Exynos7 has core power down state where cores can be powered off independently. This patch adds support for this state. Signed-off-by: Chander Kashyap <k.chander@xxxxxxxxxxx> --- This patch has following dependencies: - [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC http://www.spinics.net/lists/linux-samsung-soc/msg37047.html Changes in v2: - Moved the cpu-idle-state property after reg property - removed the status property. arch/arm64/boot/dts/exynos/exynos7.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi index 50ae936..444dde1 100644 --- a/arch/arm64/boot/dts/exynos/exynos7.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi @@ -37,6 +37,7 @@ compatible = "arm,cortex-a57", "arm,armv8"; enable-method = "psci"; reg = <0x0>; + cpu-idle-states = <&CPU_SLEEP>; }; cpu@1 { @@ -44,6 +45,7 @@ compatible = "arm,cortex-a57", "arm,armv8"; enable-method = "psci"; reg = <0x1>; + cpu-idle-states = <&CPU_SLEEP>; }; cpu@2 { @@ -51,6 +53,7 @@ compatible = "arm,cortex-a57", "arm,armv8"; enable-method = "psci"; reg = <0x2>; + cpu-idle-states = <&CPU_SLEEP>; }; cpu@3 { @@ -58,6 +61,20 @@ compatible = "arm,cortex-a57", "arm,armv8"; enable-method = "psci"; reg = <0x3>; + cpu-idle-states = <&CPU_SLEEP>; + }; + + idle-states { + entry-method = "arm,psci"; + + CPU_SLEEP: cpu-sleep { + compatible = "arm,idle-state"; + local-timer-stop; + arm,psci-suspend-param = <0x0010000>; + entry-latency-us = <20>; + exit-latency-us = <150>; + min-residency-us = <2100>; + }; }; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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