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| author | James Liao <jamesjj.liao@mediatek.com> | 2017-10-06 16:09:53 +0800 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2017-10-10 19:04:08 +0200 |
| commit | f5a3d7837aa5fe619042694a3b0911243b8acc7f (patch) | |
| tree | 3c61c8caa0922d00b8dfab9ce103ddb3bf430141 /arch/arm64/boot/dts | |
| parent | 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e (diff) | |
| download | linux-f5a3d7837aa5fe619042694a3b0911243b8acc7f.tar.gz linux-f5a3d7837aa5fe619042694a3b0911243b8acc7f.tar.bz2 linux-f5a3d7837aa5fe619042694a3b0911243b8acc7f.zip | |
arm64: dts: mediatek: Add cpuidle support for MT2712
Add CPU idle state nodes to enable C1/C2 idle states.
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'arch/arm64/boot/dts')
| -rw-r--r-- | arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi index 57d0396b7faa..5d4e406bb35d 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>; + }; }; }; |