lkml.org 
[lkml]   [2017]   [Oct]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] arm64: dts: mediatek: Add cpuidle support for MT2712
From
Date


On 08/31/2017 07:44 AM, James Liao wrote:
> Add CPU idle state nodes to enable C1/C2 idle states.
>
> Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
> ---

pushed to v4.14-next/dts64

Thanks.

> This patch bases on latest Matthias v4.13-next/dts64 branch [1],
> add CPU idle states for MT2712.
>
> [1] https://github.com/mbgg/linux-mediatek.git
>
> arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 25 +++++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
> index 57d0396..5d4e406 100644
> --- a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
> @@ -39,6 +39,7 @@
> device_type = "cpu";
> compatible = "arm,cortex-a35";
> reg = <0x000>;
> + cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
> };
>
> cpu1: cpu@1 {
> @@ -46,6 +47,7 @@
> compatible = "arm,cortex-a35";
> reg = <0x001>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
> };
>
> cpu2: cpu@200 {
> @@ -53,6 +55,29 @@
> compatible = "arm,cortex-a72";
> reg = <0x200>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
> + };
> +
> + idle-states {
> + entry-method = "arm,psci";
> +
> + CPU_SLEEP_0: cpu-sleep-0 {
> + compatible = "arm,idle-state";
> + local-timer-stop;
> + entry-latency-us = <100>;
> + exit-latency-us = <80>;
> + min-residency-us = <2000>;
> + arm,psci-suspend-param = <0x0010000>;
> + };
> +
> + CLUSTER_SLEEP_0: cluster-sleep-0 {
> + compatible = "arm,idle-state";
> + local-timer-stop;
> + entry-latency-us = <350>;
> + exit-latency-us = <80>;
> + min-residency-us = <3000>;
> + arm,psci-suspend-param = <0x1010000>;
> + };
> };
> };
>
>

\
 
 \ /
  Last update: 2017-10-10 19:05    [W:0.044 / U:0.280 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site