From fe2dfe068b45e6729ff4388adf4ed9a9c758b3a6 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Sat, 12 Oct 2024 19:19:12 +0800 Subject: [PATCH] arm64: dts: imx95: enable A55 cpuidle Add cpuidle node and enable cpuidle for A55. Signed-off-by: Peng Fan Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/imx95.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi index ae8e09203ef4..62bb526ba507 100644 --- a/arch/arm64/boot/dts/freescale/imx95.dtsi +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi @@ -22,12 +22,27 @@ #address-cells = <1>; #size-cells = <0>; + idle-states { + entry-method = "psci"; + + cpu_pd_wait: cpu-pd-wait { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x0010033>; + local-timer-stop; + entry-latency-us = <10000>; + exit-latency-us = <7000>; + min-residency-us = <27000>; + wakeup-latency-us = <15000>; + }; + }; + A55_0: cpu@0 { device_type = "cpu"; compatible = "arm,cortex-a55"; reg = <0x0>; enable-method = "psci"; #cooling-cells = <2>; + cpu-idle-states = <&cpu_pd_wait>; power-domains = <&scmi_perf IMX95_PERF_A55>; power-domain-names = "perf"; i-cache-size = <32768>; @@ -45,6 +60,7 @@ reg = <0x100>; enable-method = "psci"; #cooling-cells = <2>; + cpu-idle-states = <&cpu_pd_wait>; power-domains = <&scmi_perf IMX95_PERF_A55>; power-domain-names = "perf"; i-cache-size = <32768>; @@ -62,6 +78,7 @@ reg = <0x200>; enable-method = "psci"; #cooling-cells = <2>; + cpu-idle-states = <&cpu_pd_wait>; power-domains = <&scmi_perf IMX95_PERF_A55>; power-domain-names = "perf"; i-cache-size = <32768>; @@ -79,6 +96,7 @@ reg = <0x300>; enable-method = "psci"; #cooling-cells = <2>; + cpu-idle-states = <&cpu_pd_wait>; power-domains = <&scmi_perf IMX95_PERF_A55>; power-domain-names = "perf"; i-cache-size = <32768>; @@ -98,6 +116,7 @@ power-domain-names = "perf"; enable-method = "psci"; #cooling-cells = <2>; + cpu-idle-states = <&cpu_pd_wait>; i-cache-size = <32768>; i-cache-line-size = <64>; i-cache-sets = <128>; @@ -115,6 +134,7 @@ power-domain-names = "perf"; enable-method = "psci"; #cooling-cells = <2>; + cpu-idle-states = <&cpu_pd_wait>; i-cache-size = <32768>; i-cache-line-size = <64>; i-cache-sets = <128>; -- 2.50.1