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| author | Ezequiel Garcia | 2014-09-02 14:51:20 +0200 |
|---|---|---|
| committer | Dave Airlie | 2014-09-17 02:55:10 +0200 |
| commit | 18c44db8cafe9bda4fcb51bfc05c1f1d7cefc44c (patch) | |
| tree | 11e9acff4f78b2edee93676925a52122460c5788 /Documentation | |
| parent | drm/tilcdc: panel: Use devm_kzalloc to simplify the error path (diff) | |
| download | kernel-qcow2-linux-18c44db8cafe9bda4fcb51bfc05c1f1d7cefc44c.tar.gz kernel-qcow2-linux-18c44db8cafe9bda4fcb51bfc05c1f1d7cefc44c.tar.xz kernel-qcow2-linux-18c44db8cafe9bda4fcb51bfc05c1f1d7cefc44c.zip | |
drm/tilcdc: panel: Fix backlight devicetree support
The current backlight support is broken; the driver expects a backlight-class
in the panel devicetree node. Fix this by implementing it properly, getting
an optional backlight from a phandle.
This shouldn't cause any backward-compatibility DT issue because the current
implementation doesn't work and is not even documented.
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/drm/tilcdc/panel.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/drm/tilcdc/panel.txt b/Documentation/devicetree/bindings/drm/tilcdc/panel.txt index 9301c330d1a6..10a06e826b4a 100644 --- a/Documentation/devicetree/bindings/drm/tilcdc/panel.txt +++ b/Documentation/devicetree/bindings/drm/tilcdc/panel.txt @@ -18,6 +18,9 @@ Required properties: Documentation/devicetree/bindings/video/display-timing.txt for display timing binding details. +Optional properties: +- backlight: phandle of the backlight device attached to the panel + Recommended properties: - pinctrl-names, pinctrl-0: the pincontrol settings to configure muxing properly for pins that connect to TFP410 device @@ -29,6 +32,8 @@ Example: compatible = "ti,tilcdc,panel"; pinctrl-names = "default"; pinctrl-0 = <&bone_lcd3_cape_lcd_pins>; + backlight = <&backlight>; + panel-info { ac-bias = <255>; ac-bias-intrpt = <0>; |