commit 645b23da6f8b47f295fa87051335d41d139717a5 upstream.

1 GHz CPU OPP is the default boot value for the Exynos5250 SOC, so mark it
as suspend OPP. This fixes suspend/resume on Samsung Exynos5250 Snow
Chomebook, which was broken since switching to generic cpufreq-dt driver
in v4.3.

Cc: <stable@vger.kernel.org> # 4.3.x: cd6f5545: ARM: dts: exynos: Remove "cooling-{min|max}-level" for CPU nodes
Cc: <stable@vger.kernel.org> # 4.3.x: 672f3319: arm: dts: exynos: Add missing cooling device properties for CPUs
Cc: <stable@vger.kernel.org> # 4.3.x
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com>
Acked-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

commit eb9e16d8573e243f8175647f851eb5085dbe97a4 upstream.

Convert Exynos5250 to OPP-v2 bindings. This is a preparation to add proper
support for suspend operation point, which cannot be marked in opp-v1.

Cc: <stable@vger.kernel.org> # 4.3.x: cd6f5545: ARM: dts: exynos: Remove "cooling-{min|max}-level" for CPU nodes
Cc: <stable@vger.kernel.org> # 4.3.x: 672f3319: arm: dts: exynos: Add missing cooling device properties for CPUs
Cc: <stable@vger.kernel.org> # 4.3.x
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com>
Acked-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove no longer needed samsung thermal properties.

There should be no functional changes caused by this patch.
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

The cooling device properties, like "#cooling-cells" and
"dynamic-power-coefficient", should either be present for all the CPUs
of a cluster or none. If these are present only for a subset of CPUs of
a cluster then things will start falling apart as soon as the CPUs are
brought online in a different order. For example, this will happen
because the operating system looks for such properties in the CPU node
it is trying to bring up, so that it can register a cooling device.

Add such missing properties.

Fix other missing properties (clocks, OPP, clock latency) as well to
make it all work.
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Improve the DTS files by removing all the leading "0x" and zeros to fix the
following dtc warnings:

    Warning (unit_address_format): Node /XXX unit name should not have leading "0x"
    Warning (unit_address_format): Node /XXX unit name should not have leading 0s

Converted using the following command:

    find arch/arm/boot/dts -type f \( -iname "*.dts" -o -iname "*.dtsi" \) -exec sed -i \
    -e "s/@\([0-9a-fA-FxX\.;:#]\+\)\s*{/@\L\1 {/g" -e "s/@0x\(.*\) {/@\1 \
    {/g" -e "s/@0\+\(.\+\) {/@\1 {/g" {} +

For simplicity, two sed expressions were used to solve each warnings separately.

To make the regex expression more robust a few other issues were resolved,
namely setting unit-address to lower case, and adding a whitespace before the
the opening curly brace: https://elinux.org/Device_Tree_Linux#Linux_conventions

This will solve also a side effect warning:

    Warning (simple_bus_reg): Node /XXX@<UPPER> simple-bus unit address format error, expected "<lower>"

This is a follow up to commit 4c9847b7 ("dt-bindings: Remove leading 0x from bindings notation")
Reported-by: NDavid Daney <ddaney@caviumnetworks.com>
Suggested-by: NRob Herring <robh@kernel.org>
Signed-off-by: NMathieu Malaterre <malat@debian.org>
[krzk: Rerun the command to include few more changes, adjust the commit msg]
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

The PMU node is the actual block responsible for power management,
including typical Exynos on/off/restart procedures.  Therefore the
syscon poweroff and restart nodes logically belong to it.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Tested-by: NMarek Szyprowski <m.szyprowski@samsung.com>

Handling of special clock operations on power domain on/off sequences
has been moved to respective Exynos clock controller drivers and clock
properties have been marked as deprecated. Remove all clock properties
from existing Exynos power domain nodes, as they are no longer used.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

The #sound-dai-cells property may be required to reference the CPU DAI
properly. This change is required for Snow HDMI audio.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reported-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

This patch adds new cpu, codec subnodes according to the updated
"google,snow-audio-max98095" DT bindings and the I2S clock tree
configuration so sound on the HDMI interface can also be supported.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

This property is required for specifying link between the HDMI IP block
and the SoC's audio subsystem.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

The proper name for the property, which assign given device to IOMMU is
'iommus', not 'iommu'. Fix incorrect name and let all GScaler devices
to be properly handled when IOMMU support is enabled.
Reported-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Fixes: 6cbfdd73 ("ARM: dts: add sysmmu nodes for exynos5250")
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

The "cooling-min-level" and "cooling-max-level" properties are not
parsed by any part of the kernel currently and the max cooling state of
a CPU cooling device is found by referring to the cpufreq table instead.

Remove the unused properties from the CPU nodes.
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Replace GPL v2.0 license statements with SPDX license identifiers.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Convert all hex addresses in node unit addresses to lower case to fix warnings
like:
    arch/arm/boot/dts/exynos5422-odroidhc1.dtb: Warning (simple_bus_reg):
      Node /soc/nocp@10CA1000 simple-bus unit address format error, expected "10ca1000"

Conversion was done using sed:

    $ sed -e 's/@\([a-zA-Z0-9_-]*\) {/@\L\1 {/' -i arch/arm/boot/dts/exynos*.dts*
Suggested-by: NRob Herring <robh@kernel.org>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Add nodes for the True Random Number Generator found in Samsung Exynos
5250+ SoCs.
Signed-off-by: NŁukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Add nodes for Pseudo Random Number Generator in dts files describing
Exynos5 chips.
Signed-off-by: NŁukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Add support for G3D power domain, which contains ARM Mali-600MP
graphics accelerator device (not yet instantiated).
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Audio power domain includes following hardware modules: Pin controller
for GPZ bank, AudioSS clock controller and three Exynos I2S controller.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Device nodes in device tree should use generic names, so rename
all existing domains to "power-domain".
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Current the node is only defined in the exynos5250 DT, while
the corresponding SYSMMUs are also to be found in the exynos5420
DT. Move the node to exynos5 and only setup the SYSMMUs in the
corresponding DT.

Disable the node by default, since exynos5410 also includes
the dtsi, but currently does not define the G2D clock.
Tested-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NTobias Jakobi <tjakobi@math.uni-bielefeld.de>
[mszyprow: rephrased commit message]
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Move Security Subsystem nodes common for Exynos5250 and Exynos54xx
to exynos5.dtsi to avoid duplication.
Signed-off-by: NŁukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Fix dtc warnings for 'simple_bus_reg' due to leading 0s. Converted using
the following command:

perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find arch/arm/boot/dts -type -f -name '*.dts*'

Dropped changes to ARM, Ltd. boards LED nodes and manually fixed up some
occurrences of uppercase hex.
Signed-off-by: NRob Herring <robh@kernel.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

HDMI support requires some additional off-SoC logic, so HDMI and Mixer
devices should be disabled by default in SoC dtsi and enabled then
in each board dts. This patch unifies HDMI and Mixer handling with other
Exynos SoCs.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

All Exynos 5250 SoCs have HDMI PHY connected via dedicated I2C bus (bus
number 8), so HDMI PHY should be defined in exynos5250.dtsi instead of
duplicating it in every board, which enables HDMI support.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Exynos 5250 and 5420 have different hardware rotation limits. However,
currently it uses only one compatible - "exynos5-gsc". Since we have
to distinguish between these two, we add different compatible.
Signed-off-by: NHoegeun Kwon <hoegeun.kwon@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Replace hard-coded values of type of GIC interrupt and its flags with
respective macros from header to increase code readability.
Suggested-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Exynos5250 and Exynos542x SoCs have the same CEC hardware module as
Exynos4 SoC series, so enable support for it using the same compatible
string.

Tested on Odroid XU3 (Exynos5422) and Google Snow (Exynos5250) boards.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Provide human readable names for all power domains defined in Exynos SoCs.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

UART modules can use DMA for offloading data transfers and reducing
interrupts, so enable this feature for Exynos5 boards. Tested on
Google ChromeBook Snow (Exynos5250), Odroid XU (Exynos5410) and Odroid
XU3 (Exynos5422) boards.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Tested-by: NAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Replace hard-coded values of type of GIC interrupt and its flags with
respective macros from header to increase code readability.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Tested-by: NJavier Martinez Canillas <javier@osg.samsung.com>

Interrupt of type IRQ_TYPE_NONE is not allowed for GIC interrupts and
generates an error:
	genirq: Setting trigger mode 0 for irq 16 failed (gic_set_type+0x0/0x68)

The GIC requires shared interrupts to be edge rising or level high.
Platform declares support for both.  Arbitrarily choose level high
everywhere hoping it will work on each platform.
Reported-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Reported-by: NAlban Browaeys <alban.browaeys@gmail.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: NAlim Akhtar <alim.akhtar@samsung.com>

The conventions is to put SoC devices under 'soc' node. In fact other
our DTSes (like exynos3250.dtsi or exynos5410.dtsi) already follow it.
Adjust exynos5250 and exynos5420 DTSI to follow this convention. This is
also necessary for the upcoming change in exynos5410.dtsi to inherit
from common exynos5.dtsi.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Tested-by: NJavier Martinez Canillas <javier@osg.samsung.com>

Exynos5420 and Exynos5250 share some nodes: the PWM, syscon
(sysreg_system_controller) and first four I2C controllers. Move them to
parent DTSI to avoid duplication.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Tested-by: NJavier Martinez Canillas <javier@osg.samsung.com>

Fix following DTC warnings in all Exynos5250 boards:

Warning (unit_address_vs_reg): Node /dp-controller@145B0000/display-timings/timing@0 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /usb@12000000 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /usb@12000000/dwc3 has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): Node /hdmi has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): Node /mixer has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): Node /video-phy@10040720 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /fixed-regulator@0 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /fixed-regulator@1 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /fixed-regulator@2 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /i2c@12C70000/trackpad has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): Node /i2c@12CD0000/lvds-bridge@20/ports/port@0 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /i2c@12CD0000/lvds-bridge@20/ports/port@1 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /i2c-arbitrator/i2c@0/embedded-controller has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): Node /i2c-arbitrator/i2c@0/power-regulator has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): Node /i2c@12CA0000/embedded-controller has a reg or ranges property, but no unit name
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

The compatible string "simple-bus" is well defined in ePAPR, while
I see no documentation for the "arm,amba-bus" arnywhere in ePAPR or
Documentation/devicetree/.

DT is also used by other projects than Linux kernel.  It is not a
good idea to rely on such an unofficial binding.

This commit
  - replaces "arm,amba-bus" with "simple-bus"
  - drops "arm,amba-bus" where it is used along with "simple-bus"
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The s5p-sss crypto HW acceleration driver supports only AES algorithms
thus it accesses only registers from feeder (offset 0x0, length 0x100)
and AES (offset 0x200, length 0x100) blocks of Security SubSystem (SSS).

The exynos-rng Pseudo Random Number Generator driver accesses only PRNG
block at offset 0x400 (length 0x100).

Narrow the size of memory mapped by s5p-sss driver so both drivers can
be loaded at the same time.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>

This patch adds device node for Rotator device to Exynos 5250 device
tree file.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

Adds to the node of the DISP1 power domain the two clocks that need to
be reparented while the domain is powered off:
CLK_MOUT_ACLK200_DISP1_SUB and CLK_MOUT_ACLK300_DISP1_SUB.

Otherwise the state is unknown at power up and the mixer's clocks are
all messed up.
Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://lkml.kernel.org/g/561CDC33.7050103@collabora.comSigned-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

For Exynos5250 platforms, add CPU operating points and CPU regulator
supply properties for migrating from Exynos specific cpufreq driver
to using generic cpufreq driver.

Cc: Doug Anderson <dianders@chromium.org>
Cc: Andreas Faerber <afaerber@suse.de>
Signed-off-by: NThomas Abraham <thomas.ab@samsung.com>
[b.zolnierkie: split Exynos5250 support from the original patch]
[b.zolnierkie: added CPU regulator supply property for Spring boards]
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@dowhile0.org>
Tested-by: NJavier Martinez Canillas <javier@dowhile0.org>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

The dtc compiler combines all the defined nodes that have the same path
so a device node definition can be in one file and later be extended in
another one.

That's the case of the Exynos5250 pinctrl device nodes that are defined
in the exynos5250.dtsi file and extended in exynos5250-pinctrl.dtsi.

But since the exynos5250.dtsi file includes the exynos5250-pinctrl.dtsi
before the pinctrl device nodes are actually defined, the definition of
the pinctrl device nodes happens in exynos5250-pinctrl.dtsi and are
extended in exynos5250.dtsi.

That is the opposite of the original intention so even when there is no
difference in practice, the exynos5250-pinctrl.dtsi include should be
moved at the end of the exynos5250.dtsi file after the pinctrl device
nodes have been already defined.

This will also allow to later change the exynos5250-pinctrl.dtsi file
to use labels instead of full paths to extend the pinctrl nodes. Since
keeping the include at the top, would cause a dtc build error due the
pinctrl labels not being defined yet.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>