Hey Tushar,
On Thu, Jun 08, 2023 at 02:25:42PM +0530, Tushar Nimkar wrote:
> 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@xxxxxxxxxxxxxxx
Firstly, you should CC the dt-bindings maintainers like
get_maintainer.pl would tell you.
Secondly, there are two 1/2 patches in this series.
> Signed-off-by: Tushar Nimkar <quic_tnimkar@xxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/cpu/idle-states.yaml | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/cpu/idle-states.yaml b/Documentation/devicetree/bindings/cpu/idle-states.yaml
> index b8cc826c9501..f999bc666bbd 100644
> --- a/Documentation/devicetree/bindings/cpu/idle-states.yaml
> +++ b/Documentation/devicetree/bindings/cpu/idle-states.yaml
> @@ -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
Thirdly, this is operating system specific behaviour, tied to Linux, and
has no place in a binding.
Cheers,
Conor.
> + 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>;
> --
> 2.17.1
>
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