Hi, Yongqiang: On Wed, 2019-06-05 at 19:42 +0800, yongqiang.niu@xxxxxxxxxxxx wrote: > From: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> > > Update device tree binding documention for the display subsystem for > Mediatek MT8183 SOCs > > Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> > --- > .../bindings/display/mediatek/mediatek,disp.txt | 34 +++++++++++++--------- > 1 file changed, 20 insertions(+), 14 deletions(-) > > diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt > index 8469de5..70770fe 100644 > --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt > +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt > @@ -27,20 +27,20 @@ Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt. > > Required properties (all function blocks): > - compatible: "mediatek,<chip>-disp-<function>", one of > - "mediatek,<chip>-disp-ovl" - overlay (4 layers, blending, csc) > - "mediatek,<chip>-disp-rdma" - read DMA / line buffer > - "mediatek,<chip>-disp-wdma" - write DMA > - "mediatek,<chip>-disp-color" - color processor > - "mediatek,<chip>-disp-aal" - adaptive ambient light controller > - "mediatek,<chip>-disp-gamma" - gamma correction > - "mediatek,<chip>-disp-merge" - merge streams from two RDMA sources > - "mediatek,<chip>-disp-split" - split stream to two encoders > - "mediatek,<chip>-disp-ufoe" - data compression engine > - "mediatek,<chip>-dsi" - DSI controller, see mediatek,dsi.txt > - "mediatek,<chip>-dpi" - DPI controller, see mediatek,dpi.txt > - "mediatek,<chip>-disp-mutex" - display mutex > - "mediatek,<chip>-disp-od" - overdrive > - the supported chips are mt2701, mt2712 and mt8173. > + "mediatek,<chip>-disp-ovl" - overlay (4 layers, blending, csc) > + "mediatek,<chip>-disp-rdma" - read DMA / line buffer > + "mediatek,<chip>-disp-wdma" - write DMA > + "mediatek,<chip>-disp-color" - color processor > + "mediatek,<chip>-disp-aal" - adaptive ambient light controller > + "mediatek,<chip>-disp-gamma" - gamma correction > + "mediatek,<chip>-disp-merge" - merge streams from two RDMA sources > + "mediatek,<chip>-disp-split" - split stream to two encoders > + "mediatek,<chip>-disp-ufoe" - data compression engine > + "mediatek,<chip>-dsi" - DSI controller, see mediatek,dsi.txt > + "mediatek,<chip>-dpi" - DPI controller, see mediatek,dpi.txt > + "mediatek,<chip>-disp-mutex" - display mutex > + "mediatek,<chip>-disp-od" - overdrive I think you add 'tab' because of "add ovl_2l description for mt8183 display" not "add binding for mt8183 display", so move the 'tab' to the related patch. > + the supported chips are mt2701, mt2712, mt8173 and mt8183. > - reg: Physical base address and length of the function block register space > - interrupts: The interrupt signal from the function block (required, except for > merge and split function blocks). > @@ -71,6 +71,12 @@ mmsys: clock-controller@14000000 { > #clock-cells = <1>; > }; > > +display_components: dispsys@14000000 { > + compatible = "mediatek,mt8183-display"; Where do you define "mediatek,mt8183-display"? Regards, CK > + reg = <0 0x14000000 0 0x1000>; > + power-domains = <&scpsys MT8183_POWER_DOMAIN_DISP>; > +}; > + > ovl0: ovl@1400c000 { > compatible = "mediatek,mt8173-disp-ovl"; > reg = <0 0x1400c000 0 0x1000>;