Re: [PATCH 3/8] dt-bindings: serial: fsl-linflexuart: Add compatible for S32G2

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On Thu, Aug 05, 2021 at 02:54:24PM +0800, Chester Lin wrote:
> Add a compatible string for the uart binding of NXP S32G2 platforms. Here
> we use "s32v234-linflexuart" as fallback since the current linflexuart
> driver still works on S32G2.
> 
> Signed-off-by: Chester Lin <clin@xxxxxxxx>
> ---
>  .../bindings/serial/fsl,s32-linflexuart.yaml  | 26 ++++++++++++++++---
>  1 file changed, 22 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
> index acfe34706ccb..e731f3f6cea4 100644
> --- a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
> +++ b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
> @@ -21,10 +21,20 @@ allOf:
>  
>  properties:
>    compatible:
> -    description: The LINFlexD controller on S32V234 SoC, which can be
> -      configured in UART mode.
> -    items:
> -      - const: fsl,s32v234-linflexuart
> +    minItems: 1
> +    maxItems: 2

minItems/maxItems not needed here.

> +    oneOf:
> +      - description: The LINFlexD controller on S32G2 SoC, which can be
> +          configured in UART mode.
> +        items:
> +          - enum:
> +              - fsl,s32g2-linflexuart
> +          - const: fsl,s32v234-linflexuart
> +
> +      - description: The LINFlexD controller on S32V234 SoC, which can be
> +          configured in UART mode.
> +        items:
> +          - const: fsl,s32v234-linflexuart
>  
>    reg:
>      maxItems: 1
> @@ -41,8 +51,16 @@ unevaluatedProperties: false
>  
>  examples:
>    - |
> +    /* S32V234 */
>      serial@40053000 {
>          compatible = "fsl,s32v234-linflexuart";
>          reg = <0x40053000 0x1000>;
>          interrupts = <0 59 4>;
>      };
> +
> +    /* S32G2 */
> +    serial@401c8000 {
> +        compatible = "fsl,s32g2-linflexuart", "fsl,s32v234-linflexuart";
> +        reg = <0x401c8000 0x3000>;
> +        interrupts = <0 82 1>;
> +    };

This doesn't really warrant another example just for a new compatible 
string.



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