Re: [PATCH] ASoC: dt-bindings: nau8825: Convert to dtschema

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On 5/9/2023 2:22 PM, Krzysztof Kozlowski wrote:
On 09/05/2023 07:10, David Lin wrote:
Convert the NAU8825 audio CODEC bindings to DT schema.

Signed-off-by: David Lin <CTLIN0@xxxxxxxxxxx>
---
  .../devicetree/bindings/sound/nau8825.txt     | 111 ---------
  .../bindings/sound/nuvoton,nau8825.yaml       | 220 ++++++++++++++++++
  2 files changed, 220 insertions(+), 111 deletions(-)
  delete mode 100644 Documentation/devicetree/bindings/sound/nau8825.txt
  create mode 100644 Documentation/devicetree/bindings/sound/nuvoton,nau8825.yaml
Does not look like you tested the bindings. Please run `make
dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).

No, I had ever run 'make dt_binding_check', the result is no errors.

However, regarding your bot found the warnings, I check my environment
is not the latest dtschema and without yamllint.

diff --git a/Documentation/devicetree/bindings/sound/nau8825.txt b/Documentation/devicetree/bindings/sound/nau8825.txt
deleted file mode 100644
index a9c34526f4cb..000000000000
--- a/Documentation/devicetree/bindings/sound/nau8825.txt
+++ /dev/null
@@ -1,111 +0,0 @@
-Nuvoton NAU8825 audio codec
(...)

+  nuvoton,jkdet-enable:
+    description:
+      Enable jack detection via JKDET pin.
+    type: boolean
+
+  nuvoton,jkdet-pull-enable:
+    description:
+      Enable JKDET pin pull.
+      If set - pin pull enabled, otherwise pin in high impedance state.
+    type: boolean
+
+  nuvoton,jkdet-pull-up:
+    description:
+      Pull-up JKDET pin.
+      If set then JKDET pin is pull up, otherwise pull down.
+    type: boolean
+
+  nuvoton,jkdet-polarity:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      JKDET pin polarity.
+    enum:
+      - 0 # active high
+      - 1 # active low
Since this is optional:
default: ?

Same in other places.
OK~I will add default value to these optional properties.
+
+  nuvoton,vref-impedance:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      VREF Impedance selection.
+    enum:
+      - 0 # Open
+      - 1 # 25 kOhm
+      - 2 # 125 kOhm
+      - 3 # 2.5 kOhm
+
+  nuvoton,micbias-voltage:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Micbias voltage level.
+    enum:
+      - 0 # VDDA
+      - 1 # VDDA
+      - 2 # VDDA * 1.1
+      - 3 # VDDA * 1.2
+      - 4 # VDDA * 1.3
+      - 5 # VDDA * 1.4
+      - 6 # VDDA * 1.53
+      - 7 # VDDA * 1.53
+
+  nuvoton,sar-threshold-num:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Number of buttons supported.
+    minimum: 1
+    maximum: 4
+
+  nuvoton,sar-threshold:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description:
+      Impedance threshold for each button. Array that contains up to 8 buttons
+      configuration. SAR value is calculated as
+      SAR = 255 * MICBIAS / SAR_VOLTAGE * R / (2000 + R) where MICBIAS is
+      configured by 'nuvoton,micbias-voltage', SAR_VOLTAGE is configured by
+      'nuvoton,sar-voltage', R - button impedance.
+      Refer datasheet section 10.2 for more information about threshold
+      calculation.
+    minItems: 1
+    maxItems: 4
+    items:
+      minimum: 0
+      maximum: 255
+
+  nuvoton,sar-hysteresis:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Button impedance measurement hysteresis.
+
+  nuvoton,sar-voltage:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Reference voltage for button impedance measurement.
+    enum:
+      - 0 # VDDA
+      - 1 # VDDA
+      - 2 # VDDA * 1.1
+      - 3 # VDDA * 1.2
+      - 4 # VDDA * 1.3
+      - 5 # VDDA * 1.4
+      - 6 # VDDA * 1.53
+      - 7 # VDDA * 1.53
+
+  nuvoton,sar-compare-time:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      SAR compare time.
+    enum:
+      - 0 # 500ns
+      - 1 # 1us
+      - 2 # 2us
+      - 3 # 4us
+
+  nuvoton,sar-sampling-time:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      SAR sampling time.
+    enum:
+      - 0 # 2us
+      - 1 # 4us
+      - 2 # 8us
+      - 3 # 16us
+
+  nuvoton,short-key-debounce:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Button short key press debounce time.
+    enum:
+      - 0 # 30 ms
+      - 1 # 50 ms
+      - 2 # 100 ms
+
+  nuvoton,jack-insert-debounce:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      number from 0 to 7 that sets debounce time to 2^(n+2) ms.
maximum: 7

+
+  nuvoton,jack-eject-debounce:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      number from 0 to 7 that sets debounce time to 2^(n+2) ms
maximum: 7
Regarding the description have limitation for range, so your comment is
great.

+
+  nuvoton,crosstalk-enable:
+    description:
+      make crosstalk function enable if set.
+    type: boolean
+
+  nuvoton,adcout-drive-strong:
+    description:
+      make the drive strength of ADCOUT IO PIN strong if set.
+      Otherwise, the drive keeps normal strength.
+    type: boolean
+
+  nuvoton,adc-delay-ms:
+    description:
+      Delay (in ms) to make input path stable and avoid pop noise.
+      The default value is 125 and range between 125 to 500 ms.
+    minimum: 125
+    maximum: 500
+
+  clocks:
+   description:
+     list of phandle and clock specifier pairs according to common clock
+     bindings for the clocks described in clock-names.
Drop description. maxItems: 1.
OK~I will add  it.

+
+  clock-names:
+   description:
+     should include "mclk" for the MCLK master clock.
No, you need to list entries with items.
OK~I will add  it.

+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/tegra-gpio.h>
+    #include <dt-bindings/soc/tegra-pmc.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        headset: nau8825@1a {
Node names should be generic, audio-codec for example.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
OK~I can follow it.
+            compatible = "nuvoton,nau8825";
+            reg = <0x1a>;
Best regards,
Krzysztof

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