Commit Graph

45759 Commits

Author SHA1 Message Date
Vivien Didelot
f81ec90fe9 net: dsa: mv88e6xxx: factorize the switch driver
Now that all drivers support the same set of functions and the same
setup code, drop every model-specific DSA switch driver and replace them
with a common mv88e6xxx driver.

This merges the info tables into one, removes the function exports, the
model-specific files, and update the defconfigs.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-09 14:26:13 -04:00
Arnd Bergmann
ff628a4dbd Device tree auxdata handling fix that allows a match based on the
compatible string if no exact match based on the IO address is found.
 
 This leaves out the need to patch auxdata for each driver when adding
 new SoCs. And it also reprotedly fixes the issue of passing auxdata
 to a child if the parent instantiates the child from DT as discussed
 in the "[PATCH] of/platform: Allow secondary compatible match in
 of_dev_lookup" mailing list thread.
 
 As a minimal use case, let's also convert omap pinctrl auxdatato
 use a generic match.
 
 There is no need to get this in to the v4.6-rc cycle and it can wait
 for v4.7 merge window. Note that these changes have now been sitting
 in Linux next for about two weeks so far as I wanted to make sure no
 new issues are popping up.
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Merge tag 'omap-for-v4.7/auxdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

Merge "non urgent auxdata fix for v4.7 merge window" from Tony Lindgren:

Device tree auxdata handling fix that allows a match based on the
compatible string if no exact match based on the IO address is found.

This leaves out the need to patch auxdata for each driver when adding
new SoCs. And it also reprotedly fixes the issue of passing auxdata
to a child if the parent instantiates the child from DT as discussed
in the "[PATCH] of/platform: Allow secondary compatible match in
of_dev_lookup" mailing list thread.

As a minimal use case, let's also convert omap pinctrl auxdatato
use a generic match.

There is no need to get this in to the v4.6-rc cycle and it can wait
for v4.7 merge window. Note that these changes have now been sitting
in Linux next for about two weeks so far as I wanted to make sure no
new issues are popping up.

* tag 'omap-for-v4.7/auxdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Simplify auxdata by using the generic match
  of/platform: Allow secondary compatible match in of_dev_lookup
2016-05-09 16:42:14 +02:00
Arnd Bergmann
11c3aead82 Legacy booting vs device tree booting fixes for omaps for
v4.7 merge window. These are not considered urgent fixes enough
 for the v4.6-rc cycle, but we need them in v4.7 in order to drop
 the last remaining board-*.c files for omap3 for v4.8 merge window.
 
 On Nokia N900, we need to pass the MMC slot names for the legacy
 user space to work. Let's do that using auxdata as the driver is
 setting up things already with the pdata for legacy booting. Then
 we can later on discuss if we may want to have some generic binding
 describing where the MMC slots are on the device.
 
 N900 also has had the ir-rx51 device driver unusable with multiarch
 for a long time. Let's pass the dmtimer data in pdata for the driver
 to get it going again. Then once things are working, we can eventually
 change the driver to use just hrtimer and PWM framework. The driver
 changes will be queued separately.
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Merge tag 'omap-for-v4.7/legacy-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

Merge "omap legacy boot vs dt boot fixes for v4.7 merge window"
from Tony Lindgren:

Legacy booting vs device tree booting fixes for omaps for
v4.7 merge window. These are not considered urgent fixes enough
for the v4.6-rc cycle, but we need them in v4.7 in order to drop
the last remaining board-*.c files for omap3 for v4.8 merge window.

On Nokia N900, we need to pass the MMC slot names for the legacy
user space to work. Let's do that using auxdata as the driver is
setting up things already with the pdata for legacy booting. Then
we can later on discuss if we may want to have some generic binding
describing where the MMC slots are on the device.

N900 also has had the ir-rx51 device driver unusable with multiarch
for a long time. Let's pass the dmtimer data in pdata for the driver
to get it going again. Then once things are working, we can eventually
change the driver to use just hrtimer and PWM framework. The driver
changes will be queued separately.

* tag 'omap-for-v4.7/legacy-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: n900 needs MMC slot names for legacy user space
  ARM: OMAP2+: Add more functions to pwm pdata for ir-rx51
2016-05-09 16:39:14 +02:00
Arnd Bergmann
ea46a1f8d3 Samsung DTS non-critical fixes for v4.7:
1. Fix s5p-mfc driver probe on Exynos542x Peach boards (need to provide MFC
    memory banks). On these boards this was broken for long time but
    apparently no one enabled this driver till now.
 2. Fix creation of debugfs entries for one regulator on Exynos4210
    Trats board.
 3. Fix probing of max8997 MFD driver (and its children) because
    of missing interrupt. Actually the current version of the driver probes
    (just without interrupts) but after switching to regmap and regmap-irq,
    the interrupt will be mandatory.
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Merge tag 'samsung-fixes-non-critical-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/fixes-non-critical

Merge "Samsung DTS non-critical fixes for v4.7":

1. Fix s5p-mfc driver probe on Exynos542x Peach boards (need to provide MFC
   memory banks). On these boards this was broken for long time but
   apparently no one enabled this driver till now.
2. Fix creation of debugfs entries for one regulator on Exynos4210
   Trats board.
3. Fix probing of max8997 MFD driver (and its children) because
   of missing interrupt. Actually the current version of the driver probes
   (just without interrupts) but after switching to regmap and regmap-irq,
   the interrupt will be mandatory.

* tag 'samsung-fixes-non-critical-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
  ARM: dts: exynos: Fix regulator name to avoid forbidden character on exynos4210-trats
  ARM: dts: exynos: Add MFC memory banks for Peach boards
  ARM: EXYNOS: Properly skip unitialized parent clock in power domain on
2016-05-09 16:38:04 +02:00
Arnd Bergmann
b54891be1a Add mt2701 support
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Merge tag 'v4.6-next-kconfig' of https://github.com/mbgg/linux-mediatek into next/soc

Merge "ARM: mediatek: kconfig updates for v4.7" from Matthias Brugger:

Add mt2701 support

* tag 'v4.6-next-kconfig' of https://github.com/mbgg/linux-mediatek:
  ARM: mediatek: Add MT2701 config options for mediatek SoCs.
2016-05-09 16:31:16 +02:00
Arnd Bergmann
182e0842b0 - re-organize pmic wrapper code for easier and cleaner addiont of new SoCs and pmic wrappers
- add support for pmic wrapper mt6323
 - add support for SoC mt2701
 - enable gpt6 arch timer on mt7623
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Merge tag 'v4.6-next-soc' of https://github.com/mbgg/linux-mediatek into next/drivers

Merge "ARM: mediatek soc updates for v4.7" from Matthias Brugger:

- re-organize pmic wrapper code for easier and cleaner addiont of new SoCs and pmic wrappers
- add support for pmic wrapper mt6323
- add support for SoC mt2701
- enable gpt6 arch timer on mt7623

* tag 'v4.6-next-soc' of https://github.com/mbgg/linux-mediatek:
  ARM: mediatek: enable gpt6 on boot up to make arch timer work on mt7623
  soc: mediatek: PMIC wrap: add MT2701/7623 support
  soc: mediatek: PMIC wrap: add mt6323 slave support
  soc: mediatek: PMIC wrap: add a slave specific struct
  soc: mediatek: PMIC wrap: remove pwrap_is_mt8135() and pwrap_is_mt8173()
  soc: mediatek: PMIC wrap: move wdt_src into the pmic_wrapper_type struct
  soc: mediatek: PMIC wrap: SPI_WRITE needs a different bitmask for MT2701/7623
  soc: mediatek: PMIC wrap: WRAP_INT_EN needs a different bitmask for MT2701/7623
  soc: mediatek: PMIC wrap: split SoC specific init into callback
  soc: mediatek: PMIC wrap: add wrapper callbacks for init_reg_clock
  soc: mediatek: PMIC wrap: don't duplicate the wrapper data
2016-05-09 16:29:36 +02:00
Arnd Bergmann
0683e598a1 ARM: tegra: Enable the XUSB controller
These changes add support for the XUSB controller on Tegra124. It is an
 XHCI compatible controller that replaces the existing EHCI controllers.
 Support is enabled on Venice2, Jetson TK1 and Nyan-based Chromebooks.
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Merge tag 'tegra-for-4.7-xusb-no-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/late

Merge "ARM: tegra: Enable the XUSB controller" from Thierry Reding:

These changes add support for the XUSB controller on Tegra124. It is an
XHCI compatible controller that replaces the existing EHCI controllers.
Support is enabled on Venice2, Jetson TK1 and Nyan-based Chromebooks.

* tag 'tegra-for-4.7-xusb-no-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: tegra: Enable XUSB on Nyan
  ARM: tegra: Enable XUSB on Jetson TK1
  ARM: tegra: Enable XUSB on Venice2
  ARM: tegra: Add Tegra124 XUSB controller
  ARM: tegra: Move Tegra124 to the new XUSB pad controller binding
2016-05-09 16:26:08 +02:00
Arnd Bergmann
abb2c53a55 aspeed arch tag for 4.7
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Merge tag 'aspeed-for-4.7-arch' of https://github.com/shenki/linux into next/soc

Merge "aspeed arch tag for 4.7" from Joel Stanley <joel@jms.id.au>:

This is the initial pull request for the Aspeed BMC SoCs.

I put 4.7 in the subject for this and the subsequent requests but if it's a bit
late in the cycle then I understand.

Following review I got rid of the board file by pushing the functionality out
to a watchdog and clock driver, so it's just the Kconfig bits. I've also added
myself to maintainers for the Aspeed arch and drivers as I intend on looking
after them.

* tag 'aspeed-for-4.7-arch' of https://github.com/shenki/linux:
  arm: Add Aspeed machine
2016-05-09 16:13:53 +02:00
Arnd Bergmann
121711bbe4 The i.MX SoC updates for 4.7:
- Allow TWD to be used on UP kernel, as the PREEMPT-RT and cyclictest
    shows that TWD has a slightly better performance than i.MX timer.
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Merge tag 'imx-soc-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

Merge "The i.MX SoC updates for 4.7" from Shawn Guo":

 - Allow TWD to be used on UP kernel, as the PREEMPT-RT and cyclictest
   shows that TWD has a slightly better performance than i.MX timer.

* tag 'imx-soc-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: always use TWD on IMX6Q
2016-05-09 16:08:46 +02:00
Arnd Bergmann
8946bdf7c7 mvebu soc for 4.7
- Clock framework cleanup with the "Remove CLK_IS_ROOT" series
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Merge tag 'mvebu-soc-4.7-1' of git://git.infradead.org/linux-mvebu into next/soc

Merge "mvebu soc for 4.7" from Gregory CLEMENT:

- Clock framework cleanup with the "Remove CLK_IS_ROOT" series

* tag 'mvebu-soc-4.7-1' of git://git.infradead.org/linux-mvebu:
  ARM: dove: Remove CLK_IS_ROOT
  ARM: orion5x: Remove CLK_IS_ROOT
  ARM: mv78xx0: Remove CLK_IS_ROOT
2016-05-09 16:00:18 +02:00
Arnd Bergmann
eb07e08d54 These patches provide ability to add non-PSC
clocks to DaVinci clock framwork and are
 required to support USB PHY clock setting from
 USB PHY driver.
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Merge tag 'davinci-for-v4.7/soc-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/soc

Merge "DaVinci SoC updates for v4.7 (part 2)" from Sekhar Nori:

These patches provide ability to add non-PSC
clocks to DaVinci clock framwork and are
required to support USB PHY clock setting from
USB PHY driver.

* tag 'davinci-for-v4.7/soc-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: davinci: da850: use clk->set_parent for async3
  ARM: davinci: Move clock init after ioremap.
2016-05-09 15:57:27 +02:00
Arnd Bergmann
b65b98d9ac NXP LPC32xx mach updates for v4.7
This includes a few nonfunctional clean-ups for NXP LPC32xx:
 * removed leftover from restart code migration to a watchdog driver
 * removed dead code leftovers from migration to CCF driver
 * fix double const qualifier
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Merge tag 'lpc32xx-soc-4.7' of git://github.com/vzapolskiy/linux-lpc32xx into next/soc

Merge "NXP LPC32xx mach updates for v4.7" from Vladimir Zapolskiy:

This includes a few nonfunctional clean-ups for NXP LPC32xx:
* removed leftover from restart code migration to a watchdog driver
* removed dead code leftovers from migration to CCF driver
* fix double const qualifier

* tag 'lpc32xx-soc-4.7' of git://github.com/vzapolskiy/linux-lpc32xx:
  ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup
  ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers
  ARM: lpc32xx: remove reboot header file
2016-05-09 15:41:24 +02:00
Robin Murphy
53c92d7933 iommu: of: enforce const-ness of struct iommu_ops
As a set of driver-provided callbacks and static data, there is no
compelling reason for struct iommu_ops to be mutable in core code, so
enforce const-ness throughout.

Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-05-09 15:33:29 +02:00
Joel Stanley
d0bc3483da arm/configs: Add Aspeed defconfig
Signed-off-by: Joel Stanley <joel@jms.id.au>
2016-05-09 19:12:30 +09:30
Joel Stanley
0d0f88969d arm/configs/multi_v5: Add Aspeed ast2400
This adds the Aspeed ast2400 BMC SoC to the build.

The SoC has six UARTs so we need to enable the appropriate options for
SERIAL_8250

Signed-off-by: Joel Stanley <joel@jms.id.au>
2016-05-09 19:08:05 +09:30
Joel Stanley
0244062265 arm/dst: Add Aspeed ast2500 device tree
This adds a common device tree for all fifth generation Aspeed systems,
and a board specific device tree for the ast2500 evaluation board.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2016-05-09 17:41:58 +09:30
Joel Stanley
d44a1138cd arm/dts: Add Aspeed ast2400 device tree
A common device tree for all forth gen/ast2400 systems and a board
specific dts for the Palmetto OpenPower developemnt machine which was
used for testing.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2016-05-09 17:41:58 +09:30
Joel Stanley
8c2ed9bcfb arm: Add Aspeed machine
Aspeed devices are a common Baseboard Management Controller (BMC)
system on chip containing an ARM9 or ARM11 core, off-chip DDR RAM and
support for a large number of peripherals.

This patch adds basic support for the ast2400 and ast2500 machines,
capable of booting to a prompt in QEMU (-M palmetto-bmc), on an
Palmetto OpenPower development machine, and on the ast2500 EVB.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2016-05-09 17:41:14 +09:30
Dave Airlie
bafb86f5bc Linux 4.6-rc7
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Merge tag 'v4.6-rc7' into drm-next

Merge this back as we've built up a fair few conflicts, and I have
some newer trees to pull in.
2016-05-09 13:49:56 +10:00
Priit Laes
068655dc9b ARM: sun7i: dt: Add pll3 and pll7 clocks
Enable pll3 and pll7 clocks that are needed by display clocks.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-05-08 21:09:29 +02:00
Olliver Schinagl
27dd9af6bc ARM: dts: sunxi: Add a olinuxino-lime2-emmc
There are 3 kinds of OLinuXino Lime2 boards.
One without any on board storage, one with NAND storage and one with
eMMC storage. This patch adds the eMMC variant of boards.

eMMC storage is different from a regular SD card in that it is soldered
on the board and cannot be changed. Additionally, it shares pins with
the NAND module and with the second SPI port.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
[Maxime: Removed the change log from the commit log]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-05-08 20:07:55 +02:00
Linus Torvalds
9125aeb3e2 Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "These are a number of updates to fix a few problems found in the ARM
  nommu code over the last couple of years, caused mostly by changes on
  the mmu side"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8573/1: domain: move {set,get}_domain under config guard
  ARM: 8572/1: nommu: change memory reserve for the vectors
  ARM: 8571/1: nommu: fix PMSAv7 setup
2016-05-07 08:27:35 -07:00
Linus Torvalds
35cd3f4563 Merge branch 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "An ahci driver addition and updates to ahci port enable handling for
  some platform devices"

* 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  ata: add AMD Seattle platform driver
  ARM: dts: apq8064: add ahci ports-implemented mask
  ata: ahci-platform: Add ports-implemented DT bindings.
  libahci: save port map for forced port map
2016-05-07 08:13:42 -07:00
Ingo Molnar
35dc9ec107 Merge branch 'linus' into efi/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-05-07 07:00:07 +02:00
Rafael J. Wysocki
dab2e29402 Merge back new device properties material for v4.7. 2016-05-06 22:07:33 +02:00
Marek Szyprowski
330d12764e ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
MAX8997 PMIC requires interrupt and fails probing without it.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: d105f0b121 ("ARM: dts: Add basic dts file for Samsung Trats board")
Cc: <stable@vger.kernel.org>
[k.kozlowski: Write commit message, add CC-stable]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-06 16:01:32 +02:00
Marek Szyprowski
44ad5e1fd1 ARM: dts: exynos: Fix regulator name to avoid forbidden character on exynos4210-trats
The usage of slash character causes failure when creating regulator
debugfs entry.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
[k.kozlowski: Write commit message]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-06 16:01:31 +02:00
Javier Martinez Canillas
7c44e9117f ARM: dts: exynos: Add MFC memory banks for Peach boards
The MFC nodes with the memory regions reserved for memory allocations
are missing in the Exynos5420 Peach Pit and Exynos5800 Peach Pi DTS.

This causes the s5p-mfc driver probe to fail with the following error:

[    4.140647] s5p_mfc_alloc_memdevs:1072: Failed to declare coherent memory for MFC device
[    4.216163] s5p-mfc: probe of 11000000.codec failed with error -12

Add the missing nodes so the driver probes and the {en,de}coder video
nodes are registered correctly:

[    4.096277] s5p-mfc 11000000.codec: decoder registered as /dev/video4
[    4.102282] s5p-mfc 11000000.codec: encoder registered as /dev/video5

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-06 16:00:58 +02:00
Marek Vasut
c047baadb0 ARM: at91: sama5: Update defconfig
Enable CGROUPS support, so we can boot userspace that uses systemd on
top of kernel configured using this defconfig. The systemd userspace
depends on cgroups and without them, it dies in mysterious ways.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-05-06 15:53:04 +02:00
Mike Williams
00bf4f78b5 ARM: dts: at91: sama5d4: add trng node
Add node to support SAMA5D4 hardware random number generator.

Signed-off-by: Mike Williams <mike@mikebwilliams.com>
[nicolas.ferre@atmel.com: reduce the register map size]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-05-06 15:42:53 +02:00
Mike Williams
206d6c5dfc ARM: dts: at91: sama5d3: add trng node
Add node to support SAMA5D3 hardware random number generator.

Signed-off-by: Mike Williams <mike@mikebwilliams.com>
[nicolas.ferre@atmel.com: reduce the register map size]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-05-06 15:41:52 +02:00
Mike Williams
02eb8d6827 ARM: dts: at91: sama5d2: add trng node
Add node to support SAMA5D2 hardware random number generator.

Signed-off-by: Mike Williams <mike@mikebwilliams.com>
[nicolas.ferre@atmel.com: reduce the register map size]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-05-06 15:35:28 +02:00
Nicolas Ferre
0e230593b8 ARM: dts: at91: at91sam9g45 family: reduce the trng register map size
No need to map 0x4000 bytes for the TRNG device: reduce it to 0x100.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-05-06 15:35:00 +02:00
Linus Torvalds
9caa7e7848 Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
 "14 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  byteswap: try to avoid __builtin_constant_p gcc bug
  lib/stackdepot: avoid to return 0 handle
  mm: fix kcompactd hang during memory offlining
  modpost: fix module autoloading for OF devices with generic compatible property
  proc: prevent accessing /proc/<PID>/environ until it's ready
  mm/zswap: provide unique zpool name
  mm: thp: kvm: fix memory corruption in KVM with THP enabled
  MAINTAINERS: fix Rajendra Nayak's address
  mm, cma: prevent nr_isolated_* counters from going negative
  mm: update min_free_kbytes from khugepaged after core initialization
  huge pagecache: mmap_sem is unlocked when truncation splits pmd
  rapidio/mport_cdev: fix uapi type definitions
  mm: memcontrol: let v2 cgroups follow changes in system swappiness
  mm: thp: correct split_huge_pages file permission
2016-05-05 20:48:35 -07:00
Andrea Arcangeli
127393fbe5 mm: thp: kvm: fix memory corruption in KVM with THP enabled
After the THP refcounting change, obtaining a compound pages from
get_user_pages() no longer allows us to assume the entire compound page
is immediately mappable from a secondary MMU.

A secondary MMU doesn't want to call get_user_pages() more than once for
each compound page, in order to know if it can map the whole compound
page.  So a secondary MMU needs to know from a single get_user_pages()
invocation when it can map immediately the entire compound page to avoid
a flood of unnecessary secondary MMU faults and spurious
atomic_inc()/atomic_dec() (pages don't have to be pinned by MMU notifier
users).

Ideally instead of the page->_mapcount < 1 check, get_user_pages()
should return the granularity of the "page" mapping in the "mm" passed
to get_user_pages().  However it's non trivial change to pass the "pmd"
status belonging to the "mm" walked by get_user_pages up the stack (up
to the caller of get_user_pages).  So the fix just checks if there is
not a single pte mapping on the page returned by get_user_pages, and in
turn if the caller can assume that the whole compound page is mapped in
the current "mm" (in a pmd_trans_huge()).  In such case the entire
compound page is safe to map into the secondary MMU without additional
get_user_pages() calls on the surrounding tail/head pages.  In addition
of being faster, not having to run other get_user_pages() calls also
reduces the memory footprint of the secondary MMU fault in case the pmd
split happened as result of memory pressure.

Without this fix after a MADV_DONTNEED (like invoked by QEMU during
postcopy live migration or balloning) or after generic swapping (with a
failure in split_huge_page() that would only result in pmd splitting and
not a physical page split), KVM would map the whole compound page into
the shadow pagetables, despite regular faults or userfaults (like
UFFDIO_COPY) may map regular pages into the primary MMU as result of the
pte faults, leading to the guest mode and userland mode going out of
sync and not working on the same memory at all times.

Any other secondary MMU notifier manager (KVM is just one of the many
MMU notifier users) will need the same information if it doesn't want to
run a flood of get_user_pages_fast and it can support multiple
granularity in the secondary MMU mappings, so I think it is justified to
be exposed not just to KVM.

The other option would be to move transparent_hugepage_adjust to
mm/huge_memory.c but that currently has all kind of KVM data structures
in it, so it's definitely not a cut-and-paste work, so I couldn't do a
fix as cleaner as this one for 4.6.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: "Li, Liang Z" <liang.z.li@intel.com>
Cc: Amit Shah <amit.shah@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-05 17:38:53 -07:00
Linus Torvalds
c4781a8df9 Here are a couple last-minute fixes for ARM SoCs. Most of them
are for the OMAP platforms, quoting Tony Lindgren:
 
     Fixes for omaps for v4.6-rc cycle. All dts fixes, mostly
     affecting voltages and pinctrl for various device drivers:
 
     - Regulator minimum voltage fixes for omap5
     - ISP syscon register offset fix for omap3
     - Fix regulator initial modes for n900
     - Fix omap5 pinctrl wkup instance size
 
 The rest are all for different platforms:
 
 - Allwinner:
    Remove incorrect constraints from a dcdc1 regulator
 
 - Alltera SoCFPGA:
   Fix compilation in thumb2 mode
 
 - Samsung exynos:
   Fix a potential oops in the pm-domain error handling
 
 - Davinci:
   Avoid a link error if NVMEM is disabled
 
 - Renesas:
   Do not mark an external uart clock as disabled, to allow
   probing the uarts
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Here are a couple last-minute fixes for ARM SoCs.  Most of them are
  for the OMAP platforms, the rest are all for different platforms.

  OMAP:
     All dts fixes, mostly affecting voltages and pinctrl for various
     device drivers:

      - Regulator minimum voltage fixes for omap5
      - ISP syscon register offset fix for omap3
      - Fix regulator initial modes for n900
      - Fix omap5 pinctrl wkup instance size

  Allwinner:
     Remove incorrect constraints from a dcdc1 regulator

  Alltera SoCFPGA:
     Fix compilation in thumb2 mode

  Samsung exynos:
     Fix a potential oops in the pm-domain error handling

  Davinci:
     Avoid a link error if NVMEM is disabled

  Renesas:
     Do not mark an external uart clock as disabled, to allow probing
     the uarts"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: davinci: only use NVMEM when available
  ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel
  ARM: dts: omap5: fix range of permitted wakeup pinmux registers
  ARM: dts: omap3-n900: Specify peripherals LDO regulators initial mode
  ARM: dts: omap3: Fix ISP syscon register offset
  ARM: dts: omap5-cm-t54: fix ldo1_reg and ldo4_reg ranges
  ARM: dts: omap5-board-common: fix ldo1_reg and ldo4_reg ranges
  arm64: dts: r8a7795: Don't disable referenced optional scif clock
  ARM: EXYNOS: Properly skip unitialized parent clock in power domain on
  ARM: dts: sun8i-q8-common: Do not set constraints on dc1sw regulator
2016-05-05 15:31:35 -07:00
Boris Brezillon
e5b2d30e42 mtd: nand: sharpsl: switch to mtd_ooblayout_ops
Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-05-05 23:51:36 +02:00
Masahiro Yamada
6427a840ff ARM: 8567/1: cache-uniphier: activate ways for secondary CPUs
This outer cache allows to control active ways independently for
each CPU, but currently nothing is done for secondary CPUs.  In
other words, all the ways are locked for secondary CPUs by default.
This commit fixes it to fully bring out the performance of this
outer cache.

There would be two possible ways to achieve this:

[1] Each CPU initializes active ways for itself.  This can be done
    via the SSCLPDAWCR register.  This is a banked register, so each
    CPU sees a different instance of the register for its own.

[2] The master CPU initializes active ways for all the CPUs.  This
    is available via SSCDAWCARMR(N) registers, where all instances
    of SSCLPDAWCR are mirrored.  They are mapped at the address
    SSCDAWCARMR + 4 * N, where N is the CPU number.

The outer cache frame work does not support a per-CPU init callback.
So this commit adopts [2]; the master CPU iterates over possible CPUs
setting up SSCDAWCARMR(N) registers.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-05 19:03:39 +01:00
Vladimir Murzin
ec953b70f3 ARM: 8573/1: domain: move {set,get}_domain under config guard
Recursive undefined instrcution falut is seen with R-class taking an
exception. The reson for that is __show_regs() tries to get domain
information, but domains is not available on !MMU cores, like R/M
class.

Fix it by puting {set,get}_domain functions under CONFIG_CPU_CP15_MMU
guard and providing stubs for the case where domains is not supported.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-05 19:03:02 +01:00
Jean-Philippe Brucker
5b526bd925 ARM: 8572/1: nommu: change memory reserve for the vectors
Commit 19accfd3 (ARM: move vector stubs) moved the vector stubs in an
additional page above the base vector one. This change wasn't taken into
account by the nommu memreserve.
This patch ensures that the kernel won't overwrite any vector stub on
nommu.

[changed the MPU side too]

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-05 19:03:02 +01:00
Jean-Philippe Brucker
695665b0c5 ARM: 8571/1: nommu: fix PMSAv7 setup
Commit 1c2f87c (ARM: 8025/1: Get rid of meminfo) broke the support for
MPU on ARMv7-R. This patch adapts the code inside CONFIG_ARM_MPU to use
memblocks appropriately.

MPU initialisation only uses the first memory region, and removes all
subsequent ones. Because looping over all regions that need removal is
inefficient, and memblock_remove already handles memory ranges, we can
flatten the 'for_each_memblock' part.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-05 19:03:01 +01:00
Brad Mouring
204932dfc8 ARM: 8569/1: pl2x0: Add OF control of cache power management
Add ability to override power management bits of 310 controllers
(dynamic clock gating and standby mode) through OF entries. As the
saved register is only applied when working on a supported controller,
it is safe to save the settings.

In order to maintain existing behavior, if the settings are not found
in the DT, the corresponding feature will be enabled.

Signed-off-by: Brad Mouring <brad.mouring@ni.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-05 19:02:10 +01:00
Jisheng Zhang
953efb2b86 ARM: 8568/1: reboot: remove duplicated local_irq_disable()
Once entering machine_halt() and machine_restart(), local_irq_disable()
is called, and local irq is kept disabled, so the local_irq_disable()
at the end of these two functions are not necessary, remove it.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-05 19:02:09 +01:00
Ingo Molnar
1a618c2cfe Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-05-05 10:12:37 +02:00
Ingo Molnar
64b7aad579 Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-05-05 09:01:49 +02:00
Priit Laes
be5f83ffa0 ARM: sun4i: dt: Add pll3 and pll7 clocks
Enable pll3 and pll7 clocks that are needed to drive display clocks.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-05-04 20:31:01 +02:00
Maxime Ripard
8be0fca6dd ARM: sun5i: chip: Enable the TV Encoder
The CHIP has a composite output available muxed with the microphone in the
micro-jack plug.

Enable the composite output in its DTS.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-05-04 20:00:55 +02:00
Maxime Ripard
00e1d6d0c0 ARM: sun5i: r8: Add display blocks to the DTSI
The TCON, tv-encoder and display engine backends and frontends are combined
to create our display pipeline.

Add them to the R8 DTSI. It's supposed to be perfectly compatible with the
A10s and A13, but since we haven't tested it on them yet, it's safer to
just enable it on the R8. Eventually, it should be moved to sun5i.dtsi

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-05-04 20:00:54 +02:00
Maxime Ripard
6b70991043 ARM: sun5i: a13: Add display and TCON clocks
Enable the display and TCON (channel 0 and channel 1) clocks that are going
to be needed to drive the display engine, tcon and TV encoders.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-05-04 19:59:56 +02:00
Linus Walleij
7ba5dd5300 ARM: dts: ux500: configure the accelerometers open drain
Configure the two accelerometers sharing GPIO line 82 as:

- Open drain so that they can share the same interrupt line.

Configure the corresponding interrupt pin:

- Trigger on the falling edge since open drain implies that we
  do not actively drive the line high, but we will actively drive
  it low to generate interrupts and then it moves from high to low
  i.e. a falling edge.

- Pulled up so the line will be biased to high unless an IRQ
  is active on any device on the line, and thus it goes high
  again after the interrupt is deasserted.

Cc: linux-iio@vger.kernel.org
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-05-04 09:33:25 +02:00
Marek Vasut
194521f723 ARM: mx5: dts: Enable USB OTG on M53EVK
Add USB OTG support to M53EVK instead of just USB gadget.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 21:10:11 +08:00
Marcel Ziswiler
2ead04d9d6 ARM: imx_v6_v7_defconfig: add CONFIG_MICREL_PHY
The driver for Micrel PHYs is required for the Apalis iMX6 module
plugged into a Ixora carrier board featuring an on-module Micrel
KSZ9031 Gigabit PHY.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 20:58:07 +08:00
Marcel Ziswiler
154e80e21b ARM: imx_v6_v7_defconfig: add CONFIG_I2C_GPIO
The GPIO-based bitbanging I2C driver is required to make HDMI work on
the Apalis iMX6 module plugged into a Ixora carrier board featuring a
DDC channel to read a screen's EDID being hooked up to regular GPIOs.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 20:58:01 +08:00
Fabio Estevam
bf3251e112 ARM: dts: imx6ul-14x14-evk: Add audio support
imx6ul-14x14-evk has a wm8960 codec connected via SAI2 port.

Add support for it.

Thanks to Petr Kulhavy <brain@jikos.cz> for the hint on initializing
the PLL4 frequency to get a correct MCLK.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 20:49:45 +08:00
Fabio Estevam
c77ebb4534 ARM: dts: imx6qdl: Remove unneeded unit-addresses
The following build warnings are seen when building with 'W=1' option:

Warning (unit_address_vs_reg): Node /soc/aips-bus@02000000/anatop@020c8000/regulator-1p1@110 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /soc/aips-bus@02000000/anatop@020c8000/regulator-3p0@120 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /soc/aips-bus@02000000/anatop@020c8000/regulator-2p5@130 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /soc/aips-bus@02000000/anatop@020c8000/regulator-vddcore@140 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /soc/aips-bus@02000000/anatop@020c8000/regulator-vddpu@140 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /soc/aips-bus@02000000/anatop@020c8000/regulator-vddsoc@140 has a unit name, but no reg property

Fix them by removing the unneeded unit-addresses.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 20:42:34 +08:00
Chanwoo Choi
3f2129fd0d ARM: dts: exynos: Add support of Bus frequency using VDD_INT for exynos5422-odroidxu3
This patch adds the bus device tree nodes for INT (Internal) block
to enable the AMBA bus frequency scaling and add the NoC (Network on Chip)
Probe Device Tree node to measure the bandwidth for AMBA AXI bus.

The WCORE bus bus is parent device in INT block using VDD_INT.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:27:52 +02:00
Chanwoo Choi
b04a62d3ad ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos542x SoC
This patch adds the AMBA bus nodes using VDD_INT for Exynos542x SoC.
Exynos542x has the following AMBA buses to translate data between
DRAM and sub-blocks.

Following list specifies the detailed correlation between sub-block and clock:
- CLK_DOUT_ACLK400_WCORE clock for WCORE's AXI
- CLK_DOUT_ACLK100_NOC for NoC (Network on Chip)'s AXI
- CLK_DOUT_PCLK200_FSYS for FSYS's APB
- CLK_DOUT_ACLK200_FSYS for FSYS's AXI
- CLK_DOUT_ACLK200_FSYS2 for FSYS2's AXI
- CLK_DOUT_ACLK333 for MFC's AXI
- CLK_DOUT_ACLK266 for GEN's AXI
- CLK_DOUT_ACLK66 for PERIC/PERIR's AXI
- CLK_DOUT_ACLK333_G2D for G2D's AXI
- CLK_DOUT_ACLK266_G2D for ACP's AXI
- CLK_DOUT_ACLK300_JPEG for JPEG's AXI
- CLK_DOUT_ACLK166 for JPEG's APB
- CLK_DOUT_ACLK300_DISP1 for FIMD's AXI
- CLK_DOUT_ACLK400_DISP1 for DISP1's AXI
- CLK_DOUT_ACLK300_GSCL for GSCL Scaler's AXI
- CLK_DOUT_ACLK400_MSCL for MSCL's AXI

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:27:20 +02:00
Chanwoo Choi
f018c987dd ARM: dts: exynos: Add NoC Probe dt node for Exynos542x SoC
This patch adds the NoCP (Network on Chip Probe) Device Tree node
to measure the bandwidth of memory and g3d in Exynos542x SoC.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:27:03 +02:00
Chanwoo Choi
4f20aa0eeb ARM: dts: exynos: Add support of bus frequency for exynos4412-trats/odroidu3
This patch adds the bus device tree nodes for both MIF (Memory) and INT
(Internal) block to enable the bus frequency.

The DMC bus is parent device in MIF block using VDD_MIF and the LEFTBUS
bus is parent device in INT block using VDD_INT.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:59 +02:00
Chanwoo Choi
918f7c2d50 ARM: dts: exynos: Expand the voltage range of buck1/3 regulator for exynos4412-odroidu3
This patch expands the voltage range of buck1/3 regulator due to as following:
- MIF (Memory Interface) bus frequency needs the range of '900 - 1100 mV'.
- INT (Internal) bus frequency needs the range of '900 - 1050 mV'.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:59 +02:00
Chanwoo Choi
691d010e5d ARM: dts: exynos: Add support of bus frequency using VDD_INT for exynos3250-rinato
This patch adds the bus device-tree nodes of INT (internal) block
to enable the bus frequency scaling. The following sub-blocks share
the VDD_INT power source:
- LEFTBUS (parent device)
- RIGHTBUS
- PERIL
- LCD0
- FSYS
- MCUISP / ISP
- MFC

The LEFTBUS is parent device with devfreq ondemand governor
and the rest of devices depend on the LEFTBUS device.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:58 +02:00
Chanwoo Choi
4a80467a7c ARM: dts: exynos: Add exynos4412-ppmu-common dtsi to delete duplicate PPMU nodes
This patch adds the exynos4412-ppmu-common.dtsi to remove duplicate PPMU nodes
because exynos3250-rinato/monk, exynos4412-trats2/odroidu3 has the same
PPMU device tree node.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:58 +02:00
Chanwoo Choi
f0ba9eaa91 ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4210
This patch adds the bus nodes for Exynos4210 SoC. Exynos4210 SoC has
one power line for all buses to translate data between DRAM and sub-blocks.

Following list specifies the detailed relation between DRAM and sub-blocks:
- DMC/ACP clock for DMC (Dynamic Memory Controller)
- ACLK200 clock for LCD0
- ACLK100 clock for PERIL/PERIR/MFC(PCLK)
- ACLK160 clock for CAM/TV/LCD0/LCD1
- ACLK133 clock for FSYS/GPS
- GDL/GDR clock for LEFTBUS/RIGHTBUS
- SCLK_MFC clock for MFC

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:58 +02:00
Chanwoo Choi
aa99564d91 ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos4x12
This patch adds the bus nodes using VDD_INT for Exynos4x12 SoC.
Exynos4x12 has the following AXI buses to translate data between
DRAM and sub-blocks.

Following list specifies the detailed relation between DRAM and sub-blocks:
- ACLK100 clock for PERIL/PERIR/MFC(PCLK)
- ACLK160 clock for CAM/TV/LCD
: The minimum clock of ACLK160 should be over 160MHz.
  When drop the clock under 160MHz, show the broken image.
- ACLK133 clock for FSYS
- GDL clock for LEFTBUS
- GDR clock for RIGHTBUS
- SCLK_MFC clock for MFC

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:57 +02:00
Chanwoo Choi
266bdc5d61 ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4x12
This patch adds the bus nodes using VDD_MIF for Exynos4x12 SoC.
Exynos4x12 has the following AXI buses to translate data
between DRAM and DMC/ACP/C2C.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:57 +02:00
Chanwoo Choi
304d10abb6 ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos3250
This patch adds the bus nodes using VDD_INT for Exynos3250 SoC.
Exynos3250 has following AXI buses to translate data between
DRAM and sub-blocks.

Following list specifies the detailed relation between DRAM and sub-blocks:
- ACLK400 clock for MCUISP
- ACLK266 clock for ISP
- ACLK200 clock for FSYS
- ACLK160 clock for LCD0
- ACLK100 clock for PERIL
- GDL clock for LEFTBUS
- GDR clock for RIGHTBUS
- SCLK_MFC clock for MFC

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:57 +02:00
Chanwoo Choi
e9a53680de ARM: dts: exynos: Add DMC bus frequency for exynos3250-rinato/monk
This patch adds the DMC (Dynamic Memory Controller) bus frequency node
which includes the devfreq-events and regulator properties. The bus
frequency support the DVFS (Dynamic Voltage Frequency Scaling) feature
with ondemand governor.

The devfreq-events (ppmu_dmc0*) can monitor the utilization of DMC bus
on runtime and the buck1_reg (VDD_MIF power line) supplies the power to
the DMC block.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:56 +02:00
Chanwoo Choi
6b088a62eb ARM: dts: exynos: Add DMC bus node for Exynos3250
This patch adds the DMC (Dynamic Memory Controller) bus node for Exynos3250 SoC.
The DMC is an AMBA AXI-compliant slave to interface external JEDEC standard
SDRAM devices. The bus includes the OPP tables and the source clock for DMC
block.

Following list specifies the detailed relation between the clock and DMC block:
- The source clock of DMC block : div_dmc

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-03 12:22:31 +02:00
Russell King
07a7056ccc ARM: provide arm_has_idmap_alias() helper
Provide a helper to indicate whether we need to perform special handling
for boot identity mapping aliases or not.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Pratyush Anand <panand@redhat.com>
2016-05-03 11:17:28 +01:00
Russell King
d0506a2395 ARM: kexec: remove 512MB restriction on kexec crashdump
The real limit is the top of the visible physical address space with
the MMU turned off.  Hence, we need to limit the crash kernel allocation
running-view physical address of the top of the boot-view physical
address space.

Reviewed-by: Pratyush Anand <panand@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-03 11:15:51 +01:00
Russell King
981b6714db ARM: provide improved virt_to_idmap() functionality
For kexec, we need more functionality from the IDMAP system.  We need to
be able to convert physical addresses to their identity mappped versions
as well as virtual addresses.

Convert the existing arch_virt_to_idmap() to deal with physical
addresses instead.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-03 11:13:54 +01:00
Russell King
61603016e2 ARM: kexec: fix crashkernel= handling
When the kernel crashkernel parameter is specified with just a size, we
are supposed to allocate a region from RAM to store the crashkernel.
However, ARM merely reserves physical address zero with no checking that
there is even RAM there.

Fix this by lifting similar code from x86, importing it to ARM with the
ARM specific parameters added.  In the absence of any platform specific
information, we allocate the crashkernel region from the first 512MB of
physical memory.

Update the kdump documentation to reflect this change.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Pratyush Anand <panand@redhat.com>
2016-05-03 11:13:45 +01:00
Marcel Ziswiler
975f0d100e ARM: dts: imx6: apalis: parallel lcd display support on ixora
Add parallel LCD display support for the EDT ET057090DHU 5.7" LCD TFT
panel.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 16:38:37 +08:00
Fabio Estevam
1dd58e12df ARM: dts: imx6sx-sdb: Add 198MHz operational point
imx6sx-sdb has custom operating points entries because it has one
power supply that drives both VDDARM_IN and VDDSOC_IN.

As per the MX6UL datasheet we have the following minimum voltages for
198 MHz operation (after adding the 25mV margin value):
VDDARM_IN = 0.975 V
VDDSOC_IN = 1.175 V

So use 1.175V for the 198MHz operation.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 16:36:43 +08:00
Fabio Estevam
96466f0478 ARM: dts: imx28-m28: Remove unneeded partition nodes
mtdparts is passed from command line, so there is no need to have a
default partitioning in device-tree.

Suggested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 16:26:09 +08:00
Fabio Estevam
714c29edf9 ARM: dts: imx6ul-pico-hobbit: Add initial support
Add initial support for imx6ul pico hobbit board.

For information about this board, please visit:
http://www.wandboard.org/images/hobbit/hobbitboard-imx6ul-reva1.pdf

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-05-03 11:32:31 +08:00
Andrey Smirnov
b410f3b68d ARM: dts: imx6qp: Specify imx6qp version of PCIe core
I.MX6Quad Plus has a slightly different version of PCIe core than reqular
i.MX6Quad.

Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2016-05-02 14:33:19 -05:00
Andy Shevchenko
2e65060e80 dmaengine: dw: revisit data_width property
There several changes are done here:

- Convert the property to be in bytes

  Besides that this is a common practice for such property, the use of a value
  in bytes much more convenient than handling the encoded one.

- Rename data_width to data-width in the device tree bindings

  The change leaves the support for the old format as well just in case someone
  will use a newer kernel with an old device tree blob.

- While here, replace dwc_fast_ffs() by __ffs()

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-05-02 15:30:47 +05:30
David Lechner
d0071281cf ARM: davinci: remove mmc dma resources
The davinci_mmc driver no longer uses platform resources for getting dma
channels. Instead lookup is now done using dma_slave_map.

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-02 10:33:20 +02:00
Stephen Boyd
e4c740e239 ARM: pxa: Remove CLK_IS_ROOT
This flag is a no-op now (see commit 47b0eeb3dc "clk: Deprecate
CLK_IS_ROOT", 2016-02-02) so remove it.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-04-30 10:27:09 +02:00
Robert Jarzmik
f806dac593 ARM: pxa: activate pinctrl for device-tree machines
Pincontrol is not yet ready for all PXA platforms.
For example, a legacy platform, if PINCTRL was activated, will fail its
calls to gpio_request() or gpio_direction_output(), as the pinctrl
driver might not be available, such as for pxa25x and pxa3xx.

As a step forward, activate pincontrol for all device-tree available
machines, ie. pxa27x device-tree based and pxa3xx device-tree based.

If it appears later that pincontrol is also required for legacy
platforms and if the mfp->pinctrl conversion can be achieved, then
PINCTRL will be activated for the whole PXA architecture.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-30 10:27:09 +02:00
Kevin Hilman
ed19ca7fa8 Allwinner fixes for 4.6
A single regulator fix
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Merge tag 'sunxi-fixes-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Allwinner fixes for 4.6

A single regulator fix

* tag 'sunxi-fixes-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: dts: sun8i-q8-common: Do not set constraints on dc1sw regulator
2016-04-29 12:04:02 -07:00
Arnd Bergmann
04b9665b54 ARM: davinci: only use NVMEM when available
The davinci platform contains code that calls into the nvmem
subsystem, but that might be a loadable module, causing a
link error:

arch/arm/mach-davinci/built-in.o: In function `davinci_get_mac_addr':
:(.text+0x1088): undefined reference to `nvmem_device_read'
arch/arm/mach-davinci/built-in.o: In function `read_factory_config':
:(.text+0x214c): undefined reference to `nvmem_device_read'

Also, when NVMEM is completely disabled, the functions fail with
nonobvious error messages.

This ensures we only call the API functions when the code is actually
reachable from the board file, and otherwise prints a unique log
message.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: bec3c11bad ("misc: at24: replace memory_accessor with nvmem_device_read")
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2016-04-29 11:58:38 -07:00
Thierry Reding
fe42f03176 ARM: multi_v7: Enable Tegra XUSB controller in defconfig
Enable the XUSB pad controller and XUSB controller (implementing an XHCI
interface) in the multi_v7 default configuration.

The XUSB pad controller is built-in because it is needed by PCIe, which
in turn provides the onboard ethernet used for network boot on a Jetson
TK1.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 18:13:52 +02:00
Thierry Reding
62a4e6824e ARM: tegra: Enable XUSB controller in defconfig
Enable the XUSB pad controller and XUSB controller (implementing an XHCI
interface) in the Tegra default configuration.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 18:13:51 +02:00
Thierry Reding
1333ce4def ARM: tegra: Enable XUSB on Nyan
Add XUSB pad controller and XUSB controller device tree nodes and enable
them with a configuration for the Nyan boards.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 16:49:56 +02:00
Thierry Reding
87c68119f5 ARM: tegra: Enable XUSB on Jetson TK1
Add XUSB pad controller and XUSB controller device tree nodes and enable
them with a configuration for the Jetson TK1 board.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 16:49:55 +02:00
Thierry Reding
4da6b31fdc ARM: tegra: Enable XUSB on Venice2
Add XUSB pad controller and XUSB controller device tree nodes and enable
them with a configuration for the Venice2 board.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 16:49:55 +02:00
Thierry Reding
2d8a9c9c0a ARM: tegra: Add Tegra124 XUSB controller
Add a device tree node for the Tegra XUSB controller. It contains a
phandle to the XUSB pad controller for control of the PHYs assigned
to the USB ports.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 16:49:54 +02:00
Thierry Reding
50623c5915 ARM: tegra: Move Tegra124 to the new XUSB pad controller binding
Use the new XUSB pad controller binding on Tegra124.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29 16:49:54 +02:00
Marc Zyngier
d4b9e0790a arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables
The ARM architecture mandates that when changing a page table entry
from a valid entry to another valid entry, an invalid entry is first
written, TLB invalidated, and only then the new entry being written.

The current code doesn't respect this, directly writing the new
entry and only then invalidating TLBs. Let's fix it up.

Cc: <stable@vger.kernel.org>
Reported-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2016-04-29 13:46:14 +02:00
Arnd Bergmann
48ea582f3d Part two of device tree changes for omaps for v4.7 merge window:
- Fix few typos for address-cells and interrupt-names
 
 - Update dra7 voltage rail limits
 
 - Update compatible string for pcf8575 for both nxp and ti prefix
 
 - Add omap5 configuration for gpadc
 
 - Update dra7 for qspi to remove pinmux as it needs to be done by
   the bootloader in isolation. Also update the qspi for 64MHz
   frequency.
 
 - Add support for Baltos ir2110 and ir3220
 
 - Add industrial and commercial grade thermal thresholds for am57xx
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Merge tag 'omap-for-v4.7/dt-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Merge "Part two of device tree changes for omaps for v4.7 merge window" from Tony Lindgren:

- Fix few typos for address-cells and interrupt-names

- Update dra7 voltage rail limits

- Update compatible string for pcf8575 for both nxp and ti prefix

- Add omap5 configuration for gpadc

- Update dra7 for qspi to remove pinmux as it needs to be done by
  the bootloader in isolation. Also update the qspi for 64MHz
  frequency.

- Add support for Baltos ir2110 and ir3220

- Add industrial and commercial grade thermal thresholds for am57xx

* tag 'omap-for-v4.7/dt-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am57xx-idk: Include Industrial grade  thermal thresholds
  ARM: dts: am57xx-beagle-x15: Include the commercial grade thresholds
  ARM: dts: am57xx: Introduce industrial grade thermal thresholds
  ARM: dts: am57xx: Introduce commercial grade thermal thresholds
  ARM: dts: add DTS for Baltos IR2110
  ARM: dts: add DTS for Baltos IR3220
  ARM: dts: split am335x-baltos-ir5221 into dts and dtsi files
  ARM: dts: dra7x: Support QSPI MODE-0 operation at 64MHz
  ARM: dts: dra7x: Remove QSPI pinmux
  ARM: dts: omap5-board-common: describe gpadc for Palmas
  ARM: dts: twl6030: describe gpadc
  ARM: dts: dra7xx: Fix compatible string for PCF8575 chip
  ARM: dts: AM57xx/DRA7: Update SoC voltage rail limits to match data sheet
  ARM: dts: OMAP36xx: : DT spelling s/#address-cell/#address-cells/
  ARM: dts: omap5-cm-t54: DT spelling s/interrupt-name/interrupt-names/
  ARM: dts: omap5-board-common: DT spelling s/interrupt-name/interrupt-names/
2016-04-29 00:09:04 +02:00
Arnd Bergmann
a651b61b87 Defconfig changes for omap2plus_defconfig for v4.7 merge window.
Mostly enable drivers used on various boards as loadable modules
 where possible. Also one warning fix related to RXKAD changes
 heading to v4.7. And run make save_defconfig to shrink down the
 size a bit.
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Merge tag 'omap-for-v4.7/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/defconfig

Merge "Defconfig changes for omap2plus_defconfig for v4.7 merge window" from Tony Lindgren:

Mostly enable drivers used on various boards as loadable modules
where possible. Also one warning fix related to RXKAD changes
heading to v4.7. And run make save_defconfig to shrink down the
size a bit.

* tag 'omap-for-v4.7/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: omap2plus_defconfig: Enable PWM and ir-rx51 as loadable modules
  ARM: omap2plus_defconfig: Enable twl6030 USB phy as loadable module
  ARM: omap2plus_defconfig: Fix warning due invalid RXKAD symbol value
  ARM: omap2plus_defconfig: Update with make savedefconfig
  ARM: omap2plus_defconfig: Enable MDIO Bus/PHY emulation support
  ARM: omap2plus_defconfig: Enable DP83867 support
  ARM: omap2plus_defconfig: Enable GPIO_TPIC2810
2016-04-29 00:07:48 +02:00
Arnd Bergmann
94a92cca9b SoC related changes for omaps for v4.7 merge window:
- Remove now unnecessary multi vs single SoC compile time optimizations
   as we are now using multiarch
 
 - Configure dra7 powerdomains
 
 - Clarify why omap-wakeupgen does not need to handle FROZEN transitions
 
 - Add dra7 module configuration for MaASP, PWMSS and timer 12
 
 - Add RTC module configuration unlock and lock functions
 
 - Fix hwmod idle state sanity check sequence
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Merge tag 'omap-for-v4.7/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Merge "SoC related changes for omaps for v4.7 merge window" from Tony Lindgren:

- Remove now unnecessary multi vs single SoC compile time optimizations
  as we are now using multiarch

- Configure dra7 powerdomains

- Clarify why omap-wakeupgen does not need to handle FROZEN transitions

- Add dra7 module configuration for MaASP, PWMSS and timer 12

- Add RTC module configuration unlock and lock functions

- Fix hwmod idle state sanity check sequence

* tag 'omap-for-v4.7/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: wakeupgen: Add comment for unhandled FROZEN transitions
  ARM: OMAP: DRA7: powerdomain data: Remove wrong OSWR capability
  ARM: OMAP: DRA7: powerdomain data: Fix "ON" state for memories
  ARM: OMAP: DRA7: powerdomain data: Erratum i892 workaround: Disable core INA
  ARM: OMAP2+: remove redundant multiplatform checks
  ARM: OMAP2+: hwmod: fix _idle() hwmod state sanity check sequence
  ARM: DRA7: hwmod: Add data for GPTimer 12
  ARM: AMx3xx: RTC: Add lock and unlock functions
  ARM: DRA7: RTC: Add lock and unlock functions
  ARM: OMAP2+: hwmod: RTC: Add lock and unlock functions
  ARM: OMAP2+: DRA7: Add hwmod entries for PWMSS
  ARM: DRA7: hwmod: Add data for McASP1/2/4/5/6/7/8
  ARM: DRA7: clockdomain: Implement timer workaround for errata i874
  ARM: OMAP2+: hwmod: Fix updating of sysconfig register
2016-04-29 00:05:07 +02:00
Tony Lindgren
10c1f7d32b ARM: OMAP2+: n900 needs MMC slot names for legacy user space
Let's pass the slot names in pdata like the legacy code does.
Once we have a generic DT binding for the slot names we can
switch to that.

Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28 14:26:33 -07:00
Tony Lindgren
8453c5cafd ARM: OMAP2+: Add more functions to pwm pdata for ir-rx51
Before we start removing omap3 legacy booting support, let's make n900
DT booting behave the same way for ir-rx51 as the legacy booting does.

For now, we need to pass pdata to the ir-rx51 driver. This means that
the n900 tree can move to using DT based booting without having to carry
all the legacy platform data with it when it gets dropped from the mainline
tree.

Note that the ir-rx51 driver is currently disabled because of the
dependency to !ARCH_MULTIPLATFORM. This will get sorted out later
with the help of drivers/pwm/pwm-omap-dmtimer.c. But first we need
to add chained IRQ support to dmtimer code to avoid introducing new
custom frameworks.

So let's just pass the necessary dmtimer functions to ir-rx51 so we
can get it working in the following patch.

Cc: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28 14:26:32 -07:00
Arnd Bergmann
036dae83b9 Topic branch for Samsung soc/drivers update for v4.7:
This moves Samsung SROM controller code from arm/mach-exynos into to
 separate driver under drivers/memory/samsung. In the future this driver
 will be re-used on ARM64 Exynos platform.
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Merge tag 'samsung-drivers-exynos-srom-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

Merge "Samsung soc/drivers update for v4.7" from Krzysztof Kozłowski:

This moves Samsung SROM controller code from arm/mach-exynos into to
separate driver under drivers/memory/samsung. In the future this driver
will be re-used on ARM64 Exynos platform.

* tag 'samsung-drivers-exynos-srom-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  memory: samsung: exynos-srom: Add support for bank configuration
  ARM: EXYNOS: Remove SROM related register settings from mach-exynos
  MAINTAINERS: Add maintainers entry for drivers/memory/samsung
  memory: Add support for Exynos SROM driver
  dt-bindings: EXYNOS: Add exynos-srom device tree binding
  ARM: dts: change SROM node compatible from generic to model specific
2016-04-28 18:40:05 +02:00
Arnd Bergmann
1cf257ab03 Renesas ARM Based SoC DT PM Domain Updates for v4.7
* Add SYSC PM Domains to DT for R-Car Gen 1 and 2 SoCs
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Merge tag 'renesas-dt-pm-domain-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/late

Merge "Renesas ARM Based SoC DT PM Domain Updates for v4.7" into next/late

* Add SYSC PM Domains to DT for R-Car Gen 1 and 2 SoCs

This pull requests is based on a merge of:

* "[GIT PULL] Second Round of Renesas ARM Based SoC R-Car SYSC Updates for
  v4.7", tagged as renesas-rcar-sysc2-for-v4.7, which you have already
  pulled.
* "[GIT PULL v2] Renesas ARM Based SoC DT Updates for v4.7",
  tagged as renesas-dt-for-v4.7, which you have also already pulled.

The reason for the somewhat tedious base on
renesas-rcar-sysc2-for-v4.7, which provides driver changes,
is a hard run-time dependency.

I also have a similar set of changes for arm64 which I will send separately.

* tag 'renesas-dt-pm-domain-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (88 commits)
  ARM: dts: r8a7794: Use SYSC "always-on" PM Domain
  ARM: dts: r8a7793: Use SYSC "always-on" PM Domain
  ARM: dts: r8a7791: Use SYSC "always-on" PM Domain
  ARM: dts: r8a7790: Use SYSC "always-on" PM Domain
  ARM: dts: r8a7779: Use SYSC "always-on" PM Domain
  ARM: dts: r8a7794: Add SYSC PM Domains
  ARM: dts: r8a7793: Add SYSC PM Domains
  ARM: dts: r8a7791: Add SYSC PM Domains
  ARM: dts: r8a7790: Add SYSC PM Domains
  ARM: dts: r8a7779: Add SYSC PM Domains
  soc: renesas: rcar-sysc: Add support for R-Car H3 power areas
  soc: renesas: rcar-sysc: Add support for R-Car E2 power areas
  soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas
  soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas
  soc: renesas: rcar-sysc: Add support for R-Car H2 power areas
  soc: renesas: rcar-sysc: Add support for R-Car H1 power areas
  soc: renesas: rcar-sysc: Enable Clock Domain for I/O devices
  ARM: dts: gose: Enable SDHI controllers
  ARM: dts: r8a7793: Add SDHI controllers
  ARM: dts: r8a7790: fix max-frequency for SDHI
  ...
2016-04-28 17:52:18 +02:00
Arnd Bergmann
98c67e7e4c NXP LPC32xx defconfig updates for v4.7
This includes savedefconfig update of lpc32xx_defconfig, which removes
 a number of outdated config options, plus ARM PrimeCell PL17x memory
 controller driver is enabled by default now, on LPC32xx boards the
 controller is commonly used to access SDRAM and NOR.
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Merge tag 'lpc32xx-defconfig-4.7' of git://github.com/vzapolskiy/linux-lpc32xx into next/defconfig

Merge "NXP LPC32xx defconfig updates for v4.7" from Vladimir Zapolskiy:

This includes savedefconfig update of lpc32xx_defconfig, which removes
a number of outdated config options, plus ARM PrimeCell PL17x memory
controller driver is enabled by default now, on LPC32xx boards the
controller is commonly used to access SDRAM and NOR.

* tag 'lpc32xx-defconfig-4.7' of git://github.com/vzapolskiy/linux-lpc32xx:
  ARM: LPC32xx: add PL175 memory controller driver to defconfig
  ARM: LPC32xx: defconfig update
2016-04-28 17:49:39 +02:00
Arnd Bergmann
6383190203 Second Round of Renesas ARM Based SoC Fixes for v4.6
* Don't disable referenced optional scif clock
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Merge tag 'renesas-fixes2-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Second Round of Renesas ARM Based SoC Fixes for v4.6" from Simon Horman:

* Don't disable referenced optional scif clock

* tag 'renesas-fixes2-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  arm64: dts: r8a7795: Don't disable referenced optional scif clock
  ARM: shmobile: timer: Fix preset_lpj leading to too short delays
  Revert "ARM: dts: porter: Enable SCIF_CLK frequency and pins"
  ARM: dts: r8a7791: Don't disable referenced optional clocks
2016-04-28 17:46:27 +02:00
Arnd Bergmann
94379acca0 Fixes for omaps for v4.6-rc cycle. All dts fixes, mostly
affecting voltages and pinctrl for various device drivers:
 
 - Regulator minimum voltage fixes for omap5
 
 - ISP syscon register offset fix for omap3
 
 - Fix regulator initial modes for n900
 
 - Fix omap5 pinctrl wkup instance size
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Merge tag 'omap-for-v4.6/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for v4.6-rc cycle. All dts fixes, mostly
affecting voltages and pinctrl for various device drivers:

- Regulator minimum voltage fixes for omap5

- ISP syscon register offset fix for omap3

- Fix regulator initial modes for n900

- Fix omap5 pinctrl wkup instance size

* tag 'omap-for-v4.6/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap5: fix range of permitted wakeup pinmux registers
  ARM: dts: omap3-n900: Specify peripherals LDO regulators initial mode
  ARM: dts: omap3: Fix ISP syscon register offset
  ARM: dts: omap5-cm-t54: fix ldo1_reg and ldo4_reg ranges
  ARM: dts: omap5-board-common: fix ldo1_reg and ldo4_reg ranges
2016-04-28 17:43:33 +02:00
Arnd Bergmann
2c69599867 DeviceTree changes for new SROM controller driver reached mainline
some time ago, before the driver was accepted (due to very late
 comments). However, after these late comments, the driver expects
 different bindings so we need to fix the DTS.
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Merge tag 'samsung-dt-exynos-srom-fixup-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt

Merge "ARM: dts: exynos: Fixup for SROM controller (v4.7)" from Krzysztof Kozlowski:

DeviceTree changes for new SROM controller driver reached mainline
some time ago, before the driver was accepted (due to very late
comments). However, after these late comments, the driver expects
different bindings so we need to fix the DTS.

* tag 'samsung-dt-exynos-srom-fixup-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: change SROM node compatible from generic to model specific
2016-04-28 17:40:37 +02:00
Arnd Bergmann
816a1b15ef Merge tag 'socfpga_dts_for_v4.7_part_2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/dt
Merge "SoCFPGA DTS update for v4.7, part 2" from Dinh Nguyen:

- Add samtec VIN|ING board

* tag 'socfpga_dts_for_v4.7_part_2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  ARM: dts: socfpga: Add samtec VIN|ING board
2016-04-28 17:35:04 +02:00
Keerthy
5b6042237d ARM: dts: am57xx-idk: Include Industrial grade thermal thresholds
am57xx-idk have Industrial grade samples whose thermal
thresholds are different as compared with dra7. Hence correcting the same.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28 08:08:48 -07:00
Keerthy
266e62f975 ARM: dts: am57xx-beagle-x15: Include the commercial grade thresholds
am57xx-beagle-x15 have commercial grade samples whose
thermal thresholds lower than dra7. Hence correcting the same.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28 08:08:47 -07:00
Keerthy
cf9b7d5e9c ARM: dts: am57xx: Introduce industrial grade thermal thresholds
The silicon version ES2.0 onwards are industrial grade samples
and have higher thermal thresholds than commecial grade samples.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28 08:08:47 -07:00
Keerthy
286db0a516 ARM: dts: am57xx: Introduce commercial grade thermal thresholds
The silicon versions which are non ES2.0 are commercial grade silicon
and have lower thermal thresholds.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28 08:08:47 -07:00
Arnd Bergmann
da3a6c4787 Secound round of Samsung Device Tree updates and improvements for v4.7:
1. Cleanup regulator bindings on Exynos5420 boards.
 2. Support MIC bypass in display path for Exynos5420.
 3. Enable PRNG and SSS for all Exynos4 devices.
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Merge tag 'samsung-dt-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt

Merge "Secound round of Samsung Device Tree updates and improvements for v4.7" from Krzysztof Kozlowski:
1. Cleanup regulator bindings on Exynos5420 boards.
2. Support MIC bypass in display path for Exynos5420.
3. Enable PRNG and SSS for all Exynos4 devices.

* tag 'samsung-dt-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: exynos: Enable PRNG and SSS for all Exynos4 devices
  ARM: dts: exynos: Add exynos5420-fimd compatible
  ARM: dts: exynos: Remove unsupported s2mps11 regulator bindings from Exynos5420 boards
2016-04-28 16:05:46 +02:00
Arnd Bergmann
a050ebb014 Second Round of Renesas ARM Based SoC DT Updates for v4.7
* Don't disable referenced optional clocks in DT of R-Car Gen 1 & 2 SoCs
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Merge tag 'renesas-dt2-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt

Merge "Second Round of Renesas ARM Based SoC DT Updates for v4.7" from Simon Horman

* Don't disable referenced optional clocks in DT of R-Car Gen 1 & 2 SoCs

* tag 'renesas-dt2-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: dts: r8a7794: Don't disable referenced optional clocks
  ARM: dts: r8a7793: Don't disable referenced optional clocks
  ARM: dts: r8a7790: Don't disable referenced optional clocks
  ARM: dts: r8a7779: Don't disable referenced optional clocks
  ARM: dts: r8a7778: Don't disable referenced optional clocks
2016-04-28 15:50:31 +02:00
Arnd Bergmann
0d6cde5093 NXP LPC32xx device tree updates for v4.7
This includes a few functional changes:
 * new representation of MIC, SIC1 and SIC2 interrupt controllers,
 * disabled by default SPI1, SPI2, SSP0 and SSP1 SPI controllers in
   shared lpc32xx.dtsi file,
 * added clock sources for SPI1 and SPI2,
 * set default clock rate of HCLK PLL to main osc rate multiplied by 16.
 
 Also there are some non-functional changes:
 * flatten board DTS files by exploiting device node labels,
 * add 'partitions' device node for NAND SLC / MTD OF,
 * correct Atmel vendor prefix to describe on board AT24 EEPROMs,
 * rename board DTS files by adding SoC name prefix.
 
 Since now DTS files of LPC32xx boards match "^lpc32[2345]0-" pattern.
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Merge tag 'lpc32xx-dt-4.7' of git://github.com/vzapolskiy/linux-lpc32xx into next/dt

Merge "NXP LPC32xx device tree updates for v4.7" from Vladimir Zapolskiy:

This includes a few functional changes:
* new representation of MIC, SIC1 and SIC2 interrupt controllers,
* disabled by default SPI1, SPI2, SSP0 and SSP1 SPI controllers in
  shared lpc32xx.dtsi file,
* added clock sources for SPI1 and SPI2,
* set default clock rate of HCLK PLL to main osc rate multiplied by 16.

Also there are some non-functional changes:
* flatten board DTS files by exploiting device node labels,
* add 'partitions' device node for NAND SLC / MTD OF,
* correct Atmel vendor prefix to describe on board AT24 EEPROMs,
* rename board DTS files by adding SoC name prefix.

Since now DTS files of LPC32xx boards match "^lpc32[2345]0-" pattern.

* tag 'lpc32xx-dt-4.7' of git://github.com/vzapolskiy/linux-lpc32xx:
  ARM: dts: lpc32xx: phy3250: add SoC name prefix to board dts file
  ARM: dts: lpc32xx: phy3250: add NAND partitions device node
  ARM: dts: lpc32xx: phy3250: avoid extension of device nodes by absolute path
  ARM: dts: lpc32xx: ea3250: add SoC name prefix to board dts file
  ARM: dts: lpc32xx: ea3250: fix Atmel at24 eeprom vendor
  ARM: dts: lpc32xx: ea3250: add NAND partitions device node
  ARM: dts: lpc32xx: ea3250: avoid extension of device nodes by absolute path
  ARM: dts: lpc32xx: reparent SIC1 and SIC2 interrupts from MIC
  dt-bindings: interrupt-controllers: add description of SIC1 and SIC2
  ARM: dts: lpc32xx: disabled ssp0/spi1 & ssp1/spi2 by default
  ARM: dts: phy3250: enable ssp0
  ARM: dts: lpc32xx: add clock properties to spi nodes
  ARM: dts: lpc32xx: set default clock rate of HCLK PLL
2016-04-28 15:45:24 +02:00
Arnd Bergmann
ff83b377cb Second batch of DT changes for 4.7:
- three low priority fixes:
   - sama5d2: one pin definition and dependency with the slow clock for watchdog
   - sama5d4: definition of watchdog IRQ property
 - addition of the new shutdown controller to sama5d2 & sama5d2 Xplained
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Merge tag 'at91-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/dt

Merge "Second batch of DT changes for 4.7" from Nicolas Ferre:

- three low priority fixes:
  - sama5d2: one pin definition and dependency with the slow clock for watchdog
  - sama5d4: definition of watchdog IRQ property
- addition of the new shutdown controller to sama5d2 & sama5d2 Xplained

* tag 'at91-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: dts: at91: sama5d2: add slow clock to watchdog node
  ARM: dts: at91: sama5d2: add shutdown controller node
  ARM: dts: at91: sama5d4: add watchdog interrupt property
  ARM: dts: at91: fix typo in sama5d2 PIN_PD24 description
2016-04-28 15:44:04 +02:00
Arnd Bergmann
b48e5aa6bc Highlights:
-----------
  - Add CPUFreq support to STiH407 family
  - Add Mailbox nodes to STiH407 family
  - Add RemoteProc nodes to STiH407 family
  - Use 'reserved-memory' for DMA memory on STiH407
  - Use the LPC timer as a clocksource
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Merge tag 'sti-dt-for-v4.7b-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti into next/dt

Merge "STi DT updates for v4.7 #1" from Maxime Coquelin:

Highlights:
-----------
 - Add CPUFreq support to STiH407 family
 - Add Mailbox nodes to STiH407 family
 - Add RemoteProc nodes to STiH407 family
 - Use 'reserved-memory' for DMA memory on STiH407
 - Use the LPC timer as a clocksource

* tag 'sti-dt-for-v4.7b-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti:
  ARM: dts: STi: STih407: Switch LPC mode from RTC to Clocksource
  ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA memory
  ARM: dts: STiH407: Add nodes for RemoteProc
  ARM: dts: STi: stih407-family: Add nodes for Mailbox
  ARM: dts: STi: STiH407: Provide CPU with a means to look-up Major number
  ARM: dts: STi: STiH407: Link CPU with its voltage supply
  ARM: dts: STi: STiH407: Provide CPU with clocking information
  ARM: dts: STi: STiH407: Provide generic (safe) DVFS configuration
2016-04-28 15:41:28 +02:00
Viresh Kumar
9f123def55 cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/
Move cpufreq bits for mvebu into drivers/cpufreq/ directory, that's
where they really belong to.

Compiled tested only.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28 15:22:43 +02:00
Viresh Kumar
947bd567f7 mvebu: Use dev_pm_opp_set_sharing_cpus() to mark OPP tables as shared
That will allow us to avoid using cpufreq-dt platform data.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28 15:22:43 +02:00
Rafael J. Wysocki
29c5e7b2bc Merge back earlier cpufreq material for v4.7. 2016-04-28 15:19:31 +02:00
AKASHI Takahiro
67f6919766 arm64: kvm: allows kvm cpu hotplug
The current kvm implementation on arm64 does cpu-specific initialization
at system boot, and has no way to gracefully shutdown a core in terms of
kvm. This prevents kexec from rebooting the system at EL2.

This patch adds a cpu tear-down function and also puts an existing cpu-init
code into a separate function, kvm_arch_hardware_disable() and
kvm_arch_hardware_enable() respectively.
We don't need the arm64 specific cpu hotplug hook any more.

Since this patch modifies common code between arm and arm64, one stub
definition, __cpu_reset_hyp_mode(), is added on arm side to avoid
compilation errors.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
[Rebase, added separate VHE init/exit path, changed resets use of
 kvm_call_hyp() to the __version, en/disabled hardware in init_subsystems(),
 added icache maintenance to __kvm_hyp_reset() and removed lr restore, removed
 guest-enter after teardown handling]
Signed-off-by: James Morse <james.morse@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-28 12:05:46 +01:00
Mark Rutland
207a90e5cb arm/efi: Enable runtime call flag checking
Define ARCH_EFI_IRQ_FLAGS_MASK for arm, which will enable the generic
runtime wrapper code to detect when firmware erroneously modifies flags
over a runtime services function call.

We check all allocated flags, barring those which firmware has
legitimate reason to modify (condition flags and IT state). While in
practice corruption of some flags (e.g. J) would already be fatal, we
include these for consistency and documentation purposes.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-39-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28 11:34:12 +02:00
Mark Rutland
819fc126ed arm/efi: Move to generic {__,}efi_call_virt()
Now there's a common template for {__,}efi_call_virt(), remove the
duplicate logic from the ARM EFI code.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-34-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28 11:34:08 +02:00
Ard Biesheuvel
9822504c1f efifb: Enable the efi-framebuffer platform driver for ARM and arm64
Allows the efifb driver to be built for ARM and arm64. This simply involves
updating the Kconfig dependency expression, and supplying dummy versions of
efifb_setup_from_dmi().

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-25-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28 11:34:01 +02:00
Ard Biesheuvel
801820bee9 efi/arm/libstub: Make screen_info accessible to the UEFI stub
In order to hand over the framebuffer described by the GOP protocol and
discovered by the UEFI stub, make struct screen_info accessible by the
stub. This involves allocating a loader data buffer and passing it to the
kernel proper via a UEFI Configuration Table, since the UEFI stub executes
in the context of the decompressor, and cannot access the kernel's copy of
struct screen_info directly.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-22-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28 11:33:59 +02:00
Ard Biesheuvel
fc37206427 efi/libstub: Move Graphics Output Protocol handling to generic code
The Graphics Output Protocol code executes in the stub, so create a generic
version based on the x86 version in libstub so that we can move other archs
to it in subsequent patches. The new source file gop.c is added to the
libstub build for all architectures, but only wired up for x86.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-18-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28 11:33:57 +02:00
Ard Biesheuvel
9fc68b717c ARM/efi: Apply strict permissions for UEFI Runtime Services regions
Recent UEFI versions expose permission attributes for runtime services
memory regions, either in the UEFI memory map or in the separate memory
attributes table.  This allows the kernel to map these regions with
stricter permissions, rather than the RWX permissions that are used by
default. So wire this up in our mapping routine.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-11-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28 11:33:53 +02:00
Andy Lutomirski
88f10e37e1 sched/core, ARM: Include linux/preempt.h from asm/mmu_context.h
arm's mmu_context.h uses preempt_enable_no_resched and but doesn't
include anything that would pull in the declaration.

If I start including <asm/mmu_context.h> from <linux/mmu_context.h>
without this, the build breaks.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/5b95730a70f2dafe12d4fbf38d20eb7330d67ba3.1461688545.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28 11:08:41 +02:00
Sascha Hauer
5616f36713 ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel
The secondary CPU starts up in ARM mode. When the kernel is compiled in
thumb2 mode we have to explicitly compile the secondary startup
trampoline in ARM mode, otherwise the CPU will go to Nirvana.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reported-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2016-04-27 15:19:21 -07:00
Vladimir Zapolskiy
71d42e9c71 ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup
Remove redundant duplicate const, which is found by smatch:

  arch/arm/mach-lpc32xx/phy3250.c:162:42: warning: duplicate const

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:45:12 +03:00
Vladimir Zapolskiy
d82b4b0a5e ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers
After switching the platform to common clock framework there is no
more need to keep dead code in arch/arm/mach-lpc32xx, which glued
legacy clock source and clock provider drivers, remove the leftovers.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:45:01 +03:00
Sylvain Lemieux
715552aa30 ARM: lpc32xx: remove reboot header file
The header file "reboot.h" is no longer needed, following
the migration of the restart code into the pnx4008 watchdog.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:44:41 +03:00
Vladimir Zapolskiy
3ff11fe8e8 ARM: dts: lpc32xx: phy3250: add SoC name prefix to board dts file
To simplify matching of DTS files of all NXP LPC32xx powered boards by
a file name add 'lpc3250' prefix to PHYTEC PHYCORE-LPC3250 board dts
file.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:40:48 +03:00
Vladimir Zapolskiy
9cfde0a1fe ARM: dts: lpc32xx: phy3250: add NAND partitions device node
To declare MTD OF partitions NAND controller device node should have
a special 'partitions' subnode, the change removes a debug message
from mtd/ofpart on boot:

  nxp_lpc3220_slc: 'partitions' subnode not found on /ahb/flash@20020000.
  Trying to parse direct subnodes as partitions.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:40:34 +03:00
Vladimir Zapolskiy
6101f4bcb3 ARM: dts: lpc32xx: phy3250: avoid extension of device nodes by absolute path
The change simplifies layout of PHY3250 board description by
referencing device nodes of LPC32xx controllers by label.

No functional change intended.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:40:16 +03:00
Vladimir Zapolskiy
d9a95d5764 ARM: dts: lpc32xx: ea3250: add SoC name prefix to board dts file
To simplify matching of DTS files of all NXP LPC32xx powered boards by
a file name add 'lpc3250' prefix to Embedded Artists LPC3250 board dts
file.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:39:00 +03:00
Vladimir Zapolskiy
118e24cd62 ARM: dts: lpc32xx: ea3250: fix Atmel at24 eeprom vendor
There is no 'at' hardware vendor defined yet, correct vendor prefix
for Atmel is 'atmel'.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:38:42 +03:00
Vladimir Zapolskiy
72fa28e266 ARM: dts: lpc32xx: ea3250: add NAND partitions device node
To declare MTD OF partitions NAND controller device node should have
a special 'partitions' subnode, the change removes a debug message
from mtd/ofpart on boot:

  nxp_lpc3220_slc: 'partitions' subnode not found on /ahb/flash@20020000.
  Trying to parse direct subnodes as partitions.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:38:23 +03:00
Vladimir Zapolskiy
1a096afc7c ARM: dts: lpc32xx: ea3250: avoid extension of device nodes by absolute path
The change simplifies layout of EA3250 board description by
referencing device nodes of LPC32xx controllers by label.

No functional change intended.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:37:59 +03:00
Vladimir Zapolskiy
9b8ad3fb81 ARM: dts: lpc32xx: reparent SIC1 and SIC2 interrupts from MIC
The change adds separate device nodes for SIC1 and SIC2 interrupt
controllers and reparents all defined SIC1 and SIC2 interrupt
producers to the correspondent interrupt controller, this is needed to
perform switching to a new LPC32xx MIC/SIC interrupt controller driver.

Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2016-04-28 00:37:15 +03:00
Tony Lindgren
714749313d ARM: omap2plus_defconfig: Enable PWM and ir-rx51 as loadable modules
These are available on n900.

Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-27 09:40:09 -07:00
Arnaldo Carvalho de Melo
c5dfd78eb7 perf core: Allow setting up max frame stack depth via sysctl
The default remains 127, which is good for most cases, and not even hit
most of the time, but then for some cases, as reported by Brendan, 1024+
deep frames are appearing on the radar for things like groovy, ruby.

And in some workloads putting a _lower_ cap on this may make sense. One
that is per event still needs to be put in place tho.

The new file is:

  # cat /proc/sys/kernel/perf_event_max_stack
  127

Chaging it:

  # echo 256 > /proc/sys/kernel/perf_event_max_stack
  # cat /proc/sys/kernel/perf_event_max_stack
  256

But as soon as there is some event using callchains we get:

  # echo 512 > /proc/sys/kernel/perf_event_max_stack
  -bash: echo: write error: Device or resource busy
  #

Because we only allocate the callchain percpu data structures when there
is a user, which allows for changing the max easily, its just a matter
of having no callchain users at that point.

Reported-and-Tested-by: Brendan Gregg <brendan.d.gregg@gmail.com>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/20160426002928.GB16708@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-27 10:20:39 -03:00
Nicolas Ferre
88677db54d ARM: dts: at91: VInCo: fix phy reset gpio flag
Fix gpio active flag for the phy reset-gpios property. The line is
active low instead of active high.
Actually, this flags was never used by the macb driver.

Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-27 14:08:58 +02:00
Nicolas Ferre
517550075c ARM: dts: at91: sama5d2: add slow clock to watchdog node
As the watchdog timer needs the slow clock, add it to the currently defined
wdt node.

Reported-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-04-27 14:08:58 +02:00
Nicolas Ferre
e4b9a21b25 ARM: dts: at91: sama5d2: add shutdown controller node
Add the SAMA5D2-Compatible Shutdown Controller node to sama5d2.dtsi
and the use of it in the sama5d2 Xplained board dts file.

Enable the RTC wakeup event and the "wake up" button support through the
input "0" that is present on the board.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-27 14:08:57 +02:00
Nicolas Ferre
20ce85130d ARM: dts: at91: sama5d4: add watchdog interrupt property
The "interrupts" property is missing from the watchdog node. Add it with
highest priority value of 7.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-27 14:08:57 +02:00
Nicolas Ferre
ed87957b18 ARM: multi_v7_defconfig: add the Atmel sama5d2-compatible ADC driver
Add the new sama5d2-compatible ADC driver as a module.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-27 14:07:59 +02:00
Nicolas Ferre
49518015fc ARM: multi_v7_defconfig: add the Atmel Audio microphone interface PDMIC
Add the Atmel Pulse Density Modulation Interface Controller (PDMIC) driver
as a module. It's used by sama5d2 SoC for instance.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-27 14:07:58 +02:00
Nicolas Ferre
955c1129ae ARM: multi_v7_defconfig: add Atmel ISI (Image Sensor Interface) driver
Add the Atmel Image Sensor Interface (ISI) VIDEO driver as a module.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-27 14:07:58 +02:00
Nicolas Ferre
54b31de0be ARM: multi_v7_defconfig: add Atmel watchdog timers
Add both Atmel watchdog timers to the multi_v7_defconfig. They are added
as part of the kernel because it's a core piece of the system.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-27 14:07:57 +02:00
Boris Brezillon
a95c630724 ARM: multi_v7_defconfig: add HLCDC drivers as modules
Add the HLCDC drivers to multi_v7_defconfig.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-27 14:07:57 +02:00
Nicolas Ferre
35f110ec54 ARM: at91/defconfig: add PDMIC driver to sama5_defconfig
Add Pulse Density Modulation Interface Controller (PDMIC) driver compilation
for sama5 default configuration. Is used by sama5d2 SoC for instance.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-04-27 14:07:26 +02:00
Nicolas Ferre
a331acbd55 ARM: at91/defconfig: add HLCDC driver to sama5_defconfig
Add the LCD DRM driver with all its dependencies:
- the MFD driver
- the backlight PWM
- the simple panel driver

Remove the CONFIG_FB as it is not needed on any sama5 device.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-04-27 14:07:19 +02:00
Nicolas Ferre
2b1b2f0e76 ARM: at91/defconfig: add the HDMA controller to sama5_defconfig
Selection of the HDMAC option is now needed to allow some sama5 devices
to have the DMA driver compiled and available.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-04-27 14:07:03 +02:00
Stephen Boyd
3a1a455962 ARM: dove: Remove CLK_IS_ROOT
This flag is a no-op now (see commit 47b0eeb3dc "clk: Deprecate
CLK_IS_ROOT", 2016-02-02) so remove it.

Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-04-27 13:55:52 +02:00