Re: [PATCH 1/3] ASoC: dt-bindings: nau8821: Add delay control for ADC

From: WTLI
Date: Sun Apr 14 2024 - 22:32:53 EST



Rob Herring 於 4/12/2024 11:52 PM 寫道:
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On Fri, Apr 12, 2024 at 06:35:52PM +0800, Seven Lee wrote:
Change the original fixed delay to the assignment from the property. It
will make it more flexible to different platforms to avoid pop noise at
the beginning of recording.

Signed-off-by: Seven Lee <wtli@xxxxxxxxxxx>
---
.../devicetree/bindings/sound/nuvoton,nau8821.yaml | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/nuvoton,nau8821.yaml b/Documentation/devicetree/bindings/sound/nuvoton,nau8821.yaml
index 054b53954ac3..a726c5a9b067 100644
--- a/Documentation/devicetree/bindings/sound/nuvoton,nau8821.yaml
+++ b/Documentation/devicetree/bindings/sound/nuvoton,nau8821.yaml
@@ -103,6 +103,13 @@ properties:
just limited to the left adc for design demand.
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.
No need to state constraints in prose.

okay, I will fix it.


+ minimum: 125
+ maximum: 500
+ default: 125
+
'#sound-dai-cells':
const: 0

@@ -136,6 +143,7 @@ examples:
nuvoton,jack-eject-debounce = <0>;
nuvoton,dmic-clk-threshold = <3072000>;
nuvoton,dmic-slew-rate = <0>;
+ nuvoton,nuvoton,adc-delay-ms = <125>;
#sound-dai-cells = <0>;
};
};
--
2.25.1

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