[PATCH v10 09/17] dt-bindings: add document for rockchip variant of analogix_dp

[Rob Herring]

On Sat, Oct 31, 2015 at 1:42 AM, Yakir Yang <ykk at rock-chips.com> wrote:
> Rockchip DP driver is a helper driver of analogix_dp coder driver,
> so most of the DT property should be descriped in analogix_dp document.
>
> Reviewed-by: Heiko Stuebner <heiko at sntech.de>
> Signed-off-by: Yakir Yang <ykk at rock-chips.com>

Acked-by: Rob Herring <robh at kernel.org>

> ---
> Changes in v10:
> - Removed the duplicated signed-of.
>
> Changes in v9:
> - Document more details for 'ports' property.
>
> Changes in v8:
> - Modify the commit subject name. (Heiko)
>
> Changes in v7: None
> Changes in v6: None
> Changes in v5:
> - Split binding doc's from driver changes. (Rob)
> - Add eDP hotplug pinctrl property. (Heiko)
>
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
>
>  .../display/rockchip/analogix_dp-rockchip.txt      | 91 ++++++++++++++++++++++
>  1 file changed, 91 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
>
> diff --git a/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
> new file mode 100644
> index 0000000..dae86c4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
> @@ -0,0 +1,91 @@
> +Rockchip RK3288 specific extensions to the Analogix Display Port
> +================================
> +
> +Required properties:
> +- compatible: "rockchip,rk3288-edp";
> +
> +- reg: physical base address of the controller and length
> +
> +- clocks: from common clock binding: handle to dp clock.
> +         of memory mapped region.
> +
> +- clock-names: from common clock binding:
> +              Required elements: "dp" "pclk"
> +
> +- resets: Must contain an entry for each entry in reset-names.
> +         See ../reset/reset.txt for details.
> +
> +- pinctrl-names: Names corresponding to the chip hotplug pinctrl states.
> +- pinctrl-0: pin-control mode. should be <&edp_hpd>
> +
> +- reset-names: Must include the name "dp"
> +
> +- rockchip,grf: this soc should set GRF regs, so need get grf here.
> +
> +- ports: there are 2 port nodes with endpoint definitions as defined in
> +  Documentation/devicetree/bindings/media/video-interfaces.txt.
> +    Port 0: contained 2 endpoints, connecting to the ouput of vop.
> +    Port 1: contained 1 endpoint, connecting to the input of panel.
> +
> +For the below properties, please refer to Analogix DP binding document:
> + * Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt
> +- phys (required)
> +- phy-names (required)
> +- hpd-gpios (optional)
> +-------------------------------------------------------------------------------
> +
> +Example:
> +       dp-controller: dp at ff970000 {
> +               compatible = "rockchip,rk3288-dp";
> +               reg = <0xff970000 0x4000>;
> +               interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
> +               clocks = <&cru SCLK_EDP>, <&cru PCLK_EDP_CTRL>;
> +               clock-names = "dp", "pclk";
> +               phys = <&dp_phy>;
> +               phy-names = "dp";
> +
> +               rockchip,grf = <&grf>;
> +               resets = <&cru 111>;
> +               reset-names = "dp";
> +
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&edp_hpd>;
> +
> +               status = "disabled";
> +
> +               ports {
> +                       #address-cells = <1>;
> +                       #size-cells = <0>;
> +                       edp_in: port at 0 {
> +                               reg = <0>;
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +                               edp_in_vopb: endpoint at 0 {
> +                                       reg = <0>;
> +                                       remote-endpoint = <&vopb_out_edp>;
> +                               };
> +                               edp_in_vopl: endpoint at 1 {
> +                                       reg = <1>;
> +                                       remote-endpoint = <&vopl_out_edp>;
> +                               };
> +                       };
> +
> +                       edp_out: port at 1 {
> +                               reg = <1>;
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +                               edp_out_panel: endpoint {
> +                                       reg = <0>;
> +                                       remote-endpoint = <&panel_in_edp>
> +                               };
> +                       };
> +               };
> +       };
> +
> +       pinctrl {
> +               edp {
> +                       edp_hpd: edp-hpd {
> +                               rockchip,pins = <7 11 RK_FUNC_2 &pcfg_pull_none>;
> +                       };
> +               };
> +       };
> --
> 1.9.1
>
>