Commit Graph

31801 Commits

Author SHA1 Message Date
Linus Torvalds
1ead658124 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer changes from Thomas Gleixner:
 "This assorted collection provides:

   - A new timer based timer broadcast feature for systems which do not
     provide a global accessible timer device.  That allows those
     systems to put CPUs into deep idle states where the per cpu timer
     device stops.

   - A few NOHZ_FULL related improvements to the timer wheel

   - The usual updates to timer devices found in ARM SoCs

   - Small improvements and updates all over the place"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  tick: Remove code duplication in tick_handle_periodic()
  tick: Fix spelling mistake in tick_handle_periodic()
  x86: hpet: Use proper destructor for delayed work
  workqueue: Provide destroy_delayed_work_on_stack()
  clocksource: CMT, MTU2, TMU and STI should depend on GENERIC_CLOCKEVENTS
  timer: Remove code redundancy while calling get_nohz_timer_target()
  hrtimer: Rearrange comments in the order struct members are declared
  timer: Use variable head instead of &work_list in __run_timers()
  clocksource: exynos_mct: silence a static checker warning
  arm: zynq: Add support for cpufreq
  arm: zynq: Don't use arm_global_timer with cpufreq
  clocksource/cadence_ttc: Overhaul clocksource frequency adjustment
  clocksource/cadence_ttc: Call clockevents_update_freq() with IRQs enabled
  clocksource: Add Kconfig entries for CMT, MTU2, TMU and STI
  sh: Remove Kconfig entries for TMU, CMT and MTU2
  ARM: shmobile: Remove CMT, TMU and STI Kconfig entries
  clocksource: armada-370-xp: Use atomic access for shared registers
  clocksource: orion: Use atomic access for shared registers
  clocksource: timer-keystone: Delete unnecessary variable
  clocksource: timer-keystone: introduce clocksource driver for Keystone
  ...
2014-04-01 11:00:07 -07:00
Linus Torvalds
01d5f3b598 Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
 "A lot of activities on libata side this time.

   - A lot of changes around ahci.  Various embedded platforms are
     implementing ahci controllers.  Some were built atop ahci_platform,
     others were doing their own things.  Hans made some structural
     changes to libahci and librarized ahci_platform so that ahci
     platform drivers can share more common code.  A couple platform
     drivers are added on top of that and several are added to replace
     older drivers which were doing their own things (older ones are
     scheduled to be removed).

   - Dan finishes the patchset to make libata PM operations
     asynchronous.  Combined with one patch being routed through scsi,
     this should speed resume measurably.

   - Various fixes and cleanups from Bartlomiej and others"

* 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (61 commits)
  ata: fix Marvell SATA driver dependencies
  ata: fix ARASAN CompactFlash PATA driver dependencies
  ata: remove superfluous casts
  ata: sata_highbank: remove superfluous cast
  ata: fix Calxeda Highbank SATA driver dependencies
  ata: fix R-Car SATA driver dependencies
  ARM: davinci: da850: update SATA AHCI support
  ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller
  ata: move library code from ahci_platform.c to libahci_platform.c
  ata: ahci_platform: fix ahci_platform_data->suspend method handling
  libata: remove unused ata_sas_port_async_resume() stub
  libata.h: add stub for ata_sas_port_resume
  libata: async resume
  libata, libsas: kill pm_result and related cleanup
  ata: Fix compiler warning with APM X-Gene host controller driver
  arm64: Add APM X-Gene SoC AHCI SATA host controller DTS entries
  ata: Add APM X-Gene SoC AHCI SATA host controller driver
  Documentation: Add documentation for the APM X-Gene SoC SATA host controller DTS binding
  arm64: Add APM X-Gene SoC 15Gbps Multi-purpose PHY DTS entries
  ata: ahci_sunxi: fix code formatting
  ...
2014-03-31 15:27:37 -07:00
Linus Torvalds
971eae7c99 Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler changes from Ingo Molnar:
 "Bigger changes:

   - sched/idle restructuring: they are WIP preparation for deeper
     integration between the scheduler and idle state selection, by
     Nicolas Pitre.

   - add NUMA scheduling pseudo-interleaving, by Rik van Riel.

   - optimize cgroup context switches, by Peter Zijlstra.

   - RT scheduling enhancements, by Thomas Gleixner.

  The rest is smaller changes, non-urgnt fixes and cleanups"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (68 commits)
  sched: Clean up the task_hot() function
  sched: Remove double calculation in fix_small_imbalance()
  sched: Fix broken setscheduler()
  sparc64, sched: Remove unused sparc64_multi_core
  sched: Remove unused mc_capable() and smt_capable()
  sched/numa: Move task_numa_free() to __put_task_struct()
  sched/fair: Fix endless loop in idle_balance()
  sched/core: Fix endless loop in pick_next_task()
  sched/fair: Push down check for high priority class task into idle_balance()
  sched/rt: Fix picking RT and DL tasks from empty queue
  trace: Replace hardcoding of 19 with MAX_NICE
  sched: Guarantee task priority in pick_next_task()
  sched/idle: Remove stale old file
  sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED
  cpuidle/arm64: Remove redundant cpuidle_idle_call()
  cpuidle/powernv: Remove redundant cpuidle_idle_call()
  sched, nohz: Exclude isolated cores from load balancing
  sched: Fix select_task_rq_fair() description comments
  workqueue: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE
  sys: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE
  ...
2014-03-31 11:21:19 -07:00
Linus Torvalds
462bf234a8 Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core locking updates from Ingo Molnar:
 "The biggest change is the MCS spinlock generalization changes from Tim
  Chen, Peter Zijlstra, Jason Low et al.  There's also lockdep
  fixes/enhancements from Oleg Nesterov, in particular a false negative
  fix related to lockdep_set_novalidate_class() usage"

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
  locking/mutex: Fix debug checks
  locking/mutexes: Add extra reschedule point
  locking/mutexes: Introduce cancelable MCS lock for adaptive spinning
  locking/mutexes: Unlock the mutex without the wait_lock
  locking/mutexes: Modify the way optimistic spinners are queued
  locking/mutexes: Return false if task need_resched() in mutex_can_spin_on_owner()
  locking: Move mcs_spinlock.h into kernel/locking/
  m68k: Skip futex_atomic_cmpxchg_inatomic() test
  futex: Allow architectures to skip futex_atomic_cmpxchg_inatomic() test
  Revert "sched/wait: Suppress Sparse 'variable shadowing' warning"
  lockdep: Change lockdep_set_novalidate_class() to use _and_name
  lockdep: Change mark_held_locks() to check hlock->check instead of lockdep_no_validate
  lockdep: Don't create the wrong dependency on hlock->check == 0
  lockdep: Make held_lock->check and "int check" argument bool
  locking/mcs: Allow architecture specific asm files to be used for contended case
  locking/mcs: Order the header files in Kbuild of each architecture in alphabetical order
  sched/wait: Suppress Sparse 'variable shadowing' warning
  hung_task/Documentation: Fix hung_task_warnings description
  locking/mcs: Allow architectures to hook in to contended paths
  locking/mcs: Micro-optimize the MCS code, add extra comments
  ...
2014-03-31 10:59:39 -07:00
Bartlomiej Zolnierkiewicz
080c492df0 ARM: davinci: da850: update SATA AHCI support
Update SATA AHCI support to make use of the new ahci_da850 host
driver (instead of the generic ahci_platform one) and remove
deprecated ahci_platform_data code.

Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2014-03-25 15:17:13 -04:00
Linus Torvalds
084c6c5013 ARM: SoC fixes for 3.14
Only two patches this time, one to fix ethernet probe order on at91 (better
 fix with proper device aliasing will be done for 3.15, this is stop-gap), and
 one update to MAINTAINERS due to Freescale moving their repo to kernel.org.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Only two patches this time, one to fix ethernet probe order on at91
  (better fix with proper device aliasing will be done for 3.15, this is
  stop-gap), and one update to MAINTAINERS due to Freescale moving their
  repo to kernel.org"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: at91: fix network interface ordering for sama5d36
  MAINTAINERS: update IMX kernel git tree
2014-03-22 09:13:13 -07:00
Soren Brinkmann
cd32529587 arm: zynq: Add support for cpufreq
The generic cpufreq-cpu0 driver can scale the CPU frequency on Zynq
SOCs. Add the required platform device to the BSP and appropriate
OPPs to the dts.

Cc: Rob Herring <robh+dt@kernel.org>
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: Russell King <linux@arm.linux.org.uk>
Cc: devicetree@vger.kernel.org
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2014-03-11 23:10:28 +01:00
Soren Brinkmann
61f1fc7e92 arm: zynq: Don't use arm_global_timer with cpufreq
The timer frequency of the arm_global_timer depends on the CPU
frequency. With cpufreq altering that frequency the arm_global_timer
does not maintain a stable time base. Therefore don't enable that timer
in case cpufreq is enabled.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2014-03-11 23:10:16 +01:00
Magnus Damm
aeb8fb7910 ARM: shmobile: Remove CMT, TMU and STI Kconfig entries
Now when drivers/clocksource/Kconfig has been
updated with entires for CMT, TMU, MTU2, and STI
it is safe to remove these from mach-shmobile.

Also select timers per SoC via SYS_SUPPORTS_xxx.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-03-11 23:05:09 +01:00
Maxime Ripard
b4f26440d9 ARM: sunxi: dt: Convert to the new clocksource compatible
Switch the device tree to the new compatibles introduced in the timer driver
to have a common pattern accross all Allwinner SoCs.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-03-11 23:04:50 +01:00
Linus Walleij
9affbd2458 ARM: u300: move timer driver to clocksource
Move the U300 timer driver down to the clocksource driver
subsystem and keep arch/arm clean.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-03-11 23:04:43 +01:00
Boris BREZILLON
f656d46bbb ARM: at91: fix network interface ordering for sama5d36
On the newly introduced sama5d36, Gigabit and 10/100 Ethernet network
interfaces are probed in a different order than for the sama5d35.
Moreover, users are accustomed to this order in bootloaders and backports
for older kernel revisions.
So this patch switches DT node order as it is done for the other dual-Ethernet
sama5d3 SoC.
Better interface numbering which does not depend on DT node order is being
developed for stronger interface identification.

Signed-off-by: Boris BREZILLON <b.brezillon.dev@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-11 12:49:10 -07:00
Bjorn Helgaas
36fc5500bb sched: Remove unused mc_capable() and smt_capable()
Remove mc_capable() and smt_capable().  Neither is used.

Both were added by 5c45bf279d ("sched: mc/smt power savings sched
policy").  Uses of both were removed by 8e7fbcbc22 ("sched: Remove stale
power aware scheduling remnants and dysfunctional knobs").

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Link: http://lkml.kernel.org/r/20140304210737.16893.54289.stgit@bhelgaas-glaptop.roam.corp.google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-03-11 12:05:45 +01:00
Ingo Molnar
a02ed5e3e0 Merge branch 'sched/urgent' into sched/core
Pick up fixes before queueing up new changes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-03-11 11:34:27 +01:00
Linus Torvalds
79e615420c ARM: SoC fixes for 3.14-rc
A collection of fixes for ARM platforms. A little large due to us missing to
 do one last week, but there's nothing in particular here that is in itself
 large and scary.
 
 Mostly a handful of smaller fixes all over the place. The majority is made
 up of fixes for OMAP, but there are a few for others as well. In particular,
 there was a decision to rename a binding for the Broadcom pinctrl block that
 we need to go in before the final release since we then treat it as ABI.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from from Olof Johansson:
 "A collection of fixes for ARM platforms.  A little large due to us
  missing to do one last week, but there's nothing in particular here
  that is in itself large and scary.

  Mostly a handful of smaller fixes all over the place.  The majority is
  made up of fixes for OMAP, but there are a few for others as well.  In
  particular, there was a decision to rename a binding for the Broadcom
  pinctrl block that we need to go in before the final release since we
  then treat it as ABI"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
  ARM: tegra: add LED options back into tegra_defconfig
  ARM: dts: omap3-igep: fix boot fail due wrong compatible match
  ARM: OMAP3: Fix pinctrl interrupts for core2
  pinctrl: Rename Broadcom Capri pinctrl binding
  pinctrl: refer to updated dt binding string.
  Update dtsi with new pinctrl compatible string
  ARM: OMAP: Kill warning in CPUIDLE code with !CONFIG_SMP
  ARM: OMAP2+: Add support for thumb mode on DT booted N900
  ARM: OMAP2+: clock: fix clkoutx2 with CLK_SET_RATE_PARENT
  ARM: OMAP4: hwmod: Fix SOFTRESET logic for OMAP4
  ARM: DRA7: hwmod data: correct the sysc data for spinlock
  ARM: OMAP5: PRM: Fix reboot handling
  ARM: sunxi: dt: Change the touchscreen compatibles
  ARM: sun7i: dt: Fix interrupt trigger types
2014-03-09 19:27:31 -07:00
Olof Johansson
10554647b4 Two omap3430 vs 3630 device tree regression fixes for
issues booting 3430 based boards.
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Merge tag 'omap-for-v3.14/fixes-dt-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren:

Two omap3430 vs 3630 device tree regression fixes for
issues booting 3430 based boards.

* tag 'omap-for-v3.14/fixes-dt-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
  ARM: dts: omap3-igep: fix boot fail due wrong compatible match

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 22:56:31 -08:00
Olof Johansson
4058f76247 Rename pinctrl dt binding to restore consistency with
other bcm mobile bindings.
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Merge tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351 into fixes

Merge 'bcm pinctrl rename' From Christin Daudt:

Rename pinctrl dt binding to restore consistency with other bcm mobile
bindings.

* tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351:
  pinctrl: Rename Broadcom Capri pinctrl binding
  pinctrl: refer to updated dt binding string.
  Update dtsi with new pinctrl compatible string
  + Linux 3.14-rc4

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 22:11:16 -08:00
Olof Johansson
614cd4a4ac Two fixes for device trees additions that got added in 3.14. One fixes the
interrupt types of some IPs, the other fixes up a compatible that got
 introduced during 3.14
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Merge tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux into fixes

Allwinner fixes from Maxime Ripard:

Two fixes for device trees additions that got added in 3.14. One fixes the
interrupt types of some IPs, the other fixes up a compatible that got
introduced during 3.14

* tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux:
  ARM: sunxi: dt: Change the touchscreen compatibles
  ARM: sun7i: dt: Fix interrupt trigger types

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 22:09:23 -08:00
Linus Torvalds
4d7eaa12f3 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "A number of ARM updates for -rc, covering mostly ARM specific code,
  but with one change to modpost.c to allow Thumb section mismatches to
  be detected.

  ARM changes include reporting when an attempt is made to boot a LPAE
  kernel on hardware which does not support LPAE, rather than just being
  silent about it.

  A number of other minor fixes are included too"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 7992/1: boot: compressed: ignore bswapsdi2.S
  ARM: 7991/1: sa1100: fix compile problem on Collie
  ARM: fix noMMU kallsyms symbol filtering
  ARM: 7980/1: kernel: improve error message when LPAE config doesn't match CPU
  ARM: 7964/1: Detect section mismatches in thumb relocations
  ARM: 7963/1: mm: report both sections from PMD
2014-03-07 17:39:32 -08:00
Mark Rutland
38e0b088d3 ARM: 7992/1: boot: compressed: ignore bswapsdi2.S
Commit 017f161a55 (ARM: 7877/1: use built-in byte swap function) added
bswapsdi2.{o,S} to arch/arm/boot/compressed/Makefile, but didn't update
the .gitignore. Thus after a a build git status shows bswapsdi2.S as a
new file, which is a little annoying.

This patch updates arch/arm/boot/compressed/.gitignore to ignore
bswapsdi2.S, as we already do for ashldi3.S and others.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-03-07 22:04:10 +00:00
Linus Walleij
052450fdc5 ARM: 7991/1: sa1100: fix compile problem on Collie
Due to a problem in the MFD Kconfig it was not possible to
compile the UCB battery driver for the Collie SA1100 system,
in turn making it impossible to compile in the battery driver.
(See patch "mfd: include all drivers in subsystem menu".)

After fixing the MFD Kconfig (separate patch) a compile error
appears in the Collie battery driver due to the <mach/collie.h>
implicitly requiring <mach/hardware.h> through <linux/gpio.h>
via <mach/gpio.h> prior to commit
40ca061b "ARM: 7841/1: sa1100: remove complex GPIO interface".

Fix this up by including the required header into
<mach/collie.h>.

Cc: stable@vger.kernel.org
Cc: Andrea Adami <andrea.adami@gmail.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-03-07 22:04:08 +00:00
Russell King
006fa2599b ARM: fix noMMU kallsyms symbol filtering
With noMMU, CONFIG_PAGE_OFFSET was not being set correctly.  As there's
no MMU, PAGE_OFFSET should be equal to PHYS_OFFSET in all cases.  This
commit makes that explicit.

Since we do this, we don't need to mess around in asm/memory.h with
ifdefs to sort this out, so let's get rid of that, and there's no point
offering the "Memory split" option for noMMU as that's meaningless
there.

Fixes: b9b32bf70f ("ARM: use linker magic for vectors and vector stubs")
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-03-07 22:04:06 +00:00
Linus Torvalds
ee69350759 Bug:
- Fix compile dependency on Xen ARM to have MMU.
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Merge tag 'stable/for-linus-3.14-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull Xen fix from Konrad Rzeszutek Wilk:
 "This has exactly one patch for Xen ARM.  It sets the dependency to
  compile the kernel with MMU enabled - otherwise - the guest won't work
  very well"

* tag 'stable/for-linus-3.14-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  ARM: XEN depends on having a MMU
2014-03-07 09:53:24 -08:00
Linus Torvalds
7abd42eab3 Clock framework and driver fixes, all of which fix user-visible
regressions. There is a single framework fix that prevents dereferencing
 a NULL pointer when calling clk_get. The range of fixes for clock driver
 regressions spans memory leak fixes, touching the wrong registers that
 cause things to explode, misconfigured clock rates that result in
 non-responsive devices and even some boot failures. The most benign fix
 is DT binding doc typo. It is a stable ABI exposed from the kernel that
 was introduced in -rc1, so best to fix it now.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux

Pull clk framework fixes from Mike Turquette:
 "Clock framework and driver fixes, all of which fix user-visible
  regressions.

  There is a single framework fix that prevents dereferencing a NULL
  pointer when calling clk_get.  The range of fixes for clock driver
  regressions spans memory leak fixes, touching the wrong registers that
  cause things to explode, misconfigured clock rates that result in
  non-responsive devices and even some boot failures.  The most benign
  fix is DT binding doc typo.  It is a stable ABI exposed from the
  kernel that was introduced in -rc1, so best to fix it now"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux: (25 commits)
  clk:at91: Fix memory leak in of_at91_clk_master_setup()
  clk: nomadik: fix multiplatform problem
  clk: Correct handling of NULL clk in __clk_{get, put}
  clk: shmobile: Fix typo in MSTP clock DT bindings
  clk: shmobile: rcar-gen2: Fix qspi divisor
  clk: shmobile: rcar-gen2: Fix clock parent for all non-PLL clocks
  clk: tegra124: remove gr2d and gr3d clocks
  clk: tegra: Fix vic03 mux index
  clk: shmobile: rcar-gen2: Fix qspi divisor
  clk: shmobile: rcar-gen2: Fix clock parent all non-PLL clocks
  clk: tegra: use max divider if divider overflows
  clk: tegra: cclk_lp has a pllx/2 divider
  clk: tegra: fix sdmmc clks on Tegra1x4
  clk: tegra: fix host1x clock on Tegra124
  clk: tegra: PLLD2 fixes for hdmi
  clk: tegra: Fix PLLD mnp table
  clk: tegra: Fix PLLP rate table
  clk: tegra: Correct clock number for UARTE
  clk: tegra: Add missing Tegra20 fuse clks
  ARM: keystone: dts: fix clkvcp3 control register address
  ...
2014-03-03 10:47:46 -08:00
Uwe Kleine-König
7693decce8 ARM: XEN depends on having a MMU
arch/arm/xen/enlighten.c (and maybe others) use MMU-specific functions
like pte_mkspecial which are only available on MMU builds. So let XEN
depend on MMU.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2014-03-03 09:26:55 -05:00
Marek Belisko
ae41a3030c ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
Without that change booting leads to crash with more warnings like below:
[    0.284454] omap_hwmod: uart4: cannot clk_get main_clk uart4_fck
[    0.284484] omap_hwmod: uart4: cannot _init_clocks
[    0.284484] ------------[ cut here ]------------
[    0.284545] WARNING: CPU: 0 PID: 1 at arch/arm/mach-omap2/omap_hwmod.c:2543 _init+0x300/0x3e4()
[    0.284545] omap_hwmod: uart4: couldn't init clocks
[    0.284576] Modules linked in:
[    0.284606] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.0-next-20140124-00020-gd2aefec-dirty #26
[    0.284637] [<c00151c0>] (unwind_backtrace) from [<c0011e20>] (show_stack+0x10/0x14)
[    0.284667] [<c0011e20>] (show_stack) from [<c0568544>] (dump_stack+0x7c/0x94)
[    0.284729] [<c0568544>] (dump_stack) from [<c003ff94>] (warn_slowpath_common+0x6c/0x90)
[    0.284729] [<c003ff94>] (warn_slowpath_common) from [<c003ffe8>] (warn_slowpath_fmt+0x30/0x40)
[    0.284759] [<c003ffe8>] (warn_slowpath_fmt) from [<c07d1be8>] (_init+0x300/0x3e4)
[    0.284790] [<c07d1be8>] (_init) from [<c07d217c>] (__omap_hwmod_setup_all+0x40/0x8c)
[    0.284820] [<c07d217c>] (__omap_hwmod_setup_all) from [<c0008918>] (do_one_initcall+0xe8/0x14c)
[    0.284851] [<c0008918>] (do_one_initcall) from [<c07c5c18>] (kernel_init_freeable+0x104/0x1c8)
[    0.284881] [<c07c5c18>] (kernel_init_freeable) from [<c0563524>] (kernel_init+0x8/0x118)
[    0.284912] [<c0563524>] (kernel_init) from [<c000e368>] (ret_from_fork+0x14/0x2c)
[    0.285064] ---[ end trace 63de210ad43b627d ]---

Reference:
https://lkml.org/lkml/2013/10/8/553

Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-03-02 09:44:45 -08:00
Stephen Warren
014325e933 ARM: tegra: add LED options back into tegra_defconfig
The last time tegra_defconfig was rebuilt, various LEDs options were
somehow selected by other options, and hence their entries in
tegra_defconfig were removed by "make savedefconfig". However, for some
reason this is no longer happening, so we need to add the entries back
into tegra_defconfig so the they are enabled in .config.

Fixes: db079b1811 ("ARM: tegra: rebuild tegra_defconfig to add DEBUG_FS)"
Reported-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-02-28 21:35:58 +01:00
Linus Torvalds
d8efcf38b1 Three x86 fixes and one for ARM/ARM64. In particular, nested
virtualization on Intel is broken in 3.13 and fixed by this
 pull request.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Three x86 fixes and one for ARM/ARM64.

  In particular, nested virtualization on Intel is broken in 3.13 and
  fixed by this pull request"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm, vmx: Really fix lazy FPU on nested guest
  kvm: x86: fix emulator buffer overflow (CVE-2014-0049)
  arm/arm64: KVM: detect CPU reset on CPU_PM_EXIT
  KVM: MMU: drop read-only large sptes when creating lower level sptes
2014-02-28 11:45:03 -08:00
Javier Martinez Canillas
fb0cfecf67 ARM: dts: omap3-igep: fix boot fail due wrong compatible match
This patch is based on commit:

016c12d2 ("ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree")

and fixes a boot hang due the IGEP board being wrongly initialized
as an OMAP3430 platform instead of an OMAP3630.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-02-28 11:29:18 -08:00
Arnd Bergmann
077bb25c98 Fixes for omaps mostly to fix the 3430 display regression,
and random crashes if booting n900 with device tree and
 thumb mode. Also few other regressions and fixes.
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Merge tag 'omap-for-v3.14/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Omap fixes from Tony Lindgren:

Fixes for omaps mostly to fix the 3430 display regression,
and random crashes if booting n900 with device tree and
thumb mode. Also few other regressions and fixes.

* tag 'omap-for-v3.14/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP3: Fix pinctrl interrupts for core2
  ARM: OMAP: Kill warning in CPUIDLE code with !CONFIG_SMP
  ARM: OMAP2+: Add support for thumb mode on DT booted N900
  ARM: OMAP2+: clock: fix clkoutx2 with CLK_SET_RATE_PARENT
  ARM: OMAP4: hwmod: Fix SOFTRESET logic for OMAP4
  ARM: DRA7: hwmod data: correct the sysc data for spinlock
  ARM: OMAP5: PRM: Fix reboot handling

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-02-28 16:01:28 +01:00
Tony Lindgren
4b41636878 ARM: OMAP3: Fix pinctrl interrupts for core2
After splitting padconf core into two parts to avoid exposing
unaccessable registers, the new padconf core2 domain was left
without a wake-up interrupt.

Fix the issue by passing the shared wake-up interrupt in
platform data like we do for padconf core and wkup domains
already.

Fixes: 3d49538364 (ARM: dts: Split omap3 pinmux core device)

Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-02-27 15:35:48 -08:00
Marc Zyngier
b20c9f29c5 arm/arm64: KVM: detect CPU reset on CPU_PM_EXIT
Commit 1fcf7ce0c6 (arm: kvm: implement CPU PM notifier) added
support for CPU power-management, using a cpu_notifier to re-init
KVM on a CPU that entered CPU idle.

The code assumed that a CPU entering idle would actually be powered
off, loosing its state entierely, and would then need to be
reinitialized. It turns out that this is not always the case, and
some HW performs CPU PM without actually killing the core. In this
case, we try to reinitialize KVM while it is still live. It ends up
badly, as reported by Andre Przywara (using a Calxeda Midway):

[    3.663897] Kernel panic - not syncing: unexpected prefetch abort in Hyp mode at: 0x685760
[    3.663897] unexpected data abort in Hyp mode at: 0xc067d150
[    3.663897] unexpected HVC/SVC trap in Hyp mode at: 0xc0901dd0

The trick here is to detect if we've been through a full re-init or
not by looking at HVBAR (VBAR_EL2 on arm64). This involves
implementing the backend for __hyp_get_vectors in the main KVM HYP
code (rather small), and checking the return value against the
default one when the CPU notifier is called on CPU_PM_EXIT.

Reported-by: Andre Przywara <osp@andrep.de>
Tested-by: Andre Przywara <osp@andrep.de>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Rob Herring <rob.herring@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-02-27 19:27:10 +01:00
Mike Turquette
10b7cdc008 Merge branch 'clocks/fixes/drivers' of git://linuxtv.org/pinchartl/fbdev into clk-fixes 2014-02-24 22:21:29 -08:00
Sherman Yin
a2530060c1 Update dtsi with new pinctrl compatible string
This commit updates bcm11351.dtsi with the new compatible string for
the same driver.

Signed-off-by: Sherman Yin <syin@broadcom.com>
Reviewed-by: Matt Porter <mporter@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Daudt <bcm@fixthebug.org>
2014-02-24 20:25:53 -08:00
Linus Torvalds
7267342995 ARM: SoC fixes for 3.14-rc
A collection of fixes for ARM platforms. Most are fixes for DTS files,
 mostly from DT conversion on OMAP which is still finding a few issues here
 and there.
 
 There's a couple of small stale code removal patches that we usually
 queue for the next release instead, but they seemed harmless enough to
 bring in now.
 
 Also, a fix for backlight on some PXA platforms, and a cache configuration
 fix for Tegra, etc.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A collection of fixes for ARM platforms.  Most are fixes for DTS
  files, mostly from DT conversion on OMAP which is still finding a few
  issues here and there.

  There's a couple of small stale code removal patches that we usually
  queue for the next release instead, but they seemed harmless enough to
  bring in now.

  Also, a fix for backlight on some PXA platforms, and a cache
  configuration fix for Tegra, etc"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (25 commits)
  MAINTAINERS: add additional ARM BCM281xx/BCM11xxx maintainer
  ARM: tegra: only run PL310 init on systems with one
  ARM: tegra: Add head numbers to display controllers
  ARM: imx6: build pm-imx6q.c independently of CONFIG_PM
  ARM: tegra: fix RTC0 alias for Cardhu
  ARM: dove: dt: revert PMU interrupt controller node
  Documentation: dt: OMAP: Update Overo/Tobi
  ARM: dts: Add support for both OMAP35xx and OMAP36xx Overo/Tobi
  ARM: dts: omap3-tobi: Use the correct vendor prefix
  ARM: dts: omap3-tobi: Fix boot with OMAP36xx-based Overo
  ARM: OMAP2+: Remove legacy macros for zoom platforms
  ARM: OMAP2+: Remove MACH_NOKIA_N800
  ARM: dts: N900: add missing compatible property
  ARM: dts: N9/N950: fix boot hang with 3.14-rc1
  ARM: OMAP1: nokia770: enable tahvo-usb
  ARM: OMAP2+: gpmc: fix: DT ONENAND child nodes not probed when MTD_ONENAND is built as module
  ARM: OMAP2+: gpmc: fix: DT NAND child nodes not probed when MTD_NAND is built as module
  ARM: dts: omap3-gta04: Fix mmc1 properties.
  ARM: dts: omap3-gta04: Fix 'aux' gpio key flags.
  ARM: OMAP2+: add missing ARCH_HAS_OPP
  ...
2014-02-23 17:38:04 -08:00
Santosh Shilimkar
865da01cd9 ARM: OMAP: Kill warning in CPUIDLE code with !CONFIG_SMP
for non SMP build, NR_CPUS is 1 and hence the code complains with below
warnings.

arch/arm/mach-omap2/cpuidle44xx.c:207:8: warning: array subscript is above array bounds [-Warray-bounds]
arch/arm/mach-omap2/cpuidle44xx.c:212:11: warning: array subscript is above array bounds [-Warray-bounds]

Kill it by making array size fixed.

Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-02-21 15:16:56 -08:00
Sebastian Reichel
deff82e688 ARM: OMAP2+: Add support for thumb mode on DT booted N900
Without enabling the workaround for ARM errata 430973 thumb
compiled userland crashes randomly on the Nokia N900.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-02-21 15:07:36 -08:00
Tony Lindgren
915a15593b Several OMAP clock/PM/device data fixes for v3.14-rc. There's an OMAP5
reboot fix in there, plus a clock fix for rate computations involving
 x2 multipliers.
 
 Basic build, boot, and PM test logs are available here:
 
 http://www.pwsan.com/omap/testlogs/prcm-fixes-a-v3.14-rc/20140219131753/
 
 Note that most full-chip PM is broken since the v3.14 merge; it's
 not caused by this series.
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Merge tag 'for-v3.14-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.14/fixes

Several OMAP clock/PM/device data fixes for v3.14-rc.  There's an OMAP5
reboot fix in there, plus a clock fix for rate computations involving
x2 multipliers.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/prcm-fixes-a-v3.14-rc/20140219131753/

Note that most full-chip PM is broken since the v3.14 merge; it's
not caused by this series.
2014-02-21 15:02:25 -08:00
Linus Torvalds
10527106ab Device tree compatible match order bug fix
This branch contains a bug fix for the way devicetree code identifies
 the type of device. Device drivers can contain a list of of_device_ids,
 but it more than one entry will match, then the device driver may choose
 the wrong one. Commit 105353145e, "match each node compatible against
 all given matches first", was queued for v3.14 but ended up causing
 other bugs. Commit 06b29e76a7 attempted to fix it but it had other bugs.
 Merely reverting the fix and waiting until v3.15 isn't a good option
 because there is code in v3.14 that depends on the revised behaviour to
 boot.
 
 This branch should finally fixes the problem correctly. This time
 instead of just hoping that the patch is correct, this branch also adds
 new testcases that validate the behaviour.
 
 The changes in this branch are larger than I would like for a -rc pull,
 but moving the test case data out of out of arch/arm so that it could be
 validated on other architectures was important.
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Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux

Pull devicetree fixes from Grant Likely:
 "Device tree compatible match order bug fix

  This branch contains a bug fix for the way devicetree code identifies
  the type of device.  Device drivers can contain a list of
  of_device_ids, but it more than one entry will match, then the device
  driver may choose the wrong one.  Commit 105353145e, "match each node
  compatible against all given matches first", was queued for v3.14 but
  ended up causing other bugs.  Commit 06b29e76a7 attempted to fix it
  but it had other bugs.  Merely reverting the fix and waiting until
  v3.15 isn't a good option because there is code in v3.14 that depends
  on the revised behaviour to boot.

  This branch should finally fixes the problem correctly.  This time
  instead of just hoping that the patch is correct, this branch also
  adds new testcases that validate the behaviour.

  The changes in this branch are larger than I would like for a -rc
  pull, but moving the test case data out of out of arch/arm so that it
  could be validated on other architectures was important"

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux:
  of: Add self test for of_match_node()
  of: Move testcase FDT data into drivers/of
  of: reimplement the matching method for __of_match_node()
  Revert "of: search the best compatible match first in __of_match_node()"
2014-02-21 14:35:05 -08:00
Thomas Gleixner
d97a860c4f Merge branch 'linus' into sched/core
Reason: Bring bakc upstream modification to resolve conflicts

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-02-21 21:37:09 +01:00
Thomas Petazzoni
b363457593 ARM: 7980/1: kernel: improve error message when LPAE config doesn't match CPU
Currently, when the kernel is configured with LPAE support, but the
CPU doesn't support it, the error message is fairly cryptic:

  Error: unrecognized/unsupported processor variant (0x561f5811).

This messages is normally shown when there is an issue when comparing
the processor ID (CP15 0, c0, c0) with the values/masks described in
proc-v7.S. However, the same message is displayed when LPAE support is
enabled in the kernel configuration, but not available in the CPU,
after looking at ID_MMFR0 (CP15 0, c0, c1, 4). Having the same error
message is highly misleading.

This commit improves this by showing a different error message when
this situation occurs:

  Error: Kernel with LPAE support, but CPU does not support LPAE.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-21 11:56:32 +00:00
Linus Torvalds
6a4d07f85b Merge branch 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
 "Quite a few fixes this time.

  Three locking fixes, all marked for -stable.  A couple error path
  fixes and some misc fixes.  Hugh found a bug in memcg offlining
  sequence and we thought we could fix that from cgroup core side but
  that turned out to be insufficient and got reverted.  A different fix
  has been applied to -mm"

* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: update cgroup_enable_task_cg_lists() to grab siglock
  Revert "cgroup: use an ordered workqueue for cgroup destruction"
  cgroup: protect modifications to cgroup_idr with cgroup_mutex
  cgroup: fix locking in cgroup_cfts_commit()
  cgroup: fix error return from cgroup_create()
  cgroup: fix error return value in cgroup_mount()
  cgroup: use an ordered workqueue for cgroup destruction
  nfs: include xattr.h from fs/nfs/nfs3proc.c
  cpuset: update MAINTAINERS entry
  arm, pm, vmpressure: add missing slab.h includes
2014-02-20 12:01:09 -08:00
Linus Torvalds
d49649615d Merge branch 'fixes-for-v3.14' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull DMA-mapping fixes from Marek Szyprowski:
 "This contains fixes for incorrect atomic test in dma-mapping subsystem
  for ARM and x86 architecture"

* 'fixes-for-v3.14' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  x86: dma-mapping: fix GFP_ATOMIC macro usage
  ARM: dma-mapping: fix GFP_ATOMIC macro usage
2014-02-20 11:58:56 -08:00
Grant Likely
b5190516b2 of: Move testcase FDT data into drivers/of
The testcase data is usable by any platform. This patch moves it into
the drivers/of directory so it can be included by any architecture.

Using the test cases requires manually adding #include <testcases.dtsi>
to the end of the boards .dtsi file and enabling CONFIG_OF_SELFTEST. Not
pretty though. A useful project would be to make the testcase code
easier to execute.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-02-20 11:52:08 +00:00
Tomi Valkeinen
994c41ee0a ARM: OMAP2+: clock: fix clkoutx2 with CLK_SET_RATE_PARENT
If CLK_SET_RATE_PARENT is set for a clkoutx2 clock, calling
clk_set_rate() on the clock "skips" the x2 multiplier as there are no
set_rate and round_rate functions defined for the clkoutx2.

This results in getting double the requested clock rates, breaking the
display on omap3430 based devices. This got broken when
d0f58bd3bb and related patches were merged
for v3.14, as omapdss driver now relies more on the clk-framework and
CLK_SET_RATE_PARENT.

This patch implements set_rate and round_rate for clkoutx2.

Tested on OMAP3430, OMAP3630, OMAP4460.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-02-19 12:07:55 -07:00
Illia Smyrnov
01142519ff ARM: OMAP4: hwmod: Fix SOFTRESET logic for OMAP4
Commit 313a76e (ARM: OMAP2+: hwmod: Fix SOFTRESET logic) introduced
softreset bit cleaning right after set one. It is caused L3 error for
OMAP4 ISS because ISS register write occurs when ISS reset process is in
progress. Avoid this situation by cleaning softreset bit later, when reset
process is successfully finished.

Signed-off-by: Illia Smyrnov <illia.smyrnov@globallogic.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-02-19 12:07:00 -07:00
Suman Anna
c317d0f241 ARM: DRA7: hwmod data: correct the sysc data for spinlock
The spinlock module's SYSCONFIG register on DRA7xx does not
support smart wakeup, and also does not have the CLKACTIVITY
field. The sysc data for spinlock module has been appropriately
fixed up to reflect the same.

Cc: Ambresh K <ambresh@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-02-19 11:34:47 -07:00
Vaibhav Bedia
18ba7b9d5f ARM: OMAP5: PRM: Fix reboot handling
Use the correct register offset for issuing the
reset command in OMAP5. Since dev_inst is set dynamically
OMAP4 should not be affected by this change.

Signed-off-by: Vaibhav Bedia <vaibhav.bedia@gmail.com>
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-02-19 10:38:26 -07:00
Mike Turquette
7364001478 Merge branch 'for_3.14-rcx/clk-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into clk-fixes 2014-02-18 22:18:52 -08:00
Stephen Warren
8859685785 ARM: tegra: only run PL310 init on systems with one
Fix tegra_init_cache() to check whether the system has a PL310 cache
before touching the PL310 registers. This prevents access to non-existent
registers on Tegra114 and later.

Note for stable kernels:
In <= v3.12, the file to patch is arch/arm/mach-tegra/common.c.

Cc: <stable@vger.kernel.org> # v3.9+
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-02-18 20:30:59 -08:00