Hi Heiko,
Thank you for the patch.
On Saturday 31 January 2015 17:32:57 Heiko Stuebner wrote:
> From: Mark Yao <yzq@xxxxxxxxxxxxxx>
>
> Add binding documentation for Rockchip SoC LVDS driver.
>
> Signed-off-by: Mark Yao <yzq@xxxxxxxxxxxxxx>
> Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
> ---
> .../devicetree/bindings/video/rockchip-lvds.txt | 59 +++++++++++++++++++
> 1 file changed, 59 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/video/rockchip-lvds.txt
>
> diff --git a/Documentation/devicetree/bindings/video/rockchip-lvds.txt
> b/Documentation/devicetree/bindings/video/rockchip-lvds.txt new file mode
> 100644
> index 0000000..1616d7e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/video/rockchip-lvds.txt
> @@ -0,0 +1,59 @@
> +Rockchip RK3288 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"
> +
> +- avdd1v0-supply: regulator phandle for 1.0V analog power
> +- avdd1v8-supply: regulator phandle for 1.8V analog power
> +- avdd3v3-supply: regulator phandle for 3.3V analog power
> +
> +- rockchip,grf: phandle to the general register files syscon
> +- rockchip,panel: phandle to a panel node as described by
> + Documentation/devicetree/bindings/panel/*
Doesn't this duplicate the information provided by the ports ?
> +- rockchip,data-mapping: should be "vesa" or "jeida",
> + 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 "rgb", "lvds" or "duallvds",
> + This describes the output face.
Isn't all this panel-dependent ? Could we query the information from the panel
at runtime instead ?
> +- ports: contain a port node with endpoint definitions as defined in
> + Documentation/devicetree/bindings/media/video-interfaces.txt.
> +
> +Example:
> + lvds: lvds@ff96c000 {
> + compatible = "rockchip,rk3288-lvds";
> + rockchip,grf = <&grf>;
> + reg = <0xff96c000 0x4000>;
> + clocks = <&cru PCLK_LVDS_PHY>;
> + clock-names = "pclk_lvds";
> + avdd1v0-supply = <&vdd10_lcd>;
> + avdd1v8-supply = <&vcc18_lcd>;
> + avdd3v3-supply = <&vcca_33>;
> + rockchip,panel = <&panel>;
> + rockchip,data-mapping = "jeida";
> + rockchip,data-width = <24>;
> + rockchip,output = "rgb";
> + ports {
> + lvds_in: port {
> + #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>;
> + };
> + };
> + };
> + };
--
Regards,
Laurent Pinchart
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