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| author | Joseph Lo <josephl@nvidia.com> | 2019-02-21 10:21:47 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2019-04-12 18:21:48 +0300 |
| commit | da77c6d92bf7c8815b143cc271c7f0b8af6aa15b (patch) | |
| tree | 734212986c78acb3ded7c5c6b4f3a8f5f8ce5519 /arch/arm64/boot | |
| parent | d9931a1869fbd9d59bee30ef49d2356b468cdf47 (diff) | |
| download | linux-da77c6d92bf7c8815b143cc271c7f0b8af6aa15b.tar.xz | |
arm64: tegra: Add CPU idle states properties for Tegra210
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>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/nvidia/tegra210.dtsi | 19 |
1 files changed, 19 insertions, 0 deletions
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"; + }; }; }; |