Re: [PATCH] ASoC: dt-bindings: nau8824: Convert to dtschema

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On 5/15/2023 2:20 PM, Krzysztof Kozlowski wrote:
On 15/05/2023 04:47, AS50 CTLin0 wrote:
On 5/14/2023 2:38 AM, Krzysztof Kozlowski wrote:
On 12/05/2023 14:01, David Lin wrote:
Convert the NAU8824 audio CODEC bindings to DT schema.

Signed-off-by: David Lin <CTLIN0@xxxxxxxxxxx>
---
Thank you for your patch. There is something to discuss/improve.

+
+  nuvoton,sar-threshold-num:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Number of buttons supported.
+    minimum: 1
+    maximum: 4
+    default: 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
Your description mentions 8 buttons, so maybe it should be 8 here? Or
description needs a fix?
Driver just handle maxima 4 buttons for general application, but the the
above description is truly hardware capability with 8 buttons support.
Then it should be 8.

Best regards,
Krzysztof
Thanks. I will revise it in v2 patch.

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