# Re: \[PATCH v3 08/19\] dt-bindings: watchdog: fsl-imx-wdt: Add i.MX 8M compatibles

- From: Guenter Roeck \<linux@roeck-us.net\>
- Date: 2020-08-25 22:21:27 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2020/08/6082826
- Thread: https://ratatoskr.run/linux-devicetree/2020/08/6082672/t.md

```text
On 8/25/20 12:35 PM, Krzysztof Kozlowski wrote:
> DTSes with new i.MX 8M SoCs introduce their own compatibles so add them
> to fix dtbs_check warnings like:
> 
>   arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dt.yaml: watchdog@30280000:
>     compatible:0: 'fsl,imx8mm-wdt' is not one of ['fsl,imx21-wdt']
>     From schema: Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
> 
>   arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dt.yaml: watchdog@30280000:
>     compatible: ['fsl,imx8mm-wdt', 'fsl,imx21-wdt'] is too long
> 
>   arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dt.yaml: watchdog@30280000:
>     compatible: Additional items are not allowed ('fsl,imx21-wdt' was unexpected)
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> Reviewed-by: Rob Herring <robh@kernel.org>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>  .../devicetree/bindings/watchdog/fsl-imx-wdt.yaml     | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
> index d96b93b11fad..991b4e33486e 100644
> --- a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
> +++ b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
> @@ -14,8 +14,15 @@ allOf:
>  
>  properties:
>    compatible:
> -    enum:
> -      - fsl,imx21-wdt
> +    oneOf:
> +      - const: fsl,imx21-wdt
> +      - items:
> +          - enum:
> +              - fsl,imx8mm-wdt
> +              - fsl,imx8mn-wdt
> +              - fsl,imx8mp-wdt
> +              - fsl,imx8mq-wdt
> +          - const: fsl,imx21-wdt
>  
>    reg:
>      maxItems: 1
> 


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