Commit Graph

89020 Commits

Author SHA1 Message Date
Olof Johansson
be9b01675e ARM: highbank: only select errata 764369 if SMP
764369 depends on SMP, so don't select it on !SMP configs.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Rob Herring <rob.herring@calxeda.com>
2013-11-14 10:46:37 -08:00
Olof Johansson
a48c4904a9 ARM: sti: only select errata 764369 if SMP
764369 depends on SMP, so don't select it on !SMP configs.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Cc: Stuart Menefy <stuart.menefy@st.com>
2013-11-14 10:46:33 -08:00
Alexandre Courbot
cd198d6dc4 ARM: tegra: init fuse before setting reset handler
CPU reset handler was set before fuse is initialized, but
tegra_cpu_reset_handler_enable() uses tegra_chip_id, which is set by
tegra_init_fuse(). This patch reorders the calls so the CPU reset
handler code does not read an uninitialized variable.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-14 10:44:31 -08:00
Olof Johansson
4fde38bb5b ARM: vt8500: add defconfig for v6/v7 chips
Add a single-vendor config for vt8500. We can't enable WM8750 in
multi_v7_defconfig since it's a v6-based device, but it's still valuable
to have an in-tree defconfig that is suitable for the hardware.

This is based on multi_v7_defconfig and can be tweaked over time. It
gets us off the ground for now. Naming it vt8500_v6_v7 similar to i.MX
since there are v5-based vt8500 chips as well.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
2013-11-14 10:44:30 -08:00
Jonathan Austin
30aeadd44d ARM: integrator_cp: Set LCD{0,1} enable lines when turning on CLCD
This turns on the internal integrator LCD display(s). It seems that the code
to do this got lost in refactoring of the CLCD driver.

Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-14 10:44:30 -08:00
Alexander Shiyan
036e299180 ARM: dts: i.MX51: Fix OTG PHY clock
Proper clock ID for USB OTG PHY is "usb_phy_gate".
The patch changes this mismatch.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:45 +08:00
Shawn Guo
43c9b9e8a4 ARM: imx: set up pllv3 POWER and BYPASS sequentially
Currently, POWER and BYPASS bits are set up in a single write to pllv3
register.  This causes problem occasionally from the IPU/HDMI testing.
Let's follow FSL BSP code to set up POWER bit, relock, and then BYPASS
sequentially.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:45 +08:00
Shawn Guo
bc3b84da8a ARM: imx: pllv3 needs relock in .set_rate() call
The pllv3 nees relock not only when powering up but also when rate
changes.  The patch creates a helper function clk_pllv3_wait_lock() and
moves the relock code from clk_pllv3_prepare() into there, so that
both .prepare() and .set_rate() hooks of pllv3 can call into the helper
for relocking.

Since relock is only needed when PLL is powered up while clk_set_rate()
could be called before clk is prepared, we need to add a check in
clk_pllv3_wait_lock() to skip the relock if PLL is not powered.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:44 +08:00
Shawn Guo
322503a157 ARM: imx: add sleep for pllv3 relock
The pllv3 relock time varies in the range of 50us ~ 500us, depending on
the specific PLL type, e.g. 50us for ARM PLL and 450us for Audio/Video
PLL.  Let's add a usleep_range() call instead of doing busy wait during
relock.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:44 +08:00
Lothar Waßmann
ec9de6cd95 ARM: imx6q: add missing sentinel to divider table
The clk_enet_ref_table[] is missing a final empty entry as end of list
marker. Also make the existing markers more obvious.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:44 +08:00
Shawn Guo
5d48217210 ARM: imx: v7_cpu_resume() is needed by imx6sl build
Building a kernel with the following options,

  CONFIG_SMP=n
  CONFIG_PM=y
  CONFIG_SOC_IMX6SL=y
  CONFIG_SOC_IMX6Q=n

we will see the build error below.

  arch/arm/mach-imx/built-in.o: In function `imx6q_pm_enter':
  platform-spi_imx.c:(.text+0x2648): undefined reference to `v7_cpu_resume'
  make[1]: *** [vmlinux] Error 1

This is because that v7_cpu_resume() implemented in headsmp.S is also
needed by imx6sl build.  Let's build headsmp.S for CONFIG_SOC_IMX6SL as
well.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:43 +08:00
Shawn Guo
2c11b57a8a ARM: imx: improve mxc_restart() on the SRC bit writes
The current comment in the code does not make it clear why the double writes
on SRC bit is needed.  Let's quote the errata to get it clear.  Also, to
ensure there are at least 2 writes happen in the same one 32kHz period,
we actually need 3 writes.  Let's add the third one.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:43 +08:00
Shawn Guo
b6e23bb63f ARM: imx: remove imx_src_prepare_restart() call
There is ~10% possibility that the following emergency restart command
fails to reboot imx6q.

$ echo b > /proc/sysrq-trigger

The IMX restart routine mxc_restart() assumes that it will always run on
primary core, and will call imx_src_prepare_restart() to disable
secondary cores in order to get them come to online in the following
boot.  However, the assumption is only true for normal kernel_restart()
case where migrate_to_reboot_cpu() will be called to migrate to primary
core, but not necessarily true for emergency_restart() case.  So when
emergency_restart() calls into mxc_restart() on any secondary core,
system will hang immediately once imx_src_prepare_restart() is called
to disabled secondary cores.  Since emergency_restart() is defined as a
function that is safe to call in interrupt context, we cannot just call
migrate_to_reboot_cpu() to fix the issue.

Fortunately, we just found that the issue can be fixed at imx6q platform
level.  We used to call imx_src_prepare_restart() to disable all
secondary cores before resetting hardware.  Otherwise, the secondary
will fail come to online in the reboot.  However, we recently found that
after commit 6050d18 (ARM: imx: reset core along with enable/disable
operation) comes to play, we do not need to reset the secondary cores
any more.  That said, mxc_restart() now can run on any core to reboot
the system, as long as we remove the imx_src_prepare_restart() call from
mxc_restart().

So let's simply remove imx_src_prepare_restart() call to fix the above
emergency restart failure.

Reported-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:43 +08:00
Jiada Wang
9b3d423707 ARM: i.MX6q: fix the wrong parent of can_root clock
instead of pll3_usb_otg the parent of can_root clock
should be pll3_60m.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:42 +08:00
Linus Torvalds
edae583a6d ARC changes for 3.13
* Towards a working SMP setup (ASID allocation, TLB Flush,...)
 * Support for TRACE_IRQFLAGS, LOCKDEP
 * cacheflush backend consolidation for I/D
 * Lots of allmodconfig fixlets from Chen
 * Other improvements/fixes
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Merge tag 'arc-v3.13-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC changes from Vineet Gupta:
 - Towards a working SMP setup (ASID allocation, TLB Flush,...)
 - Support for TRACE_IRQFLAGS, LOCKDEP
 - cacheflush backend consolidation for I/D
 - Lots of allmodconfig fixlets from Chen
 - Other improvements/fixes

* tag 'arc-v3.13-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (25 commits)
  ARC: [plat-arcfpga] defconfig update
  smp, ARC: kill SMP single function call interrupt
  ARC: [SMP] Disallow RTSC
  ARC: [SMP] Fix build failures for large NR_CPUS
  ARC: [SMP] enlarge possible NR_CPUS
  ARC: [SMP] TLB flush
  ARC: [SMP] ASID allocation
  arc: export symbol for pm_power_off in reset.c
  arc: export symbol for save_stack_trace() in stacktrace.c
  arc: remove '__init' for get_hw_config_num_irq()
  arc: remove '__init' for first_lines_of_secondary()
  arc: remove '__init' for setup_processor() and arc_init_IRQ()
  arc: kgdb: add default implementation for kgdb_roundup_cpus()
  ARC: Fix bogus gcc warning and micro-optimise TLB iteration loop
  ARC: Add support for irqflags tracing and lockdep
  ARC: Reset the value of Interrupt Priority Register
  ARC: Reduce #ifdef'ery for unaligned access emulation
  ARC: Change calling convention of do_page_fault()
  ARC: cacheflush optim - PTAG can be loop invariant if V-P is const
  ARC: cacheflush refactor #3: Unify the {d,i}cache flush leaf helpers
  ...
2013-11-11 18:19:06 +09:00
Linus Torvalds
0a759b2466 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
 "Summary:
   - __put_user_unaligned may/will be used by btrfs
   - m68k part of a global cleanup"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Remove deprecated IRQF_DISABLED
  m68k/m68knommu: Implement __get_user_unaligned/__put_user_unaligned()
2013-11-11 18:17:07 +09:00
Linus Torvalds
78d4a42069 Merge branch 'parisc-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc update from Helge Deller:
 - a bugfix for sticon (parisc text console driver) to not crash the
   64bit kernel on machines with more than 4GB RAM
 - added kernel audit support
 - made udelay() implementation SMP-safe
 - "make install" now does not depend on vmlinux
 - added defconfigs for 32- and 64-kernels

* 'parisc-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: add generic 32- and 64-bit defconfigs
  parisc: sticon - unbreak on 64bit kernel
  parisc: signal fixup - SIGBUS vs. SIGSEGV
  parisc: implement full version of access_ok()
  parisc: correctly display number of active CPUs
  parisc: do not count IPI calls twice
  parisc: make udelay() SMP-safe
  parisc: remove duplicate define
  parisc: make "make install" not depend on vmlinux
  parisc: add kernel audit feature
  parisc: provide macro to create exception table entries
2013-11-11 18:15:25 +09:00
Linus Torvalds
f9efbce633 ARM: SoC DT updates for 3.13
Most of this branch consists of updates, additions and general churn of
 the device tree source files in the kernel (arch/arm/boot/dts). Besides
 that, there are a few things to point out:
 
 - Lots of platform conversion on OMAP2+, with removal of old board files
   for various platforms.
 - Final conversion of a bunch of ux500 (ST-Ericsson) platforms as well
 - Some updates to pinctrl and other subsystems. Most of these are for
   DT-enablement of the various platforms and acks have been collected.
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Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC DT updates from Olof Johansson:
 "Most of this branch consists of updates, additions and general churn
  of the device tree source files in the kernel (arch/arm/boot/dts).
  Besides that, there are a few things to point out:

   - Lots of platform conversion on OMAP2+, with removal of old board
     files for various platforms.
   - Final conversion of a bunch of ux500 (ST-Ericsson) platforms as
     well
   - Some updates to pinctrl and other subsystems.  Most of these are
     for DT-enablement of the various platforms and acks have been
     collected"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (385 commits)
  ARM: dts: bcm11351: Use GIC/IRQ defines for sdio interrupts
  ARM: dts: bcm: Add missing UARTs for bcm11351 (bcm281xx)
  ARM: dts: bcm281xx: Add card detect GPIO
  ARM: dts: rename ARCH_BCM to ARCH_BCM_MOBILE (dt)
  ARM: bcm281xx: Add device node for the GPIO controller
  ARM: mvebu: Add Netgear ReadyNAS 104 board
  ARM: tegra: fix Tegra114 IOMMU register address
  ARM: kirkwood: add support for OpenBlocks A7 platform
  ARM: dts: omap4-panda: add DPI pinmuxing
  ARM: dts: AM33xx: Add RNG node
  ARM: dts: AM33XX: Add hwspinlock node
  ARM: dts: OMAP5: Add hwspinlock node
  ARM: dts: OMAP4: Add hwspinlock node
  ARM: dts: use 'status' property for PCIe nodes
  ARM: dts: sirf: add missed address-cells and size-cells for prima2 I2C
  ARM: dts: sirf: add missed cell, cs and dma channel for SPI nodes
  ARM: dts: sirf: add missed graphics2d iobg in atlas6 dts
  ARM: dts: sirf: add missed chhifbg node in prima2 and atlas6 dts
  ARM: dts: sirf: add missed memcontrol-monitor node in prima2 and atlas6 dts
  ARM: mvebu: Add the core-divider clock to Armada 370/XP
  ...
2013-11-11 17:34:56 +09:00
Linus Torvalds
53575aa99d ARM: driver updates for 3.13
Updates of SoC-near drivers and other driver updates that makes more sense to
 take through our tree. In this case it's involved:
 
 - Some Davinci driver updates that has required corresponding platform code
   changes (gpio mostly)
 - CCI bindings and a few driver updates
 - Marvell mvebu patches for PCI MSI support (could have gone through the PCI
   tree for this release, but they were acked by Bjorn for 3.12 so we kept them
   through arm-soc).
 - Marvell dove switch-over to DT-based PCIe configuration
 - Misc updates for Samsung platform dmaengine drivers
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM driver updates from Olof Johansson:
 "Updates of SoC-near drivers and other driver updates that makes more
  sense to take through our tree.  In this case it's involved:

   - Some Davinci driver updates that has required corresponding
     platform code changes (gpio mostly)
   - CCI bindings and a few driver updates
   - Marvell mvebu patches for PCI MSI support (could have gone through
     the PCI tree for this release, but they were acked by Bjorn for
     3.12 so we kept them through arm-soc).
   - Marvell dove switch-over to DT-based PCIe configuration
   - Misc updates for Samsung platform dmaengine drivers"

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
  ARM: S3C24XX: add dma pdata for s3c2410, s3c2440 and s3c2442
  dmaengine: s3c24xx-dma: add support for the s3c2410 type of controller
  ARM: S3C24XX: Fix possible dma selection warning
  PCI: mvebu: make local functions static
  PCI: mvebu: add I/O access wrappers
  PCI: mvebu: Dynamically detect if the PEX link is up to enable hot plug
  ARM: mvebu: fix gated clock documentation
  ARM: dove: remove legacy pcie and clock init
  ARM: dove: switch to DT probed mbus address windows
  ARM: SAMSUNG: set s3c24xx_dma_filter for s3c64xx-spi0 device
  ARM: S3C24XX: add platform-devices for new dma driver for s3c2412 and s3c2443
  dmaengine: add driver for Samsung s3c24xx SoCs
  ARM: S3C24XX: number the dma clocks
  PCI: mvebu: add support for Marvell Dove SoCs
  PCI: mvebu: add support for reset on GPIO
  PCI: mvebu: remove subsys_initcall
  PCI: mvebu: increment nports only for registered ports
  PCI: mvebu: move clock enable before register access
  PCI: mvebu: add support for MSI
  irqchip: armada-370-xp: implement MSI support
  ...
2013-11-11 17:05:37 +09:00
Linus Torvalds
d5aabbcaee ARM: SoC board updates for 3.13
Board-related updates. This branch is getting smaller and smaller, which is
 the whole idea so that's reassuring.
 
 Right now by far most of the code is related to shmobile updates, and
 they are now switching over to removal of board code and migration to
 multiplatform, so we'll see their board code base shrink in the near
 future too, I hope.
 
 In addition to that is some defconfig updates, some display updates for OMAP
 and a bit of new board support for Rockchip boards.
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Merge tag 'boards-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC board updates from Olof Johansson:
 "Board-related updates.  This branch is getting smaller and smaller,
  which is the whole idea so that's reassuring.

  Right now by far most of the code is related to shmobile updates, and
  they are now switching over to removal of board code and migration to
  multiplatform, so we'll see their board code base shrink in the near
  future too, I hope.

  In addition to that is some defconfig updates, some display updates
  for OMAP and a bit of new board support for Rockchip boards"

* tag 'boards-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (56 commits)
  ARM: rockchip: add support for rk3188 and Radxa Rock board
  ARM: rockchip: add dts for bqcurie2 tablet
  ARM: rockchip: enable arm-global-timer
  ARM: rockchip: move shared dt properties to common source file
  ARM: OMAP2+: display: Create omap_vout device inside omap_display_init
  ARM: OMAP2+: display: Create omapvrfb and omapfb devices inside omap_display_init
  ARM: OMAP2+: display: Create omapdrm device inside omap_display_init
  ARM: OMAP2+: drm: Don't build device for DMM
  ARM: tegra: defconfig updates
  RX-51: Add support for OMAP3 ROM Random Number Generator
  ARM: OMAP3: RX-51: ARM errata 430973 workaround
  ARM: OMAP3: Add secure function omap_smc3() which calling instruction smc #1
  ARM: shmobile: marzen: enable INTC IRQ
  ARM: shmobile: bockw: add SMSC support on reference
  ARM: shmobile: Use SMP on Koelsch
  ARM: shmobile: Remove KZM9D reference DTS
  ARM: shmobile: Let KZM9D multiplatform boot with KZM9D DTB
  ARM: shmobile: Remove non-multiplatform KZM9D reference support
  ARM: shmobile: Use KZM9D without reference for multiplatform
  ARM: shmobile: Sync KZM9D DTS with KZM9D reference DTS
  ...
2013-11-11 16:57:16 +09:00
Linus Torvalds
aac59e3efc ARM: SoC platform changes for 3.13
New and updated SoC support. Among the things new for this release are:
 
 - More support for the AM33xx platforms from TI
 - Tegra 124 support, and some updates to older tegra families as well
 - imx cleanups and updates across the board
 - A rename of Broadcom's Mobile platforms which were introduced as ARCH_BCM,
   and turned out to be too broad a name. New name is ARCH_BCM_MOBILE.
 - A whole bunch of updates and fixes for integrator, making the platform code
   more modern and switches over to DT-only booting.
 - Support for two new Renesas shmobile chipsets. Next up for them is more work
   on consolidation instead of introduction of new non-multiplatform SoCs, we're
   all looking forward to that!
 - Misc cleanups for older Samsung platforms, some Allwinner updates, etc.
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "New and updated SoC support.  Among the things new for this release
  are:

   - More support for the AM33xx platforms from TI
   - Tegra 124 support, and some updates to older tegra families as well
   - imx cleanups and updates across the board
   - A rename of Broadcom's Mobile platforms which were introduced as
     ARCH_BCM, and turned out to be too broad a name.  New name is
     ARCH_BCM_MOBILE.
   - A whole bunch of updates and fixes for integrator, making the
     platform code more modern and switches over to DT-only booting.
   - Support for two new Renesas shmobile chipsets.  Next up for them is
     more work on consolidation instead of introduction of new
     non-multiplatform SoCs, we're all looking forward to that!
   - Misc cleanups for older Samsung platforms, some Allwinner updates,
     etc"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (159 commits)
  ARM: bcm281xx: Add ARCH_BCM_MOBILE to bcm config
  ARM: bcm_defconfig: Run "make savedefconfig"
  ARM: bcm281xx: Add ARCH Timers to config
  rename ARCH_BCM to ARCH_BCM_MOBILE (mach-bcm)
  ARM: vexpress: Enable platform-specific options in defconfig
  ARM: vexpress: Make defconfig work again
  ARM: sunxi: remove .init_time hooks
  ARM: imx: enable suspend for imx6sl
  ARM: imx: ensure dsm_request signal is not asserted when setting LPM
  ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter()
  ARM: imx6q: move low-power code out of clock driver
  ARM: imx: drop extern with function prototypes in common.h
  ARM: imx: reset core along with enable/disable operation
  ARM: imx: do not return from imx_cpu_die() call
  ARM: imx_v6_v7_defconfig: Select CONFIG_PROVE_LOCKING
  ARM: imx_v6_v7_defconfig: Enable LEDS_GPIO related options
  ARM: mxs_defconfig: Turn off CONFIG_DEBUG_GPIO
  ARM: imx: replace imx6q_restart() with mxc_restart()
  ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt
  ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt
  ...
2013-11-11 16:49:45 +09:00
Linus Torvalds
21604cdcdc ARM: SoC cleanups for 3.13
This branch contains code cleanups, moves and removals for 3.13.
 
 Qualcomm msm targets had a bunch of code removal for legacy non-DT
 platforms. Nomadik saw more device tree conversions and cleanup of old
 code. Tegra has some code refactoring, etc.
 
 One longish patch series from Sebastian Hasselbarth changes the init_time
 hooks and tries to use a generic implementation for most platforms,
 since they were all doing more or less the same things.
 
 Finally the "shark" platform is removed in this release. It's been
 abandoned for a while and nobody seems to care enough to keep it
 around. If someone comes along and wants to resurrect it, the removal
 can easily be reverted and code brought back.
 
 Beyond this, mostly a bunch of removals of stale content across the
 board, etc.
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Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "This branch contains code cleanups, moves and removals for 3.13.

  Qualcomm msm targets had a bunch of code removal for legacy non-DT
  platforms.  Nomadik saw more device tree conversions and cleanup of
  old code.  Tegra has some code refactoring, etc.

  One longish patch series from Sebastian Hasselbarth changes the
  init_time hooks and tries to use a generic implementation for most
  platforms, since they were all doing more or less the same things.

  Finally the "shark" platform is removed in this release.  It's been
  abandoned for a while and nobody seems to care enough to keep it
  around.  If someone comes along and wants to resurrect it, the removal
  can easily be reverted and code brought back.

  Beyond this, mostly a bunch of removals of stale content across the
  board, etc"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (79 commits)
  ARM: gemini: convert to GENERIC_CLOCKEVENTS
  ARM: EXYNOS: remove CONFIG_MACH_EXYNOS[4, 5]_DT config options
  ARM: OMAP3: control: add API for setting IVA bootmode
  ARM: OMAP3: CM/control: move CM scratchpad save to CM driver
  ARM: OMAP3: McBSP: do not access CM register directly
  ARM: OMAP3: clock: add API to enable/disable autoidle for a single clock
  ARM: OMAP2: CM/PM: remove direct register accesses outside CM code
  MAINTAINERS: Add patterns for DTS files for AT91
  ARM: at91: remove init_machine() as default is suitable
  ARM: at91/dt: split sama5d3 peripheral definitions
  ARM: at91/dt: split sam9x5 peripheral definitions
  ARM: Remove temporary sched_clock.h header
  ARM: clps711x: Use linux/sched_clock.h
  MAINTAINERS: Add DTS files to patterns for Samsung platform
  ARM: EXYNOS: remove unnecessary header inclusions from exynos4/5 dt machine file
  ARM: tegra: fix ARCH_TEGRA_114_SOC select sort order
  clk: nomadik: fix missing __init on nomadik_src_init
  ARM: drop explicit selection of HAVE_CLK and CLKDEV_LOOKUP
  ARM: S3C64XX: Kill CONFIG_PLAT_S3C64XX
  ASoC: samsung: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support
  ...
2013-11-11 16:42:43 +09:00
Linus Torvalds
beb5bfe424 ARM: SoC low-priority fixes for 3.13
A set of fixes for various platforms that weren't considered bad enough
 to include in 3.12 (nor -stable). Mostly simple typo fixes, etc.
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Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC low-priority fixes from Olof Johansson:
 "A set of fixes for various platforms that weren't considered bad
  enough to include in 3.12 (nor -stable).  Mostly simple typo fixes,
  etc"

* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP2+: irq, AM33XX add missing register check
  ARM: OMAP2+: wakeupgen: AM43x adaptation
  ARM: OMAP1: Fix a bunch of GPIO related section warnings after initdata got corrected
  ARM: dts: fix PL330 MDMA1 address in DT for Universal C210 board
  ARM: dts: Work around lack of cpufreq regulator lookup for exynos4210-origen and trats boards
  ARM: dts: Fix typo earlyprintk in exynos5440-sd5v1 and ssdk5440 boards
  ARM: dts: Correct typo in use of samsung,pin-drv for exynos5250
  ARM: rockchip: remove obsolete rockchip,config properties
  ARM: rockchip: fix wrong use of non-existent CONFIG_LOCAL_TIMERS
  ARM: mach-omap1: Fix omap1510_fpga_init_irq() implicit declarations.
  ARM: OMAP1: fix incorrect placement of __initdata tag
  ARM: OMAP: remove deprecated IRQF_DISABLED
  ARM: OMAP2+: throw the die id into the entropy pool
2013-11-11 16:35:29 +09:00
Linus Torvalds
05ad391dbc Main features:
- Ticket-based spinlock implementation and lockless lockref support
 - Big endian support
 - CPU hotplug support, currently for PSCI (Power State Coordination
   Interface) capable firmware
 - Virtual address space extended to 42-bit in the 64K page configuration
   (maximum VA space with 2 levels of page tables)
 - Compat (AArch32) kuser helpers updated to ARMv8 (make use of
   load-acquire/store-release instructions)
 - Code cleanup, defconfig update and minor fixes
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull ARM64 update from Catalin Marinas:
 "Main features:
   - Ticket-based spinlock implementation and lockless lockref support
   - Big endian support
   - CPU hotplug support, currently for PSCI (Power State Coordination
     Interface) capable firmware
   - Virtual address space extended to 42-bit in the 64K page
     configuration (maximum VA space with 2 levels of page tables)
   - Compat (AArch32) kuser helpers updated to ARMv8 (make use of
     load-acquire/store-release instructions)
   - Code cleanup, defconfig update and minor fixes"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (43 commits)
  ARM64: /proc/interrupts: display IPIs of online CPUs only
  arm64: locks: Remove CONFIG_GENERIC_LOCKBREAK
  arm64: KVM: vgic: byteswap GICv2 access on world switch if BE
  arm64: KVM: initialize HYP mode following the kernel endianness
  arm64: compat: Clear the IT state independent of the 32-bit ARM or Thumb-2 mode
  arm64: Use 42-bit address space with 64K pages
  arm64: module: ensure instruction is little-endian before manipulation
  arm64: defconfig: Enable CONFIG_PREEMPT by default
  arm64: fix access to preempt_count from assembly code
  arm64: move enabling of GIC before CPUs are set online
  arm64: use generic RW_DATA_SECTION macro in linker script
  arm64: Slightly improve the warning on CPU0 enable-method
  ARM64: simplify cpu_read_bootcpu_ops using OF/DT helper
  ARM64: DT: define ARM64 specific arch_match_cpu_phys_id
  arm64: allow ioremap_cache() to use existing RAM mappings
  arm64: update 32-bit kuser helpers to ARMv8
  arm64: perf: fix event number mask
  arm64: kconfig: allow CPU_BIG_ENDIAN to be selected
  arm64: Fix the endianness of arch_spinlock_t
  arm64: big-endian: write CPU holding pen address as LE
  ...
2013-11-11 16:32:21 +09:00
Linus Torvalds
3ae423fe47 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 - Some minor work bringing the Cobalt MIPS platforms in line with other
   MIPS platforms
 - Make vmlinux.32 and vmlinux.64 build messages less verbose
 - Always register the R4k clocksource when selected, the clock source's
   rating will decide if this or another clock source is actually going
   to be used
 - Drop support for the Cisco (formerly Scientific Atlanta) PowerTV
   platform.  There appears to be nobody left who cares and the USB
   driver went stale while waiting for years to be merged
 - Some cleanup of Loongson 2 related #ifdefery
 - Various minor cleanups
 - Major rework on all things related to tracing / ptrace on MIPS,
   including switching the MIPS ELF core dumper to regsets, enabling the
   entries for SIGSYS in struct siginfo for MIPS, enabling ftrace
   syscall trace points
 - Some more work to bring DECstation support code in line with other
   more modern code
 - Report the name of the detected CPU, not just its CP0 PrID value
 - Some more BCM 47xx and atheros ath79xx work
 - Support for compressed kernels using the XZ compression scheme

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (53 commits)
  MIPS: remove duplicate define
  MIPS: Random whitespace clean-ups
  MIPS: traps: Reformat notify_die invocations to 80 columns.
  MIPS: Print correct PC in trace dump after NMI exception
  MIPS: kernel: cpu-probe: Report CPU id during probe
  MIPS: Remove unused defines in piix4.h
  MIPS: Get rid of hard-coded values for Malta PIIX4 fixups
  MIPS: Always register R4K clock when selected
  MIPS: Loongson: Get rid of Loongson 2 #ifdefery all over arch/mips.
  MIPS: cacheops.h: Increase indentation by one tab.
  MIPS: Remove bogus BUG_ON()
  MIPS: PowerTV: Remove support code.
  MIPS: ftrace: Add support for syscall tracepoints.
  MIPS: ptrace: Switch syscall reporting to tracehook_report_syscall_entry().
  MIPS: Move audit_arch() helper function to __syscall_get_arch().
  MIPS: Enable HAVE_ARCH_TRACEHOOK.
  MIPS: Switch ELF core dumper to use regsets.
  MIPS: Implement task_user_regset_view.
  MIPS: ptrace: Use tracehook helpers.
  MIPS: O32 / 32-bit: Always copy 4 stack arguments.
  ...
2013-11-08 08:32:58 +09:00
Linus Torvalds
280c84d1c1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
 "The bulk of the patches for the 3.13 merge window.

  Heiko spent quite a bit of work to improve the code generation for the
  kernel.  That includes the exploitation of the interlocked-access
  facility for the atomics and bitops implementation and the improvement
  for the -march and -mtune compiler settings.

  Another important change is the removal of the user_mode=home option,
  user processes now always run in primary space.  The storage keys are
  not initialized at system startup any more, with that the storage key
  removal work is complete.  For the PCI support the hibernation hooks
  have been implemented.

  And as usual cleanup and fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (62 commits)
  s390/scm_blk: fix endless loop for requests != REQ_TYPE_FS
  s390/mm,tlb: correct tlb flush on page table upgrade
  s390/mm: page_table_realloc returns failure
  s390: allow to set gcc -mtune flag
  s390/percpu: remove this_cpu_xor() implementation
  s390/vtime: correct idle time calculation
  s390/time: fix get_tod_clock_ext inline assembly
  tty/hvc_iucv: remove redundant NULL check
  s390/dasd: Write to profile data area only if it is available
  s390: convert use of typedef ctl_table to struct ctl_table
  s390/pci: cleanup function information block
  s390/pci: remove CONFIG_PCI_DEBUG dependancy
  s390/pci: message cleanup
  Update default configuration
  s390: add a couple of useful defconfigs
  s390/percpu: make use of interlocked-access facility 1 instructions
  s390/percpu: use generic percpu ops for CONFIG_32BIT
  s390/compat: make psw32_user_bits a constant value again
  s390: fix handling of runtime instrumentation psw bit
  s390: fix save and restore of the floating-point-control register
  ...
2013-11-08 08:24:38 +09:00
Helge Deller
dce0ce46ca parisc: add generic 32- and 64-bit defconfigs
New defconfigs which should be able to boot on any 32/64bit machine.
Many drivers are selected to be compiled-in to avoid the need for an
additional initrd and still being able to boot.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 23:07:22 +01:00
Helge Deller
1f2048fd8b parisc: signal fixup - SIGBUS vs. SIGSEGV
Clean up code to send correct signal on invalid memory accesses:
Send SIGBUS instead of SIGSEGV for memory accesses outside of mmap'ed
areas

This fixes the mmap13 testcase from the Linux Test Project.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:29:24 +01:00
Helge Deller
63379c1353 parisc: implement full version of access_ok()
Up to now PA-RISC could live with a trivial version of access_ok().
Our fault handlers can correctly handle fault cases.

But testcases showed that we need a better access check else we won't
always return correct errno failure codes to userspace.

Problem showed up during 32bit userspace tests in which writev() used a
32bit memory area and length which would then wrap around on 64bit
kernel.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:29:14 +01:00
Helge Deller
3a7452b444 parisc: correctly display number of active CPUs
In case we fail to power up other CPUs in a SMP system, the kernel
currently shows a wrong number of online CPUs. This change makes the
output more verbose on how many of the CPUs are online. Example:

CPU(s): 1 out of 2 PA8800 (Mako) at 900.000000 MHz online.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:29:05 +01:00
Helge Deller
6f0c4aa61d parisc: do not count IPI calls twice
The number of IPI calls is already visible as per-cpu IPI irq counters
in/proc/cpuinfo, so let's drop this additional counting.

This partly reverts:
cd85d55 parisc: more irq statistics in /proc/interrupts

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:28:54 +01:00
Helge Deller
f6d12eefcd parisc: make udelay() SMP-safe
Each CPU has it's own Control Register 16 (CR16) which is used as time source
for the udelay() function. But since the CR16 registers across different CPUs
are not synced, we need to recalculate the loop count if we get switched away
to ensure that we really delay as much time as requested.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:28:26 +01:00
Michael Opdenacker
e4be260d15 parisc: remove duplicate define
This patch removes a duplicate define from
arch/parisc/math-emu/float.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:28:15 +01:00
Helge Deller
b0756b5ade parisc: make "make install" not depend on vmlinux
Install targets (install, zinstall, uinstall) on parisc have a
dependency to vmlinux. This may cause parts of the kernel to be rebuilt
during installation. We must avoid this since this may run as root.
Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus
emphasized this in:

http://lkml.org/lkml/2013/7/10/600

So on parisc and maybe other archs we need the same as for x86:

1648e4f8 x86, kbuild: make "make install" not depend on vmlinux

This parisc patch was inspired by:

19514fc6 arm, kbuild: make "make install" not depend on vmlinux

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:28:06 +01:00
Helge Deller
527973c840 parisc: add kernel audit feature
Implement missing functions for parisc to provide kernel audit feature.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:27:20 +01:00
Helge Deller
61dbbaeb86 parisc: provide macro to create exception table entries
Provide a macro ASM_EXCEPTIONTABLE_ENTRY() to create exception table
entries and convert all open-coded places to use that macro.

This patch is a first step toward creating a exception table which only
holds 32bit pointers even on a 64bit kernel. That way in my own kernel
I was able to reduce the in-kernel exception table from 44kB to 22kB.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-07 22:25:33 +01:00
Sudeep KarkadaNagesha
67317c2689 ARM64: /proc/interrupts: display IPIs of online CPUs only
The non-IPI interrupts are displayed only for the online cpus from
show_interrupts in kernel/irq/proc.c before calling arch_show_interrupts().
As a result, the column headers and the IPI count don't match if any
CPU is offline.

This patch fixes show_ipi_list to display IPIs for online CPUs only.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-11-07 17:26:54 +00:00
Vineet Gupta
737d5b980b ARC: [plat-arcfpga] defconfig update
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-11-07 14:34:32 +05:30
Jiang Liu
06b93c347c smp, ARC: kill SMP single function call interrupt
Commit 9a46ad6d6d "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-11-07 14:34:31 +05:30
Vineet Gupta
7d0857a54a ARC: [SMP] Disallow RTSC
RTSC is strictly incore and must not be allowed in SMP configs

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-11-07 14:34:31 +05:30
Linus Torvalds
0b1e73ed22 Staging driver update for 3.13-rc1
Here's the big drivers/staging/ update for 3.13-rc1.
 
 Nothing major here, just a _ton_ of fixes and cleanups, mostly driven by
 the new round of OPW applicants, but also there are lots of other people
 doing staging tree cleanups these days in order to help get the drivers
 into mergable shape.
 
 We also merge, and then revert, the ktap code, as Ingo and the other
 perf/ftrace developers feel it should go into the "real" part of the
 kernel with only a bit more work, so no need to put it in staging for
 now.
 
 All of this has 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-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver update from Greg KH:
 "Here's the big drivers/staging/ update for 3.13-rc1.

  Nothing major here, just a _ton_ of fixes and cleanups, mostly driven
  by the new round of OPW applicants, but also there are lots of other
  people doing staging tree cleanups these days in order to help get the
  drivers into mergable shape.

  We also merge, and then revert, the ktap code, as Ingo and the other
  perf/ftrace developers feel it should go into the "real" part of the
  kernel with only a bit more work, so no need to put it in staging for
  now.

  All of this has been in linux-next for a while with no reported
  issues"

* tag 'staging-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1045 commits)
  staging: drm/imx: fix return value check in ipu_add_subdevice_pdata()
  Staging: zram: Fix access of NULL pointer
  Staging: zram: Fix variable dereferenced before check
  Staging: rtl8187se: space prohibited before semicolon in r8185b_init.c
  Staging: rtl8187se: fix space prohibited after that open parenthesis '(' in r8185b_init.c
  Staging: rtl8187se: fix braces {} are not necessary for single statement blocks in r8185b_init.c
  Staging: rtl8187se: fix trailing whitespace in r8185b_init.c
  Staging: rtl8187se: fix please, no space before tabs in r8185b_init.c
  drivers/staging/nvec/Kconfig: remove trailing whitespace
  Staging: dwc2: Fix variable dereferenced before check
  Staging: xgifb: fix braces {} are not necessary for any arm of this statement
  staging: rtl8192e: remove unneeded semicolons
  staging: rtl8192e: use true and false for bool variables
  staging: ft1000: return values corrected in scram_start_dwnld
  staging: ft1000: change values of status return variable in write_dpram32_and_check
  staging: bcm: Remove unnecessary pointer casting
  imx-drm: ipuv3-crtc: Invert IPU DI0 clock polarity
  staging: r8188eu: Fix sparse warnings in rtl_p2p.c
  staging: r8188eu: Fix sparse warnings in rtw_mlme_ext.c
  staging: r8188eu: Fix sparse warnings in rtl8188e.cmd.c
  ...
2013-11-07 15:07:58 +09:00
Linus Torvalds
0324e74534 Driver Core / sysfs patches for 3.13-rc1
Here's the big driver core / sysfs update for 3.13-rc1.
 
 There's lots of dev_groups updates for different subsystems, as they all
 get slowly migrated over to the safe versions of the attribute groups
 (removing userspace races with the creation of the sysfs files.)  Also
 in here are some kobject updates, devres expansions, and the first round
 of Tejun's sysfs reworking to enable it to be used by other subsystems
 as a backend for an in-kernel filesystem.
 
 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 'driver-core-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core / sysfs patches from Greg KH:
 "Here's the big driver core / sysfs update for 3.13-rc1.

  There's lots of dev_groups updates for different subsystems, as they
  all get slowly migrated over to the safe versions of the attribute
  groups (removing userspace races with the creation of the sysfs
  files.) Also in here are some kobject updates, devres expansions, and
  the first round of Tejun's sysfs reworking to enable it to be used by
  other subsystems as a backend for an in-kernel filesystem.

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

* tag 'driver-core-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (83 commits)
  sysfs: rename sysfs_assoc_lock and explain what it's about
  sysfs: use generic_file_llseek() for sysfs_file_operations
  sysfs: return correct error code on unimplemented mmap()
  mdio_bus: convert bus code to use dev_groups
  device: Make dev_WARN/dev_WARN_ONCE print device as well as driver name
  sysfs: separate out dup filename warning into a separate function
  sysfs: move sysfs_hash_and_remove() to fs/sysfs/dir.c
  sysfs: remove unused sysfs_get_dentry() prototype
  sysfs: honor bin_attr.attr.ignore_lockdep
  sysfs: merge sysfs_elem_bin_attr into sysfs_elem_attr
  devres: restore zeroing behavior of devres_alloc()
  sysfs: fix sysfs_write_file for bin file
  input: gameport: convert bus code to use dev_groups
  input: serio: remove bus usage of dev_attrs
  input: serio: use DEVICE_ATTR_RO()
  i2o: convert bus code to use dev_groups
  memstick: convert bus code to use dev_groups
  tifm: convert bus code to use dev_groups
  virtio: convert bus code to use dev_groups
  ipack: convert bus code to use dev_groups
  ...
2013-11-07 11:42:15 +09:00
Linus Torvalds
c287322c3a USB driver update for 3.13-rc1
Here's the big USB driver update for 3.13-rc1.
 
 It includes the usual xhci changes, EHCI updates to get the scheduling
 of USB transactions working better, and a raft of gadget and musb
 updates as well.
 
 All of this has 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 'usb-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB driver update from Greg KH:
 "Here's the big USB driver update for 3.13-rc1.

  It includes the usual xhci changes, EHCI updates to get the scheduling
  of USB transactions working better, and a raft of gadget and musb
  updates as well.

  All of this has been in linux-next for a while with no reported
  issues"

* tag 'usb-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (305 commits)
  USB: Maintainers change for usb serial drivers
  usb: usbtest: support container id descriptor test
  usb: usbtest: support superspeed device capbility descriptor test
  usb: usbtest: support usb2 extension descriptor test
  usb: chipidea: only get vbus regulator for non-peripheral mode
  USB: ehci-atmel: add usb_clk for transition to CCF
  usb: cdc-wdm: ignore speed change notifications
  USB: cdc-wdm: support back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications
  usbatm: Fix dynamic_debug / ratelimited atm_dbg and atm_rldbg macros
  printk: pr_debug_ratelimited: check state first to reduce "callbacks suppressed" messages
  usb: usbtest: support bos descriptor test for usb 3.0
  USB: phy: samsung: Support multiple PHYs of same type
  usb: wusbcore: change WA_SEGS_MAX to a legal value
  usb: wusbcore: add a quirk for Alereon HWA device isoc behavior
  usb: wusbcore: combine multiple isoc frames in a single transfer request.
  usb: wusbcore: set the RPIPE wMaxPacketSize value correctly
  usb: chipidea: host: more enhancement when ci->hcd is NULL
  usb: ohci: remove ep93xx bus glue platform driver
  usb: usbtest: fix checkpatch warning as sizeof code style
  UWB: clean up attribute use by using ATTRIBUTE_GROUPS()
  ...
2013-11-07 09:19:48 +09:00
Michael Opdenacker
723ff79432 MIPS: remove duplicate define
This patch removes a duplicate define from
arch/mips/boot/ecoff.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/6081/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-11-06 15:51:19 +01:00
Catalin Marinas
61c77e0802 arm64: locks: Remove CONFIG_GENERIC_LOCKBREAK
Commit 52ea2a560a (arm64: locks: introduce ticket-based spinlock
implementation) introduces the arch_spin_is_contended() function making
CONFIG_GENERIC_LOCKBREAK unnecessary.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
2013-11-06 11:42:41 +00:00
Marc Zyngier
c5b2c0f520 arm64: KVM: vgic: byteswap GICv2 access on world switch if BE
Ensure that accesses to the GICH_* registers are byteswapped
when the kernel is compiled as big-endian.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-11-06 10:10:12 +00:00
Marc Zyngier
18ea3dbc9e arm64: KVM: initialize HYP mode following the kernel endianness
Force SCTLR_EL2.EE to 1 if the kernel is compiled as BE.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-11-06 10:10:01 +00:00
Vineet Gupta
57e26e5745 ARC: [SMP] Fix build failures for large NR_CPUS
ST.as only takes S9 (255) for offset. This was going out of range when
accessing a task_struct field with 4k NR_CPUS (due to 128b of coumaks
itself in there).

Workaround by using an intermediate register to do the address scaling.

There is some duplication of fix for ctx_sw.c and ctx_sw_asm.S however
given that C version will go away soon I'm not bothering to factor out
the common code.

Reported-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-11-06 10:41:46 +05:30
Noam Camus
3aa4f80e41 ARC: [SMP] enlarge possible NR_CPUS
Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-11-06 10:41:46 +05:30
Vineet Gupta
5ea72a9026 ARC: [SMP] TLB flush
- Add mm_cpumask setting (aggregating only, unlike some other arches)
  used to restrict the TLB flush cross-calling

- cross-calling versions of TLB flush routines (thanks to Noam)

Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-11-06 10:41:45 +05:30