linux-kernel - Re: [PATCH 1/2] ASoC: dt-bindings: Add adi,ssm3515 amp schema

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Message-ID: <ZFxAyeOteYo6nGlU@finisterre.sirena.org.uk>
Date:   Thu, 11 May 2023 10:11:37 +0900
From:   Mark Brown <broonie@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Conor Dooley <conor@...nel.org>,
        Martin Povišer <povik+lin@...ebit.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Nuno Sá <nuno.sa@...log.com>,
        asahi@...ts.linux.dev, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] ASoC: dt-bindings: Add adi,ssm3515 amp schema

On Wed, May 10, 2023 at 09:51:50AM +0200, Krzysztof Kozlowski wrote:
> On 09/05/2023 20:25, Conor Dooley wrote:
> > On Tue, May 09, 2023 at 06:38:27PM +0200, Martin Povišer wrote:

> >> +        00: 8.4 V Full-Scale Gain Mapping
> >> +        01: 12.6 V Full-Scale Gain Mapping
> >> +        10: 14 V Full-Scale Gain Mapping
> >> +        11: 15 V Full-Scale Gain Mapping

> > Putting register values into the DT does not seem correct, although
> > I know nothing about sound and will have to defer to Krzysztof & Co. on
> > that front.

> Depends whether these are really voltages or something else (e.g. gain)
> just related to voltage.

They are configuring the voltage range that the output will generate.

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