus/core) Add support for Intel IMVP9 and AMD 6.25mV modes
  hwmon: (pmbus/core) Add support for vid mode detection per page bases
  hwmon: (pmbus/ibm-cffps) Prevent writing on_off_config with bad data
  hwmon: (w83627ehf) Remove set but not used variable 'fan4min'
  hwmon: Driver for disk and solid state drives with temperature sensors
  hwmon: (pmbus/ibm-cffps) Fix the LED behavior when turned off
  ...
2020-01-27 09:14:11 -08:00
Linus Torvalds
189fc98efe tpmdd updates for Linux v5.6
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Merge tag 'tpmdd-next-20200122' of git://git.infradead.org/users/jjs/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "This adds a new sysfs file for querying TPM major version, which can
  be used by the user space the TPM protocol used to communicate with
  the chip"

* tag 'tpmdd-next-20200122' of git://git.infradead.org/users/jjs/linux-tpmdd:
  tpm: Add tpm_version_major sysfs file
  tpm: Update mailing list contact information in sysfs-class-tpm
2020-01-27 09:12:13 -08:00
Linus Torvalds
0238d3c753 arm64 updates for 5.6
- New architecture features
 	* Support for Armv8.5 E0PD, which benefits KASLR in the same way as
 	  KPTI but without the overhead. This allows KPTI to be disabled on
 	  CPUs that are not affected by Meltdown, even is KASLR is enabled.
 
 	* Initial support for the Armv8.5 RNG instructions, which claim to
 	  provide access to a high bandwidth, cryptographically secure hardware
 	  random number generator. As well as exposing these to userspace, we
 	  also use them as part of the KASLR seed and to seed the crng once
 	  all CPUs have come online.
 
 	* Advertise a bunch of new instructions to userspace, including support
 	  for Data Gathering Hint, Matrix Multiply and 16-bit floating point.
 
 - Kexec
 	* Cleanups in preparation for relocating with the MMU enabled
 	* Support for loading crash dump kernels with kexec_file_load()
 
 - Perf and PMU drivers
 	* Cleanups and non-critical fixes for a couple of system PMU drivers
 
 - FPU-less (aka broken) CPU support
 	* Considerable fixes to support CPUs without the FP/SIMD extensions,
 	  including their presence in heterogeneous systems. Good luck finding
 	  a 64-bit userspace that handles this.
 
 - Modern assembly function annotations
 	* Start migrating our use of ENTRY() and ENDPROC() over to the
 	  new-fangled SYM_{CODE,FUNC}_{START,END} macros, which are intended to
 	  aid debuggers
 
 - Kbuild
 	* Cleanup detection of LSE support in the assembler by introducing
 	  'as-instr'
 
 	* Remove compressed Image files when building clean targets
 
 - IP checksumming
 	* Implement optimised IPv4 checksumming routine when hardware offload
 	  is not in use. An IPv6 version is in the works, pending testing.
 
 - Hardware errata
 	* Work around Cortex-A55 erratum #1530923
 
 - Shadow call stack
 	* Work around some issues with Clang's integrated assembler not liking
 	  our perfectly reasonable assembly code
 
 	* Avoid allocating the X18 register, so that it can be used to hold the
 	  shadow call stack pointer in future
 
 - ACPI
 	* Fix ID count checking in IORT code. This may regress broken firmware
 	  that happened to work with the old implementation, in which case we'll
 	  have to revert it and try something else
 
 	* Fix DAIF corruption on return from GHES handler with pseudo-NMIs
 
 - Miscellaneous
 	* Whitelist some CPUs that are unaffected by Spectre-v2
 
 	* Reduce frequency of ASID rollover when KPTI is compiled in but
 	  inactive
 
 	* Reserve a couple of arch-specific PROT flags that are already used by
 	  Sparc and PowerPC and are planned for later use with BTI on arm64
 
 	* Preparatory cleanup of our entry assembly code in preparation for
 	  moving more of it into C later on
 
 	* Refactoring and cleanup
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "The changes are a real mixed bag this time around.

  The only scary looking one from the diffstat is the uapi change to
  asm-generic/mman-common.h, but this has been acked by Arnd and is
  actually just adding a pair of comments in an attempt to prevent
  allocation of some PROT values which tend to get used for
  arch-specific purposes. We'll be using them for Branch Target
  Identification (a CFI-like hardening feature), which is currently
  under review on the mailing list.

  New architecture features:

   - Support for Armv8.5 E0PD, which benefits KASLR in the same way as
     KPTI but without the overhead. This allows KPTI to be disabled on
     CPUs that are not affected by Meltdown, even is KASLR is enabled.

   - Initial support for the Armv8.5 RNG instructions, which claim to
     provide access to a high bandwidth, cryptographically secure
     hardware random number generator. As well as exposing these to
     userspace, we also use them as part of the KASLR seed and to seed
     the crng once all CPUs have come online.

   - Advertise a bunch of new instructions to userspace, including
     support for Data Gathering Hint, Matrix Multiply and 16-bit
     floating point.

  Kexec:

   - Cleanups in preparation for relocating with the MMU enabled

   - Support for loading crash dump kernels with kexec_file_load()

  Perf and PMU drivers:

   - Cleanups and non-critical fixes for a couple of system PMU drivers

  FPU-less (aka broken) CPU support:

   - Considerable fixes to support CPUs without the FP/SIMD extensions,
     including their presence in heterogeneous systems. Good luck
     finding a 64-bit userspace that handles this.

  Modern assembly function annotations:

   - Start migrating our use of ENTRY() and ENDPROC() over to the
     new-fangled SYM_{CODE,FUNC}_{START,END} macros, which are intended
     to aid debuggers

  Kbuild:

   - Cleanup detection of LSE support in the assembler by introducing
     'as-instr'

   - Remove compressed Image files when building clean targets

  IP checksumming:

   - Implement optimised IPv4 checksumming routine when hardware offload
     is not in use. An IPv6 version is in the works, pending testing.

  Hardware errata:

   - Work around Cortex-A55 erratum #1530923

  Shadow call stack:

   - Work around some issues with Clang's integrated assembler not
     liking our perfectly reasonable assembly code

   - Avoid allocating the X18 register, so that it can be used to hold
     the shadow call stack pointer in future

  ACPI:

   - Fix ID count checking in IORT code. This may regress broken
     firmware that happened to work with the old implementation, in
     which case we'll have to revert it and try something else

   - Fix DAIF corruption on return from GHES handler with pseudo-NMIs

  Miscellaneous:

   - Whitelist some CPUs that are unaffected by Spectre-v2

   - Reduce frequency of ASID rollover when KPTI is compiled in but
     inactive

   - Reserve a couple of arch-specific PROT flags that are already used
     by Sparc and PowerPC and are planned for later use with BTI on
     arm64

   - Preparatory cleanup of our entry assembly code in preparation for
     moving more of it into C later on

   - Refactoring and cleanup"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (73 commits)
  arm64: acpi: fix DAIF manipulation with pNMI
  arm64: kconfig: Fix alignment of E0PD help text
  arm64: Use v8.5-RNG entropy for KASLR seed
  arm64: Implement archrandom.h for ARMv8.5-RNG
  arm64: kbuild: remove compressed images on 'make ARCH=arm64 (dist)clean'
  arm64: entry: Avoid empty alternatives entries
  arm64: Kconfig: select HAVE_FUTEX_CMPXCHG
  arm64: csum: Fix pathological zero-length calls
  arm64: entry: cleanup sp_el0 manipulation
  arm64: entry: cleanup el0 svc handler naming
  arm64: entry: mark all entry code as notrace
  arm64: assembler: remove smp_dmb macro
  arm64: assembler: remove inherit_daif macro
  ACPI/IORT: Fix 'Number of IDs' handling in iort_id_map()
  mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use
  arm64: Use macros instead of hard-coded constants for MAIR_EL1
  arm64: Add KRYO{3,4}XX CPU cores to spectre-v2 safe list
  arm64: kernel: avoid x18 in __cpu_soft_restart
  arm64: kvm: stop treating register x18 as caller save
  arm64/lib: copy_page: avoid x18 register in assembler code
  ...
2020-01-27 08:58:19 -08:00
Takashi Iwai
90fb04f890 ASoC: Updates for v5.6
A pretty big release this time around, a lot of new drivers and both
 Morimoto-san and Takashi were doing subsystem wide updates as well:
 
  - Further big refactorings from Morimoto-san simplifying the core
    interfaces and moving things to the component level.
  - Transition of drivers to managed buffer allocation and removal of
    redundant PCM ioctls.
  - New driver support for Ingenic JZ4770, Mediatek MT6660, Qualcomm
    WCD934x and WSA881x, and Realtek RT700, RT711, RT715, RT1011, RT1015
    and RT1308.
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Merge tag 'asoc-v5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v5.6

A pretty big release this time around, a lot of new drivers and both
Morimoto-san and Takashi were doing subsystem wide updates as well:

 - Further big refactorings from Morimoto-san simplifying the core
   interfaces and moving things to the component level.
 - Transition of drivers to managed buffer allocation and removal of
   redundant PCM ioctls.
 - New driver support for Ingenic JZ4770, Mediatek MT6660, Qualcomm
   WCD934x and WSA881x, and Realtek RT700, RT711, RT715, RT1011, RT1015
   and RT1308.
2020-01-27 17:45:44 +01:00
yong.liang
fe42cc30a9 dt-bindings: mediatek: mt2712: Add #reset-cells
Add #reset-cells and update mtk-wdt.txt

Signed-off-by: yong.liang <yong.liang@mediatek.com>
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Reviewed-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <groeck7@gmail.com>
Link: https://lore.kernel.org/r/20200115085828.27791-3-yong.liang@mediatek.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-01-27 15:55:48 +01:00