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authorDave Gerlach <d-gerlach@ti.com>2019-12-13 07:17:24 +0300
committerTony Lindgren <tony@atomide.com>2020-02-27 20:33:29 +0300
commitc3e6fccafd6ecc6f59f63aedcc6dac0f01012c3a (patch)
tree60b87a340661dbe37570d8b4758592fd79404fa9 /arch/arm/boot/dts/am33xx.dtsi
parent8f38fd5ba6164757065efebe551a0d63220ac58a (diff)
downloadlinux-c3e6fccafd6ecc6f59f63aedcc6dac0f01012c3a.tar.xz
ARM: dts: am33xx: Add idle_states for cpuidle
Add idle_states table for CPU on am335x. Currently just add C1 state which gates the MPU clock domain. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/am33xx.dtsi')
-rw-r--r--arch/arm/boot/dts/am33xx.dtsi12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 41dcfb37155a..430a634357a1 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -47,6 +47,7 @@
#size-cells = <0>;
cpu@0 {
compatible = "arm,cortex-a8";
+ enable-method = "ti,am3352";
device_type = "cpu";
reg = <0>;
@@ -56,6 +57,17 @@
clock-names = "cpu";
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 = <90>;
+ min-residency-us = <300>;
+ ti,idle-wkup-m3;
+ };
};
};