linux-kernel - Re: [PATCH RFC/WIP 3/4] arm64: dts: qcom: sm8750-mtp: Enable USB headset and Type-C altmode

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Message-ID: <3818d7c2-187f-409f-8479-bcdd6c0e9be3@linaro.org>
Date: Thu, 24 Apr 2025 16:39:29 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: Jessica Zhang <jesszhan@...cinc.com>, Abhinav Kumar
 <abhinavk@...cinc.com>, Abel Vesa <abel.vesa@...aro.org>,
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC/WIP 3/4] arm64: dts: qcom: sm8750-mtp: Enable USB
 headset and Type-C altmode

On 24/04/2025 15:04, Krzysztof Kozlowski wrote:
> MTP8750 does not have audio jack connected and relies on USB mux
> (WCD9395).  Add necessary nodes for proper audio headset support along
> with USB Type-C altmode and orientation.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 58 +++++++++++++++++++++++++++++++++
>  1 file changed, 58 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
> index bd0918e8a7a7e03530eea577c7609454fecfdaf7..c3470e1daa6b7f31196645759be23fb168ce8eb7 100644
> --- a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
> @@ -53,6 +53,15 @@ wcd939x: audio-codec {
>  		vdd-mic-bias-supply = <&vreg_bob1>;
>  
>  		#sound-dai-cells = <1>;
> +
> +		mode-switch;
> +		orientation-switch;
> +
> +		port {
> +			wcd_codec_headset_in: endpoint {
> +				remote-endpoint = <&wcd_usbss_headset_out>;
> +			};
> +		};
>  	};
>  
>  	chosen {
> @@ -220,6 +229,14 @@ port@1 {
>  					pmic_glink_ss_in: endpoint {

port@0 and port@1 need updates for endpoints as well. I will do that in v2.



Best regards,
Krzysztof