On Mon, Nov 30, 2015 at 09:41:58PM +0800, Jisheng Zhang wrote:
> This patch adds an idle-states node to describe the berlin4ct idle
> states and also adds references to the idle-states node in all CPU
> nodes. After this patch cpuidle is enabled.
>
> Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/marvell/berlin4ct.dtsi | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
>
> diff --git a/arch/arm64/boot/dts/marvell/berlin4ct.dtsi b/arch/arm64/boot/dts/marvell/berlin4ct.dtsi
> index 39d0676..3649cea 100644
> --- a/arch/arm64/boot/dts/marvell/berlin4ct.dtsi
> +++ b/arch/arm64/boot/dts/marvell/berlin4ct.dtsi
> @@ -69,6 +69,7 @@
> device_type = "cpu";
> reg = <0x0>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_SLEEP_0>;
> };
>
> cpu1: cpu@1 {
> @@ -76,6 +77,7 @@
> device_type = "cpu";
> reg = <0x1>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_SLEEP_0>;
> };
>
> cpu2: cpu@2 {
> @@ -83,6 +85,7 @@
> device_type = "cpu";
> reg = <0x2>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_SLEEP_0>;
> };
>
> cpu3: cpu@3 {
> @@ -90,6 +93,19 @@
> device_type = "cpu";
> reg = <0x3>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_SLEEP_0>;
> + };
> +
> + idle-states {
> + entry-method = "psci";
> + CPU_SLEEP_0: cpu-sleep-0 {
> + compatible = "arm,idle-state";
> + local-timer-stop;
> + arm,psci-suspend-param = <0x0010000>;
> + entry-latency-us = <75>;
> + exit-latency-us = <155>;
> + min-residency-us = <1000>;
> + };
> };
> };
>
> --
> 2.6.2
>
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