Commit Graph

20133 Commits

Author SHA1 Message Date
Chen-Yu Tsai
938dfdaa3c net: stmmac: Allocate and pass soc/board specific data to callbacks
The current .init and .exit callbacks requires access to driver
private data structures. This is not a good seperation and abstraction.

Instead, we add a new .setup callback for allocating private data, and
pass the returned pointer to the other callbacks.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19 20:02:02 -08:00
Chen-Yu Tsai
c5e4ddbdfa net: stmmac: Add support for optional reset control
The DWMAC has a reset assert line, which is used on some SoCs. Add an
optional reset control to stmmac driver core.

To support reset control deferred probing, this patch changes the driver
probe function to return the actual error, instead of just -EINVAL.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19 20:02:02 -08:00
Sergei Shtylyov
2c2dc1619e DT: net: davinci_emac: "phy-handle" property is actually optional
Though described as required, the "phy-handle" property for the DaVinci EMAC
binding is actually optional, as the driver will happily function without it,
assuming 100/FULL link; the property is not specified  either in the example
device node,  or in the actual EMAC device nodes for DA850 and AM3517 device
trees.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19 20:02:02 -08:00
Florent Fourcot
6444f72b4b ipv6: add flowlabel_consistency sysctl
With the introduction of IPV6_FL_F_REFLECT, there is no guarantee of
flow label unicity. This patch introduces a new sysctl to protect the old
behaviour, enable by default.

Changelog of V3:
 * rename ip6_flowlabel_consistency to flowlabel_consistency
 * use net_info_ratelimited()
 * checkpatch cleanups

Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19 17:12:31 -08:00
Dave Airlie
cfd72a4c20 Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
drm-intel-next-2014-01-10:
- final bits for runtime D3 on Haswell from Paul (now enabled fully)
- parse the backlight modulation freq information in the VBT from Jani
  (but not yet used)
- more watermark improvements from Ville for ilk-ivb and bdw
- bugfixes for fastboot from Jesse
- watermark fix for i830M (but not yet everything)
- vlv vga hotplug w/a (Imre)
- piles of other small improvements, cleanups and fixes all over

Note that the pull request includes a backmerge of the last drm-fixes
pulled into Linus' tree - things where getting a bit too messy. So the
shortlog also contains a bunch of patches from Linus tree. Please yell if
you want me to frob it for you a bit.

* 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel: (609 commits)
  drm/i915/bdw: make sure south port interrupts are enabled properly v2
  drm/i915: Include more information in disabled hotplug interrupt warning
  drm/i915: Only complain about a rogue hotplug IRQ after disabling
  drm/i915: Only WARN about a stuck hotplug irq ONCE
  drm/i915: s/hotplugt_status_gen4/hotplug_status_g4x/
2014-01-20 10:21:54 +10:00
Stefan Richter
fcd46b3442 firewire: Enable remote DMA above 4 GB
This makes all of a machine's memory accessible to remote debugging via
FireWire, using the physical response unit (i.e. RDMA) of OHCI-1394 link
layer controllers.

This requires actual support by the controller.  The only ones currently
known to support it are Agere/LSI FW643.  Most if not all other OHCI-1394
controllers do not implement the optional Physical Upper Bound register.
With them, RDMA will continue to be limited to the lowermost 4 GB.

firewire-ohci's startup message in the kernel log is augmented to tell
whether the controller does expose more than 4 GB to RDMA.

While OHCI-1394 allows for a maximum Physical Upper Bound of
0xffff'0000'0000 (near 256 TB), this implementation sets it to
0x8000'0000'0000 (128 TB) in order to avoid interference with applications
that require interrupt-served asynchronous request reception at
respectively low addresses.

Note, this change does not switch remote DMA on.  It only increases the
range of remote access to all memory (instead of just 4 GB) whenever
remote DMA was switched on by other means.  The latter is achieved by
setting firewire-ohci's remote_dma parameter, or if the physical DMA
filter is opened through firewire-sbp2.

Derived from patch "firewire: Enable physical DMA above 4GB" by
Peter Hurley <peter@hurleysoftware.com> from March 27, 2013.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2014-01-20 01:11:13 +01:00
Tang Yuantian
4b3cbc82a0 clk: corenet: Adds the clock binding
Adds the clock bindings for Freescale PowerPC CoreNet platforms

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
[scottwood@freescale.com: fixed clock-frequency in example]
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-17 19:01:27 -06:00
Zhangfei Gao
0e662440e9 mmc: dw_mmc: k3: remove clk_table
Remove clk_table and directly use ios->clock as clock source rate.
Abstract init clock rate and max clock limitation in clk.c

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
2014-01-17 17:59:17 -05:00
Lothar Waßmann
9b9900aa60 DT: Add vendor prefix for Emerging Display Technologies
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2014-01-17 16:16:24 -06:00
Richard Guy Briggs
f3411cb2b2 audit: whitespace fix in kernel-parameters.txt
Fixup caught by checkpatch.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
2014-01-17 17:15:02 -05:00
Florian Vaussard
4237e04ff5 of: add vendor prefixe for EPFL
Using "epfl" for Ecole Polytechnique Fédérale de Lausanne.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
2014-01-17 16:06:21 -06:00
Florian Vaussard
69bd134fb8 of: add vendor prefix for Gumstix
Using "gumstix" for Gumstix Inc.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
2014-01-17 16:06:20 -06:00
Lothar Waßmann
aa3491aacf of: add vendor prefix for Ka-Ro electronics GmbH
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2014-01-17 16:05:28 -06:00
Rob Herring
361128fcbf Merge remote-tracking branch 'grant/devicetree/next' into for-3.14 2014-01-17 16:01:27 -06:00
Tero Kristo
24582b3407 CLK: TI: add interface clock support for OMAP3
OMAP3 has interface clocks in addition to functional clocks, which
require special handling for the autoidle and idle status register
offsets mainly.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:35:45 -08:00
J Keerthy
3cf467a996 CLK: TI: DRA7: Add APLL support
The patch adds support for DRA7 PCIe APLL. The APLL
sources the optional functional clocks for PCIe module.

APLL stands for Analog PLL. This is different when comapred
with DPLL meaning Digital PLL, the phase detection is done
using an analog circuit.

Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:35:31 -08:00
Tero Kristo
6a369c584f clk: ti: add support for basic mux clock
ti,mux-clock provides now a binding for basic mux support. This is just
using the basic clock type.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:35:17 -08:00
Tero Kristo
3cd4a59622 CLK: TI: add support for clockdomain binding
Some OMAP clocks require knowledge about their parent clockdomain for
book keeping purposes. This patch creates a new DT binding for TI
clockdomains, which act as a collection of device clocks. Clockdomain
itself is rather misleading name for the hardware functionality, as at
least on OMAP4 / OMAP5 / DRA7 the clockdomains can be collections of either
clocks and/or IP blocks, thus idle-domain or such might be more appropriate.
For most cases on these SoCs, the kernel doesn't even need the information
and the mappings can be ignored.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:35:13 -08:00
Tero Kristo
f60b1ea5ea CLK: TI: add support for gate clock
This patch adds support for TI specific gate clocks. These behave as basic
gate-clock, but have different ops / hw-ops for controlling the actual
gate, for example waiting until the clock is ready. Several sub-types
are supported:
- ti,gate-clock: basic gate clock with default ops/hwops
- ti,clkdm-gate-clock: clockdomain level gate control
- ti,dss-gate-clock: gate clock with DSS specific hardware handling
- ti,am35xx-gate-clock: gate clock with AM35xx specific hardware handling
- ti,hsdiv-gate-clock: gate clock with OMAP36xx hardware errata handling

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:35:10 -08:00
Tero Kristo
1f847c65fd clk: ti: add support for TI fixed factor clock
This behaves exactly in similar manner to basic fixed-factor-clock, but
adds a few properties on top for handling clock hardware autoidling.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:35:07 -08:00
Tero Kristo
b4761198bf CLK: ti: add support for ti divider-clock
This patch adds support for TI divider clock binding, which simply uses
the basic clock divider to provide the features needed.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:35:04 -08:00
Tero Kristo
975e15487d clk: ti: add composite clock support
This is a multipurpose clock node, which contains support for multiple
sub-clocks. Uses basic composite clock type to implement the actual
functionality, and TI specific gate, mux and divider clocks.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:35:01 -08:00
Tero Kristo
b1a07b478b CLK: TI: add autoidle support
TI clk driver now routes some of the basic clocks through own
registration routine to allow autoidle support. This routine just
checks a couple of device node properties and adds autoidle support
if required, and just passes the registration forward to basic clocks.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:34:59 -08:00
Tero Kristo
f38b0dd63f CLK: TI: Add DPLL clock support
The OMAP clock driver now supports DPLL clock type. This patch also
adds support for DT DPLL nodes.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-17 12:34:55 -08:00
Lars Poeschel
4e47f91bf7 gpio: mcp23s08: Add irq functionality for i2c chips
This adds interrupt functionality for i2c chips to the driver.
They can act as a interrupt-controller and generate interrupts, if
the inputs change.
This is tested with a mcp23017 chip on an arm based platform.

v3:
- be a bit more clear that the irq functionality is also available
  on spi versions of the chips, but the linux driver does not support
  this yet

v2:
- some more word about irq-mirror property in binding doc
- use of_read_bool instead of of_find_property for
  "interrupt-contrller" and "irq-mirror"
- cache the "interrupt-controller" for remove function
- do set the irq-mirror bit only if device is marked as
  interrupt-controller
- do create the irq mapping and setup of irq_desc of all possible
  interrupts in probe path instead of in gpio_to_irq
- mark gpios as in use as interrupts in irq in irq_startup and
  unlock it in irq_shutdown
- rename virq to child_irq
- remove dev argument from mcp23s08_irq_setup function
- move gpiochip_add before mcp23s08_irq_setup in probe path

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-17 15:30:14 +01:00
Rafael J. Wysocki
7744064731 Merge branch 'pm-cpufreq'
* pm-cpufreq: (40 commits)
  thermal: exynos: boost: Automatic enable/disable of BOOST feature (at Exynos4412)
  cpufreq: exynos4x12: Change L0 driver data to CPUFREQ_BOOST_FREQ
  Documentation: cpufreq / boost: Update BOOST documentation
  cpufreq: exynos: Extend Exynos cpufreq driver to support boost
  cpufreq / boost: Kconfig: Support for software-managed BOOST
  acpi-cpufreq: Adjust the code to use the common boost attribute
  cpufreq: Add boost frequency support in core
  intel_pstate: Add trace point to report internal state.
  cpufreq: introduce cpufreq_generic_get() routine
  ARM: SA1100: Create dummy clk_get_rate() to avoid build failures
  cpufreq: stats: create sysfs entries when cpufreq_stats is a module
  cpufreq: stats: free table and remove sysfs entry in a single routine
  cpufreq: stats: remove hotplug notifiers
  cpufreq: stats: handle cpufreq_unregister_driver() and suspend/resume properly
  cpufreq: speedstep: remove unused speedstep_get_state
  powernow-k6: reorder frequencies
  powernow-k6: correctly initialize default parameters
  powernow-k6: disable cache when changing frequency
  Documentation: add ABI entry for intel_pstate
  cpufreq: exynos: Convert exynos-cpufreq to platform driver
  ...
2014-01-17 02:01:32 +01:00
Lukasz Majewski
0636f0c36a Documentation: cpufreq / boost: Update BOOST documentation
Since the support for software and hardware controlled boosting has
been added, update the corresponding documentation.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-01-17 02:00:45 +01:00
Rafael J. Wysocki
8341ecc9f4 Merge branches 'acpi-init' and 'acpi-hotplug'
* acpi-init:
  ACPI / init: Run acpi_early_init() before timekeeping_init()

* acpi-hotplug:
  ACPI / memhotplug: add parameter to disable memory hotplug
2014-01-17 01:57:26 +01:00
Mike Turquette
0099d88516 Merge remote-tracking branch 'linaro/clk-next' into clk-next 2014-01-16 13:13:46 -08:00
Soren Brinkmann
e2897d7e0b devicetree: macb: Document clock properties
The macb driver uses the clock bindings. Document the required
properties, especially the driver specific clock-names.

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2014-01-16 14:11:31 -06:00
Gerhard Sittig
6514dff933 dts: bindings: trivial clock bindings doc fixes
fix a typo in the "clock specifiers" discussion,
clarify that clock specifiers (the integer cells
part that goes with the phandle) may be empty

Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: devicetree@vger.kernel.org
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2014-01-16 14:11:30 -06:00
Stephen Boyd
2e84d75116 devicetree: bindings: Document qcom,mmcc
Document the multimedia clock controller found on Qualcomm devices

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-16 12:01:07 -08:00
Stephen Boyd
cc4f2fe467 devicetree: bindings: Document qcom,gcc
Document the global clock controller found on Qualcomm devices.

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-16 12:01:06 -08:00
Stephen Boyd
3fa2252b7a clk: Add set_rate_and_parent() op
Some of Qualcomm's clocks can change their parent and rate at the
same time with a single register write. Add support for this
hardware to the common clock framework by adding a new
set_rate_and_parent() op. When the clock framework determines
that both the parent and the rate are going to change during
clk_set_rate() it will call the .set_rate_and_parent() op if
available and fall back to calling .set_parent() followed by
.set_rate() otherwise.

Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-16 12:00:57 -08:00
Mike Snitzer
2e68c4e6ca dm cache: add policy name to status output
The cache's policy may have been established using the "default" alias,
which is currently the "mq" policy but the default policy may change in
the future.  It is useful to know exactly which policy is being used.

Add a 'real' member to the dm_cache_policy_type structure and have the
"default" dm_cache_policy_type point to the real "mq"
dm_cache_policy_type.  Update dm_cache_policy_get_name() to check if
real is set, if so report the name of the real policy (not the alias).

Requested-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-01-16 13:44:11 -05:00
Grant Likely
482c43419f dt/bindings: Remove device_type "serial" from marvell,mv64360-mpsc
device_type is deprecated. There is no need to check for it in device
driver code and no need to specify it in the device tree. Remove the
property from stock .dts files and remove the check for it from device
drivers. This change should be 100% backwards compatible with old device
trees.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-01-16 16:31:31 +00:00
Grant Likely
351291754d dt/bindings: remove device_type "network" references
device_type is deprecated and the kernel doesn't require it in most
cases. The only exceptions for flat tree users are the "gianfar",
"ucc_geth" and "ibm,emac" bindings, and arguably that requirement could
be relaxed for ucc_geth and ibm,emac (that is a task for separate
patches though).

This patch removes references to device_type="network" from the binding
documentation where possible and removes the properties from ARM and
microblaze dts files. This patch does not modify the powerpc .dts files
since there are a much larger number of them affected and I think the
ucc_geth, ibm,emac and gianfar users should be addressed before clearing
out the references to reduce the chance of breakage.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
2014-01-16 16:26:19 +00:00
Grant Likely
dae95c1f07 dt/bindings: remove users of device_type "mdio"
device_type is a deprecated property, but some MDIO bus nodes still have
it. Except for a couple of old binding (compatible="gianfar" and
compatible="ucc_geth_phy") the kernel doesn't look for
device_type="mdio" at all.

This patch removes all instances of device_type="mdio" from the binding
documentation and the .dts files.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-01-16 16:25:56 +00:00
Grant Likely
aadfb32bf6 dt/bindings: Remove references to linux,phandle properties
The linux,phandle property is essentially an internal structural element
of the DT data structure. The dtc toolchain takes care of maintaining it
at compile time. It does not need to appear as part of the binding
documentation. This patch removes it so that users don't think they need
to add a phandle property manually.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
2014-01-16 16:25:18 +00:00
Tejun Heo
6e1af69780 Merge branch 'for-3.13-fixes' into for-3.14
A scheduled horkage patch will conflict with HORKAGE changes in
for-3.13-fixes.  Pull in to avoid unnecessary merge conflicts.

Signed-off-by: Tejun Heo <tj@kernel.org>
2014-01-16 09:44:34 -05:00
Sherman Yin
9bb412e557 pinctrl: Add pinctrl binding for Broadcom Capri SoCs
Adds pinctrl driver devicetree binding for Broadcom Capri (BCM281xx) SoCs.

v4: Changed valid values for "bias-pull-up" property for I2C pins.
    Expanded pin configuration node example.
v3: Use generic pin config properties instead of brcm-specific ones.
    Clarified pin types (standard, i2c, hdmi).
v2: Use hyphens instead of underscore in DT property names.

Device tree bindings maintainers ECG:
           _             _          _        _        _
__________/ \   ________/ \   _____/ \   ___/ \   ___/ \   __
             \_/           \_/        \_/      \_/      \_/

Signed-off-by: Sherman Yin <syin@broadcom.com>
Reviewed-by: Christian Daudt <bcm@fixthebug.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-16 14:25:38 +01:00
Mark Brown
701caa51a2 Merge remote-tracking branches 'asoc/topic/adsp', 'asoc/topic/atmel', 'asoc/topic/bcm2835', 'asoc/topic/docs', 'asoc/topic/fsl', 'asoc/topic/generic', 'asoc/topic/kirkwood', 'asoc/topic/mc13783', 'asoc/topic/mxs', 'asoc/topic/nuc900', 'asoc/topic/sai', 'asoc/topic/sh', 'asoc/topic/ssm2602', 'asoc/topic/tlv320aic3x', 'asoc/topic/twl4030', 'asoc/topic/ux500', 'asoc/topic/width' and 'asoc/topic/x86' into for-tiwai 2014-01-16 12:44:01 +00:00
Grant Likely
40aad3c1a9 dt/bindings: Remove all references to device_type "ethernet-phy"
The device_type property is deprecated for the flattened device tree and
the value "ethernet-phy" has never been defined as having a useful
meaning. Neither the kernel nor u-boot depend on it. It should never
have appeared in PHY bindings. This patch removes all references to
"ethernet-phy" as a device_type value from the documentation and the
.dts files.

This patch was generated mechanically with the following command and
then verified by looking at the diff.

sed -i '/"ethernet-phy"/d' `git grep -l '"ethernet-phy"'`

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-01-16 11:11:51 +00:00
Prarit Bhargava
00159a2013 ACPI / memhotplug: add parameter to disable memory hotplug
When booting a kexec/kdump kernel on a system that has specific memory
hotplug regions the boot will fail with warnings like:

 swapper/0: page allocation failure: order:9, mode:0x84d0
 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-65.el7.x86_64 #1
 Hardware name: QCI QSSC-S4R/QSSC-S4R, BIOS QSSC-S4R.QCI.01.00.S013.032920111005 03/29/2011
  0000000000000000 ffff8800341bd8c8 ffffffff815bcc67 ffff8800341bd950
  ffffffff8113b1a0 ffff880036339b00 0000000000000009 00000000000084d0
  ffff8800341bd950 ffffffff815b87ee 0000000000000000 0000000000000200
 Call Trace:
  [<ffffffff815bcc67>] dump_stack+0x19/0x1b
  [<ffffffff8113b1a0>] warn_alloc_failed+0xf0/0x160
  [<ffffffff815b87ee>] ?  __alloc_pages_direct_compact+0xac/0x196
  [<ffffffff8113f14f>] __alloc_pages_nodemask+0x7ff/0xa00
  [<ffffffff815b417c>] vmemmap_alloc_block+0x62/0xba
  [<ffffffff815b41e9>] vmemmap_alloc_block_buf+0x15/0x3b
  [<ffffffff815b1ff6>] vmemmap_populate+0xb4/0x21b
  [<ffffffff815b461d>] sparse_mem_map_populate+0x27/0x35
  [<ffffffff815b400f>] sparse_add_one_section+0x7a/0x185
  [<ffffffff815a1e9f>] __add_pages+0xaf/0x240
  [<ffffffff81047359>] arch_add_memory+0x59/0xd0
  [<ffffffff815a21d9>] add_memory+0xb9/0x1b0
  [<ffffffff81333b9c>] acpi_memory_device_add+0x18d/0x26d
  [<ffffffff81309a01>] acpi_bus_device_attach+0x7d/0xcd
  [<ffffffff8132379d>] acpi_ns_walk_namespace+0xc8/0x17f
  [<ffffffff81309984>] ? acpi_bus_type_and_status+0x90/0x90
  [<ffffffff81309984>] ? acpi_bus_type_and_status+0x90/0x90
  [<ffffffff81323c8c>] acpi_walk_namespace+0x95/0xc5
  [<ffffffff8130a6d6>] acpi_bus_scan+0x8b/0x9d
  [<ffffffff81a2019a>] acpi_scan_init+0x63/0x160
  [<ffffffff81a1ffb5>] acpi_init+0x25d/0x2a6
  [<ffffffff81a1fd58>] ? acpi_sleep_proc_init+0x2a/0x2a
  [<ffffffff810020e2>] do_one_initcall+0xe2/0x190
  [<ffffffff819e20c4>] kernel_init_freeable+0x17c/0x207
  [<ffffffff819e18d0>] ? do_early_param+0x88/0x88
  [<ffffffff8159fea0>] ? rest_init+0x80/0x80
  [<ffffffff8159feae>] kernel_init+0xe/0x180
  [<ffffffff815cca2c>] ret_from_fork+0x7c/0xb0
  [<ffffffff8159fea0>] ? rest_init+0x80/0x80
 Mem-Info:
 Node 0 DMA per-cpu:
 CPU    0: hi:    0, btch:   1 usd:   0
 Node 0 DMA32 per-cpu:
 CPU    0: hi:   42, btch:   7 usd:   0
 active_anon:0 inactive_anon:0 isolated_anon:0
  active_file:0 inactive_file:0 isolated_file:0
  unevictable:0 dirty:0 writeback:0 unstable:0
  free:872 slab_reclaimable:13 slab_unreclaimable:1880
  mapped:0 shmem:0 pagetables:0 bounce:0
  free_cma:0

because the system has run out of memory at boot time.  This occurs
because of the following sequence in the boot:

Main kernel boots and sets E820 map.  The second kernel is booted with a
map generated by the kdump service using memmap= and memmap=exactmap.
These parameters are added to the kernel parameters of the kexec/kdump
kernel.   The kexec/kdump kernel has limited memory resources so as not
to severely impact the main kernel.

The system then panics and the kdump/kexec kernel boots (which is a
completely new kernel boot).  During this boot ACPI is initialized and the
kernel (as can be seen above) traverses the ACPI namespace and finds an
entry for a memory device to be hotadded.

ie)

  [<ffffffff815a1e9f>] __add_pages+0xaf/0x240
  [<ffffffff81047359>] arch_add_memory+0x59/0xd0
  [<ffffffff815a21d9>] add_memory+0xb9/0x1b0
  [<ffffffff81333b9c>] acpi_memory_device_add+0x18d/0x26d
  [<ffffffff81309a01>] acpi_bus_device_attach+0x7d/0xcd
  [<ffffffff8132379d>] acpi_ns_walk_namespace+0xc8/0x17f
  [<ffffffff81309984>] ? acpi_bus_type_and_status+0x90/0x90
  [<ffffffff81309984>] ? acpi_bus_type_and_status+0x90/0x90
  [<ffffffff81323c8c>] acpi_walk_namespace+0x95/0xc5
  [<ffffffff8130a6d6>] acpi_bus_scan+0x8b/0x9d
  [<ffffffff81a2019a>] acpi_scan_init+0x63/0x160
  [<ffffffff81a1ffb5>] acpi_init+0x25d/0x2a6

At this point the kernel adds page table information and the the kexec/kdump
kernel runs out of memory.

This can also be reproduced by using the memmap=exactmap and mem=X
parameters on the main kernel and booting.

This patchset resolves the problem by adding a kernel parameter,
acpi_no_memhotplug, to disable ACPI memory hotplug.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-01-16 01:43:49 +01:00
Eugene Crosser
9f48b9db9a qeth: bridgeport support - address notifications
Introduce functions to enable and disable bridgeport address
notification feature, sysfs attributes for access to these
functions from userspace, and udev events emitted when a host
joins or exits a bridgeport-enabled HiperSocket channel.

Signed-off-by: Eugene Crosser <eugene.crosser@ru.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 14:48:01 -08:00
Eugene Crosser
b4d72c08b3 qeth: bridgeport support - basic control
Introduce functions to assign roles and check state of bridgeport-capable
HiperSocket devices, and sysfs attributes providing access to these
functions from userspace. Introduce udev events emitted when the state
of a bridgeport device changes.

Signed-off-by: Eugene Crosser <eugene.crosser@ru.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 14:48:01 -08:00
HATAYAMA Daisuke
151e0c7de6 x86, apic, kexec: Add disable_cpu_apicid kernel parameter
Add disable_cpu_apicid kernel parameter. To use this kernel parameter,
specify an initial APIC ID of the corresponding CPU you want to
disable.

This is mostly used for the kdump 2nd kernel to disable BSP to wake up
multiple CPUs without causing system reset or hang due to sending INIT
from AP to BSP.

Kdump users first figure out initial APIC ID of the BSP, CPU0 in the
1st kernel, for example from /proc/cpuinfo and then set up this kernel
parameter for the 2nd kernel using the obtained APIC ID.

However, doing this procedure at each boot time manually is awkward,
which should be automatically done by user-land service scripts, for
example, kexec-tools on fedora/RHEL distributions.

This design is more flexible than disabling BSP in kernel boot time
automatically in that in kernel boot time we have no choice but
referring to ACPI/MP table to obtain initial APIC ID for BSP, meaning
that the method is not applicable to the systems without such BIOS
tables.

One assumption behind this design is that users get initial APIC ID of
the BSP in still healthy state and so BSP is uniquely kept in
CPU0. Thus, through the kernel parameter, only one initial APIC ID can
be specified.

In a comparison with disabled_cpu_apicid, we use read_apic_id(), not
boot_cpu_physical_apicid, because on some platforms, the variable is
modified to the apicid reported as BSP through MP table and this
function is executed with the temporarily modified
boot_cpu_physical_apicid. As a result, disabled_cpu_apicid kernel
parameter doesn't work well for apicids of APs.

Fixing the wrong handling of boot_cpu_physical_apicid requires some
reviews and tests beyond some platforms and it could take some
time. The fix here is a kind of workaround to focus on the main topic
of this patch.

Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Link: http://lkml.kernel.org/r/20140115064458.1545.38775.stgit@localhost6.localdomain6
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-01-15 09:19:20 -08:00
Laszlo Papp
4dfb0bd76b pinctrl: Fix some typos and grammar issues in the documentation
I had been trying to learn a bit more about the pinctrl subsystem, and I
realized several typos and grammar issues while going through the documentation.
I have probably not caught all the possible issues, but this change is
addressing several places for improvement.

Signed-off-by: Laszlo Papp <lpapp@kde.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-15 13:59:50 +01:00
Simon Guinot
b1f5c73bd5 ata: sata_mv: introduce compatible string "marvell, armada-370-sata"
The sata_mv driver supports the SATA IP found in several Marvell SoCs.
As some new SATA registers have been introduced with the Armada 370/XP
SoCs, a way to identify them is needed.

This patch introduces a new compatible string for the SATA IP found in
Armada 370/XP SoCs.

Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Lior Amsalem <alior@marvell.com>
Cc: stable@vger.kernel.org # v3.6+
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
2014-01-15 07:44:02 -05:00
Paolo Bonzini
ab53f22e2e Merge tag 'kvm-arm-for-3.14' of git://git.linaro.org/people/christoffer.dall/linux-kvm-arm into kvm-queue 2014-01-15 12:14:29 +01:00