linux-kernel - Re: [PATCH 1/3] ASoC: dt-bindings: wcd93xx: add bindings for audio switch controlling hp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4ie22uuz5tpg77jto3c3hec6lhonr44hrjda7jk655axlaxvba@u3atd4gcyghn>
Date: Wed, 19 Mar 2025 12:01:37 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: srinivas.kandagatla@...aro.org
Cc: broonie@...nel.org, andersson@...nel.org, lgirdwood@...il.com,
        robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
        konradybcio@...nel.org, perex@...ex.cz, tiwai@...e.com,
        dmitry.baryshkov@...aro.org, linux-sound@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, johan+linaro@...nel.org
Subject: Re: [PATCH 1/3] ASoC: dt-bindings: wcd93xx: add bindings for audio
 switch controlling hp

On Wed, Mar 19, 2025 at 09:16:35AM +0000, srinivas.kandagatla@...aro.org wrote:
> From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> 
> On some platforms to minimise pop and click during switching between
> CTIA and OMTP headset an additional HiFi Switch is used. Most common
> case is that this switch is switched on by default, but on some
> platforms this needs a regulator enable.

Is this regulator supplying the codec or some external component? In the
latter case it's likely that it should not be a part of WCD bindings.

> This patch adds required bindings to add such regulator.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>  .../devicetree/bindings/sound/qcom,wcd93xx-common.yaml        | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd93xx-common.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd93xx-common.yaml
> index f78ba148ad25..fa00570caf24 100644
> --- a/Documentation/devicetree/bindings/sound/qcom,wcd93xx-common.yaml
> +++ b/Documentation/devicetree/bindings/sound/qcom,wcd93xx-common.yaml
> @@ -26,6 +26,10 @@ properties:
>    vdd-mic-bias-supply:
>      description: A reference to the 3.8V mic bias supply
>  
> +  vdd-hp-switch-supply:
> +    description: A reference to the audio switch supply
> +      for switching CTIA/OMTP Headset
> +
>    qcom,tx-device:
>      $ref: /schemas/types.yaml#/definitions/phandle-array
>      description: A reference to Soundwire tx device phandle
> -- 
> 2.39.5
> 

-- 
With best wishes
Dmitry