| Commit message (Collapse) | Author | Age | Files | Lines |
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Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.
Remove the argument.
Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
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The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
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Search and replace done with coccinelle
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull late ARM SoC updates from Kevin Hilman:
"This is a collection of a few late fixes and other misc stuff that had
dependencies on things being merged from other trees.
The bulk of the changes are for samsung/exynos SoCs for some changes
that needed a few minor reworks so ended up a bit late. The others
are mainly for qcom SoCs: a couple fixes and some DTS updates"
* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
ARM: multi_v7_defconfig: Enable PBIAS regulator
soc: qcom: smd: Correct fBLOCKREADINTR handling
soc: qcom: smd: Use correct remote processor ID
soc: qcom: smem: Fix errant private access
ARM: dts: qcom: msm8974-sony-xperia-honami: Use stdout-path
ARM: dts: qcom: msm8960-cdp: Use stdout-path
ARM: dts: qcom: msm8660-surf: Use stdout-path
ARM: dts: qcom: ipq8064-ap148: Use stdout-path
ARM: dts: qcom: apq8084-mtp: Use stdout-path
ARM: dts: qcom: apq8084-ifc6540: Use stdout-path
ARM: dts: qcom: apq8074-dragonboard: Use stdout-path
ARM: dts: qcom: apq8064-ifc6410: Use stdout-path
ARM: dts: qcom: apq8064-cm-qs600: Use stdout-path
ARM: dts: qcom: Label serial nodes for aliasing and stdout-path
reset: ath79: Fix missing spin_lock_init
reset: Add (devm_)reset_control_get stub functions
ARM: EXYNOS: switch to using generic cpufreq driver for exynos4x12
cpufreq: exynos: Remove unselectable rule for arm-exynos-cpufreq.o
ARM: dts: add iommu property to JPEG device for exynos4
ARM: dts: enable SPI1 for exynos4412-odroidu3
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fBLOCKREADINTR is masking the notification from the remote and should
hence be cleared while we're waiting the tx fifo to drain. Also change
the reset state to mask the notification, as send is the only use case
where we're interested in it.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
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This patch fixes SMEM addressing issues when remote processors need to use
secure SMEM partitions.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
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This patch corrects private partition item access. Instead of falling back to
global for instances where we have an actual host and remote partition existing,
return the results of the private lookup.
Signed-off-by: Andy Gross <agross@codeaurora.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Some releases this branch is nearly empty, others we have more stuff.
It tends to gather drivers that need SoC modification or dependencies
such that they have to (also) go in through our tree.
For this release, we have merged in part of the reset controller tree
(with handshake that the parts we have merged in will remain stable),
as well as dependencies on a few clock branches.
In general, new items here are:
- Qualcomm driver for SMM/SMD, which is how they communicate with the
coprocessors on (some) of their platforms
- memory controller work for ARM's PL172 memory controller
- reset drivers for various platforms
- PMU power domain support for Marvell platforms
- Tegra support for T132/T210 SoCs: PMC, fuse, memory controller
per-SoC support"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (49 commits)
ARM: tegra: cpuidle: implement cpuidle_state.enter_freeze()
ARM: tegra: Disable cpuidle if PSCI is available
soc/tegra: pmc: Use existing pclk reference
soc/tegra: pmc: Remove unnecessary return statement
soc: tegra: Remove redundant $(CONFIG_ARCH_TEGRA) in Makefile
memory: tegra: Add Tegra210 support
memory: tegra: Add support for a variable-size client ID bitfield
clk: shmobile: rz: Add CPG/MSTP Clock Domain support
clk: shmobile: rcar-gen2: Add CPG/MSTP Clock Domain support
clk: shmobile: r8a7779: Add CPG/MSTP Clock Domain support
clk: shmobile: r8a7778: Add CPG/MSTP Clock Domain support
clk: shmobile: Add CPG/MSTP Clock Domain support
ARM: dove: create a proper PMU driver for power domains, PMU IRQs and resets
reset: reset-zynq: Adding support for Xilinx Zynq reset controller.
docs: dts: Added documentation for Xilinx Zynq Reset Controller bindings.
MIPS: ath79: Add the reset controller to the AR9132 dtsi
reset: Add a driver for the reset controller on the AR71XX/AR9XXX
devicetree: Add bindings for the ATH79 reset controller
reset: socfpga: Update reset-socfpga to read the altr,modrst-offset property
doc: dt: add documentation for lpc1850-rgu reset driver
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
ARM: tegra: Core SoC changes for v4.3-rc1
This contains a bit more of Tegra210 support, which is shaping up pretty
nicely. Other than that there are a couple of cleanup patches here, too.
* tag 'tegra-for-4.3-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
ARM: tegra: cpuidle: implement cpuidle_state.enter_freeze()
ARM: tegra: Disable cpuidle if PSCI is available
soc/tegra: pmc: Use existing pclk reference
soc/tegra: pmc: Remove unnecessary return statement
soc: tegra: Remove redundant $(CONFIG_ARCH_TEGRA) in Makefile
soc/tegra: fuse: Add spare bit offset for Tegra210
soc/tegra: fuse: Add spare bit offset for Tegra124
soc/tegra: fuse: Add spare bit offset for Tegra114
soc/tegra: fuse: Rename core_* to soc_*
soc/tegra: fuse: Add Tegra210 support
soc/tegra: fuse: Unify Tegra20 and Tegra30 drivers
soc/tegra: fuse: Restrict legacy code to 32-bit ARM
soc/tegra: pmc: Add Tegra210 support
soc/tegra: pmc: Restrict legacy code to 32-bit ARM
soc/tegra: pmc: Avoid usage of uninitialized variable
soc/tegra: Add Tegra210 support
soc/tegra: Add Tegra132 support
Signed-off-by: Olof Johansson <olof@lixom.net>
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The driver requests the pclk clock at probe time already and stores its
reference to it in struct tegra_pmc, so there is no need to look it up
everytime it is needed. Use the existing reference instead.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Functions returning no value don't need an explicit return statement.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Kbuild descends into drivers/soc/tegra/ only when CONFIG_ARCH_TEGRA
is enabled. (see drivers/soc/Makefile)
$(CONFIG_ARCH_TEGRA) in drivers/soc/tegra/Makefile always evaluates
to 'y'.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The offset of the first spare bit register on Tegra210 is 0x380, but
account for the fixed offset of 0x100 in the fuse accessor.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The offset of the first spare bit register on Tegra124 is 0x300, but
account for the fixed offset of 0x100 in the fuse accessor.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The offset of the first spare bit register on Tegra114 is 0x280, but
account for the fixed offset of 0x100 in the fuse accessor.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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There's a mixture of core_* and soc_* prefixes for variables storing
information related to the VDD_CORE rail. Choose one (soc_*) and use it
more consistently.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add Tegra210 support to the fuses driver and add Tegra210-specific
speedo definitions.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Unifying the drivers makes it easier to restrict the legacy probing
paths to 32-bit ARM. This in turn will come in handy as support for
new 64-bit ARM SoCs is added.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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For backwards-compatibility with old device trees, if no APBMISC node
exists this driver hard-codes the I/O memory region. All 64-bit ARM
device tree files are recent enough that they can be required to have
this node, and therefore the legacy code path is not required.
Based on work done by Paul Walmsley <pwalmsley@nvidia.com>.
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Tegra210 uses a power management controller that is compatible with
earlier SoC generations but adds a couple of power partitions for new
hardware blocks.
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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For backwards-compatibility with old device trees, if no PMC node exists
this driver hard-codes the I/O memory region. All 64-bit ARM device tree
files are recent enough that they can be required to have this node, and
therefore the legacy code path is not required on 64-bit ARM.
Based on work done by Paul Walmsley <pwalmsley@nvidia.com>.
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Make sure to only drop the reference to the OF node after it's been
successfully obtained.
Fixes: 3568df3d31d6 ("soc: tegra: Add thermal reset (thermtrip) support to PMC")
Cc: <stable@vger.kernel.org> # v4.0+
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add Tegra210 to the matching table for NVIDIA Tegra SoCs.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add Tegra132 to the matching table for NVIDIA Tegra SoCs.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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into next/drivers
Qualcomm ARM Based SoC Updates for 4.3
* Add SMEM driver
* Add SMD driver
* Add RPM over SMD driver
* Select QCOM_SCM by default
* tag 'qcom-soc-for-4.3' of git://codeaurora.org/quic/kernel/agross-msm:
devicetree: soc: Add Qualcomm SMD based RPM DT binding
soc: qcom: Driver for the Qualcomm RPM over SMD
soc: qcom: Add Shared Memory Driver
soc: qcom: Add device tree binding for Shared Memory Device
drivers: qcom: Select QCOM_SCM unconditionally for QCOM_PM
soc: qcom: Add Shared Memory Manager driver
Signed-off-by: Olof Johansson <olof@lixom.net>
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Driver for the Resource Power Manager (RPM) found in Qualcomm 8974 based
devices.
The driver exposes resources that child drivers can operate on; to
implementing regulator, clock and bus frequency drivers.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
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This adds the Qualcomm Shared Memory Driver (SMD) providing
communication channels to remote processors, ontop of SMEM.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
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Enable QCOM_SCM for QCOM power management driver
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
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The Shared Memory Manager driver implements an interface for allocating
and accessing items in the memory area shared among all of the
processors in a Qualcomm platform.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
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The PMU device contains an interrupt controller, power control and
resets. The interrupt controller is a little sub-standard in that
there is no race free way to clear down pending interrupts, so we try
to avoid problems by reducing the window as much as possible, and
clearing as infrequently as possible.
The interrupt support is implemented using an IRQ domain, and the
parent interrupt referenced in the standard DT way.
The power domains and reset support is closely related - there is a
defined sequence for powering down a domain which is tightly coupled
with asserting the reset. Hence, it makes sense to group these two
together, and in order to avoid any locking contention disrupting this
sequence, we avoid the use of syscon or regmap.
This patch adds the core PMU driver: power domains must be defined in
the DT file in order to make use of them. The reset controller can
be referenced in the standard way for reset controllers.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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SCPSYS driver misses the module.h include which makes it fail
when compiling with allmodconf.
This patch fixes this.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
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platform_driver does not need to set an owner because
platform_driver_register() will set it.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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This adds a power domain driver for the Mediatek SCPSYS unit.
The System Control Processor System (SCPSYS) has several power
management related tasks in the system. The tasks include thermal
measurement, dynamic voltage frequency scaling (DVFS), interrupt
filter and lowlevel sleep control. The System Power Manager (SPM)
inside the SCPSYS is for the MTCMOS power domain control.
For now this driver only adds power domain support, the more
advanced features are not yet supported. The driver implements
the generic PM domain device tree bindings, the first user will
most likely be the Mediatek AFE audio driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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This adds support for some miscellaneous bits of the infracfg controller.
The mtk_infracfg_set/clear_bus_protection functions are necessary for
the scpsys power domain driver to handle the bus protection bits which
are contained in the infacfg register space.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late fixes and dependencies from Kevin Hilman:
"This is a collection of a few late fixes and other misc stuff that had
dependencies on things being merged from other trees.
Other than the fixes, the primary feature being added is the
conversion of some OMAP drivers to the new generic wakeirq interface"
* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: multi_v7_defconfig: Enable BRCMNAND driver
ARM: BCM: Do not select CONFIG_MTD_NAND_BRCMNAND
ARM: at91/dt: update udc compatible strings
ARM: at91/dt: trivial: fix USB udc compatible string
arm64: dts: Add APM X-Gene standby GPIO controller DTS entries
soc: qcom: spm: Fix idle on THUMB2 kernels
ARM: dove: fix legacy dove IRQ numbers
ARM: mvebu: fix suspend to RAM on big-endian configurations
ARM: mvebu: adjust Armada XP DT spi muxing after pinctrl function rename
serial: 8250_omap: Move wake-up interrupt to generic wakeirq
serial: omap: Switch wake-up interrupt to generic wakeirq
mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq
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The ifc6410 firmware always enters the kernel in ARM state from
deep idle. Use the cpu_resume_arm() wrapper instead of
cpu_resume() to property switch into the THUMB2 state when we
wake up from idle.
This fixes a problem reported by Kevin Hilman on next-20150601
where the ifc6410 fails to boot a THUMB2 kernel because the
platform's firmware always enters the kernel in ARM mode from
deep idle states.
Reported-by: Kevin Hilman <khilman@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Lina Iyer <lina.iyer@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
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ARM: SoC: driver updates for v4.2
Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
Some highlights:
- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses
Conflicts:
arch/arm64/boot/dts/arm/juno-motherboard.dtsi
Trivial add/add conflict with our dt branch.
Resolution: take both sides.
# gpg: Signature made Wed Jun 24 21:32:17 2015 PDT using RSA key ID D3FBC665
# gpg: Good signature from "Kevin Hilman <khilman@deeprootsystems.com>"
# gpg: aka "Kevin Hilman <khilman@linaro.org>"
# gpg: aka "Kevin Hilman <khilman@kernel.org>"
# Conflicts:
# arch/arm64/boot/dts/arm/juno-motherboard.dtsi
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ARM: SoC: platform support for v4.2
Our SoC branch usually contains expanded support for new SoCs and
other core platform code. Some highlights from this round:
- sunxi: SMP support for A23 SoC
- socpga: big-endian support
- pxa: conversion to common clock framework
- bcm: SMP support for BCM63138
- imx: support new I.MX7D SoC
- zte: basic support for ZX296702 SoC
Conflicts:
arch/arm/mach-socfpga/core.h
Trivial remove/remove conflict with our cleanup branch.
Resolution: remove both sides
# gpg: Signature made Wed Jun 24 21:32:12 2015 PDT using RSA key ID D3FBC665
# gpg: Good signature from "Kevin Hilman <khilman@deeprootsystems.com>"
# gpg: aka "Kevin Hilman <khilman@linaro.org>"
# gpg: aka "Kevin Hilman <khilman@kernel.org>"
# Conflicts:
# arch/arm/mach-socfpga/core.h
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git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull module_platform_driver replacement from Paul Gortmaker:
"Replace module_platform_driver with builtin_platform driver in non
modules.
We see an increasing number of non-modular drivers using
modular_driver() type register functions. There are several downsides
to letting this continue unchecked:
- The code can appear modular to a reader of the code, and they won't
know if the code really is modular without checking the Makefile
and Kconfig to see if compilation is governed by a bool or
tristate.
- Coders of drivers may be tempted to code up an __exit function that
is never used, just in order to satisfy the required three args of
the modular registration function.
- Non-modular code ends up including the <module.h> which increases
CPP overhead that they don't need.
- It hinders us from performing better separation of the module init
code and the generic init code.
So here we introduce similar macros for builtin drivers. Then we
convert builtin drivers (controlled by a bool Kconfig) by making the
following type of mapping:
module_platform_driver() ---> builtin_platform_driver()
module_platform_driver_probe() ---> builtin_platform_driver_probe().
The set of drivers that are converted here are just the ones that
showed up as relying on an implicit include of <module.h> during a
pending header cleanup. So we convert them here vs adding an include
of <module.h> to non-modular code to avoid compile fails. Additonal
conversions can be done asynchronously at any time.
Once again, an unused module_exit function that is removed here
appears in the diffstat as an outlier wrt all the other changes"
* tag 'module-builtin_driver-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
drivers/clk: convert sunxi/clk-mod0.c to use builtin_platform_driver
drivers/power: Convert non-modular syscon-reboot to use builtin_platform_driver
drivers/soc: Convert non-modular soc-realview to use builtin_platform_driver
drivers/soc: Convert non-modular tegra/pmc to use builtin_platform_driver
drivers/cpufreq: Convert non-modular s5pv210-cpufreq.c to use builtin_platform_driver
drivers/cpuidle: Convert non-modular drivers to use builtin_platform_driver
drivers/platform: Convert non-modular pdev_bus to use builtin_platform_driver
platform_device: better support builtin boilerplate avoidance
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This file depends on Kconfig SOC_REALVIEW which is a bool, so
we use the appropriate registration function, which avoids us
relying on an implicit inclusion of <module.h> which we are
doing currently.
While this currently works, we really don't want to be including
the module.h header in non-modular code, which we'd be forced
to do, pending some upcoming code relocation from init.h into
module.h. So we fix it now by using the non-modular equivalent.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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This file depends on Kconfig ARCH_TEGRA which is a bool, so
we use the appropriate registration function, which avoids us
relying on an implicit inclusion of <module.h> which we are
doing currently.
While this currently works, we really don't want to be including
the module.h header in non-modular code, which we'd be forced
to do, pending some upcoming code relocation from init.h into
module.h. So we fix it now by using the non-modular equivalent.
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Kevin Hilman:
"Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
Some highlights:
- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
drivers: soc: sunxi: Introduce SoC driver to map SRAMs
arm-cci: Add aliases for PMU events
arm-cci: Add CCI-500 PMU support
arm-cci: Sanitise CCI400 PMU driver specific code
arm-cci: Abstract handling for CCI events
arm-cci: Abstract out the PMU counter details
arm-cci: Cleanup PMU driver code
arm-cci: Do not enable CCI-400 PMU by default
firmware: qcom: scm: Add HDCP Support
ARM: berlin: add an ADC node for the BG2Q
ARM: berlin: remove useless chip and system ctrl compatibles
clk: berlin: drop direct of_iomap of nodes reg property
ARM: berlin: move BG2Q clock node
ARM: berlin: move BG2CD clock node
ARM: berlin: move BG2 clock node
clk: berlin: prepare simple-mfd conversion
pinctrl: berlin: drop SoC stub provided regmap
ARM: berlin: move pinctrl to simple-mfd nodes
pinctrl: berlin: prepare to use regmap provided by syscon
reset: berlin: drop arch_initcall initialization
...
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The Allwinner SoCs have a handful of SRAM that can be either mapped to be
accessible by devices or the CPU.
That mapping is controlled by an SRAM controller, and that mapping might
not be set by the bootloader, for example if the device wasn't used at all,
or if we're using solutions like the U-Boot's Falcon Boot.
We could also imagine changing this at runtime for example to change the
mapping of these SRAMs to use them for suspend/resume or runtime memory
rate change, if that ever happens.
These use cases require some API in the kernel to control that mapping,
exported through a drivers/soc driver.
This driver also implement a debugfs file that shows the SRAM found in the
system, the current mapping and the SRAM that have been claimed by some
drivers in the kernel.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/drivers
Merge "Qualcomm ARM Based SoC Updates for v4.2-1" from Kumar Gala:
* Added Subsystem Power Manager (SPM) driver
* Split out 32-bit specific SCM code
* Added HDCP SCM call
* tag 'qcom-soc-for-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
firmware: qcom: scm: Add HDCP Support
firmware: qcom: scm: Split out 32-bit specific SCM code
ARM: qcom: Add Subsystem Power Manager (SPM) driver
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SPM is a hardware block that controls the peripheral logic surrounding
the application cores (cpu/l$). When the core executes WFI instruction,
the SPM takes over the putting the core in low power state as
configured. The wake up for the SPM is an interrupt at the GIC, which
then completes the rest of low power mode sequence and brings the core
out of low power mode.
The SPM has a set of control registers that configure the SPMs
individually based on the type of the core and the runtime conditions.
SPM is a finite state machine block to which a sequence is provided and
it interprets the bytes and executes them in sequence. Each low power
mode that the core can enter into is provided to the SPM as a sequence.
Configure the SPM to set the core (cpu or L2) into its low power mode,
the index of the first command in the sequence is set in the SPM_CTL
register. When the core executes ARM wfi instruction, it triggers the
SPM state machine to start executing from that index. The SPM state
machine waits until the interrupt occurs and starts executing the rest
of the sequence until it hits the end of the sequence. The end of the
sequence jumps the core out of its low power mode.
Add support for an idle driver to set up the SPM to place the core in
Standby or Standalone power collapse mode when the core is idle.
Based on work by: Mahesh Sivasubramanian <msivasub@codeaurora.org>,
Ai Li <ali@codeaurora.org>, Praveen Chidambaram <pchidamb@codeaurora.org>
Original tree available at -
git://codeaurora.org/quic/la/kernel/msm-3.10.git
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Kumar Gala <galak@codeaurora.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
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next/drivers
Merge "ARM: mediatek: soc updates for v4.2" from Matthias Brugger:
- pmic wrapper: fix clock handling
- pmic wrapper: fix state machine
- pmic wrapper: fix compile dependency
* tag 'v4.1-next-soc' of https://github.com/mbgg/linux-mediatek:
soc: mediatek: Add compile dependency to pmic-wrapper
soc: mediatek: PMIC wrap: Fix register state machine handling
soc: mediatek: PMIC wrap: Fix clock rate handling
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Needed for the EMC and MC drivers to know what timings from the DT to
use.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform support updates from Kevin Hilman:
"Our SoC branch usually contains expanded support for new SoCs and
other core platform code. Some highlights from this round:
- sunxi: SMP support for A23 SoC
- socpga: big-endian support
- pxa: conversion to common clock framework
- bcm: SMP support for BCM63138
- imx: support new I.MX7D SoC
- zte: basic support for ZX296702 SoC"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
ARM: zx: Add basic defconfig support for ZX296702
ARM: dts: zx: add an initial zx296702 dts and doc
clk: zx: add clock support to zx296702
dt-bindings: Add #defines for ZTE ZX296702 clocks
ARM: socfpga: fix build error due to secondary_startup
MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
ARM: ep93xx: simone: support for SPI-based MMC/SD cards
MAINTAINERS: update Shawn's email to use kernel.org one
ARM: socfpga: support suspend to ram
ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
ARM: EXYNOS: register power domain driver from core_initcall
ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
ARM: SAMSUNG: Constify platform_device_id
ARM: EXYNOS: Constify irq_domain_ops
ARM: EXYNOS: add coupled cpuidle support for Exynos3250
ARM: EXYNOS: add exynos_get_boot_addr() helper
ARM: EXYNOS: add exynos_set_boot_addr() helper
ARM: EXYNOS: make exynos_core_restart() less verbose
ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
...
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The pmc driver was previously exporting tegra_pmc_restart, which was
assigned to machine_desc.init_machine, taking precedence over the
restart handlers registered through register_restart_handler().
Signed-off-by: David Riley <davidriley@chromium.org>
[tomeu.vizoso@collabora.com: Rebased]
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
[treding@nvidia.com: minor cleanups]
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The return type of the wait_for_completion_timeout() function is not int
but unsigned long. An appropriately named unsigned long is added and the
assignment fixed up.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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