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

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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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