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| author |   Peng Fan <peng.fan@nxp.com> | 2023-07-24 15:58:27 +0800 |
|---|---|---|
| committer |   Shawn Guo <shawnguo@kernel.org> | 2023-07-30 21:19:02 +0800 |
| commit | db2c35aa68efba93333de3500c607382f0d0d679 (patch) | |
| tree | a09f4c8d3dff69c58e0e6ab806a95e41a6abcb71 | |
| parent | arm64: dts: imx8ulp: add thermal node (diff) | |
| download | wireguard-linux-db2c35aa68efba93333de3500c607382f0d0d679.tar.xz wireguard-linux-db2c35aa68efba93333de3500c607382f0d0d679.zip | |
arm64: dts: imx8ulp: add cpuidle node
Add cpuidle node and enable cpuidle for dual cores. The HW mode in
Arm Trusted Firmware is SoC Application Power Domain Sleep mode.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi index 8891b4dc3bea..17cbe526a5b0 100644 --- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi @@ -40,6 +40,7 @@ reg = <0x0 0x0>; enable-method = "psci"; next-level-cache = <&A35_L2>; + cpu-idle-states = <&cpu_sleep>; }; A35_1: cpu@1 { @@ -48,6 +49,7 @@ reg = <0x0 0x1>; enable-method = "psci"; next-level-cache = <&A35_L2>; + cpu-idle-states = <&cpu_sleep>; }; A35_L2: l2-cache0 { @@ -55,6 +57,19 @@ cache-level = <2>; cache-unified; }; + + idle-states { + entry-method = "psci"; + + cpu_sleep: cpu-sleep { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x0>; + local-timer-stop; + entry-latency-us = <1000>; + exit-latency-us = <700>; + min-residency-us = <2700>; + }; + }; }; gic: interrupt-controller@2d400000 { |