[PATCH 4/5] devicetree: leds: Introduce "panic-blink" optional property

Rob Herring robh at kernel.org
Wed Apr 6 08:12:09 PDT 2016


On Mon, Apr 4, 2016 at 3:22 PM, Ezequiel Garcia
<ezequiel at vanguardiasur.com.ar> wrote:
> It's desirable to specify which LEDs are to be blinked on a kernel
> panic. Therefore, introduce a devicetree boolean property to mark
> which LEDs should be treated this way.
>
> Signed-off-by: Ezequiel Garcia <ezequiel at vanguardiasur.com.ar>
> ---
>  Documentation/devicetree/bindings/leds/common.txt | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
> index 68419843e32f..dd409df9203a 100644
> --- a/Documentation/devicetree/bindings/leds/common.txt
> +++ b/Documentation/devicetree/bindings/leds/common.txt
> @@ -37,6 +37,8 @@ Optional properties for child nodes:
>                       property is mandatory for the LEDs in the non-flash modes
>                       (e.g. torch or indicator).
>
> +- panic-blink : Mark this LED to be used by the panic LED trigger.
> +

We already have a way to specify LED triggers. Why can't that be used?

Rob



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