linux-kernel - Re: [PATCH v2 2/3] ASoC: dt-bindings: sama7g5-pdmc: add microchip,startup-delay-us binding

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Message-ID: <Y/TaIELG2HY/zvNJ@sirena.org.uk>
Date:   Tue, 21 Feb 2023 14:50:08 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Claudiu.Beznea@...rochip.com
Cc:     krzysztof.kozlowski@...aro.org, robh@...nel.org,
        lgirdwood@...il.com, krzysztof.kozlowski+dt@...aro.org,
        perex@...ex.cz, tiwai@...e.com, Nicolas.Ferre@...rochip.com,
        alexandre.belloni@...tlin.com, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 2/3] ASoC: dt-bindings: sama7g5-pdmc: add
 microchip,startup-delay-us binding

On Tue, Feb 21, 2023 at 10:52:54AM +0000, Claudiu.Beznea@...rochip.com wrote:
> On 21.02.2023 11:23, Krzysztof Kozlowski wrote:

> >> PDMC can work with different kind of microphones, thus different boards
> >> could have different microphones. Depending on microphone type the PDMC
> >> would need to wait longer or shorter period than the default chosen period
> >> to filter unwanted noise. Thus the need of having this specified though
> >> device tree. Would you prefer to have this in commit message?

> > I believe you also had explain it to me, thus as you can see having it
> > in commit msg would spare you two questions...

> Right, I'll add it in the next version.

TBH this is really standard stuff for audio hardware, having to leave
board specific settling delays is very normal.

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