linux-kernel - Re: [PATCH 1/3] ASoC: dt-bindings: samsung,midas-audio: Add GPIO-based headset jack detection

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Date: Mon, 6 May 2024 08:28:59 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Artur Weber <aweber.kernel@...il.com>,
 Sylwester Nawrocki <s.nawrocki@...sung.com>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
 Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
 Alim Akhtar <alim.akhtar@...sung.com>, alsa-devel@...a-project.org,
 linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-samsung-soc@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH 1/3] ASoC: dt-bindings: samsung,midas-audio: Add
 GPIO-based headset jack detection

On 03/05/2024 20:55, Artur Weber wrote:
> Some Samsung devices that share the midas-audio driver use a GPIO-based
> approach to headset jack detection, as opposed to using the built-in
> jack detection provided by the wm8994 driver.
> 
> Add DT configuration values that allow for describing these setups.
> 
> Signed-off-by: Artur Weber <aweber.kernel@...il.com>
> ---
>  .../bindings/sound/samsung,midas-audio.yaml        | 30 ++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
> index 6ec80f529d84..9f521131f2b3 100644
> --- a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
> +++ b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
> @@ -61,6 +61,36 @@ properties:
>      maxItems: 1
>      description: GPIO pin for line out selection
>  
> +  headset-detect-gpios:
> +    maxItems: 1
> +    description: GPIO for detection of headset insertion
> +
> +  headset-key-gpios:
> +    maxItems: 1
> +    description: GPIO for detection of headset key press
> +
> +  io-channels:
> +    maxItems: 1
> +    description: IO channel to read micbias voltage for headset detection
> +
> +  io-channel-names:
> +    const: headset-detect
> +
> +  headset-4pole-threshold-microvolt:

You need vendor prefix for this and next property.

> +    minItems: 2
> +    maxItems: 2
> +    description: |

Do not need '|' unless you need to preserve formatting.



Best regards,
Krzysztof