| Message ID | 20190221072150.4395-6-josephl@nvidia.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add CPUidle support for Tegra210 | expand |
On 21/02/2019 08:21, Joseph Lo wrote: > Add idle states properties for generic ARM CPU idle driver. This > includes a cpu-sleep state which is the power down state of CPU cores. > > Signed-off-by: Joseph Lo <josephl@nvidia.com> > Acked-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> > --- > v7: > * s/C7/CPU_SLEEP/ & s/c7/cpu-sleep/ > * update the timing of 'entry/exit-latency-us' > v6: > * add ack tag from Jon. > v5: > * no change > v4: > * no change > v3: > * no change > v2: > * add entry-latency-us and exit-latency-us properties > --- > arch/arm64/boot/dts/nvidia/tegra210.dtsi | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi > index abbb686bd8ba..79cedd36ffad 100644 > --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi > +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi > @@ -1371,24 +1371,43 @@ > <&dfll>; > clock-names = "cpu_g", "pll_x", "pll_p", "dfll"; > clock-latency = <300000>; > + cpu-idle-states = <&CPU_SLEEP>; > }; > > cpu@1 { > device_type = "cpu"; > compatible = "arm,cortex-a57"; > reg = <1>; > + cpu-idle-states = <&CPU_SLEEP>; > }; > > cpu@2 { > device_type = "cpu"; > compatible = "arm,cortex-a57"; > reg = <2>; > + cpu-idle-states = <&CPU_SLEEP>; > }; > > cpu@3 { > device_type = "cpu"; > compatible = "arm,cortex-a57"; > reg = <3>; > + cpu-idle-states = <&CPU_SLEEP>; > + }; > + > + idle-states { > + entry-method = "psci"; > + > + CPU_SLEEP: cpu-sleep { > + compatible = "arm,idle-state"; > + arm,psci-suspend-param = <0x40000007>; > + entry-latency-us = <100>; > + exit-latency-us = <30>; > + min-residency-us = <1000>; > + wakeup-latency-us = <130>; > + idle-state-name = "cpu-sleep"; > + status = "disabled"; > + }; > }; > }; > >
diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi index abbb686bd8ba..79cedd36ffad 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi @@ -1371,24 +1371,43 @@ <&dfll>; clock-names = "cpu_g", "pll_x", "pll_p", "dfll"; clock-latency = <300000>; + cpu-idle-states = <&CPU_SLEEP>; }; cpu@1 { device_type = "cpu"; compatible = "arm,cortex-a57"; reg = <1>; + cpu-idle-states = <&CPU_SLEEP>; }; cpu@2 { device_type = "cpu"; compatible = "arm,cortex-a57"; reg = <2>; + cpu-idle-states = <&CPU_SLEEP>; }; cpu@3 { device_type = "cpu"; compatible = "arm,cortex-a57"; reg = <3>; + cpu-idle-states = <&CPU_SLEEP>; + }; + + idle-states { + entry-method = "psci"; + + CPU_SLEEP: cpu-sleep { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x40000007>; + entry-latency-us = <100>; + exit-latency-us = <30>; + min-residency-us = <1000>; + wakeup-latency-us = <130>; + idle-state-name = "cpu-sleep"; + status = "disabled"; + }; }; };