linux-kernel - Re: [PATCH v7 2/6] dt-bindings: display: ti,am65x-dss: Add support for am625 dss

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Date:   Wed, 25 Jan 2023 13:05:42 -0600
From:   Rob Herring <robh@...nel.org>
To:     Aradhya Bhatia <a-bhatia1@...com>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Tomi Valkeinen <tomba@...nel.org>,
        Jyri Sarha <jyri.sarha@....fi>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        DRI Development List <dri-devel@...ts.freedesktop.org>,
        Devicetree List <devicetree@...r.kernel.org>,
        Linux Kernel List <linux-kernel@...r.kernel.org>,
        Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rahul T R <r-ravikumar@...com>,
        Devarsh Thakkar <devarsht@...com>,
        Jai Luthra <j-luthra@...com>,
        Jayesh Choudhary <j-choudhary@...com>
Subject: Re: [PATCH v7 2/6] dt-bindings: display: ti,am65x-dss: Add support
 for am625 dss

On Wed, Jan 25, 2023 at 05:05:25PM +0530, Aradhya Bhatia wrote:
> The DSS controller on TI's AM625 SoC is an update from that on TI's
> AM65X SoC. The former has an additional OLDI TX on its first video port
> (VP0) that helps output cloned video or WUXGA (1920x1200@...ps)
> resolution video output over a dual-link mode to reduce the required
> OLDI clock output.
> 
> Add the new controller's compatible and a port property for the 2nd OLDI
> TX (OLDI TX 1).
> 
> Signed-off-by: Aradhya Bhatia <a-bhatia1@...com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Reviewed-by: Rahul T R <r-ravikumar@...com>
> ---
>  .../bindings/display/ti/ti,am65x-dss.yaml     | 23 +++++++++++++++++--
>  1 file changed, 21 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml b/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
> index 5c7d2cbc4aac..55ec91f11577 100644
> --- a/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
> +++ b/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
> @@ -19,7 +19,9 @@ description: |
>  
>  properties:
>    compatible:
> -    const: ti,am65x-dss
> +    enum:
> +      - ti,am625-dss
> +      - ti,am65x-dss
>  
>    reg:
>      description:
> @@ -80,13 +82,18 @@ properties:
>        port@0:
>          $ref: /schemas/graph.yaml#/properties/port
>          description:
> -          The DSS OLDI output port node form video port 1
> +          The DSS OLDI output port node form video port 1 (OLDI TX 0).

s/form/from/

>  
>        port@1:
>          $ref: /schemas/graph.yaml#/properties/port
>          description:
>            The DSS DPI output port node from video port 2
>  
> +      port@2:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          The DSS OLDI output port node form video port 1 (OLDI TX 1).

s/form/from/


> +
>    ti,am65x-oldi-io-ctrl:
>      $ref: "/schemas/types.yaml#/definitions/phandle"
>      description:
> @@ -102,6 +109,18 @@ properties:
>        Input memory (from main memory to dispc) bandwidth limit in
>        bytes per second
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: ti,am65x-dss
> +    then:
> +      properties:
> +        ports:
> +          properties:
> +            port@2: false
> +
>  required:
>    - compatible
>    - reg
> -- 
> 2.39.0
>