On Thu, Mar 30, 2017 at 02:15:25PM +0300, Tomi Valkeinen wrote:
From: Peter Ujfalusi peter.ujfalusi@ti.com
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@ti.com Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Cc: devicetree@vger.kernel.org
.../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>;