linux-kernel - Re: [PATCH v1 1/2] dt-bindings: hwmon: Add AST2700 compatible

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Message-ID: <20251104-grumbling-document-6483add9415e@spud>
Date: Tue, 4 Nov 2025 17:23:11 +0000
From: Conor Dooley <conor@...nel.org>
To: Billy Tsai <billy_tsai@...eedtech.com>
Cc: linux@...ck-us.net, robh@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, joel@....id.au, andrew@...econstruct.com.au,
	linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-aspeed@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/2] dt-bindings: hwmon: Add AST2700 compatible

On Tue, Nov 04, 2025 at 01:51:11PM +0800, Billy Tsai wrote:
> Adds support for the AST2700 PWM/Tach controller by extending the
> compatible string enumeration in the device tree binding.
> 
> The AST2700 PWM/Tach hardware is compatible with the existing binding
> schema and requires no additional properties or modifications beyond
> the new compatible string.

With this commit message, I expected there to be a fallback compatible.
Why isn't one used?

> 
> Signed-off-by: Billy Tsai <billy_tsai@...eedtech.com>
> ---
>  Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml b/Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml
> index 9e5ed901ae54..d6ff4182085e 100644
> --- a/Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml
> +++ b/Documentation/devicetree/bindings/hwmon/aspeed,g6-pwm-tach.yaml
> @@ -20,6 +20,7 @@ properties:
>    compatible:
>      enum:
>        - aspeed,ast2600-pwm-tach
> +      - aspeed,ast2700-pwm-tach
>  
>    reg:
>      maxItems: 1
> -- 
> 2.25.1
> 

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