Add the idle state cpu-sleep to each core. This idle state makes use of 'local-wakeup-poke' property which basically tells the cpuidle-arm driver to enable the poking for this state.
Signed-off-by: Abel Vesa <abel.v...@nxp.com> --- arch/arm64/boot/dts/freescale/imx8mq.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index 230f198..8b7303d 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -84,6 +84,22 @@ #address-cells = <1>; #size-cells = <0>; + idle-states { + entry-method = "psci"; + + CPU_SLEEP: cpu-sleep { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x0010033>; + local-timer-stop; + local-wakeup-poke; + entry-latency-us = <1000>; + exit-latency-us = <700>; + min-residency-us = <2700>; + wakeup-latency-us = <1500>; + }; + }; + + A53_0: cpu@0 { device_type = "cpu"; compatible = "arm,cortex-a53"; @@ -94,6 +110,7 @@ next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; #cooling-cells = <2>; + cpu-idle-states = <&CPU_SLEEP>; }; A53_1: cpu@1 { @@ -106,6 +123,7 @@ next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; #cooling-cells = <2>; + cpu-idle-states = <&CPU_SLEEP>; }; A53_2: cpu@2 { @@ -118,6 +136,7 @@ next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; #cooling-cells = <2>; + cpu-idle-states = <&CPU_SLEEP>; }; A53_3: cpu@3 { @@ -130,6 +149,7 @@ next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; #cooling-cells = <2>; + cpu-idle-states = <&CPU_SLEEP>; }; A53_L2: l2-cache0 { -- 2.7.4