On Wed, Dec 3, 2014 at 10:57 AM, Pavel Machek <pavel@xxxxxx> wrote:
>
> Addition of a LED Flash class extension entails the need for flash LED
> specific device tree properties. The properties being added are:
> max-microamp, flash-max-microamp, flash-timeout-microsec.
>
> Signed-off-by: Pavel Machek <pavel@xxxxxx>
> Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
> Acked-by: Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx>
>
Thanks a lot, let me wait for one ack from Device Tree maintainers, as
it's a pure device tree patch.
Rob, can you help to give a review and ack?
-Bryan
> ---
>
> This will allow me to add device tree support for adp1653 i2c flash
> LED driver, and allow Jacek Anaszewski to add support for more LED
> drivers..
>
>
> diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
> index 2d88816..e9acbbc 100644
> --- a/Documentation/devicetree/bindings/leds/common.txt
> +++ b/Documentation/devicetree/bindings/leds/common.txt
> @@ -14,6 +14,15 @@ Optional properties for child nodes:
> "ide-disk" - LED indicates disk activity
> "timer" - LED flashes at a fixed, configurable rate
>
> +- max-microamp : maximum intensity in microamperes of the LED
> + (torch LED for flash devices)
> +- flash-max-microamp : maximum intensity in microamperes of the
> + flash LED; it is mandatory if the LED should
> + support the flash mode
> +- flash-timeout-microsec : timeout in microseconds after which the flash
> + LED is turned off
> +
> +
> Examples:
>
> system-status {
> @@ -21,3 +30,10 @@ system-status {
> linux,default-trigger = "heartbeat";
> ...
> };
> +
> +camera-flash {
> + label = "Flash";
> + max-microamp = <50000>;
> + flash-max-microamp = <320000>;
> + flash-timeout-microsec = <500000>;
> +}
>
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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