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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2015-02-04 15:44:15 +0100 |
|---|---|---|
| committer | Kukjin Kim <kgene@kernel.org> | 2015-02-26 21:26:57 +0100 |
| commit | 0f7807518fe172353622700123615ae19701e693 (patch) | |
| tree | 30e319a6047556d6a18cede62e71fb76cc26abb5 /Documentation | |
| parent | dt-bindings: document a note about power domain subdomains (diff) | |
| download | linux-0f7807518fe172353622700123615ae19701e693.tar.xz linux-0f7807518fe172353622700123615ae19701e693.zip | |
ARM: EXYNOS: add support for sub-power domains
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 <amit.daniel@samsung.com>.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/exynos/power_domain.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt index f4445e5a2bbb..1e097037349c 100644 --- a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt +++ b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt @@ -22,6 +22,8 @@ Optional Properties: - pclkN, clkN: Pairs of parent of input clock and input clock to the devices in this power domain. Maximum of 4 pairs (N = 0 to 3) are supported currently. +- power-domains: phandle pointing to the parent power domain, for more details + see Documentation/devicetree/bindings/power/power_domain.txt Node of a device using power domains must have a power-domains property defined with a phandle to respective power domain. |