@@ -358,6 +358,13 @@ patternProperties:
systems entry-latency-us + exit-latency-us will exceed
wakeup-latency-us by this duration.
+ idle-state-disabled:
+ description: |
+ If present the idle state stays disabled. It can be enabled back from
+ shell using below command.
+ echo N > /sys/devices/system/cpu/cpuX/cpuidle/stateX/disable
+ type: boolean
+
idle-state-name:
$ref: /schemas/types.yaml#/definitions/string
description:
@@ -548,6 +555,7 @@ examples:
CPU_SLEEP_0_0: cpu-sleep-0-0 {
compatible = "arm,idle-state";
local-timer-stop;
+ idle-state-disabled;
arm,psci-suspend-param = <0x0010000>;
entry-latency-us = <250>;
exit-latency-us = <500>;
This change adds idle-state-disabled property using which certain or all idle-states can be kept disabled during boot-up. Once boot-up is completed same can be enabled using below command. echo N > /sys/devices/system/cpu/cpuX/cpuidle/stateX/disable Cc: devicetree@vger.kernel.org Signed-off-by: Tushar Nimkar <quic_tnimkar@quicinc.com> --- Documentation/devicetree/bindings/cpu/idle-states.yaml | 8 ++++++++ 1 file changed, 8 insertions(+)