Commit Graph

1027 Commits

Author SHA1 Message Date
Linus Torvalds 24e44913aa ARM: SoC platform updates
SoC platform changes. Main theme this merge window:
 
  - The Netx platform (Netx 100/500) platform is removed by Linus Walleij--
    the SoC doesn't have active maintainers with hardware, and in
    discussions with the vendor the agreement was that it's OK to remove.
 
  - Russell King has a series of patches that cleans up and refactors
    SA1101 and RiscPC support.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform updates from Olof Johansson:
 "SoC platform changes. Main theme this merge window:

   - The Netx platform (Netx 100/500) platform is removed by Linus
     Walleij-- the SoC doesn't have active maintainers with hardware,
     and in discussions with the vendor the agreement was that it's OK
     to remove.

   - Russell King has a series of patches that cleans up and refactors
     SA1101 and RiscPC support"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits)
  ARM: stm32: use "depends on" instead of "if" after prompt
  ARM: sa1100: convert to common clock framework
  ARM: exynos: Cleanup cppcheck shifting warning
  ARM: pxa/lubbock: remove lubbock_set_misc_wr() from global view
  ARM: exynos: Only build MCPM support if used
  arm: add missing include platform-data/atmel.h
  ARM: davinci: Use GPIO lookup table for DA850 LEDs
  ARM: OMAP2: drop explicit assembler architecture
  ARM: use arch_extension directive instead of arch argument
  ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading
  ARM: bcm: Enable PINCTRL for ARCH_BRCMSTB
  ARM: bcm: Enable ARCH_HAS_RESET_CONTROLLER for ARCH_BRCMSTB
  ARM: riscpc: enable chained scatterlist support
  ARM: riscpc: reduce IRQ handling code
  ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc
  ARM: riscpc: parse video information from tagged list
  ARM: riscpc: add ecard quirk for Atomwide 3port serial card
  MAINTAINERS: mvebu: Add git entry
  soc: ti: pm33xx: Add a print while entering RTC only mode with DDR in self-refresh
  ARM: OMAP2+: Make some variables static
  ...
2019-07-19 17:05:08 -07:00
Mauro Carvalho Chehab dc7a12bdfc docs: arm: convert docs to ReST and rename to *.rst
Converts ARM the text files to ReST, preparing them to be an
architecture book.

The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by Corentin Labbe <clabbe.montjoie@gmail.com> # For sun4i-ss
2019-07-15 09:20:24 -03:00
Olof Johansson da4d0b2891 Samsung mach/soc changes for v5.3
Only cleanups and minor fixes.
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Merge tag 'samsung-soc-5.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc

Samsung mach/soc changes for v5.3

Only cleanups and minor fixes.

* tag 'samsung-soc-5.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: exynos: Cleanup cppcheck shifting warning
  ARM: exynos: Only build MCPM support if used
  ARM: exynos: Make ARCH_EXYNOS3 a default option

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-26 19:30:10 -07:00
Phong Tran a55e040c6f ARM: exynos: Cleanup cppcheck shifting warning
Fix warning from cppcheck tool:
"Shifting signed 32-bit value by 31 bits is undefined behaviour errors"

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-06-25 20:45:09 +02:00
Arnd Bergmann 24d2c73ff2 ARM: exynos: Only build MCPM support if used
We get a link error for configurations that enable an Exynos
SoC that does not require MCPM, but then manually enable
MCPM anyway without also turning on the arm-cci:

arch/arm/mach-exynos/mcpm-exynos.o: In function `exynos_pm_power_up_setup':
mcpm-exynos.c:(.text+0x8): undefined reference to `cci_enable_port_for_self'

Change it back to only build the code we actually need, by
introducing a CONFIG_EXYNOS_MCPM that serves the same purpose
as the older CONFIG_EXYNOS5420_MCPM.

Fixes: 2997520c2d ("ARM: exynos: Set MCPM as mandatory for Exynos542x/5800 SoCs")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-06-21 20:09:35 +02:00
Stefan Agner 3fe1ee40b2 ARM: use arch_extension directive instead of arch argument
The LLVM Target parser currently does not allow to specify the security
extension as part of -march (see also LLVM Bug 40186 [0]). When trying
to use Clang with LLVM's integrated assembler, this leads to build
errors such as this:
  clang-8: error: the clang compiler does not support '-Wa,-march=armv7-a+sec'

Use ".arch_extension sec" to enable the security extension in a more
portable fasion. Also make sure to use ".arch armv7-a" in case a v6/v7
multi-platform kernel is being built.

Note that this is technically not exactly the same as the old code
checked for availabilty of the security extension by calling as-instr.
However, there are already other sites which use ".arch_extension sec"
unconditionally, hence de-facto we need an assembler capable of
".arch_extension sec" already today (arch/arm/mm/proc-v7.S). The
arch extension "sec" is available since binutils 2.21 according to
its documentation [1].

[0] https://bugs.llvm.org/show_bug.cgi?id=40186
[1] https://sourceware.org/binutils/docs-2.21/as/ARM-Options.html

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Mans Rullgard <mans@mansr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 09:44:25 -07:00
Krzysztof Kozlowski 0cca82ec34 ARM: exynos: Make ARCH_EXYNOS3 a default option
By default for ARMv7 Exynos platform we select all flavors.  One kernel
image simplifies testing and maintenance.  However Exynos3 was not
selected by default so far (thus it was not present in multi_v7
kernel).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-05-30 21:07:26 +02:00
Marek Szyprowski 2997520c2d ARM: exynos: Set MCPM as mandatory for Exynos542x/5800 SoCs
Support for Exynos5420/5422/5800 SoCs requires MCPM to properly boot all
CPU cores on all currectly supported platforms: Peach Pit (Exynos5420),
Odroid XU3/XU3lite/XU4/HC1 (Exynos5422) and Peach Pi (Exynos5800).
Without it some CPU cores fail to come online. Remove then the ability to
disable MCPM and make it mandatory when Exynos542x/5800 support is
enabled.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-04-10 17:58:22 +02:00
Marek Szyprowski 98a3308ea8 ARM: exynos: Fix infinite loops on CPU powerup failure
Add timeout to infinite loops during the CPU powerup procedures. It
is better to report an error instead of busylooping for infinite time
in case of failure.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-04-09 15:07:33 +02:00
Wen Yang 629266bf72 ARM: exynos: Fix a leaked reference by adding missing of_node_put
The call to of_get_next_child returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.

Detected by coccinelle with warnings like:
    arch/arm/mach-exynos/firmware.c:201:2-8: ERROR: missing of_node_put;
        acquired a node pointer with refcount incremented on line 193,
        but without a corresponding object release within this function.

Cc: stable@vger.kernel.org
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-03-19 21:34:38 +01:00
Marek Szyprowski 4d8e3e951a ARM: exynos: Fix undefined instruction during Exynos5422 resume
During early system resume on Exynos5422 with performance counters enabled
the following kernel oops happens:

    Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP ARM
    Modules linked in:
    CPU: 0 PID: 1433 Comm: bash Tainted: G        W         5.0.0-rc5-next-20190208-00023-gd5fb5a8a13e6-dirty #5480
    Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
    ...
    Flags: nZCv  IRQs off  FIQs off  Mode SVC_32  ISA ARM  Segment none
    Control: 10c5387d  Table: 4451006a  DAC: 00000051
    Process bash (pid: 1433, stack limit = 0xb7e0e22f)
    ...
    (reset_ctrl_regs) from [<c0112ad0>] (dbg_cpu_pm_notify+0x1c/0x24)
    (dbg_cpu_pm_notify) from [<c014c840>] (notifier_call_chain+0x44/0x84)
    (notifier_call_chain) from [<c014cbc0>] (__atomic_notifier_call_chain+0x7c/0x128)
    (__atomic_notifier_call_chain) from [<c01ffaac>] (cpu_pm_notify+0x30/0x54)
    (cpu_pm_notify) from [<c055116c>] (syscore_resume+0x98/0x3f4)
    (syscore_resume) from [<c0189350>] (suspend_devices_and_enter+0x97c/0xe74)
    (suspend_devices_and_enter) from [<c0189fb8>] (pm_suspend+0x770/0xc04)
    (pm_suspend) from [<c0187740>] (state_store+0x6c/0xcc)
    (state_store) from [<c09fa698>] (kobj_attr_store+0x14/0x20)
    (kobj_attr_store) from [<c030159c>] (sysfs_kf_write+0x4c/0x50)
    (sysfs_kf_write) from [<c0300620>] (kernfs_fop_write+0xfc/0x1e0)
    (kernfs_fop_write) from [<c0282be8>] (__vfs_write+0x2c/0x160)
    (__vfs_write) from [<c0282ea4>] (vfs_write+0xa4/0x16c)
    (vfs_write) from [<c0283080>] (ksys_write+0x40/0x8c)
    (ksys_write) from [<c0101000>] (ret_fast_syscall+0x0/0x28)

Undefined instruction is triggered during CP14 reset, because bits: #16
(Secure privileged invasive debug disabled) and #17 (Secure privileged
noninvasive debug disable) are set in DSCR. Those bits depend on SPNIDEN
and SPIDEN lines, which are provided by Secure JTAG hardware block. That
block in turn is powered from cluster 0 (big/Eagle), but the Exynos5422
boots on cluster 1 (LITTLE/KFC).

To fix this issue it is enough to turn on the power on the cluster 0 for
a while. This lets the Secure JTAG block to propagate the needed signals
to LITTLE/KFC cores and change their DSCR.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-03-19 21:08:28 +01:00
Joonyoung Shim 3a1f2f38fb ARM: exynos: Add CPU state management for Exynos542x under secure firmware
Add required CPU state management done via secure monitor call for
Exynos542x running unsed Secure Firmware.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
[mszyprow: rewrote code to use defines and sysram base address instead
 of the magic numbers, added second smc call in pm_resume, rephrased
 subject and commit message]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-03-19 21:07:47 +01:00
Marek Szyprowski 47efaf6ba6 ARM: exynos: Add Exynos SMC values for secure memory write
Add defines for the (secure)-memory write for Exynos Secure Monitor
Call. The values comes from the vendor kernel.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-03-19 21:07:47 +01:00
Marek Szyprowski e74673120b ARM: exynos: Move Exynos542x CPU state reset to pm_prepare()
Reset the CPU state entry in sysram in pm_prepare() callback. That entry
doesn't need to be reset for every suspended CPU, so make it symmetic
with the code, which restores it in pm_resume() callback.

Tested on Samsung Chromebook2 Pit (Exynos5420) and Pi (Exynos5800)
boards.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-03-19 21:02:12 +01:00
Linus Torvalds 0be2886307 ARM updates for 5.1-rc1
- An improvement from Ard Biesheuvel, who noted that the identity map
   setup was taking a long time due to flush_cache_louis().
 - Update a comment about dma_ops from Wolfram Sang.
 - Remove use of "-p" with ld, where this flag has been a no-op since
   2004.
 - Remove the printing of the virtual memory layout, which is no longer
   useful since we hide pointers.
 - Correct SCU help text.
 - Remove legacy TWD registration method.
 - Add pgprot_device() implementation for mapping PCI sysfs resource
   files.
 - Initialise PFN limits earlier for kmemleak.
 - Fix argument count to match macro definition (affects clang builds)
 - Use unified assembler language almost everywhere for clang, and
   other clang improvements (from Stefan Agner, Nathan Chancellor).
 - Support security extension for noMMU and other noMMU cleanups
   (from Vladimir Murzin).
 - Remove unnecessary SMP bringup code (which was incorrectly copy'n'
   pasted from the ARM platform implementations) and remove it from
   the arch code to discourge further copys of it appearing.
 - Add Cortex A9 erratum preventing kexec working on some SoCs.
 - AMBA bus identification updates from Mike Leach.
 - More use of raw spinlocks to avoid -RT kernel issues
   (from Yang Shi and Sebastian Andrzej Siewior).
 - MCPM hyp/svc mode mismatch fixes from Marek Szyprowski.
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM updates from Russell King:

 - An improvement from Ard Biesheuvel, who noted that the identity map
   setup was taking a long time due to flush_cache_louis().

 - Update a comment about dma_ops from Wolfram Sang.

 - Remove use of "-p" with ld, where this flag has been a no-op since
   2004.

 - Remove the printing of the virtual memory layout, which is no longer
   useful since we hide pointers.

 - Correct SCU help text.

 - Remove legacy TWD registration method.

 - Add pgprot_device() implementation for mapping PCI sysfs resource
   files.

 - Initialise PFN limits earlier for kmemleak.

 - Fix argument count to match macro definition (affects clang builds)

 - Use unified assembler language almost everywhere for clang, and other
   clang improvements (from Stefan Agner, Nathan Chancellor).

 - Support security extension for noMMU and other noMMU cleanups (from
   Vladimir Murzin).

 - Remove unnecessary SMP bringup code (which was incorrectly copy'n'
   pasted from the ARM platform implementations) and remove it from the
   arch code to discourge further copys of it appearing.

 - Add Cortex A9 erratum preventing kexec working on some SoCs.

 - AMBA bus identification updates from Mike Leach.

 - More use of raw spinlocks to avoid -RT kernel issues (from Yang Shi
   and Sebastian Andrzej Siewior).

 - MCPM hyp/svc mode mismatch fixes from Marek Szyprowski.

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (32 commits)
  ARM: 8849/1: NOMMU: Fix encodings for PMSAv8's PRBAR4/PRLAR4
  ARM: 8848/1: virt: Align GIC version check with arm64 counterpart
  ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
  ARM: 8845/1: use unified assembler in c files
  ARM: 8844/1: use unified assembler in assembly files
  ARM: 8843/1: use unified assembler in headers
  ARM: 8841/1: use unified assembler in macros
  ARM: 8840/1: use a raw_spinlock_t in unwind
  ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
  ARM: 8837/1: coresight: etmv4: Update ID register table to add UCI support
  ARM: 8836/1: drivers: amba: Update component matching to use the CoreSight UCI values.
  ARM: 8838/1: drivers: amba: Updates to component identification for driver matching.
  ARM: 8833/1: Ensure that NEON code always compiles with Clang
  ARM: avoid Cortex-A9 livelock on tight dmb loops
  ARM: smp: remove arch-provided "pen_release"
  ARM: actions: remove boot_lock and pen_release
  ARM: oxnas: remove CPU hotplug implementation
  ARM: qcom: remove unnecessary boot_lock
  ARM: 8832/1: NOMMU: Limit visibility for CONFIG_FLASH_{MEM_BASE,SIZE}
  ARM: 8831/1: NOMMU: pmsa-v8: remove unneeded semicolon
  ...
2019-03-15 14:37:46 -07:00
Russell King 6213f70e7c ARM: smp: remove arch-provided "pen_release"
Consolidating the "pen_release" stuff amongst the various SoC
implementations gives credence to having a CPU holding pen for
secondary CPUs.  However, this is far from the truth.

Many SoC implementations cargo-cult copied various bits of the pen
release implementation from the initial Realview/Versatile Express
implementation without understanding what it was or why it existed.
The reason it existed is because these are _development_ platforms,
and some board firmware is unable to individually control the
startup of secondary CPUs.  Moreover, they do not have a way to
power down or reset secondary CPUs for hot-unplug.  Hence, the
pen_release implementation was designed for ARM Ltd's development
platforms to provide a working implementation, even though it is
very far from what is required.

It was decided a while back to reduce the duplication by consolidating
the "pen_release" variable, but this only made the situation worse -
we have ended up with several implementations that read this variable
but do not write it - again, showing the cargo-cult mentality at work,
lack of proper review of new code, and in some cases a lack of testing.

While it would be preferable to remove pen_release entirely from the
kernel, this is not possible without help from the SoC maintainers,
which seems to be lacking.  However, I want to remove pen_release from
arch code to remove the credence that having it gives.

This patch removes pen_release from the arch code entirely, adding
private per-SoC definitions for it instead, and explicitly stating
that write_pen_release() is cargo-cult copied and should not be
copied any further.  Rename write_pen_release() in a similar fashion
as well.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-01 22:05:23 +00:00
Stuart Menefy 4bdf2f3f20 ARM: exynos: Fix timeout when booting secondary CPUs
Without this fix the loop waiting for the timeout exits, but the
subsequent test to see if the timeout occurred fails.

Signed-off-by: Stuart Menefy <stuart.menefy@mathembedded.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-02-01 20:07:47 +01:00
Pankaj Dubey cafbc79e32 ARM: exynos: Remove secondary startup initialization from smp_prepare_cpus
We are taking care of setting secondary cpu boot address in
exynos_boot_secondary just before sending ipi to secondary CPUs,
so we can safely remove this setting from smp_prepare_cpus.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-11-18 15:12:50 +01:00
Bartlomiej Zolnierkiewicz b1658855f0 ARM: samsung: Limit SAMSUNG_PM_DEBUG config option to non-Exynos platforms
"Samsung PM Suspend debug" feature (controlled by SAMSUNG_PM_DEBUG
config option) is not working properly (debug messages are not
displayed after resume) on Exynos platforms because GPIOs restore
code is not implemented.

Add PLAT_S3C24XX, ARCH_S3C64XX and ARCH_S5PV210 dependencies to
SAMSUNG_PM_DEBUG config option to hide it on Exynos platforms.
Then convert Exynos code to not require <plat/pm-common.h>
header (use pr_debug() directly instead of S3C_PMDBG() macro and
remove redundant s3c_pm_*() calls).

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-11-18 15:11:27 +01:00
Bartlomiej Zolnierkiewicz 7b981b18a4 ARM: exynos: Remove no longer needed s3c_pm_check_*() calls
Since commit 6862fdf220 ("ARM: samsung: Limit SAMSUNG_PM_CHECK
config option to non-Exynos platforms") s3c_pm_check_*() calls
are redundant and can be removed.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-11-12 21:27:56 +01:00
Krzysztof Kozlowski 2c80920f66 ARM: exynos: Remove legacy setting of external wakeup interrupts
Since Exynos/S5Pv210 pin-controller driver is taking care about setting
the external wakeup interrupts mask, the legacy code can be removed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Sylwester Nawrocki <snawrocki@kernel.org>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
2018-11-12 21:20:03 +01:00
Krzysztof Kozlowski e0b35c1ab5 ARM: exynos: Fix imprecise abort during Exynos5422 suspend to RAM
Suspend to RAM on Odroid XU3/XU4/HC1 family (Exynos5422) causes
imprecise abort:

	PM: Syncing filesystems ... done.
	Freezing user space processes ... (elapsed 0.003 seconds) done.
	OOM killer disabled.
	Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done.
	wake enabled for irq 139
	Disabling non-boot CPUs ...
	IRQ51 no longer affine to CPU1
	IRQ52 no longer affine to CPU2
	IRQ53 no longer affine to CPU3
	IRQ54 no longer affine to CPU4
	IRQ55 no longer affine to CPU5
	IRQ56 no longer affine to CPU6
	cpu cpu4: Dropping the link to regulator.40
	IRQ57 no longer affine to CPU7
	Unhandled fault: external abort on non-linefetch (0x1008) at 0xf081a028
	Internal error: : 1008 [#1] PREEMPT SMP ARM

with last call trace in exynos_suspend_enter().

The abort is caused by writing to register in secure part of sysram.
Boards booted under secure firmware (e.g. Hardkernel Odroid boards)
should access non-secure sysram.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-30 19:46:06 +02:00
Krzysztof Kozlowski 687b5ae2e6 ARM: exynos: Store Exynos5420 register state in one variable
Instead of keeping two static variables put them into one struct which
later can grow.  This will reduce number of file-scope symbols.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-30 19:45:15 +02:00
Linus Torvalds 9e259f9352 ARM: 32-bit SoC platform updates
Most of the SoC updates in this cycle are cleanups and moves to more
 modern infrastructure:
  - Davinci was moved to common clock framework
  - OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
    keyboard interface (bitbanged AT keyboard via GPIO).
  - Removal of some stale code for Renesas platforms
  - Power management improvements for i.MX6LL
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM 32-bit SoC platform updates from Olof Johansson:
 "Most of the SoC updates in this cycle are cleanups and moves to more
  modern infrastructure:

   - Davinci was moved to common clock framework

   - OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
     keyboard interface (bitbanged AT keyboard via GPIO).

   - Removal of some stale code for Renesas platforms

   - Power management improvements for i.MX6LL"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (112 commits)
  ARM: uniphier: select RESET_CONTROLLER
  arm64: uniphier: select RESET_CONTROLLER
  ARM: uniphier: remove empty Makefile
  ARM: exynos: Clear global variable on init error path
  ARM: exynos: Remove outdated maintainer information
  ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15
  ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill
  soc: r9a06g032: don't build SMP files for non-SMP config
  ARM: shmobile: Add the R9A06G032 SMP enabler driver
  ARM: at91: pm: configure wakeup sources for ULP1 mode
  ARM: at91: pm: add PMC fast startup registers defines
  ARM: at91: pm: Add ULP1 mode support
  ARM: at91: pm: Use ULP0 naming instead of slow clock
  ARM: hisi: handle of_iomap and fix missing of_node_put
  ARM: hisi: check of_iomap and fix missing of_node_put
  ARM: hisi: fix error handling and missing of_node_put
  ARM: mx5: Set the DBGEN bit in ARM_GPC register
  ARM: imx51: Configure M4IF to avoid visual artifacts
  ARM: imx: call imx6sx_cpuidle_init() conditionally for 6sll
  ARM: imx: fix i.MX6SLL build
  ...
2018-08-23 13:44:43 -07:00
Krzysztof Kozlowski e5cda42c16 ARM: exynos: Define EINT_WAKEUP_MASK registers for S5Pv210 and Exynos5433
S5Pv210 and Exynos5433/Exynos7 have different address of
EINT_WAKEUP_MASK register.  Rename existing S5P_EINT_WAKEUP_MASK to
avoid confusion and add new ones.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Sylwester Nawrocki <snawrocki@kernel.org>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
2018-07-24 21:50:39 +02:00
Krzysztof Kozlowski cd4806911c ARM: exynos: Clear global variable on init error path
For most of Exynos SoCs, Power Management Unit (PMU) address space is
mapped into global variable 'pmu_base_addr' very early when initializing
PMU interrupt controller.  A lot of other machine code depends on it so
when doing iounmap() on this address, clear the global as well to avoid
usage of invalid value (pointing to unmapped memory region).

Properly mapped PMU address space is a requirement for all other machine
code so this fix is purely theoretical.  Boot will fail immediately in
many other places after following this error path.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-07-24 18:52:14 +02:00
Krzysztof Kozlowski e89549a596 ARM: exynos: Remove outdated maintainer information
The current maintainers are specified in MAINTAINERS file, so remove
in-sources information with outdated e-mail address (Thomas Abraham's
email does not work, Kukjin Kim uses @kernel.org).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-07-24 18:50:46 +02:00
Pankaj Dubey 9ad9a2183b ARM: exynos: Remove unused soc_is_exynos{4,5}
As no more user of soc_is_exynos{4,5} we can safely remove them.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-05-13 14:07:03 +02:00
Pankaj Dubey 3c33710b45 ARM: exynos: Remove static mapping of SCU SFR
Lets remove static mapping of SCU SFR mainly used in CORTEX-A9 SoC based
boards. Instead use mapping from device tree node of SCU.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
[mszyprow: rebased, added fallback to scu_a9_get_base() when no SCU DT
 node is available, removed compatibility break warning, fixed non-SMP
 build, keep SCU base mapping to avoid issues with calls from CPUidle]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-05-13 14:06:55 +02:00
Bartlomiej Zolnierkiewicz 66df44b258 ARM: exynos: no need to select ARCH_HAS_BANDGAP any longer
This is not needed since commit fcbb1e02ee ("drivers: thermal:
Remove ARCH_HAS_BANDGAP dependency for samsung") from 2014.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-05-03 18:19:59 +02:00
Krzysztof Kozlowski c5deb59808 ARM: exynos: Remove support for Exynos5440
The Exynos5440 is not actively developed, there are no development
boards available and probably there are no real products with it.
Remove wide-tree support for Exynos5440.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-05-02 18:54:49 +02:00
Marek Szyprowski ae35c48356 ARM: EXYNOS: Simplify code in coupled CPU idle hot path
exynos_enter_aftr() is called by coupled CPU idle code every time CPU
enters idle state, what can be considered as a hot path. Replace
of_machine_is_compatible() call with a simple SoC revision check.

of_machine_is_compatible() function performs a dozen of string comparisons
during the full device tree walk, while soc_is_exynos4412() is a simple
integer check on SoC revision variable.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-03-21 18:51:39 +01:00
Marek Szyprowski a7480dbcf9 ARM: EXYNOS: Fix coupled CPU idle freeze on Exynos4210
Since commit 04c8b0f82c ("irqchip/gic: Make locking a BL_SWITCHER only
feature") coupled CPU idle freezes from time to time on Exynos4210. Later
commit 313c8c16ee ("PM / CPU: replace raw_notifier with atomic_notifier")
changed the context in which the CPU idle code is executed, what results
in fully reproducible freeze all the time. However, almost the same coupled
CPU idle code works fine on Exynos3250 regardless of the changes made in
the mentioned commits.

It turned out that the IPI call used on Exynos4210 is conflicting with the
change done in the first mentioned commit in GIC. Fix this by using the
same code path as for Exynos3250, instead of the IPI call for
synchronization with second CPU core, call dsb_sev() directly.

Tested on Exynos4210-based Trats and Origen boards.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: <stable@vger.kernel.org> # v4.13+
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-03-21 18:50:02 +01:00
Simon Shields cc14b2b1f0 ARM: EXYNOS: Extend cpuidle support to Midas boards
Exynos4412 can only use cpuidle when running under a compatible
bootloader/firmware. The Midas family of boards, including Trats2,
have such a firmware, so allow them to use cpuidle.

Leave the Trats2 check there in order to preserve the ABI.

Signed-off-by: Simon Shields <simon@lineageos.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-02-19 17:55:49 +01:00
Krzysztof Kozlowski 347863d47a ARM: EXYNOS: Add SPDX license identifiers
Replace GPL license statements with SPDX license identifiers (GPL-2.0
and GPL-2.0+).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-01-03 18:36:22 +01:00
Marek Szyprowski 9e43eca3c8 ARM: EXYNOS: Remove Exynos4212 related dead code
Support for Exynos4212 SoCs has been removed by commit bca9085e0a ("ARM:
dts: exynos: remove Exynos4212 support (dead code)"), so there is no need
to keep remaining dead code related to this SoC version.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-10-08 13:52:09 +02:00
Linus Torvalds 8fac2f96ab Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
 "Low priority fixes and updates for ARM:

   - add some missing includes

   - efficiency improvements in system call entry code when tracing is
     enabled

   - ensure ARMv6+ is always built as EABI

   - export save_stack_trace_tsk()

   - fix fatal signal handling during mm fault

   - build translation table base address register from scratch

   - appropriately align the .data section to a word boundary where we
     rely on that data being word aligned"

* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8691/1: Export save_stack_trace_tsk()
  ARM: 8692/1: mm: abort uaccess retries upon fatal signal
  ARM: 8690/1: lpae: build TTB control register value from scratch in v7_ttb_setup
  ARM: align .data section
  ARM: always enable AEABI for ARMv6+
  ARM: avoid saving and restoring registers unnecessarily
  ARM: move PC value into r9
  ARM: obtain thread info structure later
  ARM: use aliases for registers in entry-common
  ARM: 8689/1: scu: add missing errno include
  ARM: 8688/1: pm: add missing types include
2017-09-12 06:10:44 -07:00
Rob Herring a8e65e06ec ARM: Convert to using %pOF instead of full_name
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-08-16 22:25:30 +02:00
Russell King 1abd350237 ARM: align .data section
Robert Jarzmik reports that his PXA25x system fails to boot with 4.12,
failing at __flush_whole_cache in arch/arm/mm/proc-xscale.S:215:

   0xc0019e20 <+0>:     ldr     r1, [pc, #788]
   0xc0019e24 <+4>:     ldr     r0, [r1]	<== here

with r1 containing 0xc06f82cd, which is the address of "clean_addr".
Examination of the System.map shows:

c06f22c8 D user_pmd_table
c06f22cc d __warned.19178
c06f22cd d clean_addr

indicating that a .data.unlikely section has appeared just before the
.data section from proc-xscale.S.  According to objdump -h, it appears
that our assembly files default their .data alignment to 2**0, which
is bad news if the preceding .data section size is not power-of-2
aligned at link time.

Add the appropriate .align directives to all assembly files in arch/arm
that are missing them where we require an appropriate alignment.

Reported-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-08-14 16:22:55 +01:00
Linus Torvalds d4f4cf77b3 Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:

 - nommu updates from Afzal Mohammed cleaning up the vectors support

 - allow DMA memory "mapping" for nommu Benjamin Gaignard

 - fixing a correctness issue with R_ARM_PREL31 relocations in the
   module linker

 - add strlen() prototype for the decompressor

 - support for DEBUG_VIRTUAL from Florian Fainelli

 - adjusting memory bounds after memory reservations have been
   registered

 - unipher cache handling updates from Masahiro Yamada

 - initrd and Thumb Kconfig cleanups

* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (23 commits)
  ARM: mm: round the initrd reservation to page boundaries
  ARM: mm: clean up initrd initialisation
  ARM: mm: move initrd init code out of arm_memblock_init()
  ARM: 8655/1: improve NOMMU definition of pgprot_*()
  ARM: 8654/1: decompressor: add strlen prototype
  ARM: 8652/1: cache-uniphier: clean up active way setup code
  ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h>
  ARM: 8650/1: module: handle negative R_ARM_PREL31 addends correctly
  ARM: 8649/2: nommu: remove Hivecs configuration is asm
  ARM: 8648/2: nommu: display vectors base
  ARM: 8647/2: nommu: dynamic exception base address setting
  ARM: 8646/1: mmu: decouple VECTORS_BASE from Kconfig
  ARM: 8644/1: Reduce "CPU: shutdown" message to debug level
  ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol
  ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL
  ARM: 8639/1: Define KERNEL_START and KERNEL_END
  ARM: 8638/1: mtd: lart: Rename partition defines to be prefixed with PART_
  ARM: 8637/1: Adjust memory boundaries after reservations
  ARM: 8636/1: Cleanup sanity_check_meminfo
  ARM: add CPU_THUMB_CAPABLE to indicate possible Thumb support
  ...
2017-02-28 11:50:53 -08:00
Florian Fainelli 64fc2a947a ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol
All low-level PM/SMP code using virt_to_phys() should actually use
__pa_symbol() against kernel symbols. Update code where relevant to move
away from virt_to_phys().

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:06:10 +00:00
Linus Torvalds b2e3c4319d ARM: SoC driver updates
Driver updates for ARM SoCs.
 
 A handful of driver changes this time around. The larger changes are:
 
  - Reset drivers for hi3660 and zx2967
  - AHCI driver for Davinci, acked by Tejun and brought in here due to
    platform dependencies
  - Cleanups of atmel-ebi (External Bus Interface)
  - Tweaks for Rockchip GRF (General Register File) usage (kitchensink misc
    register range on the SoCs)
  - PM domains changes for support of two new ZTE SoCs (zx296718 and zx2967)
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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 Arnd Bergmann:
 "Driver updates for ARM SoCs.

  A handful of driver changes this time around. The larger changes are:

   - Reset drivers for hi3660 and zx2967

   - AHCI driver for Davinci, acked by Tejun and brought in here due to
     platform dependencies

   - Cleanups of atmel-ebi (External Bus Interface)

   - Tweaks for Rockchip GRF (General Register File) usage (kitchensink
     misc register range on the SoCs)

   - PM domains changes for support of two new ZTE SoCs (zx296718 and
     zx2967)"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits)
  soc: samsung: pmu: Add register defines for pad retention control
  reset: make zx2967 explicitly non-modular
  reset: core: fix reset_control_put
  soc: samsung: pm_domains: Read domain name from the new label property
  soc: samsung: pm_domains: Remove message about failed memory allocation
  soc: samsung: pm_domains: Remove unused name field
  soc: samsung: pm_domains: Use full names in subdomains registration log
  sata: ahci-da850: un-hardcode the MPY bits
  sata: ahci-da850: add a workaround for controller instability
  sata: ahci: export ahci_do_hardreset() locally
  sata: ahci-da850: implement a workaround for the softreset quirk
  sata: ahci-da850: add device tree match table
  sata: ahci-da850: get the sata clock using a connection id
  soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register
  memory: atmel-ebi: Enable the SMC clock if specified
  soc: samsung: pmu: Remove unused and duplicated defines
  memory: atmel-ebi: Properly handle multiple reference to the same CS
  memory: atmel-ebi: Fix the test to enable generic SMC logic
  soc: samsung: pm_domains: Add new Exynos5433 compatible
  soc: samsung: pmu: Add dummy support for Exynos5433 SoC
  ...
2017-02-23 15:57:04 -08:00
Linus Torvalds 6ae52c65e0 ARM: SoC platform updates
In the SoC branch we normally collect classic arch/arm/mach-* contents, i.e.
 C code changes for SoC platforms. This release cycle the diffstat is quite
 nice, in that we're removing 3x the amount of code that's being added.
 
 The main reason for this is that there's a removal of camera drivers for
 Freescale i.MX chips (driver was removed so the device registration isn't
 needed any more). There's also removal of display initialization code for OMAP
 that is no longer needed.
 
 The rest are mostly minor tweaks and cleanups; constification on Samsung
 platforms, cleanup of ux500 platform data, purge of other unused platform
 data/device seutp on i.MX and other good stuff.
 
 New SoC support this cycle is for two Allwinner platforms, H2+ and V3s.
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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 Arnd Bergmann:
 "In the SoC branch we normally collect classic arch/arm/mach-*
  contents, i.e. C code changes for SoC platforms. This release cycle
  the diffstat is quite nice, in that we're removing 3x the amount of
  code that's being added.

  The main reason for this is that there's a removal of camera drivers
  for Freescale i.MX chips (driver was removed so the device
  registration isn't needed any more). There's also removal of display
  initialization code for OMAP that is no longer needed.

  The rest are mostly minor tweaks and cleanups; constification on
  Samsung platforms, cleanup of ux500 platform data, purge of other
  unused platform data/device seutp on i.MX and other good stuff.

  New SoC support this cycle is for two Allwinner platforms, H2+ and
  V3s"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (55 commits)
  ARM: ux500: remove deleted file from Makefile
  ARM: ep93xx: Disable TS-72xx watchdog before uncompressing
  ARM: ux500: cut some platform data
  MAINTAINERS: Update for the current location of the bcm2835 tree.
  ARM: davinci: remove BUG_ON() from da850_register_sata()
  ARM: davinci: da850: model the SATA refclk
  ARM: davinci: da850: add con_id for the SATA clock
  ARM: davinci: da8xx-dt: add OF_DEV_AUXDATA entry for SATA
  arm: mvebu: support for SMP on 98DX3336 SoC
  dt-bindings: video: exynos7-decon: Remove obsolete samsung,power-domain property
  soc: dove: constify reset_control_ops structures
  ARM: mv78xx0: fix possible PCI buffer overflow
  MAINTAINERS: transfer maintainership for the EZX platform
  ARM: shmobile: rcar-gen2: Add more register documentation
  ARM: tegra: paz00: Fix __initdata placement
  ARM: OMAP: clock: Remove unused mpurate cmdline option
  ARM: davinci: add skeleton for pdata-quirks
  arm: sunxi: add support for V3s SoC
  ARM: OMAP2+: omap_hwmod: Add support for earlycon
  arm: hisi: drop extern hip01_cpu_die
  ...
2017-02-23 15:33:54 -08:00
Linus Walleij 7f36f5d11c Linux 4.10-rc6
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Merge tag 'v4.10-rc6' into devel

Linux 4.10-rc6

Resolved conflicts in:
	drivers/pinctrl/pinctrl-amd.c
	drivers/pinctrl/samsung/pinctrl-exynos.c
2017-01-30 14:39:20 +01:00
Olof Johansson 1564dd1d2f Samsung mach/soc update for v4.11, second round:
1. Remove mach code for Exynos4415 as a continuation of removal
    of this SoC.
 2. Remove obsolete property from the bindings documentation.
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Merge tag 'samsung-soc-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/soc

Samsung mach/soc update for v4.11, second round:
1. Remove mach code for Exynos4415 as a continuation of removal
   of this SoC.
2. Remove obsolete property from the bindings documentation.

* tag 'samsung-soc-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  dt-bindings: video: exynos7-decon: Remove obsolete samsung,power-domain property
  ARM: EXYNOS: Remove Exynos4415 arch code (SoC not supported anymore)

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-01-29 21:23:52 -08:00
Olof Johansson 1096ffd75a Continuation of improvements for Exynos PM drivers for v4.11:
1. Add support for Exynos5433 to Power Management Unit (PMU) and Power
    Domains drivers.
 2. Cleanups of duplicated and unused defines.
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Merge tag 'samsung-drivers-soc-pmu-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

Continuation of improvements for Exynos PM drivers for v4.11:
1. Add support for Exynos5433 to Power Management Unit (PMU) and Power
   Domains drivers.
2. Cleanups of duplicated and unused defines.

* tag 'samsung-drivers-soc-pmu-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register
  soc: samsung: pmu: Remove unused and duplicated defines
  soc: samsung: pm_domains: Add new Exynos5433 compatible
  soc: samsung: pmu: Add dummy support for Exynos5433 SoC

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-01-29 21:18:44 -08:00
Krzysztof Kozlowski ee55ae6194 soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register
The register ARM_L2_OPTION (0x2608 in Exynos4 and Exynos5 PMU) was
defined twice.  Both names were used in the Exynos542x code.  Simplify
this.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-01-27 11:32:31 +02:00
Marek Szyprowski 07731019c5 pinctrl: samsung: Move retention control from mach-exynos to the pinctrl driver
This patch moves pad retention control from PMU driver to Exynos pin
controller driver. This helps to avoid possible ordering and logical
dependencies between machine, PMU and pin control code. Till now it
worked fine only because sys_ops for PMU and pin controller were called
in registration order.
This is also a preparation for adding new features to Exynos pin
controller driver, like runtime power management and suspending
individual pin controllers, which might be a part of some power domain.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26 16:56:57 +01:00
Krzysztof Kozlowski 22dfab102c ARM: EXYNOS: Remove Exynos4415 arch code (SoC not supported anymore)
Support for Exynos4415 is going away because there are no internal nor
external users.

Since commit 46dcf0ff0d ("ARM: dts: exynos: Remove exynos4415.dtsi"),
the platform cannot be instantiated so remove also the mach code.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Kukjin Kim <kgene@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
2017-01-18 20:48:00 +02:00
Olof Johansson d2d08aba62 Samsung mach/soc update for v4.11. Mostly cleanups:
1. Removal of unused platform data in S3C24XX and S3C64xx as follow up of
    conversion to new DMA channel request API.
 2. Adding const and __ro_after_init to various data in Samsung platforms.
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Merge tag 'samsung-soc-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/soc

Samsung mach/soc update for v4.11. Mostly cleanups:
1. Removal of unused platform data in S3C24XX and S3C64xx as follow up of
   conversion to new DMA channel request API.
2. Adding const and __ro_after_init to various data in Samsung platforms.

* tag 'samsung-soc-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: s3c64xx: Constify wake_irqs
  ARM: s3c24xx: Constify wake_irqs
  ARM: SAMSUNG: Constify array of wake irqs passed to samsung_sync_wakemask
  ARM: s3c64xx: Annotate external clock frequencies __ro_after_init
  ARM: s3c24xx: Constify few integer tables
  ARM: EXYNOS: Annotate iomem and pm_data pointers __ro_after_init
  ARM: EXYNOS: Constify list of retention registers
  ARM: s3c24xx: Drop unused struct s3c_audio_pdata entries
  ARM: s3c64xx: Drop initialization of unused struct s3c_audio_pdata fields

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-01-16 22:28:56 -08:00