Re: [PATCH v2] dt-bindings: display: rockchip: convert rockchip-lvds.txt to YAML

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On 17/12/2022 16:23, Johan Jonker wrote:
> Convert rockchip-lvds.txt to YAML.
> 
> Changed:
>   Add power-domains property.
>   Requirements between PX30 and RK3288
> 
> Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx>
> ---
> 
> Changed V2:
>   Fix title
> ---
>  .../display/rockchip/rockchip-lvds.txt        |  92 ----------
>  .../display/rockchip/rockchip-lvds.yaml       | 157 ++++++++++++++++++
>  2 files changed, 157 insertions(+), 92 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
>  create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
> deleted file mode 100644
> index aaf8c44cf..000000000
> --- a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
> +++ /dev/null
> @@ -1,92 +0,0 @@
> -Rockchip RK3288 LVDS interface
> -================================
> -
> -Required properties:
> -- compatible: matching the soc type, one of
> -	- "rockchip,rk3288-lvds";
> -	- "rockchip,px30-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,output: "rgb", "lvds" or "duallvds", This describes the output interface
> -
> -- phys: LVDS/DSI DPHY (px30 only)
> -- phy-names: name of the PHY, must be "dphy" (px30 only)
> -
> -Optional properties:
> -- pinctrl-names: must contain a "lcdc" entry.
> -- pinctrl-0: pin control group to be used for this controller.
> -
> -Required nodes:
> -
> -The lvds has two video ports as described by
> -	Documentation/devicetree/bindings/media/video-interfaces.txt
> -Their connections are modeled using the OF graph bindings specified in
> -	Documentation/devicetree/bindings/graph.txt.
> -
> -- video port 0 for the VOP input, the remote endpoint maybe vopb or vopl
> -- video port 1 for either a panel or subsequent encoder
> -
> -Example:
> -
> -lvds_panel: lvds-panel {
> -	compatible = "auo,b101ean01";
> -	enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
> -	data-mapping = "jeida-24";
> -
> -	ports {
> -		panel_in_lvds: endpoint {
> -			remote-endpoint = <&lvds_out_panel>;
> -		};
> -	};
> -};
> -
> -For Rockchip RK3288:
> -
> -	lvds: lvds@ff96c000 {
> -		compatible = "rockchip,rk3288-lvds";
> -		rockchip,grf = <&grf>;
> -		reg = <0xff96c000 0x4000>;
> -		clocks = <&cru PCLK_LVDS_PHY>;
> -		clock-names = "pclk_lvds";
> -		pinctrl-names = "lcdc";
> -		pinctrl-0 = <&lcdc_ctl>;
> -		avdd1v0-supply = <&vdd10_lcd>;
> -		avdd1v8-supply = <&vcc18_lcd>;
> -		avdd3v3-supply = <&vcca_33>;
> -		rockchip,output = "rgb";
> -		ports {
> -			#address-cells = <1>;
> -			#size-cells = <0>;
> -
> -			lvds_in: port@0 {
> -				reg = <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_out: port@1 {
> -				reg = <1>;
> -
> -				lvds_out_panel: endpoint {
> -					remote-endpoint = <&panel_in_lvds>;
> -				};
> -			};
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.yaml
> new file mode 100644
> index 000000000..f05901633
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.yaml

Filename matching compatible style, so: "rockchip,lvds.yaml"

> @@ -0,0 +1,157 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/rockchip/rockchip-lvds.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Rockchip low-voltage differential signal (LVDS) transmitter
> +
> +maintainers:
> +  - Sandy Huang <hjc@xxxxxxxxxxxxxx>
> +  - Heiko Stuebner <heiko@xxxxxxxxx>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - rockchip,px30-lvds
> +      - rockchip,rk3288-lvds
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: pclk_lvds
> +
> +  avdd1v0-supply:
> +    description: Regulator phandle for 1.0V analog power.

Drop "Regulator phandle for ". Same in other regulators.

> +
> +  avdd1v8-supply:
> +    description: Regulator phandle for 1.8V analog power.
> +
> +  avdd3v3-supply:
> +    description: Regulator phandle for 3.3V analog power.
> +
> +  rockchip,grf:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: Phandle to the general register files syscon.
> +
> +  rockchip,output:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    enum: [rgb, lvds, duallvds]
> +    description: This describes the output interface.
> +
> +  phys:
> +    maxItems: 1
> +
> +  phy-names:
> +    const: dphy
> +
> +  pinctrl-names:
> +    const: lcdc
> +
> +  pinctrl-0: true
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          Video port 0 for the VOP input, the remote endpoint maybe vopb or vopl.
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          Video port 1 for either a panel or subsequent encoder.
> +
> +    required:
> +      - port@0
> +      - port@1
> +
> +additionalProperties: false
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: rockchip,px30-lvds
> +
> +    then:
> +      required:
> +        - phys
> +        - phy-names

else:
  properties:
    phys: false
    phy-names: false

(assuming it is correct)

> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: rockchip,rk3288-lvds
> +
> +    then:
> +      required:
> +        - reg
> +        - clocks
> +        - clock-names
> +        - avdd1v0-supply
> +        - avdd1v8-supply
> +        - avdd3v3-supply
> +
> +required:
> +  - compatible
> +  - rockchip,grf
> +  - rockchip,output
> +  - ports

Please keep order like in example-schema.yaml:

properties:
required:
allOf:
additionalProperties:
examples:

> +
> +examples:
> +  - |

Best regards,
Krzysztof




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