From: Jacob Chen Date: Mon, 14 Mar 2016 03:20:19 +0000 (+0800) Subject: doc: dt-bindings: Describe rockchip LVDS interface X-Git-Tag: v2016.05-rc1~418^2~3 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=c87c30e3ba9ab110c031c14d1f349118d32041c1;p=u-boot doc: dt-bindings: Describe rockchip LVDS interface I didn't have a common board to enable LVDS. So add this dcocument to help others who want to enable LVDS in their board. Signed-off-by: Jacob Chen Acked-by: Simon Glass --- diff --git a/doc/device-tree-bindings/video/rockchip-lvds.txt b/doc/device-tree-bindings/video/rockchip-lvds.txt new file mode 100644 index 0000000000..07e3d3f9de --- /dev/null +++ b/doc/device-tree-bindings/video/rockchip-lvds.txt @@ -0,0 +1,77 @@ +Rockchip LVDS interface +------------------ + +Required properties: +- compatible: "rockchip,rk3288-lvds"; + +- reg: physical base address of the controller and length + of memory mapped region. +- clocks: must include clock specifiers corresponding to entries in the + clock-names property. +- clock-names: must contain "pclk_lvds" + +- rockchip,grf: phandle to the general register files syscon + +- rockchip,data-mapping: should be or , + This describes how the color bits are laid out in the + serialized LVDS signal. +- rockchip,data-width : should be <18> or <24>; +- rockchip,output: should be , or + , This describes the output face. + +- display-timings : described by + doc/devicetree/device-tree-bindings/video/display-timing.txt. + +Example: + lvds: lvds@ff96c000 { + compatible = "rockchip,rk3288-lvds"; + reg = <0xff96c000 0x4000>; + clocks = <&cru PCLK_LVDS_PHY>; + clock-names = "pclk_lvds"; + pinctrl-names = "default"; + pinctrl-0 = <&lcdc0_ctl>; + rockchip,grf = <&grf>; + status = "disabled"; + ports { + #address-cells = <1>; + #size-cells = <0>; + + lvds_in: port@0 { + reg = <0>; + + #address-cells = <1>; + #size-cells = <0>; + + lvds_in_vopb: endpoint@0 { + reg = <0>; + remote-endpoint = <&vopb_out_lvds>; + }; + lvds_in_vopl: endpoint@1 { + reg = <1>; + remote-endpoint = <&vopl_out_lvds>; + }; + }; + }; + }; + + &lvds { + rockchip,data-mapping = ; + rockchip,data-width = <24>; + rockchip,output = ; + rockchip,panel = <&panel>; + status = "okay"; + + display-timings { + timing@0 { + clock-frequency = <40000000>; + hactive = <1920>; + vactive = <1080>; + hsync-len = <44>; + hfront-porch = <88>; + hback-porch = <148>; + vfront-porch = <4>; + vback-porch = <36>; + vsync-len = <5>; + }; + }; + };