Merge tag 'samsung-drivers-soc-pm-domains-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

Pull "soc: samsung: pm_domains for v4.11" from Krzysztof Kozłowski:

Improve the PM domains driver for Exynos by displaying a user-friendly name of
power domain.  Till now, the name of node from DT was used which mostly is just
"power-domain".  We need more than that.

* tag 'samsung-drivers-soc-pm-domains-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  soc: samsung: pm_domains: Read domain name from the new label property
  soc: samsung: pm_domains: Remove message about failed memory allocation
  soc: samsung: pm_domains: Remove unused name field
  soc: samsung: pm_domains: Use full names in subdomains registration log

Pull "Reset controller changes for v4.11, part 2" from Philipp Zabel:

- Fix missing NULL check in reset_control_put for optional reset control
  conversion
- Make zx2967 driver explicitly non-modular

* tag 'reset-for-4.11-2' of git://git.pengutronix.de/pza/linux:
  reset: make zx2967 explicitly non-modular
  reset: core: fix reset_control_put

The Kconfig currently controlling compilation of this code is:

   config RESET_ZX2967
          bool "ZTE ZX2967 Reset Driver

...meaning that it currently is not being built as a module by anyone.

Lets remove the couple traces of modular infrastructure use, so that
when reading the driver there is no doubt it is builtin-only.

Since builtin_platform_driver() was already in use, the init ordering
remains unchanged with this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

We don't replace module.h with init.h since the file does not appear
to use __init prefix anywhere.

Cc: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Reviewed-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Commit "reset: make optional functions really optional" missed to
adjust one check in reset_control_put, causing a NULL pointer
access for optional resets.

Fixes: bb475230

 "reset: make optional functions really optional"
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Device tree nodes for each power domain should use generic "power-domain"
name, so using it as a domain name doesn't give much benefits. This patch
adds support for human readable names defined in 'label' property. Such
names are visible to userspace and makes debugging much easier. When no
'label' property is found, driver keeps using the name constructed from
full node name.

Suggested-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Memory subsystem already prints message about failed memory
allocation, there is no need to do it in the drivers.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Name is now in generic pm domain structure, so there is no need to
duplicate it in private data.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Device tree none name for each power domain should be "power-domain", so
use a bit more descriptive full node name in messages about subdomain
registration. This way the following meaningless message:

power-domain has as child subdomain: power-domain.

is changed to a bit more meaningful one:

/soc/power-domain@105c40a0 has as child subdomain: /soc/power-domain@105c4020.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Merge tag 'samsung-drivers-soc-pmu-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

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

* tag 'samsung-drivers-soc-pmu-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux

:
  soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register
  soc: samsung: pmu: Remove unused and duplicated defines
  soc: samsung: pm_domains: Add new Exynos5433 compatible
  soc: samsung: pmu: Add dummy support for Exynos5433 SoC

Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'zte-pd-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/drivers

ZTE PM domain driver support for 4.11:
 - It includes a series which adds DT bindings and PM domain driver for
   PCU (Power Control Unit) block found on ZTE ZX2967 family SoC.

* tag 'zte-pd-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux

:
  soc: zte: pm_domains: Add support for zx296718
  soc: zte: pm_domains: Prepare for supporting ARMv8 zx2967 family
  soc: zte: Add header for PM domains specifiers
  MAINTAINERS: add zx2967 SoC drivers to ARM ZTE architecture
  dt-bindings: zte: add bindings document for zx2967 power domain controller

Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'at91-ab-4.11-drivers2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/drivers

Drivers for 4.11 #2:

 - more EBI fixes

* tag 'at91-ab-4.11-drivers2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

:
  memory: atmel-ebi: Enable the SMC clock if specified
  memory: atmel-ebi: Properly handle multiple reference to the same CS
  memory: atmel-ebi: Fix the test to enable generic SMC logic

Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'tegra-for-4.11-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

memory: tegra: Changes for v4.11-rc1

This contains a single commit that plugs a potential device node leak in
error handling code.

* tag 'tegra-for-4.11-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux

:
  memory: tegra: Add a missing 'of_node_put()' call

Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'omap-for-v4.11/drivers-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers

Just a single wkup_m3_ipc clean-up for v4.11 merge window.
We don't currently have anything else for drivers/soc to
merge, but I'd expect that to change as soon as we can start
moving PM code into drivers with the recently posted SRAM
changes. Anyways, sent as a separate pull request to make
it easy to group the ARM SoC pull requests.

* tag 'omap-for-v4.11/drivers-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap

:
  soc: ti: wkup_m3_ipc: Drop wait from wkup_m3_rproc_boot_thread

Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'qcom-drivers-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers

Qualcomm ARM Based Driver Updates for v4.11

* Fix issues with SCM compile testing
* Add SCM set remote state API
* Mask APQ8064 SCM clock dependency issue
* Add Qualcomm DMA folder to MAINTAINERS
* Fix EBI2 dependencies

* tag 'qcom-drivers-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux

:
  firmware: qcom_scm: Add set remote state API
  MAINTAINERS: Update the files to include the Qualcomm DMA folder
  bus: qcom_ebi2: default y if ARCH_QCOM
  firmware: qcom: scm: Mask APQ8064 core clk dependency
  firmware: qcom: scm: Add empty functions to help compile testing

Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'keystone_soc_for_4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/drivers

Couple of minor cleanups for Navigator drivers for 4.11

* tag 'keystone_soc_for_4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone

:
  soc: ti: knav: cleanup includes and sort header files
  soc: ti: knav_dma: fix typos in trace message

Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'v4.11-armsoc-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers

Some extensions to the power-domain driver to support domains in
hiword registers (write-mask in upper 16bit) and domain-definitions
for the rk3328 soc.

Secondly a "driver" that attaches to the already existing grf nodes
and is able to set static defaults for settings that cannot really
be attached to any specific subsystem.
Most GRF settings can already be set from drivers using them, but there
are some behavioural settings like the mmc/jtag switch that cannot.

As the commit message states this is really meant as a last line
of defence for things that neither belong to a subsystem nor to the

Having this here allows arm64 socs to have this as well and also
moves another bit of code out of the arm32 mach-rockchip.

* tag 'v4.11-armsoc-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip

:
  ARM: rockchip: drop rk3288 jtag/mmc switch handling
  soc: rockchip: add driver handling grf setup
  dt-bindings: add used but undocumented rockchip grf compatible values
  soc: rockchip: power-domain: add power domain support for rk3328
  dt-bindings: add binding for rk3328 power domains
  dt-bindings: power: add RK3328 SoCs header for idle-request
  soc: rockchip: power-domain: Support domain control in hiword-registers

Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'samsung-drivers-soc-pmu-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

Improvements for Exynos PMU driver for v4.11:

Beside basic function of setting proper configuration for low power modes, the
Exynos PMU (Power Management Unit) driver is also a provider of syscon regmap
for its registers.  This regmap is essential to many other drivers wanting to
or needing to implement low power mode.

Exynos pinctrl driver, before getting support for Runtime Power Management,
needs access to this syscon regmap.  Let's do it in a DT ABI friendly way.

* tag 'samsung-drivers-soc-pmu-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux

:
  soc: samsung: pmu: Remove messages for failed memory allocation
  soc: samsung: pmu: Use of_device_get_match_data helper
  soc: samsung: pmu: Provide global function to get PMU regmap

Signed-off-by: Olof Johansson <olof@lixom.net>

Reset controller changes for v4.11

- fix ti_syscon reset_status reporting
- add Hisilicon Hi3660 reset controller driver
- add ZTE ZX2967 reset controller driver
- add LD11 SD-reset block to uniphier reset controller driver
- typo and correctness fixes
- make reset_control_get variants return NULL instead of an
  error for optional, not specified resets and have the other
  reset API functions silently ignore rstc == NULL parameters.

* tag 'reset-for-4.11' of git://git.pengutronix.de/pza/linux

:
  reset: make optional functions really optional
  reset: Change shared flag from int to bool
  reset: uniphier: add compatible string for LD11 SD-reset block
  reset: zx2967: add reset controller driver for ZTE's zx2967 family
  MAINTAINERS: add zx2967 reset controller driver to ARM ZTE architecture
  dt: bindings: add documentation for zx2967 family reset controller
  Documentation: dt: reset: Revise typos in TI syscon reset example
  reset: constify reset_control_ops structures
  reset: hisilicon: add reset-hi3660
  dt-bindings: Document the hi3660 reset bindings
  reset: ti_syscon: fix a ti_syscon_reset_status issue

Signed-off-by: Olof Johansson <olof@lixom.net>

The register ARM_L2_OPTION (0x2608 in Exynos4 and Exynos5 PMU) was
defined twice.  Both names were used in the Exynos542x code.  Simplify
this.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Newer versions of the SMC block requires the SMC clock to be enabled
before the SMC logic can be used.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

The exynos-regs-pmu.h was never a complete list of PMU registers.  It
contained a lot of holes for registers which were not used.  However, a
lot of unused defines came along with porting the code from vendor
kernel.  Few of defines were also duplicated.

Remove them so the file will be slightly smaller.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Some devices are defining several sub-ranges within the same CS iomem
range. In this case, we should not duplicate the EBI device config.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

We should test the apply value and not the ret one here.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: 6a4ec4cd

 ("memory: add Atmel EBI (External Bus Interface) driver")
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

Add a new compatible string for Exynos5433 because it uses the 0xf
value instead of 0x7 for domain on/off registers.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Add compatible for Exynos5433 SoC, so the driver will bind and let other
drivers to use PMU regmap.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

If 'of_find_device_by_node()' fails, an 'of_node_put()' call is missing in
the error handling path.
Fix it by reordering the code.

While at it, remove some empty lines in a more or less similar construction
a few lines below.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Memory subsystem already prints message about failed memory
allocation, there is no need to do it in the driver.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Replace custom code with generic helper to retrieve driver data.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

PMU is something like a SoC wide service, so add a helper function to get
PMU regmap. This will be used by other Exynos device drivers. This way it
can be avoided to model this dependency in device tree (as phandles to PMU
node) for almost every device in the SoC.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

The *_get_optional_* functions weren't really optional so this patch
makes them really optional.

These *_get_optional_* functions will now return NULL instead of an error
if no matching reset phandle is found in the DT, and all the
reset_control_* functions now accept NULL rstc pointers.

Signed-off-by: Ramiro Oliveira <Ramiro.Oliveira@synopsys.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Since the new parameter being added is going to be a bool this patch
changes the shared flag from int to bool to match the new parameter.

Signed-off-by: Ramiro Oliveira <Ramiro.Oliveira@synopsys.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

The LD11 SoC is equipped with not only MIO-reset but also SD-reset
for controlling RST_n pin of the eMMC device.

Update the binding document and remove unneeded "." from each line
in itemization.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

This patch adds reset controller driver for ZTE's zx2967 family.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Reviewed-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Add the zx2967 reset controller driver as maintained by ARM ZTE
architecture maintainers, as they're parts of the core IP.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

This patch adds dt-binding documentation for zx2967 family
reset controller.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Reviewed-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Merge tag 'at91-ab-4.11-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/drivers

Drivers for 4.11:

 - atmel-ebi: Fix ns <-> cycles conversions

* tag 'at91-ab-4.11-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

:
  memory/atmel-ebi: Fix ns <-> cycles conversions

Signed-off-by: Olof Johansson <olof@lixom.net>

This patch adds a set remote state SCM API.  This will be used by the
Venus and GPU subsystems to set state on the remote processors.

This work was based on two patch sets by Jordan Crouse and Stanimir
Varbanov.

Signed-off-by: Andy Gross <andy.gross@linaro.org>

Recently all qcom dma drivers were moved a separate directory. Update
the files to include the same

Signed-off-by: Pramod Gurav <pramod.gurav@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

Since we want this external bus to be available on multi_v7 builds,
set to default ARCH_QCOM so we get it selected whenever QCOM is
enabled.

Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

This patch masks the core clk requirement for the APQ8064.  Until the
other peripherals correctly describe their clock dependencies or the
bus driver is put in place to handle the RPM dependencies, this bit
will remain masked.

Signed-off-by: Andy Gross <andy.gross@linaro.org>