Re: [RESEND PATCH v2 1/5] dt-bindings: sound: Add jack-type property to sun8i-a33-codec

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On Tue, Feb 27, 2024 at 12:57:08AM +0100, Ondřej Jirman wrote:
> On Mon, Feb 26, 2024 at 01:47:27PM -0600, Rob Herring wrote:
> > On Sat, Feb 24, 2024 at 02:54:54PM +0100, Ondřej Jirman wrote:
> > > From: Ondrej Jirman <megi@xxxxxx>
> > > 
> > > The codec driver needs to know what jack connector it is connected to
> > > on the board. Add proprty to describe the type of connector.
> > > 
> > > Signed-off-by: Ondrej Jirman <megi@xxxxxx>
> > > ---
> > >  .../bindings/sound/allwinner,sun8i-a33-codec.yaml        | 9 +++++++++
> > >  1 file changed, 9 insertions(+)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
> > > index 63eadc4200ac..399fc00ad3f4 100644
> > > --- a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
> > > +++ b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
> > > @@ -44,6 +44,15 @@ properties:
> > >        - const: bus
> > >        - const: mod
> > >  
> > > +  jack-type:
> > 
> > I'm all for a generic property name, but it needs to be documented 
> > somewhere common. Perhaps dai-common.yaml.
> > 
> > I'm sure there is some prior art here to consider as well.
> 
> There's only a mention in the code. But there's no use of similar property
> on the codec nodes.
> 
> https://elixir.bootlin.com/linux/latest/source/sound/soc/soc-component.c#L288

git grep 'jack' Documentation/devicetree/bindings/sound

There's lots of things related to jack. I don't see type, but I didn't 
go looking for 'mic' or 'headphone' or 'headset' or ...

> 
> /**
>  * snd_soc_component_get_jack_type
>  * @component: COMPONENTs
>  *
>  * Returns the jack type of the component
>  * This can either be the supported type or one read from
>  * devicetree with the property: jack-type.
>  */
> 
> This is part of a component, so maybe in sound/component-common.yaml ?

A comment with no other usage I can find doesn't make it documented.

Rob




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