Add a small note that makes explicit that properties named 'backlight' contain phandles to backlight nodes. This is needed so that we can automatically extract dependencies on backlight devices by assuming that a property with that name contains a phandle to such a device. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx> --- Changes in v2: - Document that consumers of backlight devices can use the 'backlight' property to hold a phandle to the backlight device. .../bindings/video/backlight/backlight.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/backlight.txt b/Documentation/devicetree/bindings/video/backlight/backlight.txt new file mode 100644 index 0000000..309949d --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/backlight.txt @@ -0,0 +1,22 @@ +Specifying backlight information for devices +============================================ + +Backlight user nodes +-------------------- + +Nodes such as display panels that refer to backlight devices can do so by simply having a property named 'backlight' that contains a phandle to a backlight node. + +Example: + + backlight: backlight { + compatible = "gpio-backlight"; + gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>; + }; + + [...] + + panel: panel { + compatible = "cptt,claa101wb01"; + + backlight = <&backlight>; + }; -- 2.4.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html