| Message ID | 1504158240-12639-1-git-send-email-jamesjj.liao@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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>; > + }; > }; > }; > >
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>; + }; }; };
Add CPU idle state nodes to enable C1/C2 idle states. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> --- 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(+)