Re: [PATCH v2] dt-binding: ipmi: add fallback to npcm845 compatible

[Corey Minyard]

On Thu, Aug 04, 2022 at 09:18:00PM +0300, Tomer Maimon wrote:
> Add to npcm845 KCS compatible string a fallback to npcm750 KCS compatible
> string becuase NPCM845 and NPCM750 BMCs are using identical KCS modules.
> 
> Signed-off-by: Tomer Maimon <tmaimon77@xxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt b/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
> index cbc10a68ddef..4fda76e63396 100644
> --- a/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
> +++ b/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
> @@ -7,7 +7,7 @@ used to perform in-band IPMI communication with their host.
>  Required properties:
>  - compatible : should be one of
>      "nuvoton,npcm750-kcs-bmc"
> -    "nuvoton,npcm845-kcs-bmc"
> +    "nuvoton,npcm845-kcs-bmc", "nuvoton,npcm750-kcs-bmc"

This is just wrong.  The compatible is supposed to identify the device,
not the board the device is on.  I think compatible here should be
"npcm7xx-kcs-bmc", and just use that everywhere.  It's fine if that is
used on a board named npcm845.

-corey

>  - interrupts : interrupt generated by the controller
>  - kcs_chan : The KCS channel number in the controller
>  
> -- 
> 2.33.0
>