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charset="utf-8" From: Peng Fan 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 Signed-off-by: Peng Fan --- arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/d= ts/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 @@ A35_0: cpu@0 { reg =3D <0x0 0x0>; enable-method =3D "psci"; next-level-cache =3D <&A35_L2>; + cpu-idle-states =3D <&cpu_sleep>; }; =20 A35_1: cpu@1 { @@ -48,6 +49,7 @@ A35_1: cpu@1 { reg =3D <0x0 0x1>; enable-method =3D "psci"; next-level-cache =3D <&A35_L2>; + cpu-idle-states =3D <&cpu_sleep>; }; =20 A35_L2: l2-cache0 { @@ -55,6 +57,19 @@ A35_L2: l2-cache0 { cache-level =3D <2>; cache-unified; }; + + idle-states { + entry-method =3D "psci"; + + cpu_sleep: cpu-sleep { + compatible =3D "arm,idle-state"; + arm,psci-suspend-param =3D <0x0>; + local-timer-stop; + entry-latency-us =3D <1000>; + exit-latency-us =3D <700>; + min-residency-us =3D <2700>; + }; + }; }; =20 gic: interrupt-controller@2d400000 { --=20 2.37.1