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Signed-off-by: Peng Fan --- arch/arm64/boot/dts/freescale/imx952.dtsi | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx952.dtsi b/arch/arm64/boot/dt= s/freescale/imx952.dtsi index 33bde271d394d19407562f2a427a8a84b85bd679..f1a50896bd4e3e178567ad1f0bf= e4679746b9479 100644 --- a/arch/arm64/boot/dts/freescale/imx952.dtsi +++ b/arch/arm64/boot/dts/freescale/imx952.dtsi @@ -50,12 +50,27 @@ cpus { #address-cells =3D <1>; #size-cells =3D <0>; =20 + idle-states { + entry-method =3D "psci"; + + cpu_pd_wait: cpu-pd-wait { + compatible =3D "arm,idle-state"; + arm,psci-suspend-param =3D <0x0010033>; + local-timer-stop; + entry-latency-us =3D <1000>; + exit-latency-us =3D <700>; + min-residency-us =3D <2700>; + wakeup-latency-us =3D <1500>; + }; + }; + A55_0: cpu@0 { device_type =3D "cpu"; compatible =3D "arm,cortex-a55"; reg =3D <0x0>; enable-method =3D "psci"; #cooling-cells =3D <2>; + cpu-idle-states =3D <&cpu_pd_wait>; power-domains =3D <&scmi_perf IMX952_PERF_A55>; power-domain-names =3D "perf"; i-cache-size =3D <32768>; @@ -73,6 +88,7 @@ A55_1: cpu@100 { reg =3D <0x100>; enable-method =3D "psci"; #cooling-cells =3D <2>; + cpu-idle-states =3D <&cpu_pd_wait>; power-domains =3D <&scmi_perf IMX952_PERF_A55>; power-domain-names =3D "perf"; i-cache-size =3D <32768>; @@ -90,6 +106,7 @@ A55_2: cpu@200 { reg =3D <0x200>; enable-method =3D "psci"; #cooling-cells =3D <2>; + cpu-idle-states =3D <&cpu_pd_wait>; power-domains =3D <&scmi_perf IMX952_PERF_A55>; power-domain-names =3D "perf"; i-cache-size =3D <32768>; @@ -107,6 +124,7 @@ A55_3: cpu@300 { reg =3D <0x300>; enable-method =3D "psci"; #cooling-cells =3D <2>; + cpu-idle-states =3D <&cpu_pd_wait>; power-domains =3D <&scmi_perf IMX952_PERF_A55>; power-domain-names =3D "perf"; i-cache-size =3D <32768>; --=20 2.37.1