Re: [PATCH v5 1/2] ASoC: google: dt-bindings: modify machine bindings for two MICs case

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HI, Rob,

Thank you for the comments.


On Fri, Nov 6, 2020 at 2:43 AM Rob Herring <robh@xxxxxxxxxx> wrote:
>
> On Tue, Nov 03, 2020 at 06:30:50PM +0800, Ajye Huang wrote:
> > Add a property "dmic-gpios" for switching between two MICs.
> >
> > Signed-off-by: Ajye Huang <ajye_huang@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > ---
> >  .../bindings/sound/google,sc7180-trogdor.yaml | 58 +++++++++++++++++++
> >  1 file changed, 58 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml b/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml
> > index efc34689d6b5..9e0505467e57 100644
> > --- a/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml
> > +++ b/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml
> > @@ -34,6 +34,9 @@ properties:
> >    "#size-cells":
> >      const: 0
> >
> > +  dmic-gpios:
> > +    description: GPIO for switching between DMICs
>
> Need to define how many (maxItems: 1).

Yes, I will add in the v6 version.

>
> > +
> >  patternProperties:
> >    "^dai-link(@[0-9])?$":
> >      description:
> > @@ -81,6 +84,7 @@ additionalProperties: false
> >  examples:
> >
> >    - |
> > +    //Example 1
> >      sound {
> >          compatible = "google,sc7180-trogdor";
> >          model = "sc7180-rt5682-max98357a-1mic";
> > @@ -128,3 +132,57 @@ examples:
> >              };
> >          };
> >      };
> > +
> > +  - |
> > +    //Example 2 (2mic case)
> > +    sound {
> > +        compatible = "google,sc7180-trogdor";
> > +        model = "sc7180-rt5682-max98357a-2mic";
> > +
> > +        audio-routing =
> > +                    "Headphone Jack", "HPOL",
> > +                    "Headphone Jack", "HPOR";
> > +
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        dmic-gpios = <&tlmm 86 0>;
>
> Do we really need another example for this? Can't you just add it to the
> existing example?

I think just keep One example. I will remove the example2 and put
dmic-gpios = <&tlmm 86 0>; in the first example and
modify the model from "sc7180-rt5682-max98357a-1mic" to
"sc7180-rt5682-max98357a-2mic". It looks clear.

>
> > +
> > +        dai-link@0 {
> > +            link-name = "MultiMedia0";
> > +            reg = <0>;
> > +            cpu {
> > +                sound-dai = <&lpass_cpu 0>;
> > +            };
> > +
> > +            codec {
> > +                sound-dai = <&alc5682 0>;
> > +            };
> > +        };
> > +
> > +        dai-link@1 {
> > +            link-name = "MultiMedia1";
> > +            reg = <1>;
> > +            cpu {
> > +                sound-dai = <&lpass_cpu 1>;
> > +            };
> > +
> > +            codec {
> > +                sound-dai = <&max98357a>;
> > +            };
> > +        };
> > +
> > +        dai-link@2 {
> > +            link-name = "MultiMedia2";
> > +            reg = <2>;
> > +            cpu {
> > +                sound-dai = <&lpass_hdmi 0>;
> > +            };
> > +
> > +            codec {
> > +                sound-dai = <&msm_dp>;
> > +            };
> > +        };
> > +    };
> > +
> > +...
> > --
> > 2.25.1
> >



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