From 89a7b191fcd17e3f1dba963eb2cba8262b45a4d2 Mon Sep 17 00:00:00 2001 From: Dave Gerlach Date: Thu, 12 Dec 2019 22:17:25 -0600 Subject: [PATCH] ARM: dts: am4372: Add idle_states for cpuidle Add idle_states table for CPU on am437x. Currently just add C1 state which gates the MPU clock domain. Signed-off-by: Dave Gerlach Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/am4372.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index faa14dc..0001d4f 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -45,6 +45,7 @@ #size-cells = <0>; cpu: cpu@0 { compatible = "arm,cortex-a9"; + enable-method = "ti,am4372"; device_type = "cpu"; reg = <0>; @@ -54,6 +55,17 @@ operating-points-v2 = <&cpu0_opp_table>; clock-latency = <300000>; /* From omap-cpufreq driver */ + cpu-idle-states = <&mpu_gate>; + }; + + idle-states { + mpu_gate: mpu_gate { + compatible = "arm,idle-state"; + entry-latency-us = <40>; + exit-latency-us = <100>; + min-residency-us = <300>; + local-timer-stop; + }; }; }; -- 2.7.4