[U-Boot] [PATCH 5/5] doc: dt-bindings: Describe rockchip LVDS interface

Simon Glass sjg at chromium.org
Sun Mar 13 03:12:24 CET 2016


On 12 March 2016 at 06:13, Jacob Chen <jacob-chen at iotwrt.com> wrote:
> 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 <jacob-chen at iotwrt.com>
> Signed-off-by: jacob <jacob-chen at iotwrt.com>
> ---
>
>  doc/device-tree-bindings/video/rockchip-lvds.txt | 77 ++++++++++++++++++++++++
>  1 file changed, 77 insertions(+)
>  create mode 100644 doc/device-tree-bindings/video/rockchip-lvds.txt

Acked-by: Simon Glass <sjg at chromium.org>

Please see nit below.

>
> 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 0000000..60437f2
> --- /dev/null
> +++ b/doc/device-tree-bindings/video/rockchip-lvds.txt
> @@ -0,0 +1,77 @@
> +Rockchip LVDS interface
> +------------------
> +
> +(Required properties:

Do you need the '(' ?

> +- 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 <0> for "vesa" or  <1> for "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 <0> for "rgb", <1> for "lvds" or <2> for "duallvds",
> +       This describes the output face.
> +
> +- display-timings : described by
> +       doc/devicetree/device-tree-bindings/video/display-timing.txt.
> +
> +Example:
> +       lvds: lvds at 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 at 0 {
> +                               reg = <0>;
> +
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               lvds_in_vopb: endpoint at 0 {
> +                                       reg = <0>;
> +                                       remote-endpoint = <&vopb_out_lvds>;
> +                               };
> +                               lvds_in_vopl: endpoint at 1 {
> +                                       reg = <1>;
> +                                       remote-endpoint = <&vopl_out_lvds>;
> +                               };
> +                       };
> +               };
> +       };
> +'
> +       &lvds {
> +               rockchip,data-mapping = <0>;
> +               rockchip,data-width = <24>;
> +               rockchip,output = <2>;
> +               rockchip,panel = <&panel>;
> +               status = "okay";
> +
> +               display-timings {
> +                       timing at 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>;
> +                       };
> +               };
> +       };
> \ No newline at end of file

Can you add one?

> --
> 2.3.5
>

Regards,
Simon


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