linux-kernel - Re: [PATCH v1 1/2] ASoC: dt-bindings: cirrus,cs35l41: Document the cirrus,subsystem-id property

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Message-ID: <20250912214140.GA1359075-robh@kernel.org>
Date: Fri, 12 Sep 2025 16:41:40 -0500
From: Rob Herring <robh@...nel.org>
To: Stefan Binding <sbinding@...nsource.cirrus.com>
Cc: Mark Brown <broonie@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	patches@...nsource.cirrus.com
Subject: Re: [PATCH v1 1/2] ASoC: dt-bindings: cirrus,cs35l41: Document the
 cirrus,subsystem-id property

On Fri, Sep 12, 2025 at 11:45:37AM +0100, Stefan Binding wrote:
> Add new property: cirrus,subsystem-id
> This new property is used to uniquely identify the system if device
> tree is used, to allow the driver to select the correct firmware and
> tuning for the system.
> 
> Signed-off-by: Stefan Binding <sbinding@...nsource.cirrus.com>
> ---
>  Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
> index 14dea1feefc5..a9eb9bd7ad9c 100644
> --- a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
> +++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
> @@ -151,6 +151,12 @@ properties:
>      minimum: 0
>      maximum: 5
>  
> +  cirrus,subsystem-id:
> +    description:
> +      Subsystem ID. If this property is present, it sets the system name,
> +      used to identify the firmware and tuning to load.
> +    type: string

Why not use standard 'firmware-name' to just say exactly what firmware 
to load?

Rob