On 5/17/2023 12:10 AM, Krzysztof Kozlowski wrote:
On 16/05/2023 07:49, David Lin wrote:
Convert the NAU8315 audio CODEC bindings to DT schema.
Signed-off-by: David Lin CTLIN0@nuvoton.com
+allOf:
- $ref: dai-common.yaml#
+properties:
- compatible:
- enum:
- nuvoton,nau8315- nuvoton,nau8318- '#sound-dai-cells':
- const: 0
- enable-gpios:
- maxItems: 1
- description:
GPIO specifier for the chip's device enable input(EN) pin.If this option is not specified then driver does not managethe pin state (e.g. chip is always on).The only thing driver is doing is to toggle this pin. If it is missing the entire driver is noop, thus above comment is a bit funny. It probably should be mandatory pin. But I see it was there since beginning so ok.
Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
Best regards, Krzysztof
For "the chip is always on" might be make EN pin is always pull high in the schematic.
so driver didn't need to manage it. Of course, this driver will just have software switch.
Generally, the schematic will design an extra gpio for control.
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