On 22/12/2020 05:58, James Liao wrote: > Add idle states for cpu-off and cluster-off. > > Signed-off-by: James Liao <jamesjj.liao@xxxxxxxxxxxx> > --- Applied to v5.11-next/dts64 Thanks! > arch/arm64/boot/dts/mediatek/mt8192.dtsi | 44 ++++++++++++++++++++++++ > 1 file changed, 44 insertions(+) > > This patch bases on v5.10 and [1], adds idle-states for MT8192 CPUs. > > [1] https://lore.kernel.org/linux-arm-kernel/20201030092207.26488-2-seiya.wang@xxxxxxxxxxxx/ > > diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi > index e12e024de122..c7f2ec9ea4f1 100644 > --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi > +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi > @@ -39,6 +39,7 @@ > reg = <0x000>; > enable-method = "psci"; > clock-frequency = <1701000000>; > + cpu-idle-states = <&cpuoff_l &clusteroff_l>; > next-level-cache = <&l2_0>; > capacity-dmips-mhz = <530>; > }; > @@ -49,6 +50,7 @@ > reg = <0x100>; > enable-method = "psci"; > clock-frequency = <1701000000>; > + cpu-idle-states = <&cpuoff_l &clusteroff_l>; > next-level-cache = <&l2_0>; > capacity-dmips-mhz = <530>; > }; > @@ -59,6 +61,7 @@ > reg = <0x200>; > enable-method = "psci"; > clock-frequency = <1701000000>; > + cpu-idle-states = <&cpuoff_l &clusteroff_l>; > next-level-cache = <&l2_0>; > capacity-dmips-mhz = <530>; > }; > @@ -69,6 +72,7 @@ > reg = <0x300>; > enable-method = "psci"; > clock-frequency = <1701000000>; > + cpu-idle-states = <&cpuoff_l &clusteroff_l>; > next-level-cache = <&l2_0>; > capacity-dmips-mhz = <530>; > }; > @@ -79,6 +83,7 @@ > reg = <0x400>; > enable-method = "psci"; > clock-frequency = <2171000000>; > + cpu-idle-states = <&cpuoff_b &clusteroff_b>; > next-level-cache = <&l2_1>; > capacity-dmips-mhz = <1024>; > }; > @@ -89,6 +94,7 @@ > reg = <0x500>; > enable-method = "psci"; > clock-frequency = <2171000000>; > + cpu-idle-states = <&cpuoff_b &clusteroff_b>; > next-level-cache = <&l2_1>; > capacity-dmips-mhz = <1024>; > }; > @@ -99,6 +105,7 @@ > reg = <0x600>; > enable-method = "psci"; > clock-frequency = <2171000000>; > + cpu-idle-states = <&cpuoff_b &clusteroff_b>; > next-level-cache = <&l2_1>; > capacity-dmips-mhz = <1024>; > }; > @@ -109,6 +116,7 @@ > reg = <0x700>; > enable-method = "psci"; > clock-frequency = <2171000000>; > + cpu-idle-states = <&cpuoff_b &clusteroff_b>; > next-level-cache = <&l2_1>; > capacity-dmips-mhz = <1024>; > }; > @@ -158,6 +166,42 @@ > l3_0: l3-cache { > compatible = "cache"; > }; > + > + idle-states { > + entry-method = "arm,psci"; > + cpuoff_l: cpuoff_l { > + compatible = "arm,idle-state"; > + arm,psci-suspend-param = <0x00010001>; > + local-timer-stop; > + entry-latency-us = <55>; > + exit-latency-us = <140>; > + min-residency-us = <780>; > + }; > + cpuoff_b: cpuoff_b { > + compatible = "arm,idle-state"; > + arm,psci-suspend-param = <0x00010001>; > + local-timer-stop; > + entry-latency-us = <35>; > + exit-latency-us = <145>; > + min-residency-us = <720>; > + }; > + clusteroff_l: clusteroff_l { > + compatible = "arm,idle-state"; > + arm,psci-suspend-param = <0x01010002>; > + local-timer-stop; > + entry-latency-us = <60>; > + exit-latency-us = <155>; > + min-residency-us = <860>; > + }; > + clusteroff_b: clusteroff_b { > + compatible = "arm,idle-state"; > + arm,psci-suspend-param = <0x01010002>; > + local-timer-stop; > + entry-latency-us = <40>; > + exit-latency-us = <155>; > + min-residency-us = <780>; > + }; > + }; > }; > > pmu-a55 { >
