linux-kernel - Re: [PATCH v6 6/6] arm64: dts: qcom: x1e78100-t14s: Enable audio headset support

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Message-ID: <Z-zweM9llVE-bzYc@hovoldconsulting.com>
Date: Wed, 2 Apr 2025 10:08:24 +0200
From: Johan Hovold <johan@...nel.org>
To: srinivas.kandagatla@...aro.org
Cc: peda@...ntia.se, broonie@...nel.org, andersson@...nel.org,
	krzk+dt@...nel.org, ivprusov@...utedevices.com,
	luca.ceresoli@...tlin.com, zhoubinbin@...ngson.cn,
	paulha@...nsource.cirrus.com, lgirdwood@...il.com, robh@...nel.org,
	conor+dt@...nel.org, konradybcio@...nel.org, perex@...ex.cz,
	tiwai@...e.com, dmitry.baryshkov@....qualcomm.com,
	linux-sound@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	johan+linaro@...nel.org,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Christopher Obbard <christopher.obbard@...aro.org>
Subject: Re: [PATCH v6 6/6] arm64: dts: qcom: x1e78100-t14s: Enable audio
 headset support

On Thu, Mar 27, 2025 at 10:06:33AM +0000, Srinivas Kandagatla wrote:
> From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> 
> On Lenovo ThinkPad T14s, the headset is connected via a HiFi mux to
> support CTIA and OMTP headsets. This switch is used to minimise pop and
> click during headset type switching.
> 
> Enable the mux controls required to power this switch along with wiring up
> gpio that control the headset switching.
> 
> Without this, headset audio will be very noisy and might see headset
> detection errors.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Tested-by: Christopher Obbard <christopher.obbard@...aro.org>

Looks good and both playback and recording works fine:

Reviewed-by: Johan Hovold <johan+linaro@...nel.org>
Tested-by: Johan Hovold <johan+linaro@...nel.org>

Johan