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arm64: tegra: Add CPU idle states properties for Tegra210

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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>
This commit is contained in:
Joseph Lo 2019-02-21 15:21:47 +08:00 committed by Thierry Reding
parent d9931a1869
commit da77c6d92b
1 changed files with 19 additions and 0 deletions
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19
arch/arm64/boot/dts/nvidia/tegra210.dtsi
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@ -1371,24 +1371,43 @@ cpu@0 {
<&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";
};
};
};