Re: [PATCH] ASoC: dt-bindings: Centralize the 'sound-dai' definition

[Rob Herring]

On Thu, Jan 27, 2022 at 3:05 AM Jerome Brunet <jbrunet@xxxxxxxxxxxx> wrote:
>
>
> On Wed 26 Jan 2022 at 17:14, Rob Herring <robh@xxxxxxxxxx> wrote:
>
> > 'sound-dai' is a common property, but has duplicate type definitions.
> > Create a new common definition to define the type and then update all
> > the other occurrences to just define how many entries there are just
> > like other phandle+arg properties.
> >
> > The constraints on the number of entries is based on the examples and
> > could be wrong.
> >
> > Cc: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
> > Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
> > ---
> > Please ack, this depends on commit abf0fee97313 ("dt-bindings: Improve
> > phandle-array schemas") in my tree.
> > ---
> >  .../bindings/sound/amlogic,gx-sound-card.yaml |  4 ++--
> >  .../bindings/sound/google,sc7180-trogdor.yaml |  6 ++++--
> >  .../bindings/sound/imx-audio-card.yaml        |  7 +++++--
> >  .../bindings/sound/qcom,sm8250.yaml           | 10 +++++++---
> >  .../bindings/sound/samsung,aries-wm8994.yaml  |  5 +----
> >  .../bindings/sound/samsung,midas-audio.yaml   |  2 --
> >  .../bindings/sound/samsung,odroid.yaml        |  9 +++------
> >  .../devicetree/bindings/sound/sound-dai.yaml  | 20 +++++++++++++++++++
> >  8 files changed, 42 insertions(+), 21 deletions(-)
> >  create mode 100644 Documentation/devicetree/bindings/sound/sound-dai.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml b/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
> > index 2e35aeaa8781..8b5be4b92f35 100644
> > --- a/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
> > +++ b/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
> > @@ -57,7 +57,7 @@ patternProperties:
> >            rate
> >
> >        sound-dai:
> > -        $ref: /schemas/types.yaml#/definitions/phandle-array
> > +        maxItems: 1
> >          description: phandle of the CPU DAI
> >
> >      patternProperties:
> > @@ -71,7 +71,7 @@ patternProperties:
> >
> >          properties:
> >            sound-dai:
> > -            $ref: /schemas/types.yaml#/definitions/phandle-array
> > +            maxItems: 1
>
> No min or max here. Links may have more than one codec.
>
> Ex:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts#n158

What do you mean? Every 'sound-dai' there only has 1 phande+args. Each
codec is a child node.

Rob