Re: [PATCH v3 1/2] ASoC: dt-bindings: Added schema for "nuvoton,nau8325"

[WTLI]

Rob Herring 於 3/4/2024 9:37 PM 寫道:
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>
> On Mon, Mar 04, 2024 at 06:15:22PM +0800, Seven Lee wrote:
> > Added a DT schema for describing nau8325 audio amplifiers.
> Present tense: Add a ...
>
> Please say more about this device. Features, link to datasheet, etc.

Are the following revisions correct?
Add a DT schema for describing nau8325 audio amplifiers. The key
features are as follows:
 - Low SPK_VDD Quiescent Current
 - Gain Setting with 2-wire interface
 - Powerful Stereo Class-D Amplifier
 - Low Output Noise
 - Low Current Shutdown Mode
 - Click-and Pop Suppression

More resources :
https://www.nuvoton.com/products/smart-home-audio/audio-amplifiers/class-d-series/nau8325yg/

> > Signed-off-by: Seven Lee <wtli@xxxxxxxxxxx>
> > ---
> >   .../bindings/sound/nuvoton,nau8325.yaml       | 74 +++++++++++++++++++
> >   1 file changed, 74 insertions(+)
> >   create mode 100755 Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml
> Schemas aren't executable. checkpatch.pl will tell you this.

yes, I will.

> > diff --git a/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml b/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml
> > new file mode 100755
> > index 000000000000..297d29462812
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml
> > @@ -0,0 +1,74 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/sound/nuvoton,nau8325.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: NAU8325 audio Amplifier
> > +
> > +maintainers:
> > +  - Seven Lee <WTLI@xxxxxxxxxxx>
> > +
> > +allOf:
> > +  - $ref: dai-common.yaml#
> > +
> > +properties:
> > +  compatible:
> > +    const: nuvoton,nau8325
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  nuvoton,vref-impedance:
> > +    description:
> > +      VREF impedance selection.
> > +    enum: ["Open", "25kOhm", "125kOhm", "2.5kOhm"]
> Use standard units (-ohms), not strings. For "open", just omit the
> property.

Is the description of the following modification correct?
nuvoton,vref-impedance:
  $ref: /schemas/types.yaml#/definitions/uint32
  description:
      The vref impedance to be used in KOhms. Voltage Reference impedance
      selection. VREF impedance selection.
  enum:
      - 0 # Disable tie off resistance
      - 1 # 25KOhms
      - 2 # 125KOhms
      - 3 # 2.5kOhms
    default: 2

> > +
> > +
> > +  nuvoton,dac-vref:
> > +    description: DAC Reference Voltage Setting.
> > +    enum: ["External VDDA", "1.5V", "1.6V", "1.7V"]
> Use standard units.

Is the description of the following modification correct?
  nuvoton,dac-vref:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
        The dac vref to be used in voltage. DAC reference voltage setting.
    enum:
        - 0 # VDDA
        - 1 # VDDA*1.5
        - 2 # VDDA*1.6
        - 3 # VDDA*1.7
    default: 2

> > +
> > +
> > +  nuvoton,alc-enable:
> > +    description:
> > +      Enable digital automatic level control (ALC) function.
> > +    type: boolean
> > +
> > +  nuvoton,clock-detection-disable:
> > +    description:
> > +      When clock detection is enabled, it will detect whether MCLK
> > +      and FS are within the range. MCLK range is from 2.048MHz to 24.576MHz.
> > +      FS range is from 8kHz to 96kHz. And also needs to detect the ratio
> > +      MCLK_SRC/LRCK of 256, 400 or 500, and needs to detect the BCLK
> > +      to make sure data is present. There needs to be at least 8 BCLK
> > +      cycles per Frame Sync.
> > +    type: boolean
> > +
> > +  nuvoton,clock-det-data:
> > +    description:
> > +      Request clock detection to require 2048 non-zero samples before enabling
> > +      the audio paths. If set then non-zero samples is required, otherwise it
> > +      doesn't matter.
> > +    type: boolean
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    i2c {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +        codec@21 {
> > +            compatible = "nuvoton,nau8325";
> > +            reg = <0x21>;
> > +            nuvoton,vref-impedance = "125kOhm";
> > +            nuvoton,dac-vref = "1.6V";
> > +            nuvoton,alc-enable;
> > +            nuvoton,clock-det-data;
> > +        };
> > +    };
> > --
> > 2.25.1
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