linux-kernel - Re: [PATCH] arm64: dts: qcom: sc8280xp-x13s: correct analogue microphone route

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Date: Fri, 26 Jan 2024 13:21:07 +0000
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sc8280xp-x13s: correct analogue
 microphone route

Thanks Krzystof,

On 25/01/2024 15:45, Krzysztof Kozlowski wrote:
> Starting with Qualcomm SM8350 SoC, so Low Power Audio SubSystem (LPASS)
> block version v9.2, the register responsible for TX SMIC MUXn muxes is
> different.  The LPASS TX macro codec driver is being fixed to handle
> that difference, so the DTS must be updated as well for new widget name.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---
> 
Unfortunately this is breaking mic on X13s.

--srini
> This unfortunately depends on:
> https://lore.kernel.org/alsa-devel/20240125153110.410295-1-krzysztof.kozlowski@linaro.org/T/#m62da29e6b80fa419e6339d3c27439894cb04cecb
> 
> and my tries to make it backwards compatible failed.
> ---
>   arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> index def3976bd5bb..0165492e4e11 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> @@ -986,7 +986,7 @@ &sound {
>   		"VA DMIC0", "VA MIC BIAS1",
>   		"VA DMIC1", "VA MIC BIAS1",
>   		"VA DMIC2", "VA MIC BIAS3",
> -		"TX SWR_ADC1", "ADC2_OUTPUT";
> +		"TX SWR_INPUT1", "ADC2_OUTPUT";
>   
>   	wcd-playback-dai-link {
>   		link-name = "WCD Playback";