Re: [PATCH v4 2/4] dt-bindings: soc: imx8mp-media-blk-ctrl: Add LDB subnode into schema and example

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Hi Marek,

thanks for the cleanup.

Am Donnerstag, 23. Februar 2023, 16:10:41 CET schrieb Marek Vasut:
> Document the LDB bridge subnode and add the subnode into the example.
> For the subnode to work, the block control must scan its subnodes and
> bind drivers to them, do not misuse either simple-bus or simple-mfd
> here.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Reviewed-by: Liu Ying <victor.liu@xxxxxxx>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> ---
> Cc: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
> Cc: Fabio Estevam <festevam@xxxxxxxxx>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> Cc: NXP Linux Team <linux-imx@xxxxxxx>
> Cc: Paul Elder <paul.elder@xxxxxxxxxxxxxxxx>
> Cc: Peng Fan <peng.fan@xxxxxxx>
> Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
> Cc: Richard Cochran <richardcochran@xxxxxxxxx>
> Cc: Richard Zhu <hongxing.zhu@xxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> ---
> V2: Add RB from Liu
> V3: - Update commit subject and drop space before fullstop.
>     - Add RB from Krzysztof
> V4: No change
> ---
>  .../soc/imx/fsl,imx8mp-media-blk-ctrl.yaml    | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)
> 
> diff --git
> a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-media-blk-ctrl.yaml
> b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-media-blk-ctrl.yaml
> index a0f7c73510d04..f092916dc8594 100644
> ---
> a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-media-blk-ctrl.yaml
> +++
> b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-media-blk-ctrl.yaml
> @@ -23,6 +23,12 @@ properties:
>    reg:
>      maxItems: 1
> 
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 1
> +
>    '#power-domain-cells':
>      const: 1
> 
> @@ -78,9 +84,16 @@ properties:
>        - const: isp1
>        - const: dwe
> 
> +  bridge@5c:
> +    type: object
> +    $ref: /schemas/display/bridge/fsl,ldb.yaml#
> +    unevaluatedProperties: false
> +
>  required:
>    - compatible
>    - reg
> +  - '#address-cells'
> +  - '#size-cells'
>    - '#power-domain-cells'
>    - power-domains
>    - power-domain-names
> @@ -114,5 +127,43 @@ examples:
>          clock-names = "apb", "axi", "cam1", "cam2", "disp1", "disp2",
>                        "isp", "phy";
>          #power-domain-cells = <1>;
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +
> +        bridge@5c {
> +            compatible = "fsl,imx8mp-ldb";
> +            clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;
> +            clock-names = "ldb";
> +            reg = <0x5c 0x4>, <0x128 0x4>;
> +            reg-names = "ldb", "lvds";

I remember that reg shall be stated right after compatible. Maybe this order 
should be used this example as well.
Despite that:
Acked-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>

> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port@0 {
> +                    reg = <0>;
> +
> +                    ldb_from_lcdif2: endpoint {
> +                        remote-endpoint = <&lcdif2_to_ldb>;
> +                    };
> +                };
> +
> +                port@1 {
> +                    reg = <1>;
> +
> +                    ldb_lvds_ch0: endpoint {
> +                        remote-endpoint = <&ldb_to_lvdsx4panel>;
> +                    };
> +                };
> +
> +                port@2 {
> +                    reg = <2>;
> +
> +                    ldb_lvds_ch1: endpoint {
> +                    };
> +                };
> +            };
> +        };
>      };
>  ...


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