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

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Date: Mon, 15 Apr 2024 10:32:29 +0800
From: WTLI <wtli@...oton.com>
To: Rob Herring <robh@...nel.org>
Cc: broonie@...nel.org, lgirdwood@...il.com, alsa-devel@...a-project.org,
 devicetree@...r.kernel.org, linux-sound@...r.kernel.org,
 krzysztof.kozlowski+dt@...aro.org, linux-kernel@...r.kernel.org,
 conor+dt@...nel.org, perex@...ex.cz, tiwai@...e.com, YHCHuang@...oton.com,
 KCHSU0@...oton.com, CTLIN0@...oton.com, SJLIN0@...oton.com,
 scott6986@...il.com, supercraig0719@...il.com, dardar923@...il.com,
 edson.drosdeck@...il.com, u.kleine-koenig@...gutronix.de
Subject: Re: [PATCH 1/3] ASoC: dt-bindings: nau8821: Add delay control for ADC


Rob Herring 於 4/12/2024 11:52 PM 寫道:
> CAUTION - External Email: Do not click links or open attachments unless you acknowledge the sender and content.
>
>
> 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@...oton.com>
>> ---
>>   .../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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