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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers
Merge "Rockchip driver updates for v4.7 - part2" from Heiko Stübner:
Ability to save and restore the power-domain quality of service
settings that get lost and reset on power-domain power cycles.
* tag 'v4.7-rockchip-drivers-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
soc: rockchip: power-domain: support qos save and restore
dt-bindings: modify document of Rockchip power domains
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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
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers
Merge "Second Round of Renesas ARM Based SoC R-Car SYSC Updates for v4.7" from Simon Horman:
Introduce a DT-based driver for the R-Car System Controller, as found on
Renesas R-Car H1, R-Car Gen2, and R-Car Gen3 SoCs.
* tag 'renesas-rcar-sysc2-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (30 commits)
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
soc: renesas: rcar-sysc: Make rcar_sysc_power_is_off() static
soc: renesas: rcar-sysc: Add DT support for SYSC PM domains
soc: renesas: rcar-sysc: Improve rcar_sysc_power() debug info
soc: renesas: Move pm-rcar to drivers/soc/renesas/rcar-sysc
clk: renesas: cpg-mssr: Export cpg_mssr_{at,de}tach_dev()
clk: renesas: mstp: Provide dummy attach/detach_dev callbacks
clk: renesas: Provide Kconfig symbols for CPG/MSSR and CPG/MSTP support
soc: renesas: Add r8a7795 SYSC PM Domain Binding Definitions
soc: renesas: Add r8a7794 SYSC PM Domain Binding Definitions
soc: renesas: Add r8a7793 SYSC PM Domain Binding Definitions
soc: renesas: Add r8a7791 SYSC PM Domain Binding Definitions
soc: renesas: Add r8a7790 SYSC PM Domain Binding Definitions
soc: renesas: Add r8a7779 SYSC PM Domain Binding Definitions
...
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The previous patch marked these two as 'static' which showed that they
are sometimes unused:
drivers/firmware/psci.c:103:13: error: 'psci_power_state_is_valid' defined but not used [-Werror=unused-function]
static bool psci_power_state_is_valid(u32 state)
drivers/firmware/psci.c:94:13: error: 'psci_power_state_loses_context' defined but not used [-Werror=unused-function]
static bool psci_power_state_loses_context(u32 state)
This also marks the functions 'inline', which has the main effect of
silently ignoring them when they are unused. The compiler will typically
inline small static functions anyway, so this seems more appropriate
than using __maybe_unused, which would have the same result otherwise.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 21e8868 ("drivers: firmware: psci: make two helper functions static")
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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R-Car M2-N is identical to R-Car M2-W w.r.t. power domains, so reuse the
definitions from the latter.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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On R-Car H3, some power areas (e.g. A3VP) contain I/O devices, which are
also part of the CPG/MSSR Clock Domain.
On all R-Car SoCs, devices in the "always-on" PM Domain are part of the
Clock Domain served by the CPG/MSSR or CPG/MSTP driver.
Hook up the CPG/MSTP or CPG/MSSR Clock Domain attach/detach callbacks to
enable power management using module clocks. Which callback to hook up
depends on the presence of device nodes compatible with
"renesas,cpg-mstp-clocks". This clears the path for a future migration
from the CPG/MSTP to the CPG/MSSR driver on R-Car H1 and
Gen2.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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With the newly added physmap_of_versatile code, we get a build error
when physmap_of is in a module, because of_flash_probe_versatile
is not exported:
ERROR: "of_flash_probe_versatile" [drivers/mtd/maps/physmap_of.ko] undefined!
This adds the export, and changes the Makefile so that the code is
also put into a loadable module rather than built-in when physmap_of
itself is a module.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Do not leak a ioremap()'d cookie around, unmaping it in case of errors
Fixes: cef4bafcea2c ("soc: brcmstb: add SoC driver to brcmstb")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The newly added code for the SoC bus fails to link if the
bus is not built:
drivers/soc/built-in.o: In function `brcmstb_soc_device_init':
:(.init.text+0x110): undefined reference to `soc_device_register'
This adds a 'select' statement to avoid the error.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: cef4bafcea2c ("soc: brcmstb: add SoC driver to brcmstb")
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers
Merge "Qualcomm ARM Based SoC Updates for v4.7 part 2" from Andy Gross:
* Change SMD callback parameters
* Use writecombine mapping for SMEM
* tag 'qcom-soc-for-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
soc: qcom: smd: Make callback pass channel reference
soc: qcom: smem: Use write-combine remap for SMEM
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into next/drivers
Merge "Broadcom ARM-based SoCs drivers changes" from Florian Fainelli:
- Justin adds a soc_dev driver to properly report to user-space the Broadcom
STB SoC family, product and revision
- Florian reworks how the brcmstb_gisb driver dependency is done to enable it
on Broadcom STB MIPS-based SoCs and remove a select in
arch/arm/mach-bcm/Kconfig
* tag 'arm-soc/for-4.7/drivers' of http://github.com/Broadcom/stblinux:
bus: brcmstb_gisb: Rework dependencies
soc: brcmstb: add SoC driver to brcmstb
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psci_power_state_loses_context() and psci_power_state_is_valid are only
used internally now, so make them static.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This is to fix below sparse warning:
drivers/firmware/psci.c:mmm:nn: warning: duplicate const
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
Merge "soc/tegra: Changes for v4.7-rc1" from Thierry Reding:
This contains a bunch of preparatory patches to the PMC driver which are
a prerequisite to moving the driver to generic power domains.
* tag 'tegra-for-4.7-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
dt-bindings: Update NVIDIA PMC for Tegra
soc/tegra: pmc: Wait for powergate state to change
soc/tegra: pmc: Ensure GPU partition can be toggled on/off by PMC
soc/tegra: pmc: Remove additional check for a valid partition
soc/tegra: pmc: Fix verification of valid partitions
soc/tegra: pmc: Fix testing of powergate state
soc/tegra: pmc: Change powergate and rail IDs to be an unsigned type
soc/tegra: pmc: Protect public functions from potential race conditions
soc/tegra: pmc: Restore base address on probe failure
soc/tegra: pmc: Remove non-existing L2 partition for Tegra124
soc/tegra: pmc: Remove non-existing power partitions for Tegra210
soc/tegra: pmc: Remove debugfs entry on probe failure
soc/tegra: pmc: Fix sparse warning for tegra_pmc_init_tsense_reset()
soc/tegra: pmc: Add missing structure members to kernel-doc
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into next/drivers
Merge "move Versatile flash protection to the device tree" from Linus Walleij:
This is a set of patches removing the board file code
for Versatile flash handling and instead moving it over
to the device tree and a special add-on file.
* tag 'versatile-flash-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: integrator: move flash registration to device tree
ARM: versatile: move flash registration to the device tree
mtd: augment the "arm,versatile-flash" bindings
mtd: physmap_of: add a hook for Versatile write protection
Acked-by: Brian Norris <computersforpeace@gmail.com>
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As of commit b12ff41658171f53 ("ARM: shmobile: r8a7779: Remove legacy PM
Domain remainings"), rcar_sysc_power_is_off() is no longer used from
SoC-specific code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Populate the SYSC PM domains from DT, based on the presence of a device
node for the System Controller. The actual power area hiearchy, and
features of specific areas are obtained from tables in the C code.
The SYSCIER and SYSCIMR register values are derived from the power areas
present, which will help to get rid of the hardcoded values in R-Car H1
and R-Car Gen2 platform code later.
Initialization is done from an early_initcall(), to make sure the PM
Domains are initialized before secondary CPU bringup.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Print requested power domain state.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Move the pm-rcar driver from arch/arm/mach-shmobile/ to
drivers/soc/renesas/, and its header file to include/linux/soc/renesas/,
so it can be shared between arm32 (R-Car H1 and Gen2) and arm64 (R-Car
Gen3). Rename it to rcar-sysc as it's really a driver for the R-Car
System Controller (SYSC).
Kill the intermediate PM_RCAR config symbol, as it's not user
configurable anymore, and to prepare for SoC-specific make rules.
Add the missing #include <linux/types.h> to rcar-sysc.h, which was
exposed by different include order.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into rcar-sysc-for-v4.7
clk: renesas: R-Car SYSC PM Domain Preparation
- Export the CPG/MSSR and CPG/MSTP attach/detach_dev callbacks, so
they can be called by the R-Car SYSC PM Domain driver.
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support qos save and restore when power domain on/off.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Rockchip Socs contain quality of service (qos) blocks managing priority,
bandwidth, etc of the connection of each domain to the interconnect.
These blocks loose state when their domain gets disabled and therefore
need to be saved when disabling and restored when enabling a power-domain.
These qos blocks also are similar over all currently available Rockchip
SoCs.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The R-Car SYSC PM Domain driver has to power manage devices in power
areas using clocks. To reuse code and to share knowledge of clocks
suitable for power management, this is ideally done through the existing
cpg_mssr_attach_dev() and cpg_mssr_detach_dev() callbacks.
Hence these callbacks can no longer rely on their "domain" parameter
pointing to the CPG/MSSR Clock Domain. To handle this, keep a pointer to
the clock domain in a static variable. cpg_mssr_attach_dev() has to
support probe deferral, as the R-Car SYSC PM Domain may be initialized,
and devices may be added to it, before the CPG/MSSR Clock Domain is
initialized.
Dummy callbacks are provided for the case where CPG/MSTP support is not
included, so the rcar-sysc driver won't have to care about this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Provide dummy cpg_mstp_{at,de}tach_dev() PM Domain callbacks if CPG/MSTP
support is not included, so the rcar-sysc driver won't have to care
about this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Currently the decision whether to build the renesas-cpg-mssr and
clk-mstp drivers is handled by Makefile logic. However, the rcar-sysc
driver will need to know whether CPG/MSSR and/or CPG/MSTP support are
available or not.
To avoid having to duplicate this logic, move it to Kconfig. Provide
non-visible CLK_RENESAS_CPG_MSSR and CLK_RENESAS_CPG_MSTP Kconfig
symbols, which can be used by both Makefiles and C code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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By passing the smd channel reference to the callback, rather than the
smd device, we can open additional smd channels from sub-devices of smd
devices.
Also updates the two smd clients today found in mainline.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
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Mapping the SMEM region as write combine makes the contiguous writes
in SMD perform better and also allows us to do unaligned read and writes
on ARM64.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
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Qualcomm ARM Based SoC Updates for v4.7
* Add stubs for smem_state to fix build issues
* Fix module usage in SPM driver
* Add i2c and spi entries into QCOM MAINTAINERS entry
* Add SMD multi channel support
* Add clks to QCOM MAINTAINERS
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Do not have the machine Kconfig entry point need to select
BRCMSTB_GISB_ARB, instead, just let it be default ARCH_BRCMSTB which is
a better way to deal with this. While at it, also make it default
BMIPS_GENERIC so the legacy MIPS-based STB platforms can benefit from
the same thing.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Value of soc_dev_attributes:
* family = chip family id
* soc_id = product id
* revision = product revision
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Implement handling properties in subnodes and adding child devices to the
system. Child devices will not be added if configuration fails.
Since the driver now does more than suspend-resume support, dependency on
CONFIG_PM is removed.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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As now we have dedicated driver for SROM controller, it will take care
of saving register banks during S2R so we can safely remove these
settings from mach-exynos.
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
[k.kozlowski: Need to select also SAMSUNG_MC]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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Add maintainers entry for new driver folder drivers/memory/samsung.
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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This patch adds Exynos SROM controller driver which will handle
save restore of SROM registers during S2R.
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[p.fedin@samsung.com: tested on SMDK5410]
Tested-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
[k.kozlowski: Minor COMPILE_TEST adjustments in Kconfig entries]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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This patch adds exynos-srom binding information for SROM Controller
driver on Exynos SoCs. Documentation for new subnode properties,
allowing bank configuration are added based on u-boot implementation,
but heavily reworked.
CC: Rob Herring <robh+dt@kernel.org>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
[p.fedin: Added SROMc configuration description and fixed SROMc mapping]
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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for-v4.7/drivers-memory-exynos-srom
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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This patch changes SROM nodes compatible from generic to model specific
to match with binding documentation. Also updating property
"samsung,srom-page-mode" as it is not defined as bool instead of int
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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R-Car M2-N is identical to R-Car M2-W w.r.t. power domains, so reuse the
definitions from the latter.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The Renesas R-Car System Controller provides power management for the
CPU cores and various coprocessors, following the generic PM domain
bindings in Documentation/devicetree/bindings/power/power_domain.txt.
This supports R-Car Gen1 (H1), Gen2, and Gen3.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers
Rockchip soc-specific driver changes containing support for the
rk3399 powerdomains and necessary infrastructure changes to
accomodate them - like supporting nested powerdomains here.
* tag 'v4.7-rockchip-drivers-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
soc: rockchip: power-domain: check the existing of regmap
soc: rockchip: power-domain: Modify power domain driver for rk3399
dt-bindings: add binding for rk3399 power domains
dt-bindings: add power-domain header for RK3399 SoCs
soc: rockchip: power-domain: add support for sub-power domains
soc: rockchip: power-domain: allow domains only handling idle requests
soc: rockchip: power-domain: make idle handling optional
Signed-off-by: Olof Johansson <olof@lixom.net>
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