Re: [PATCH V2] dt-bindings: watchdog: brcm,bcm7038: add more compatible strings

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On Wed, Jan 26, 2022 at 11:20:34PM +0100, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@xxxxxxxxxx>
> 
> This hardware block is used on almost all BCM63xx family chipsets and
> BCM4908 which reuses a lot of BCM63xx parts. Add relevant compatible
> strings and also include a generic one.
> 
> The only SoC with a different block I found is BCM6838 (thus not included
> in this change).
> 
> It may be worth noting that BCM6338, BCM6345, BCM6348 and BCM63268 don't
> include "SoftRst" register but that can be handled by drivers based on
> precise compatible string.
> 
> Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
> ---
> V2: Sort enum entries & update brcm,twd.yaml
> ---
>  .../devicetree/bindings/mfd/brcm,twd.yaml     |  2 +-
>  .../bindings/watchdog/brcm,bcm7038-wdt.yaml   | 21 +++++++++++++++----
>  2 files changed, 18 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/brcm,twd.yaml b/Documentation/devicetree/bindings/mfd/brcm,twd.yaml
> index 634526f790b8..3f5db1990aba 100644
> --- a/Documentation/devicetree/bindings/mfd/brcm,twd.yaml
> +++ b/Documentation/devicetree/bindings/mfd/brcm,twd.yaml
> @@ -55,7 +55,7 @@ examples:
>          #size-cells = <1>;
>  
>          watchdog@28 {
> -            compatible = "brcm,bcm7038-wdt";
> +            compatible = "brcm,bcm4908-wdt", "brcm,bcm63xx-wdt";
>              reg = <0x28 0x8>;
>          };
>      };
> diff --git a/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.yaml b/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.yaml
> index a926809352b8..4d848442913c 100644
> --- a/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.yaml
> +++ b/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.yaml
> @@ -16,9 +16,22 @@ maintainers:
>  
>  properties:
>    compatible:
> -    enum:
> -      - brcm,bcm6345-wdt
> -      - brcm,bcm7038-wdt
> +    items:
> +      - enum:
> +          - brcm,bcm4908-wdt
> +          - brcm,bcm6338-wdt
> +          - brcm,bcm6345-wdt
> +          - brcm,bcm6348-wdt
> +          - brcm,bcm6848-wdt
> +          - brcm,bcm6858-wdt
> +          - brcm,bcm7038-wdt
> +          - brcm,bcm60333-wdt
> +          - brcm,bcm63138-wdt
> +          - brcm,bcm63148-wdt
> +          - brcm,bcm63268-wdt
> +          - brcm,bcm63381-wdt
> +          - brcm,bcm68360-wdt
> +      - const: brcm,bcm63xx-wdt

Is it really worthwhile to update all these DTs?:

arch/mips/boot/dts/brcm/bcm63268.dtsi:                  compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm6328.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm6358.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm6362.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm6368.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm7125.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm7346.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm7358.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm7360.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm7362.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm7420.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm7425.dtsi:                   compatible = "brcm,bcm7038-wdt";
arch/mips/boot/dts/brcm/bcm7435.dtsi:                   compatible = "brcm,bcm7038-wdt";

I don't think so.

Rob



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