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

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: <479224f1-86f1-4561-af28-01b6354b4829@linaro.org>
Date: Thu, 24 Apr 2025 15:51:59 +0200
From: neil.armstrong@...aro.org
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 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@2 {
> +					reg = <2>;
> +
> +					pmic_glink_sbu: endpoint {
> +						remote-endpoint = <&wcd_usbss_sbu_mux>;
> +					};
> +				};
>   			};
>   		};
>   	};
> @@ -845,6 +862,42 @@ vreg_l7n_3p3: ldo7 {
>   	};
>   };
>   
> +&i2c3 {
> +	status = "okay";
> +
> +	wcd_usbss: typec-mux@e {
> +		compatible = "qcom,wcd9395-usbss", "qcom,wcd9390-usbss";
> +		reg = <0xe>;
> +
> +		vdd-supply = <&vreg_l15b_1p8>;
> +		reset-gpios = <&tlmm 152 GPIO_ACTIVE_HIGH>;
> +
> +		mode-switch;
> +		orientation-switch;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +
> +				wcd_usbss_sbu_mux: endpoint {
> +					remote-endpoint = <&pmic_glink_sbu>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +
> +				wcd_usbss_headset_out: endpoint {
> +					remote-endpoint = <&wcd_codec_headset_in>;
> +				};
> +			};
> +		};
> +	};
> +};
> +
>   &lpass_vamacro {
>   	pinctrl-0 = <&dmic01_default>, <&dmic23_default>;
>   	pinctrl-names = "default";
> @@ -973,6 +1026,11 @@ &pmih0108_eusb2_repeater {
>   	vdd3-supply = <&vreg_l5b_3p1>;
>   };
>   
> +&qup_i2c3_data_clk {
> +	/* Use internal I2C pull-up */
> +	bias-pull-up = <2200>;
> +};
> +
>   &qupv3_1 {
>   	status = "okay";
>   };
> 

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>