Commit Graph

874 Commits

Author SHA1 Message Date
Krzysztof Kozlowski c1f0ecff49 ARM: EXYNOS: Use of_machine_is_compatible instead of soc_is_exynos4
of_machine_is_compatible() seems to be preferred over soc_is_exynos4().

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-14 11:43:59 +09:00
Krzysztof Kozlowski 6f024978e7 ARM: EXYNOS: Fix failed second suspend on Exynos4
On Exynos4412 boards (Trats2, Odroid U3) after enabling L2 cache in
56b60b8bce ("ARM: 8265/1: dts: exynos4: Add nodes for L2 cache
controller") the second suspend to RAM failed. First suspend worked fine
but the next one hang just after powering down of secondary CPUs (system
consumed energy as it would be running but was not responsive).

The issue was caused by enabling delayed reset assertion for CPU0 just
after issuing power down of cores. This was introduced for Exynos4 in
13cfa6c4f7 ("ARM: EXYNOS: Fix CPU idle clock down after CPU off").

The whole behavior is not well documented but after checking with vendor
code this should be done like this (on Exynos4):
1. Enable delayed reset assertion when system is running (for all CPUs).
2. Disable delayed reset assertion before suspending the system.
   This can be done after powering off secondary CPUs.
3. Re-enable the delayed reset assertion when system is resumed.

Fixes: 13cfa6c4f7 ("ARM: EXYNOS: Fix CPU idle clock down after CPU off")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-14 11:32:18 +09:00
Krzysztof Kozlowski 0b7dc0ff95 ARM: EXYNOS: Fix dereference of ERR_PTR returned by of_genpd_get_from_provider
ERR_PTR was dereferenced during sub domain parsing, if parent domain
could not be obtained (because of invalid phandle or deferred
registration of parent domain).

The Exynos power domain code checked whether
of_genpd_get_from_provider() returned NULL and in that case it skipped
that power domain node. However this function returns ERR_PTR or valid
pointer, not NULL.

Fixes: 0f7807518f ("ARM: EXYNOS: add support for sub-power domains")
Cc: <stable@vger.kernel.org>	[4.0+]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-13 17:45:52 +09:00
Julien Grall e5cbec617f ARM: EXYNOS: Don't try to initialize suspend on old DT
Since commit 8b283c0254 ("ARM: exynos4/5: convert pmu wakeup to
stacked domains"), a suspend/resume is not supported on old DT.

Although, rather than printing a warning and continue to boot, the
kernel will segfault just after:

------------[ cut here ]------------

WARNING: CPU: 1 PID: 1 at arch/arm/mach-exynos/suspend.c:726 exynos_pm_init+0x4c/0xc8()
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.1.0-rc3 #1
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[<c02181c4>] (unwind_backtrace) from [<c0213b2c>] (show_stack+0x10/0x14)
[<c0213b2c>] (show_stack) from [<c0949890>] (dump_stack+0x70/0x8c)
[<c0949890>] (dump_stack) from [<c024f0b0>] (warn_slowpath_common+0x74/0xac)
[<c024f0b0>] (warn_slowpath_common) from [<c024f104>] (warn_slowpath_null+0x1c/0x24)
[<c024f104>] (warn_slowpath_null) from [<c0cf1d28>] (exynos_pm_init+0x4c/0xc8)
[<c0cf1d28>] (exynos_pm_init) from [<c0ceaae8>] (init_machine_late+0x1c/0x28)
[<c0ceaae8>] (init_machine_late) from [<c020aa64>] (do_one_initcall+0x80/0x1d0)
[<c020aa64>] (do_one_initcall) from [<c0ce8d4c>] (kernel_init_freeable+0x10c/0x1d8)
[<c0ce8d4c>] (kernel_init_freeable) from [<c0944a2c>] (kernel_init+0x8/0xe4)
[<c0944a2c>] (kernel_init) from [<c0210e60>] (ret_from_fork+0x14/0x34)
---[ end trace 335bd937d409f3c7 ]---
Outdated DT detected, suspend/resume will NOT work
Unable to handle kernel NULL pointer dereference at virtual address 00000608
pgd = c0204000
[00000608] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Tainted: G        W       4.1.0-rc3 #1
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
task: db06c000 ti: db05a000 task.ti: db05a000
PC is at exynos_pm_init+0x6c/0xc8
LR is at exynos_pm_init+0x54/0xc8
pc : [<c0cf1d48>]    lr : [<c0cf1d30>]    psr: 60000113
sp : db05bee8  ip : 00000000  fp : 00000000
r10: 00000116  r9 : c0dab2d4  r8 : d8d5f440
r7 : c0db7ad8  r6 : c0db7ad8  r5 : 00000000  r4 : c0ceaacc
r3 : c0eb2aec  r2 : c0951e40  r1 : 00000000  r0 : c0eb2acc
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 6020406a  DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0xdb05a220)
Stack: (0xdb05bee8 to 0xdb05c000)
bee0:                   c0db7ad8 c0d8fe34 c0cf17c8 c0ceaae8 00000000 c020aa64
bf00: 00000033 c09580b8 db04fd00 c0ed79a4 c0eb1000 c0ce8588 c0ca2bc4 c0353fcc
bf20: 00000000 c0df358c 60000113 00000000 dbfffba4 00000000 c0ca2bc4 c026654c
bf40: c0b80134 c0ca1a64 00000007 00000007 c0df3554 c0d6c2f4 00000007 c0d6c2d4
bf60: c0eb1000 c0ce8588 c0dab2d4 00000116 00000000 c0ce8d4c 00000007 00000007
bf80: c0ce8588 c0944a24 00000000 c0944a24 00000000 00000000 00000000 00000000
bfa0: 00000000 c0944a2c 00000000 c0210e60 00000000 00000000 00000000 00000000
bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[<c0cf1d48>] (exynos_pm_init) from [<c0ceaae8>] (init_machine_late+0x1c/0x28)
[<c0ceaae8>] (init_machine_late) from [<c020aa64>] (do_one_initcall+0x80/0x1d0)
[<c020aa64>] (do_one_initcall) from [<c0ce8d4c>] (kernel_init_freeable+0x10c/0x1d8)
[<c0ce8d4c>] (kernel_init_freeable) from [<c0944a2c>] (kernel_init+0x8/0xe4)
[<c0944a2c>] (kernel_init) from [<c0210e60>] (ret_from_fork+0x14/0x34)
Code: e59f005c e59220c0 e5901000 e5832000 (e591e608)
---[ end trace 335bd937d409f3c8 ]---

This is happening because pmu_base_addr is only initialized when the
PMU is an interrupt controller. It's not the case on old DT.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-13 03:49:04 +09:00
Linus Torvalds 7d2b6ef19c ARM: SoC driver updates for v4.1
Driver updates for v4.1. Some of these are for drivers/soc, where we find more
 and more SoC-specific drivers these days. Some are for other driver subsystems
 where we have received acks from the appropriate maintainers.
 
 The larger parts of this branch are:
 
 - MediaTek support for their PMIC wrapper interface, a high-level interface
   for talking to the system PMIC over a dedicated I2C interface.
 - Qualcomm SCM driver has been moved to drivers/firmware. It's used for CPU
   up/down and needs to be in a shared location for arm/arm64 common code.
 - Cleanup of ARM-CCI PMU code.
 - Anoter set of cleanusp to the OMAP GPMC code.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for v4.1.  Some of these are for drivers/soc, where we
  find more and more SoC-specific drivers these days.  Some are for
  other driver subsystems where we have received acks from the
  appropriate maintainers.

  The larger parts of this branch are:

   - MediaTek support for their PMIC wrapper interface, a high-level
     interface for talking to the system PMIC over a dedicated I2C
     interface.

   - Qualcomm SCM driver has been moved to drivers/firmware.  It's used
     for CPU up/down and needs to be in a shared location for arm/arm64
     common code.

   - cleanup of ARM-CCI PMU code.

   - another set of cleanusp to the OMAP GPMC code"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
  soc/mediatek: Remove unused variables
  clocksource: atmel-st: select MFD_SYSCON
  soc: mediatek: Add PMIC wrapper for MT8135 and MT8173 SoCs
  arm-cci: Fix CCI PMU event validation
  arm-cci: Split the code for PMU vs driver support
  arm-cci: Get rid of secure transactions for PMU driver
  arm-cci: Abstract the CCI400 PMU specific definitions
  arm-cci: Rearrange code for splitting PMU vs driver code
  drivers: cci: reject groups spanning multiple HW PMUs
  ARM: at91: remove useless include
  clocksource: atmel-st: remove mach/hardware dependency
  clocksource: atmel-st: use syscon/regmap
  ARM: at91: time: move the system timer driver to drivers/clocksource
  ARM: at91: properly initialize timer
  ARM: at91: at91rm9200: remove deprecated arm_pm_restart
  watchdog: at91rm9200: implement restart handler
  watchdog: at91rm9200: use the system timer syscon
  mfd: syscon: Add atmel system timer registers definition
  ARM: at91/dt: declare atmel,at91rm9200-st as a syscon
  soc: qcom: gsbi: Add support for ADM CRCI muxing
  ...
2015-04-22 09:18:17 -07:00
Linus Torvalds e6c81cce56 ARM: SoC platform updates for v4.1
Our SoC branch usually contains expanded support for new SoCs and other core
 platform code. In this case, that includes:
 
 - Support for the new Annapurna Labs "Alpine" platform
 - A rework greatly simplifying adding new platform support to the MCPM
   subsystem (Multi-cluster power management)
 - Cpuidle and PM improvements for Exynos3250
 - Misc updates for Renesas, OMAP, Meson, i.MX. Some of these could have
   gone in other branches but ended up here for various reasons.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "Our SoC branch usually contains expanded support for new SoCs and
  other core platform code.  In this case, that includes:

   - support for the new Annapurna Labs "Alpine" platform

   - a rework greatly simplifying adding new platform support to the
     MCPM subsystem (Multi-cluster power management)

   - cpuidle and PM improvements for Exynos3250

   - misc updates for Renesas, OMAP, Meson, i.MX.  Some of these could
     have gone in other branches but ended up here for various reasons"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits)
  ARM: alpine: add support for generic pci
  ARM: Exynos: migrate DCSCB to the new MCPM backend abstraction
  ARM: vexpress: migrate DCSCB to the new MCPM backend abstraction
  ARM: vexpress: DCSCB: tighten CPU validity assertion
  ARM: vexpress: migrate TC2 to the new MCPM backend abstraction
  ARM: MCPM: move the algorithmic complexity to the core code
  ARM: EXYNOS: allow cpuidle driver usage on Exynos3250 SoC
  ARM: EXYNOS: add AFTR mode support for Exynos3250
  ARM: EXYNOS: add code for setting/clearing boot flag
  ARM: EXYNOS: fix CPU1 hotplug on Exynos3250
  ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
  ARM: cygnus: fix const declaration bcm_cygnus_dt_compat
  ARM: DRA7: hwmod: Fix the hwmod class for GPTimer4
  ARM: DRA7: hwmod: Add data for GPTimers 13 through 16
  ARM: EXYNOS: Remove left over 'extra_save'
  ARM: EXYNOS: Constify exynos_pm_data array
  ARM: EXYNOS: use static in suspend.c
  ARM: EXYNOS: Use platform device name as power domain name
  ARM: EXYNOS: add support for async-bridge clocks for pm_domains
  ARM: omap-device: add missed callback for suspend-to-disk
  ...
2015-04-22 09:08:39 -07:00
Linus Torvalds 38eb1dbb0d ARM: SoC fixes for v4.1
Here's the usual "low-priority fixes that didn't make it into the last
 few -rcs, with a twist: We had a fixes pull request that I didn't send
 in time to get into 4.0, so we'll send some of them to Greg for -stable as
 well.
 
 Contents here is as usual not all that controversial:
 
 - A handful of randconfig fixes from Arnd, in particular for older Samsung
   platforms
 - Exynos fixes, !SMP building, DTS updates for MMC and lid switch
 - Kbuild fix to create output subdirectory for DTB files
 - Misc minor fixes for OMAP
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Here's the usual "low-priority fixes that didn't make it into the last
  few -rcs, with a twist: We had a fixes pull request that I didn't send
  in time to get into 4.0, so we'll send some of them to Greg for
  -stable as well.

  Contents here is as usual not all that controversial:

   - a handful of randconfig fixes from Arnd, in particular for older
     Samsung platforms

   - Exynos fixes, !SMP building, DTS updates for MMC and lid switch

   - Kbuild fix to create output subdirectory for DTB files

   - misc minor fixes for OMAP"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
  ARM: at91/dt: sama5d3 xplained: add phy address for macb1
  kbuild: Create directory for target DTB
  ARM: mvebu: Disable CPU Idle on Armada 38x
  ARM: DRA7: Enable Cortex A15 errata 798181
  ARM: dts: am57xx-beagle-x15: Add thermal map to include fan and tmp102
  ARM: dts: DRA7: Add bandgap and related thermal nodes
  bus: ocp2scp: SYNC2 value should be changed to 0x6
  ARM: dts: am4372: Add "ti,am437x-ocp2scp" as compatible string for OCP2SCP
  ARM: OMAP2+: remove superfluous NULL pointer check
  ARM: EXYNOS: Fix build breakage cpuidle on !SMP
  ARM: dts: fix lid and power pin-functions for exynos5250-spring
  ARM: dts: fix mmc node updates for exynos5250-spring
  ARM: OMAP4: remove dead kconfig option OMAP4_ERRATA_I688
  MAINTAINERS: add OMAP defconfigs under OMAP SUPPORT
  ARM: OMAP1: PM: fix some build warnings on 1510-only Kconfigs
  ARM: cns3xxx: don't export static symbol
  ARM: S3C24XX: avoid a Kconfig warning
  ARM: S3C24XX: fix header file inclusions
  ARM: S3C24XX: fix building without PM_SLEEP
  ARM: S3C24XX: use SAMSUNG_WAKEMASK for s3c2416
  ...
2015-04-22 09:03:30 -07:00
Linus Torvalds bb0fd7ab09 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
 "Included in this update are both some long term fixes and some new
  features.

  Fixes:

   - An integer overflow in the calculation of ELF_ET_DYN_BASE.

   - Avoiding OOMs for high-order IOMMU allocations

   - SMP requires the data cache to be enabled for synchronisation
     primitives to work, so prevent the CPU_DCACHE_DISABLE option being
     visible on SMP builds.

   - A bug going back 10+ years in the noMMU ARM94* CPU support code,
     where it corrupts registers.  Found by folk getting Linux running
     on their cameras.

   - Versatile Express needs an errata workaround enabled for CPU
     hot-unplug to work.

  Features:

   - Clean up module linker by handling out of range relocations
     separately from relocation cases we don't handle.

   - Fix a long term bug in the pci_mmap_page_range() code, which we
     hope won't impact userspace (we hope there's no users of the
     existing broken interface.)

   - Don't map DMA coherent allocations when we don't have a MMU.

   - Drop experimental status for SMP_ON_UP.

   - Warn when DT doesn't specify ePAPR mandatory cache properties.

   - Add documentation concerning how we find the start of physical
     memory for AUTO_ZRELADDR kernels, detailing why we have chosen the
     mask and the implications of changing it.

   - Updates from Ard Biesheuvel to address some issues with large
     kernels (such as allyesconfig) failing to link.

   - Allow hibernation to work on modern (ARMv7) CPUs - this appears to
     have never worked in the past on these CPUs.

   - Enable IRQ_SHOW_LEVEL, which changes the /proc/interrupts output
     format (hopefully without userspace breaking...  let's hope that if
     it causes someone a problem, they tell us.)

   - Fix tegra-ahb DT offsets.

   - Rework ARM errata 643719 code (and ARMv7 flush_cache_louis()/
     flush_dcache_all()) code to be more efficient, and enable this
     errata workaround by default for ARMv7+SMP CPUs.  This complements
     the Versatile Express fix above.

   - Rework ARMv7 context code for errata 430973, so that only Cortex A8
     CPUs are impacted by the branch target buffer flush when this
     errata is enabled.  Also update the help text to indicate that all
     r1p* A8 CPUs are impacted.

   - Switch ARM to the generic show_mem() implementation, it conveys all
     the information which we were already reporting.

   - Prevent slow timer sources being used for udelay() - timers running
     at less than 1MHz are not useful for this, and can cause udelay()
     to return immediately, without any wait.  Using such a slow timer
     is silly.

   - VDSO support for 32-bit ARM, mainly for gettimeofday() using the
     ARM architected timer.

   - Perf support for Scorpion performance monitoring units"

vdso semantic conflict fixed up as per linux-next.

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (52 commits)
  ARM: update errata 430973 documentation to cover Cortex A8 r1p*
  ARM: ensure delay timer has sufficient accuracy for delays
  ARM: switch to use the generic show_mem() implementation
  ARM: proc-v7: avoid errata 430973 workaround for non-Cortex A8 CPUs
  ARM: enable ARM errata 643719 workaround by default
  ARM: cache-v7: optimise test for Cortex A9 r0pX devices
  ARM: cache-v7: optimise branches in v7_flush_cache_louis
  ARM: cache-v7: consolidate initialisation of cache level index
  ARM: cache-v7: shift CLIDR to extract appropriate field before masking
  ARM: cache-v7: use movw/movt instructions
  ARM: allow 16-bit instructions in ALT_UP()
  ARM: proc-arm94*.S: fix setup function
  ARM: vexpress: fix CPU hotplug with CT9x4 tile.
  ARM: 8276/1: Make CPU_DCACHE_DISABLE depend on !SMP
  ARM: 8335/1: Documentation: DT bindings: Tegra AHB: document the legacy base address
  ARM: 8334/1: amba: tegra-ahb: detect and correct bogus base address
  ARM: 8333/1: amba: tegra-ahb: fix register offsets in the macros
  ARM: 8339/1: Enable CONFIG_GENERIC_IRQ_SHOW_LEVEL
  ARM: 8338/1: kexec: Relax SMP validation to improve DT compatibility
  ARM: 8337/1: mm: Do not invoke OOM for higher order IOMMU DMA allocations
  ...
2015-04-14 21:03:26 -07:00
Russell King 4b2f883847 Merge branch 'devel-stable' into for-next 2015-04-14 22:28:32 +01:00
Thomas Gleixner b7dccbea6b irqchip core change for v4.1 (round 3)
- Purge the gic_arch_extn hacks and abuse by using the new stacked domains
 
    NOTE: Due to the nature of these changes, patches crossing subsystems have
          been kept together in their own branches.
 
     - tegra
 
        - Handle the LIC properly
 
     - omap
 
        - Convert crossbar to stacked domains
        - kill arm,routable-irqs in GIC binding
 
     - exynos
 
        - Convert PMU wakeup to stacked domains
 
     - shmobile, ux500, zynq (irq_set_wake branch)
 
        - Switch from abusing gic_arch_extn to using gic_set_irqchip_flags
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Merge tag 'irqchip-core-4.1-3' of git://git.infradead.org/users/jcooper/linux into irq/core

irqchip core change for v4.1 (round 3) from Jason Cooper

 Purge the gic_arch_extn hacks and abuse by using the new stacked domains

   NOTE: Due to the nature of these changes, patches crossing subsystems have
         been kept together in their own branches.

    - tegra
       - Handle the LIC properly

    - omap
       - Convert crossbar to stacked domains
       - kill arm,routable-irqs in GIC binding

    - exynos
       - Convert PMU wakeup to stacked domains

    - shmobile, ux500, zynq (irq_set_wake branch)
       - Switch from abusing gic_arch_extn to using gic_set_irqchip_flags
2015-04-11 11:17:28 +02:00
Olof Johansson 7cef9875f3 Samsung mach updates for v4.1
- for s3c64xx
   : use fixed IRQ bases to avoid conflicts on Cragganmore
 
 - for exynos3250
   : add cpuidle and AFTR mode support
   : fix CPU1 hotplug
 
 - for exynos SoCs
   : add code for setting/clearing boot flag for cpuidle AFTR
   : remove left over 'extra_save' and constify 'exynos_pm_data' array
   : use static in suspend.c as per compiler suggestions
   : use platform device name as power domain name
   : add support for async-bridge clocks for pm_domains (exynos5420)
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Merge tag 'samsung-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

Merge "Samsung mach updates for v4.1" from Kukjin Kim:

- for s3c64xx
  : use fixed IRQ bases to avoid conflicts on Cragganmore

- for exynos3250
  : add cpuidle and AFTR mode support
  : fix CPU1 hotplug

- for exynos SoCs
  : add code for setting/clearing boot flag for cpuidle AFTR
  : remove left over 'extra_save' and constify 'exynos_pm_data' array
  : use static in suspend.c as per compiler suggestions
  : use platform device name as power domain name
  : add support for async-bridge clocks for pm_domains (exynos5420)

* tag 'samsung-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: allow cpuidle driver usage on Exynos3250 SoC
  ARM: EXYNOS: add AFTR mode support for Exynos3250
  ARM: EXYNOS: add code for setting/clearing boot flag
  ARM: EXYNOS: fix CPU1 hotplug on Exynos3250
  ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
  ARM: EXYNOS: Remove left over 'extra_save'
  ARM: EXYNOS: Constify exynos_pm_data array
  ARM: EXYNOS: use static in suspend.c
  ARM: EXYNOS: Use platform device name as power domain name
  ARM: EXYNOS: add support for async-bridge clocks for pm_domains

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 15:05:41 -07:00
Olof Johansson 03a1e74cad Samsung 2nd fixes for v4.0
- Fix build breakage exynos cpuidle driver on !SMP
   because it is coupled built-in so added check for SMP.
 
 - Fix lid, power pin-functions and mmc node updates
   for exynos5250-spring: Fixes commit ID 53dd4138bb
   ("ARM: dts: Add exynos5250-spring device tree")
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Merge tag 'samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes

Merge "Samsung 2nd fixes for v4.0" from Kukjin Kim:

- Fix build breakage exynos cpuidle driver on !SMP
  because it is coupled built-in so added check for SMP.

- Fix lid, power pin-functions and mmc node updates
  for exynos5250-spring: Fixes commit ID 53dd4138bb
  ("ARM: dts: Add exynos5250-spring device tree")

* tag 'samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Fix build breakage cpuidle on !SMP
  ARM: dts: fix lid and power pin-functions for exynos5250-spring
  ARM: dts: fix mmc node updates for exynos5250-spring

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 14:51:10 -07:00
Nicolas Pitre 5f493ace72 ARM: Exynos: migrate DCSCB to the new MCPM backend abstraction
The custom suspend callback is removed for this change. The extra call
to exynos_cpu_power_up(() that was present at the end of exynos_suspend()
is now relocated to the cpu_is_up callback.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 12:52:49 -07:00
Ard Biesheuvel 12833bacf5 ARM: 8325/1: exynos: move resume code to .text section
This code calls cpu_resume() using a straight branch (b), so
now that we have moved cpu_resume() back to .text, this should
be moved there as well. Any direct references to symbols that will
remain in the .data section are replaced with explicit PC-relative
references.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-03-29 23:11:57 +01:00
Suzuki K. Poulose ee8e5d5fbe arm-cci: Split the code for PMU vs driver support
This patch separates the PMU driver code from the low level
CCI driver code and enables the PMU driver for ARM64.

Introduces config options for both.

 ARM_CCI400_PORT_CTRL	- controls the low level driver code for
			  CCI400 ports.
 ARM_CCI400_PMU		- controls the PMU driver code
 ARM_CCI400_COMMON	- Common defintions for CCI400

This patch also changes:
 ARM_CCI - common code for probing the CCI devices. This can be
   used for adding support for newer CCI versions(e.g, CCI-500).

Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Abhilash Kesavan <a.kesavan@samsung.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Punit Agrawal <punit.agrawal@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-03-27 13:44:43 +00:00
Bartlomiej Zolnierkiewicz bd0d888c4f ARM: EXYNOS: allow cpuidle driver usage on Exynos3250 SoC
Register cpuidle platform device on Exynos3250 SoC allowing EXYNOS
cpuidle driver usage on this SoC.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-27 02:35:52 +09:00
Bartlomiej Zolnierkiewicz 8936640974 ARM: EXYNOS: add AFTR mode support for Exynos3250
AFTR mode support brings reduced energy consumption and is
a prerequisite for more advanced W-AFTR/LPA power saving modes.

AFTR mode has been already supported on other Exynos SoCs for
few years and this patch adds its support for Exynos3250 SoC.

The differences in Exynos3250 SoC AFTR mode support when compared
to Exynos4x12 SoCs are:
- different secure firmware calls are used
- different S5P_WAKEUP_MASK wakeup mask is used
- S5P_WAKEUP_MASK2 wakeup mask needs to be set in addition to
  the standard S5P_WAKEUP_MASK one
- C2_STATE BOOT mode flag needs to be set/cleared pre/post AFTR

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-27 02:35:48 +09:00
Bartlomiej Zolnierkiewicz dc1b9448d2 ARM: EXYNOS: add code for setting/clearing boot flag
This code is needed for cpuidle (W-)AFTR mode support on Exynos3250.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-27 02:32:56 +09:00
Bartlomiej Zolnierkiewicz 497ab3b30c ARM: EXYNOS: fix CPU1 hotplug on Exynos3250
CPU1 hotplug may hang when AFTR is used.  Fix it by:
- setting AUTOWAKEUP_EN bit in ARM_COREx_CONFIGURATION register in
  exynos_cpu_power_up()
- not clearing reserved bits of ARM_COREx_CONFIGURATION register in
  exynos_cpu_power_down()
- waiting while an undocumented register 0x0908 becomes non-zero in
  exynos_core_restart()
- using dsb_sev() instead of IPI in exynos_boot_secondary() on
  Exynos3250

This patch also fixes hotplug issues during resume from S2R:
$ echo mem > /sys/power/state
[  156.517266] Disabling non-boot CPUs ...
[  156.517781] IRQ18 no longer affine to CPU1
[  156.518043] CPU1: shutdown
[  156.544718] Enabling non-boot CPUs ...
[  156.554925] CPU1: Software reset
[  158.552631] CPU1: failed to come online
[  158.552753] Error taking CPU1 up: -5

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-27 02:32:56 +09:00
Marc Zyngier 8b283c0254 ARM: exynos4/5: convert pmu wakeup to stacked domains
Exynos has been (ab)using the gic_arch_extn to provide
wakeup from suspend, and it makes a lot of sense to convert
this code to use stacked domains instead.

This patch does just this, updating the DT files to actually
reflect what the HW provides.

BIG FAT WARNING: because the DTs were so far lying by not
exposing the fact that the PMU block is actually the first
interrupt controller in the chain for RTC, kernels with this patch
applied wont have any suspend-resume facility when booted
with old DTs, and old kernels with updated DTs may not even boot.

Also, I strongly suspect that there is more than two wake-up
interrupts on these platforms, but I leave it to the maintainers
to fix their mess.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1426088693-15724-2-git-send-email-marc.zyngier@arm.com
[ jac: squash in maz's fixup from
  https://lkml.kernel.org/r/5506989D.9050703@arm.com ]
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2015-03-18 17:36:32 +00:00
Bartlomiej Zolnierkiewicz cfdda3535f ARM: EXYNOS: Fix build breakage cpuidle on !SMP
The Exynos cpuidle driver has coupled cpuidle built-in so it cannot be
built without SMP:

arch/arm/mach-exynos/pm.c: In function 'exynos_cpu0_enter_aftr':
arch/arm/mach-exynos/pm.c:246:4: error: implicit declaration of function 'arch_send_wakeup_ipi_mask' [-Werror=implicit-function-declaration]
arch/arm/mach-exynos/built-in.o: In function 'exynos_pre_enter_aftr':
../arch/arm/mach-exynos/pm.c:300: undefined reference to 'cpu_boot_reg_base'
arch/arm/mach-exynos/built-in.o: In function 'exynos_cpu1_powerdown':
../arch/arm/mach-exynos/pm.c:282: undefined reference to 'exynos_cpu_power_down'

Fix it by adding missing checks for SMP.

Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-18 03:26:11 +09:00
Krzysztof Kozlowski 1cd3de0a27 ARM: EXYNOS: Remove left over 'extra_save'
Since 32b0aa9aae ("ARM: EXYNOS: Remove i2c sys configuration related
code") the Exynos 5250 no longer saves additional registers under
'exynos_pm_data.extra_save' field.

No one else uses this code so get rid of it making also 'exynos_pm_data'
const everywhere.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-18 02:34:38 +09:00
Krzysztof Kozlowski 7383833784 ARM: EXYNOS: Constify exynos_pm_data array
The 'exynos5420_pm_data' is not modified and can be made const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-18 02:34:37 +09:00
Krzysztof Kozlowski 8c8a251130 ARM: EXYNOS: use static in suspend.c
The 'pm_data', 'exynos_release_ret_regs', 'exynos3250_release_ret_regs'
and 'exynos5420_release_ret_regs' are not exported nor used outside of
suspend.c file. Make them static.

This fixes following sparse warnings:
arch/arm/mach-exynos/suspend.c:83:23: warning: symbol 'pm_data' was not declared. Should it be static?
arch/arm/mach-exynos/suspend.c:106:14: warning: symbol 'exynos_release_ret_regs' was not declared. Should it be static?
arch/arm/mach-exynos/suspend.c:117:14: warning: symbol 'exynos5420_release_ret_regs' was not declared. Should it be static?

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-18 02:32:40 +09:00
Krzysztof Kozlowski 70e9d7b59f ARM: EXYNOS: Use platform device name as power domain name
The power domain nodes in DTS may be very generic (e.g. "power-domain"
for Exynos 5420) making it very hard to debug:

$ cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
    domain                      status         slaves
power-domain                    on

Use platform device name instead so the names will be a little more
user friendly:
    domain                      status         slaves
100440e0.power-domain           on

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Suggested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-18 02:19:24 +09:00
Andrzej Hajda 528eae6c14 ARM: EXYNOS: add support for async-bridge clocks for pm_domains
Since Exynos5420 there are async-bridges (ASB) between different IPs. These
bridges must be operational during power domain on/off, ie. clocks used
by these bridges should be enabled.
This patch enabled these clocks during domain on/off.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-18 02:12:23 +09:00
Arnd Bergmann 0be32d2f07 Merge tag 'samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
Merge "Samsung fixes for v4.0" from Kukjin Kim:

* tag samsung-fixes-1:
  ARM: EXYNOS: Fix wrong hwirq of RTC interrupt for Exynos3250 SoC
  ARM: EXYNOS: Don't use LDREX and STREX after disabling cache coherency
2015-03-04 21:01:25 +01:00
Chanwoo Choi ace283a04a ARM: EXYNOS: Fix wrong hwirq of RTC interrupt for Exynos3250 SoC
This patch fixes wrong hwirq of RTC irq for Exynos3250 SoC. When entering
suspend state, 'enable_irq_wake fail' happen because of the mismatch of RTC hwirq.

[  429.200937] Freezing user space processes ... (elapsed 0.002 seconds) done.
[  429.203383] Freezing remaining freezable tasks ... (elapsed 0.000 seconds) done.
[  429.209914] Suspending console(s) (use no_console_suspend to debug)
[  429.370685] wake enabled for irq 65
[  429.370837] wake enabled for irq 64
[  429.370868] wake enabled for irq 79
...
[  429.372120] s3c-rtc 10070000.rtc: enable_irq_wake failed

Fixes: a4f582f5c5 (ARM: EXYNOS: Add exynos3250 suspend-to-ram support)

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-02-27 05:58:19 +09:00
Krzysztof Kozlowski ca489c58ef ARM: EXYNOS: Don't use LDREX and STREX after disabling cache coherency
During CPU shutdown the exynos_cpu_power_down() is called after
disabling cache coherency and it uses LDREX and STREX instructions (by
calling of_machine_is_compatible() -> kobject_get() -> kref_get()).

The LDREX and STREX should not be used after disabling the cache
coherency so just use soc_is_exynos().

Fixes: adc548d77c ("ARM: EXYNOS: Use MCPM call-backs to support S2R
on exynos5420")

Reported-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-02-27 05:50:52 +09:00
Marek Szyprowski 0f7807518f ARM: EXYNOS: add support for sub-power domains
This patch adds support for making one power domain a sub-domain of
other domain. This is useful for modeling power dependences for devices
like TV Mixer or Camera ISP, which needs to have more than one power
domain enabled to be operational.

Based on previous work by Amit Daniel Kachhap <amit.daniel@samsung.com>.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-02-27 05:26:57 +09:00
Uwe Kleine-König 444d2d33d8 ARM: make of_device_ids const
of_device_ids (i.e. compatible strings and the respective data) are not
supposed to change at runtime. All functions working with of_device_ids
provided by <linux/of.h> work with const of_device_ids. So mark the
non-const structs in arch/arm as const, too.

While at it also add some __initconst annotations.

Acked-by: Jason Cooper <jason@lakedameon.net>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-02-19 09:44:25 +01:00
Uwe Kleine-König 543c5040f5 ARM: make arrays containing machine compatible strings const
The definition

	static const char *axxia_dt_match[] __initconst = {
		...

defines a changable array of constant strings. That is you must not do:

	*axxia_dt_match[0] = 'k';

but

	axxia_dt_match[0] = "different string";

is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.

As the struct machine_desc member dt_compat is declared as

	const char *const *dt_compat;

making the arrays const is the better alternative over changing all
annotations to __initdata.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-02-19 09:44:17 +01:00
Linus Torvalds 18656782a8 ARM: SoC driver updates
These are changes for drivers that are intimately tied to some SoC
 and for some reason could not get merged through the respective
 subsystem maintainer tree.
 
 This time around, much of this is for at91, with the bulk of it being syscon
 and udc drivers.
 
 Also, there's:
 - coupled cpuidle support for Samsung Exynos4210
 - Renesas 73A0 common-clk work
 - of/platform changes to tear down DMA mappings on device destruction
 - a few updates to the TI Keystone knav code
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "These are changes for drivers that are intimately tied to some SoC and
  for some reason could not get merged through the respective subsystem
  maintainer tree.

  This time around, much of this is for at91, with the bulk of it being
  syscon and udc drivers.

  Also, there's:
   - coupled cpuidle support for Samsung Exynos4210
   - Renesas 73A0 common-clk work
   - of/platform changes to tear down DMA mappings on device destruction
   - a few updates to the TI Keystone knav code"

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
  cpuidle: exynos: add coupled cpuidle support for exynos4210
  ARM: EXYNOS: apply S5P_CENTRAL_SEQ_OPTION fix only when necessary
  soc: ti: knav_qmss_queue: change knav_range_setup_acc_irq to static
  soc: ti: knav_qmss_queue: makefile tweak to build as dynamic module
  pcmcia: at91_cf: depend on !ARCH_MULTIPLATFORM
  soc: ti: knav_qmss_queue: export API calls for use by user driver
  of/platform: teardown DMA mappings on device destruction
  usb: gadget: at91_udc: Allocate udc instance
  usb: gadget: at91_udc: Update DT binding documentation
  usb: gadget: at91_udc: Rework for multi-platform kernel support
  usb: gadget: at91_udc: Simplify probe and remove functions
  usb: gadget: at91_udc: Remove non-DT handling code
  usb: gadget: at91_udc: Document DT clocks and clock-names property
  usb: gadget: at91_udc: Drop uclk clock
  usb: gadget: at91_udc: Fix clock names
  mfd: syscon: Add Atmel SMC binding doc
  mfd: syscon: Add atmel-smc registers definition
  mfd: syscon: Add Atmel Matrix bus DT binding documentation
  mfd: syscon: Add atmel-matrix registers definition
  clk: shmobile: fix sparse NULL pointer warning
  ...
2015-02-17 09:38:59 -08:00
Linus Torvalds 878ba61aa9 ARM: SoC platform changes
New and updated SoC support. Also included are some cleanups where the
 platform maintainers hadn't separated cleanups from new developent in
 separate branches.
 
 Some of the larger things worth pointing out:
 
 - A large set of changes from Alexandre Belloni and Nicolas Ferre
   preparing at91 platforms for multiplatform and cleaning up quite a
   bit in the process.
 - Removal of CSR's "Marco" SoC platform that never made it out to the
   market. We love seeing these since it means the vendor published
   support before product was out, which is exactly what we want!
 
 New platforms this release are:
 
 - Conexant Digicolor (CX92755 SoC)
 - Hisilicon HiP01 SoC
 - CSR/sirf Atlas7 SoC
 - ST STiH418 SoC
 - Common code changes for Nvidia Tegra132 (64-bit SoC)
 
 We're seeing more and more platforms having a harder time labelling
 changes as cleanups vs new development -- which is a good sign that
 we've come quite far on the cleanup effort. So over time we might start
 combining the cleanup and new-development branches more.
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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.  Also included are some cleanups where
  the platform maintainers hadn't separated cleanups from new developent
  in separate branches.

  Some of the larger things worth pointing out:

   - A large set of changes from Alexandre Belloni and Nicolas Ferre
     preparing at91 platforms for multiplatform and cleaning up quite a
     bit in the process.

   - Removal of CSR's "Marco" SoC platform that never made it out to the
     market.  We love seeing these since it means the vendor published
     support before product was out, which is exactly what we want!

  New platforms this release are:

   - Conexant Digicolor (CX92755 SoC)
   - Hisilicon HiP01 SoC
   - CSR/sirf Atlas7 SoC
   - ST STiH418 SoC
   - Common code changes for Nvidia Tegra132 (64-bit SoC)

  We're seeing more and more platforms having a harder time labelling
  changes as cleanups vs new development -- which is a good sign that
  we've come quite far on the cleanup effort.  So over time we might
  start combining the cleanup and new-development branches more"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (124 commits)
  ARM: at91/trivial: unify functions and machine names
  ARM: at91: remove at91_dt_initialize and machine init_early()
  ARM: at91: change board files into SoC files
  ARM: at91: remove at91_boot_soc
  ARM: at91: move alternative initial mapping to board-dt-sama5.c
  ARM: at91: merge all SOC_AT91SAM9xxx
  ARM: at91: at91rm9200: set idle and restart from rm9200_dt_device_init()
  ARM: digicolor: select syscon and timer
  ARM: zynq: Simplify SLCR initialization
  ARM: zynq: PM: Fixed simple typo.
  ARM: zynq: Setup default gpio number for Xilinx Zynq
  ARM: digicolor: add low level debug support
  ARM: initial support for Conexant Digicolor CX92755 SoC
  ARM: OMAP2+: Add dm816x hwmod support
  ARM: OMAP2+: Add clock domain support for dm816x
  ARM: OMAP2+: Add board-generic.c entry for ti81xx
  ARM: at91: pm: remove warning to remove SOC_AT91SAM9263 usage
  ARM: at91: remove unused mach/system_rev.h
  ARM: at91: stop using HAVE_AT91_DBGUx
  ARM: at91: fix ordering of SRAM and PM initialization
  ...
2015-02-17 09:27:54 -08:00
Linus Torvalds ea7531ac4a ARM: SoC cleanups
This is a good healthy set of various code removals. Total net delta is 8100
 lines removed.
 
 Among the larger cleanups are:
 
 - Removal of old Samsung S3C DMA infrastructure by Arnd
 - Removal of the non-DT version of the 'lager' board by Magnus Damm
 - General stale code removal on OMAP and Davinci by Rickard Strandqvist
 - Removal of non-DT support on am3517 platforms by Tony Lindgren
 
 ... plus several other cleanups of various platforms across the board.
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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 is a good healthy set of various code removals.  Total net delta
  is 8100 lines removed.

  Among the larger cleanups are:

   - Removal of old Samsung S3C DMA infrastructure by Arnd
   - Removal of the non-DT version of the 'lager' board by Magnus Damm
   - General stale code removal on OMAP and Davinci by Rickard Strandqvist
   - Removal of non-DT support on am3517 platforms by Tony Lindgren

  ... plus several other cleanups of various platforms across the board"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (47 commits)
  ARM: sirf: drop redundant function and marco declaration
  arm: omap: specify PMUs are for ARMv7 CPUs
  arm: shmobile: specify PMUs are for ARMv7 CPUs
  arm: iop: specify PMUs are for XScale CPUs
  arm: pxa: specify PMUs are for XScale CPUs
  arm: realview: specify PMU types
  ARM: SAMSUNG: remove unused DMA infrastructure
  ARM: OMAP3: Add back Kconfig option MACH_OMAP3517EVM for ASoC
  ARM: davinci: Remove CDCE949 driver
  ARM: at91: remove useless at91rm9200_set_type()
  ARM: at91: remove useless at91rm9200_dt_initialize()
  ARM: at91: move debug-macro.S into the common space
  ARM: at91: remove useless at91_sysirq_mask_rtx
  ARM: at91: remove useless config MACH_AT91SAM9_DT
  ARM: at91: remove useless config MACH_AT91RM9200_DT
  ARM: at91: remove unused mach/memory.h
  ARM: at91: remove useless header file includes
  ARM: at91: remove unneeded header file
  rtc: at91/Kconfig: remove useless options
  ARM: at91/Documentation: add a README for Atmel SoCs
  ...
2015-02-17 09:17:33 -08:00
Bartlomiej Zolnierkiewicz 712eddf702 cpuidle: exynos: add coupled cpuidle support for exynos4210
The following patch adds coupled cpuidle support for Exynos4210 to
an existing cpuidle-exynos driver.  As a result it enables AFTR mode
to be used by default on Exynos4210 without the need to hot unplug
CPU1 first.

The patch is heavily based on earlier cpuidle-exynos4210 driver from
Daniel Lezcano:

http://www.spinics.net/lists/linux-samsung-soc/msg28134.html

Changes from Daniel's code include:
- porting code to current kernels
- fixing it to work on my setup (by using S5P_INFORM register
  instead of S5P_VA_SYSRAM one on Revison 1.1 and retrying poking
  CPU1 out of the BOOT ROM if necessary)
- fixing rare lockup caused by waiting for CPU1 to get stuck in
  the BOOT ROM (CPU hotplug code in arch/arm/mach-exynos/platsmp.c
  doesn't require this and works fine)
- moving Exynos specific code to arch/arm/mach-exynos/pm.c
- using cpu_boot_reg_base() helper instead of BOOT_VECTOR macro
- using exynos_cpu_*() helpers instead of accessing registers
  directly
- using arch_send_wakeup_ipi_mask() instead of dsb_sev()
  (this matches CPU hotplug code in arch/arm/mach-exynos/platsmp.c)
- integrating separate exynos4210-cpuidle driver into existing
  exynos-cpuidle one

Cc: Colin Cross <ccross@google.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-30 08:39:15 +09:00
Bartlomiej Zolnierkiewicz 865e8b76a0 ARM: EXYNOS: apply S5P_CENTRAL_SEQ_OPTION fix only when necessary
Commit c2dd114d24 ("ARM: EXYNOS: fix register setup for AFTR mode
code") added S5P_CENTRAL_SEQ_OPTION register setup fix for all
Exynos SoCs to AFTR mode code-path.  It turned out that for coupled
cpuidle AFTR mode on Exynos4210 (added by the next patch) applying
this fix causes lockup so enable it in the AFTR mode code-path only
on SoCs that require it (in the suspend code-path it can be always
applied like it was before commit c2dd114d24 ("ARM: EXYNOS: fix
register setup for AFTR mode code")

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Colin Cross <ccross@google.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-30 08:38:52 +09:00
Arnd Bergmann d50b9e2e78 ARM: SAMSUNG: remove unused DMA infrastructure
Everything uses dmaengine now, so there is no reason to
keep this around any longer. Thanks to everyone who was involved
in moving the users over to use the dmaengine APIs.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-24 13:09:54 +09:00
Tomasz Figa 30ad527a64 ARM: 8264/1: EXYNOS: Add support for non-secure L2X0 resume
On Exynos SoCs it is necessary to resume operation of L2C early in
assembly code, because otherwise certain systems will crash. This patch
adds necessary code to non-secure resume handler.

[rewrote the code accessing l2x0_saved_regs]

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-16 14:35:39 +00:00
Tomasz Figa 5445b640f3 ARM: 8263/1: EXYNOS: Add .write_sec outer cache callback for L2C-310
Exynos4 SoCs equipped with an L2C-310 cache controller and running under
secure firmware require certain registers of aforementioned IP to be
accessed only from secure mode. This means that SMC calls are required
for certain register writes. To handle this, an implementation of
.write_sec and .configure callbacks is provided by this patch.

[added comment and reworked unconditional call to SMC_CMD_L2X0INVALL]

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-16 14:35:37 +00:00
Chanwoo Choi a4f582f5c5 ARM: EXYNOS: Add exynos3250 suspend-to-ram support
This patch supports suspend-to-ram for Exynos3250 SoC
and the SoC doesn't contain L2 cache.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-15 00:24:26 +09:00
Sjoerd Simons adacba5819 ARM: EXYNOS: Recognize Samsung MFC v8 devices
Also setup memory allocations for version 8 of the MFC as present in
Samsung Exynos 5422/5800 SoCs

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-12 17:46:36 +09:00
Pankaj Dubey 32b0aa9aae ARM: EXYNOS: Remove i2c sys configuration related code
As all these code has been moved into i2c driver, now we can
safely remove them from machine files.

CC: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-09 01:14:23 +09:00
Linus Torvalds c0f486fde3 More ACPI and power management updates for 3.19-rc1
- Fix a regression in leds-gpio introduced by a recent commit that
    inadvertently changed the name of one of the properties used by
    the driver (Fabio Estevam).
 
  - Fix a regression in the ACPI backlight driver introduced by a
    recent fix that missed one special case that had to be taken
    into account (Aaron Lu).
 
  - Drop the level of some new kernel messages from the ACPI core
    introduced by a recent commit to KERN_DEBUG which they should
    have used from the start and drop some other unuseful KERN_ERR
    messages printed by ACPI (Rafael J Wysocki).
 
  - Revert an incorrect commit modifying the cpupower tool
    (Prarit Bhargava).
 
  - Fix two regressions introduced by recent commits in the OPP
    library and clean up some existing minor issues in that code
    (Viresh Kumar).
 
  - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout
    the tree (or drop it where that can be done) in order to make
    it possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki,
    Ulf Hansson, Ludovic Desroches).  There will be one more
    "CONFIG_PM_RUNTIME removal" batch after this one, because some
    new uses of it have been introduced during the current merge
    window, but that should be sufficient to finally get rid of it.
 
  - Make the ACPI EC driver more robust against race conditions
    related to GPE handler installation failures (Lv Zheng).
 
  - Prevent the ACPI device PM core code from attempting to
    disable GPEs that it has not enabled which confuses ACPICA
    and makes it report errors unnecessarily (Rafael J Wysocki).
 
  - Add a "force" command line switch to the intel_pstate driver
    to make it possible to override the blacklisting of some
    systems in that driver if needed (Ethan Zhao).
 
  - Improve intel_pstate code documentation and add a MAINTAINERS
    entry for it (Kristen Carlson Accardi).
 
  - Make the ACPI fan driver create cooling device interfaces
    witn names that reflect the IDs of the ACPI device objects
    they are associated with, except for "generic" ACPI fans
    (PNP ID "PNP0C0B").  That's necessary for user space thermal
    management tools to be able to connect the fans with the
    parts of the system they are supposed to be cooling properly.
    From Srinivas Pandruvada.
 
 /
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Merge tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI and power management updates from Rafael Wysocki:
 "These are regression fixes (leds-gpio, ACPI backlight driver,
  operating performance points library, ACPI device enumeration
  messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device
  PM), some cleanups in the operating performance points (OPP)
  framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of
  minor intel_pstate driver changes, a new MAINTAINERS entry for it and
  an ACPI fan driver change needed for better support of thermal
  management in user space.

  Specifics:

   - Fix a regression in leds-gpio introduced by a recent commit that
     inadvertently changed the name of one of the properties used by the
     driver (Fabio Estevam).

   - Fix a regression in the ACPI backlight driver introduced by a
     recent fix that missed one special case that had to be taken into
     account (Aaron Lu).

   - Drop the level of some new kernel messages from the ACPI core
     introduced by a recent commit to KERN_DEBUG which they should have
     used from the start and drop some other unuseful KERN_ERR messages
     printed by ACPI (Rafael J Wysocki).

   - Revert an incorrect commit modifying the cpupower tool (Prarit
     Bhargava).

   - Fix two regressions introduced by recent commits in the OPP library
     and clean up some existing minor issues in that code (Viresh
     Kumar).

   - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the
     tree (or drop it where that can be done) in order to make it
     possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf
     Hansson, Ludovic Desroches).

     There will be one more "CONFIG_PM_RUNTIME removal" batch after this
     one, because some new uses of it have been introduced during the
     current merge window, but that should be sufficient to finally get
     rid of it.

   - Make the ACPI EC driver more robust against race conditions related
     to GPE handler installation failures (Lv Zheng).

   - Prevent the ACPI device PM core code from attempting to disable
     GPEs that it has not enabled which confuses ACPICA and makes it
     report errors unnecessarily (Rafael J Wysocki).

   - Add a "force" command line switch to the intel_pstate driver to
     make it possible to override the blacklisting of some systems in
     that driver if needed (Ethan Zhao).

   - Improve intel_pstate code documentation and add a MAINTAINERS entry
     for it (Kristen Carlson Accardi).

   - Make the ACPI fan driver create cooling device interfaces witn
     names that reflect the IDs of the ACPI device objects they are
     associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B").

     That's necessary for user space thermal management tools to be able
     to connect the fans with the parts of the system they are supposed
     to be cooling properly.  From Srinivas Pandruvada"

* tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  MAINTAINERS: add entry for intel_pstate
  ACPI / video: update the skip case for acpi_video_device_in_dod()
  power / PM: Eliminate CONFIG_PM_RUNTIME
  NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  ACPI / EC: Fix unexpected ec_remove_handlers() invocations
  Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
  tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
  PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
  mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
  PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
  ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  ACPI / PM: Do not disable wakeup GPEs that have not been enabled
  ACPI / utils: Drop error messages from acpi_evaluate_reference()
  ...
2014-12-18 20:28:33 -08:00
Rafael J. Wysocki 1b3e3aa6c5 PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
After commit b2b49ccbdd (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so Kconfig options
depending on CONFIG_PM_RUNTIME may now be changed to depend on
CONFIG_PM.

Replace PM_RUNTIME with PM in Kconfig dependencies throughout the
tree.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Tejun Heo <tj@kernel.org>
2014-12-13 00:44:04 +01:00
Linus Torvalds a7cb7bb664 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree update from Jiri Kosina:
 "Usual stuff: documentation updates, printk() fixes, etc"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits)
  intel_ips: fix a type in error message
  cpufreq: cpufreq-dt: Move newline to end of error message
  ps3rom: fix error return code
  treewide: fix typo in printk and Kconfig
  ARM: dts: bcm63138: change "interupts" to "interrupts"
  Replace mentions of "list_struct" to "list_head"
  kernel: trace: fix printk message
  scsi: mpt2sas: fix ioctl in comment
  zbud, zswap: change module author email
  clocksource: Fix 'clcoksource' typo in comment
  arm: fix wording of "Crotex" in CONFIG_ARCH_EXYNOS3 help
  gpio: msm-v1: make boolean argument more obvious
  usb: Fix typo in usb-serial-simple.c
  PCI: Fix comment typo 'COMFIG_PM_OPS'
  powerpc: Fix comment typo 'CONIFG_8xx'
  powerpc: Fix comment typos 'CONFiG_ALTIVEC'
  clk: st: Spelling s/stucture/structure/
  isci: Spelling s/stucture/structure/
  usb: gadget: zero: Spelling s/infrastucture/infrastructure/
  treewide: Fix company name in module descriptions
  ...
2014-12-12 10:08:06 -08:00
Linus Torvalds 6cd94d5e57 ARM: SoC platform changes for 3.19
New and updated SoC support, notable changes include:
 
 * bcm: brcmstb SMP support
 * bcm: initial iproc/cygnus support
 * exynos: Exynos4415 SoC support
 * exynos: PMU and suspend support for Exynos5420
 * exynos: PMU support for Exynos3250
 * exynos: pm related maintenance
 * imx: new LS1021A SoC support
 * imx: vybrid 610 global timer support
 * integrator: convert to using multiplatform configuration
 * mediatek: earlyprintk support for mt8127/mt8135
 * meson: meson8 soc and l2 cache controller support
 * mvebu: Armada 38x CPU hotplug support
 * mvebu: drop support for prerelease Armada 375 Z1 stepping
 * mvebu: extended suspend support, now works on Armada 370/XP
 * omap: hwmod related maintenance
 * omap: prcm cleanup
 * pxa: initial pxa27x DT handling
 * rockchip: SMP support for rk3288
 * rockchip: add cpu frequency scaling support
 * shmobile: r8a7740 power domain support
 * shmobile: various small restart, timer, pci apmu changes
 * sunxi: Allwinner A80 (sun9i) earlyprintk support
 * ux500: power domain support
 
 Overall, a significant chunk of changes, coming mostly from
 the usual suspects: omap, shmobile, samsung and mvebu, all of
 which already contain a lot of platform specific code in
 arch/arm.
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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 Arnd Bergmann:
 "New and updated SoC support, notable changes include:

   - bcm:
        brcmstb SMP support
        initial iproc/cygnus support
   - exynos:
        Exynos4415 SoC support
        PMU and suspend support for Exynos5420
        PMU support for Exynos3250
        pm related maintenance
   - imx:
        new LS1021A SoC support
        vybrid 610 global timer support
   - integrator:
        convert to using multiplatform configuration
   - mediatek:
        earlyprintk support for mt8127/mt8135
   - meson:
        meson8 soc and l2 cache controller support
   - mvebu:
        Armada 38x CPU hotplug support
        drop support for prerelease Armada 375 Z1 stepping
        extended suspend support, now works on Armada 370/XP
   - omap:
        hwmod related maintenance
        prcm cleanup
   - pxa:
        initial pxa27x DT handling
   - rockchip:
        SMP support for rk3288
        add cpu frequency scaling support
   - shmobile:
        r8a7740 power domain support
        various small restart, timer, pci apmu changes
   - sunxi:
        Allwinner A80 (sun9i) earlyprintk support
   - ux500:
        power domain support

  Overall, a significant chunk of changes, coming mostly from the usual
  suspects: omap, shmobile, samsung and mvebu, all of which already
  contain a lot of platform specific code in arch/arm"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (187 commits)
  ARM: mvebu: use the cpufreq-dt platform_data for independent clocks
  soc: integrator: Add terminating entry for integrator_cm_match
  ARM: mvebu: add SDRAM controller description for Armada XP
  ARM: mvebu: adjust mbus controller description on Armada 370/XP
  ARM: mvebu: add suspend/resume DT information for Armada XP GP
  ARM: mvebu: synchronize secondary CPU clocks on resume
  ARM: mvebu: make sure MMU is disabled in armada_370_xp_cpu_resume
  ARM: mvebu: Armada XP GP specific suspend/resume code
  ARM: mvebu: reserve the first 10 KB of each memory bank for suspend/resume
  ARM: mvebu: implement suspend/resume support for Armada XP
  clk: mvebu: add suspend/resume for gatable clocks
  bus: mvebu-mbus: provide a mechanism to save SDRAM window configuration
  bus: mvebu-mbus: suspend/resume support
  clocksource: time-armada-370-xp: add suspend/resume support
  irqchip: armada-370-xp: Add suspend/resume support
  ARM: add lolevel debug support for asm9260
  ARM: add mach-asm9260
  ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf
  power: reset: imx-snvs-poweroff: add power off driver for i.mx6
  ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A
  ...
2014-12-09 14:38:28 -08:00
Linus Torvalds 6c9e92476b ARM: SoC cleanups for 3.19
The remaining cleanups for 3.19 are to a large part result of
 devicetree conversion nearing completion on two other platforms
 besides AT91:
 
 * Like AT91, Renesas shmobile is in the process to migrate to DT and
   multiplatform, but using a different approach of doing it one
   SoC at a time. For 3.19, the r8a7791 platform and associated\
   "Koelsch" board are considered complete and we remove the non-DT
   non-multiplatform support for this.
 
 * The ARM Versatile Express has supported DT and multiplatform
   for a long time, but we have still kept the legacy board files
   around, because not all drivers were fully working before. We
   have finally taken the last step to remove the board files.
 
 Other changes in this branch are preparation for the later branches
 or just unrelated to the more interesting changes:
 * The dts files for arm64 get moved into per-vendor directories for
   a clearer structure.
 * Some dead code removal (zynq, exynos, davinci, imx)
 * Using pr_*() macros more consistently instead of printk(KERN_*)
   in some platform code.
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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 Arnd Bergmann:
 "The remaining cleanups for 3.19 are to a large part result of
  devicetree conversion nearing completion on two other platforms
  besides AT91:

   - Like AT91, Renesas shmobile is in the process to migrate to DT and
     multiplatform, but using a different approach of doing it one SoC
     at a time.  For 3.19, the r8a7791 platform and associated "Koelsch"
     board are considered complete and we remove the non-DT
     non-multiplatform support for this.

   - The ARM Versatile Express has supported DT and multiplatform for a
     long time, but we have still kept the legacy board files around,
     because not all drivers were fully working before.  We have finally
     taken the last step to remove the board files.

  Other changes in this branch are preparation for the later branches or
  just unrelated to the more interesting changes:

   - The dts files for arm64 get moved into per-vendor directories for a
     clearer structure.

   - Some dead code removal (zynq, exynos, davinci, imx)

   - Using pr_*() macros more consistently instead of printk(KERN_*) in
     some platform code"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (71 commits)
  ARM: zynq: Remove secondary_startup() declaration from header
  ARM: vexpress: Enable regulator framework when MMCI is in use
  ARM: vexpress: Remove non-DT code
  ARM: imx: Remove unneeded .map_io initialization
  ARM: dts: imx6qdl-sabresd: Fix the microphone route
  ARM: imx: refactor mxc_iomux_mode()
  ARM: imx: simplify clk_pllv3_prepare()
  ARM: imx6q: drop unnecessary semicolon
  ARM: imx: clean up machine mxc_arch_reset_init_dt reset init
  ARM: dts: imx6qdl-rex: Remove unneeded 'fsl,mode' property
  ARM: dts: imx6qdl-gw5x: Remove unneeded 'fsl,mode' property
  ARM: dts: imx6qdl-sabresd: Use IMX6QDL_CLK_CKO define
  ARM: at91: remove useless init_time for DT-only SoCs
  ARM: davinci: Remove redundant casts
  ARM: davinci: Use standard logging styles
  ARM: shmobile: r8a7779: Spelling/grammar s/entity/identity/, s/map/mapping/
  ARM: shmobile: sh7372: Spelling/grammar s/entity map/identity mapping/
  ARM: shmobile: sh73a0: Spelling/grammar s/entity map/identity mapping/
  ARM: EXYNOS: Remove unused static iomapping
  ARM: at91: fix build breakage due to legacy board removals
  ...
2014-12-09 14:18:35 -08:00
Bartlomiej Zolnierkiewicz b04fa9f704 ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf
Values stored in val[] are never bigger than a byte.

   text    data     bss     dec     hex filename
   7716    3692       8   11416    2c98 arch/arm/mach-exynos/pmu.o.before
   5436    1908       8    7352    1cb8 arch/arm/mach-exynos/pmu.o.after

Cc: Pankaj Dubey <pankaj.dubey@samsung.com>
Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-27 02:47:05 +09:00
Pankaj Dubey 8cfc7fdd33 ARM: EXYNOS: move restart code into pmu driver
Let's register restart handler from PMU driver for restart
functionality. So that we can remove restart hooks from
machine specific file, and thus moving ahead when PMU moved
to driver folder, this functionality can be reused for ARM64
based Exynos SoC's.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-22 23:10:23 +09:00