dt-bindings: mediatek: add dither description for mt8183 display

Update device tree binding documention for the display subsystem for
Mediatek MT8183 SOCs

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Reviewed-by: Rob Herring <robh at kernel.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
index cdf3755..1c454ea 100644 (file)
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
@@ -33,6 +33,7 @@ Required properties (all function blocks):
        "mediatek,<chip>-disp-wdma"             - write DMA
        "mediatek,<chip>-disp-ccorr"            - color correction
        "mediatek,<chip>-disp-color"            - color processor
+       "mediatek,<chip>-disp-dither"           - dither
        "mediatek,<chip>-disp-aal"              - adaptive ambient light controller
        "mediatek,<chip>-disp-gamma"            - gamma correction
        "mediatek,<chip>-disp-merge"            - merge streams from two RDMA sources