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2015-12-09dt-bindings: Consolidate SRAM bindings from all vendorsKrzysztof Kozlowski1-38/+0
SRAM bindings for various SoCs, using the mmio-sram genalloc API, are spread over different places - per SoC vendor. Since all of these are quite similar (they depend on mmio-sram) move them to a common place. Suggested-by: Rob Herring <[email protected]> Signed-off-by: Krzysztof Kozlowski <[email protected]> Cc: Heiko Stuebner <[email protected]> Cc: Maxime Ripard <[email protected]> Cc: Chen-Yu Tsai <[email protected]> Cc: Kukjin Kim <[email protected]> Acked-by: Maxime Ripard <[email protected]> Acked-by: Heiko Stuebner <[email protected]> Signed-off-by: Rob Herring <[email protected]>
2015-10-24dt-bindings: Consolidate Exynos SoC bindingsKrzysztof Kozlowski1-52/+0
Exynos SoC Device Tree bindings are spread over arm/exynos/ and arm/samsung/ directories. There is no need for that separation and it actually confuses. Put power domain bindings under power/ and remaining samsung-boards.txt under arm/samsung/. Signed-off-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2015-10-24dt-bindings: Correct the example for Exynos power domain clocksKrzysztof Kozlowski1-3/+2
Since commit 29e5eea06bc1 ("ARM: EXYNOS: Get current parent clock for power domain on/off") the "pclkN" names of "clock-names" property is not parsed any more. The bindings and driver were updated but the example was not. Fix the example now. Signed-off-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2015-06-06ARM: EXYNOS: Get current parent clock for power domain on/offKrzysztof Kozlowski1-3/+4
Using a fixed (by DTS) parent for clocks when turning on the power domain may introduce issues in other drivers. For example when such driver changes the parent during runtime and expects that he is the only place of such change. Do not rely on DTS providing the fixed parent for such clocks. Instead before switching domain off, grab a current parent of a clock with clk_get_parent(). Signed-off-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Tested-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2015-04-03Merge tag 'samsung-dt' of ↵Olof Johansson1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt Merge "Samsung DT updates for v4.1" from Kukjin Kim: - for exynos3250 : add assigned clock parents for CMU nodes - for exynos4412-odroid : add eMMC reset line - for exynos5250 : fixed typo for interrupt-cells - for exynos5250-snow : define stdout-path property : represent bridge and panel connection : enable wifi power-on and add cap-sdio-irq to wifi mmc node - for exynos5250-spring : define stdout-path property - for exynos5420 : fixed typo for interrupt-cells : add async-bridge clocks for gsc and disp1 PDs - for exynos5420 boards : Mux XMMCnDATA[0] pad correctly - for exynos5420-odroidxu3 : add eMMC reset line - for Peach boards : add HS400 support and define stdout-path property : add mclk entry and add WiFi module support : represent bridge and panel connection * tag 'samsung-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: dts: Fixed typo interrupt-cells for exynos5420 and exynos5250 ARM: dts: Add HS400 support for exynos5420 and exynos5800 ARM: dts: add async-bridge clocks to gsc power domain for exynos5420 ARM: dts: add async-bridge clocks to disp1 power domain for exynos5420 dt-bindings: add asynchronous bridge clock for exynos ARM: dts: Define stdout-path property for exynos5250-spring ARM: dts: Define stdout-path property for exynos5250-snow ARM: dts: Define stdout-path property for Peach boards ARM: dts: Add assigned clock parents to CMU node for exynos3250 ARM: dts: Add mclk entry for Peach boards ARM: dts: Add WiFi module support for Peach boards ARM: dts: Mux XMMCnDATA[0] pad correctly for Exynos5420 boards ARM: dts: add eMMC reset line for exynos5422-odroidxu3 ARM: dts: add eMMC reset line for exynos4412-odroid-common ARM: dts: represent bridge and panel connection for exynos5420-peach-pit ARM: dts: represent bridge and panel connection for exynos5250-snow ARM: dts: Add cap-sdio-irq to wifi mmc node for exynos5250-snow ARM: dts: Enable wifi power-on for exynos5250-snow Signed-off-by: Olof Johansson <[email protected]>
2015-03-18dt-bindings: add asynchronous bridge clock for exynosAndrzej Hajda1-0/+3
The patch adds bindings for clocks required by async-bridges present in the particular power domain. Signed-off-by: Andrzej Hajda <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Tested-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2015-02-27ARM: EXYNOS: add support for sub-power domainsMarek Szyprowski1-0/+2
This patch adds support for making one power domain a sub-domain of other domain. This is useful for modeling power dependences for devices like TV Mixer or Camera ISP, which needs to have more than one power domain enabled to be operational. Based on previous work by Amit Daniel Kachhap <[email protected]>. Signed-off-by: Marek Szyprowski <[email protected]> Reviewed-by: Ulf Hansson <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2015-01-24ARM: dts: convert to generic power domain bindings for exynos DTMarek Szyprowski1-1/+1
This patch replaces all custom samsung,power-domain dt properties with generic power domain bindings and updates documentation Samsung's devices referring to old binding. Suggested-by: Kevin Hilman <[email protected]> Signed-off-by: Marek Szyprowski <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> [[email protected]: tested on the Exynos5800 Peach Pi Chromebook] Tested-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2014-09-22ARM: exynos: Move to generic PM domain DT bindingsTomasz Figa1-7/+6
This patch moves Exynos PM domain code to use the new generic PM domain look-up framework introduced in previous patches, thus also allowing the new code to be compiled with CONFIG_ARCH_EXYNOS. This patch was originally submitted by Tomasz Figa when he was employed by Samsung. Link: http://marc.info/?l=linux-pm&m=139955336002083&w=2 Signed-off-by: Ulf Hansson <[email protected]> Reviewed-by: Kevin Hilman <[email protected]> Reviewed-by: Dmitry Torokhov <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-07-11ARM: EXYNOS: Add support for clock handling in power domainPrathyush K1-0/+20
While powering on/off a local powerdomain in exynos5 chipsets, the input clocks to each device gets modified. This behaviour is based on the SYSCLK_SYS_PWR_REG registers. E.g. SYSCLK_MFC_SYS_PWR_REG = 0x0, the parent of input clock to MFC (aclk333) gets modified to oscclk = 0x1, no change in clocks. The recommended value of SYSCLK_SYS_PWR_REG before power gating any domain is 0x0. So we must also restore the clocks while powering on a domain everytime. This patch adds the framework for getting the required mux and parent clocks through a power domain device node. With this patch, while powering off a domain, parent is set to oscclk and while powering back on, its re-set to the correct parent which is as per the recommended pd on/off sequence. Signed-off-by: Prathyush K <[email protected]> Signed-off-by: Andrew Bresticker <[email protected]> Signed-off-by: Arun Kumar K <[email protected]> Signed-off-by: Shaik Ameer Basha <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2014-05-15devicetree: bindings: document SYSRAM bindingSachin Kamat1-0/+38
Add SRAM binding documentation. Signed-off-by: Sachin Kamat <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> [[email protected]: changed name SRAM to SYSRAM] Signed-off-by: Kukjin Kim <[email protected]>
2012-11-22ARM: EXYNOS: Bind devices to power domains using DTTomasz Figa1-1/+12
This patch adds a way to specify bindings between devices and power domains using device tree. A device can be bound to particular power domain by adding a power-domain property containing a phandle to the domain. The device will be bound to the domain before binding a driver to it and unbound after unbinding a driver from it. Signed-off-by: Tomasz Figa <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2012-11-22ARM: EXYNOS: Detect power domain state on registration from DTTomasz Figa1-4/+0
Initial state of power domains might vary on different boards and with different bootloaders. This patch adds detection of initial state of power domains when being registered from DT. Signed-off-by: Tomasz Figa <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2012-01-27ARM: EXYNOS: Hook up power domains to generic power domain infrastructureThomas Abraham1-0/+21
Add support for generic power domain for Exynos4 platforms and remove the Samsung specific power domain control for Exynos4. The generic power domain infrastructure is used to control the power domains available on Exynos4. For non-dt platforms, the power domains are statically instantiated. For dt platforms, the power domain nodes found in the device tree are instantiated. Cc: Kyungmin Park <[email protected]> Cc: Rob Herring <[email protected]> Cc: Grant Likely <[email protected]> Signed-off-by: Thomas Abraham <[email protected]> Acked-by: Rafael J. Wysocki <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
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