On Thu, Mar 30, 2017 at 02:15:25PM +0300, Tomi Valkeinen wrote:
> From: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
>
> The associated backlight device can be configured via DT by providing the
> phandle to the device.
>
> If the backlight device is configured, the driver can manage the backligt
> along with the panel's power state, iow it can turn on the backlight when
> the panel is enabled and turn it off when the panel is disabled.
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> ---
> .../bindings/display/panel/panel-dpi.txt | 3 ++
> drivers/gpu/drm/omapdrm/displays/panel-dpi.c | 37 ++++++++++++++++++++--
> 2 files changed, 38 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/display/panel/panel-dpi.txt b/Documentation/devicetree/bindings/display/panel/panel-dpi.txt
> index d4add13e592d..6b203bc4d932 100644
> --- a/Documentation/devicetree/bindings/display/panel/panel-dpi.txt
> +++ b/Documentation/devicetree/bindings/display/panel/panel-dpi.txt
> @@ -9,6 +9,7 @@ Optional properties:
> - enable-gpios: panel enable gpio
> - reset-gpios: GPIO to control the RESET pin
> - vcc-supply: phandle of regulator that will be used to enable power to the display
> +- backlight: phandle of the backlight device
Any panel can have a backlight, so please add to panel/panel.txt
instead.
>
> Required nodes:
> - "panel-timing" containing video timings
> @@ -22,6 +23,8 @@ lcd0: display@0 {
> compatible = "samsung,lte430wq-f0c", "panel-dpi";
> label = "lcd";
>
> + backlight = <&backlight>;
> +
> port {
> lcd_in: endpoint {
> remote-endpoint = <&dpi_out>;
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