linux-kernel - Re: [PATCH v3 8/8] arm64: dts: qcom: sdm660-xiaomi-lavender: Add USB

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Date:   Thu, 11 Nov 2021 22:40:29 +0100
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     Dang Huynh <danct12@...eup.net>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Alexey Min <alexey.min@...il.com>,
        Caleb Connolly <caleb@...nolly.tech>,
        Martin Botka <martin.botka@...ainline.org>
Subject: Re: [PATCH v3 8/8] arm64: dts: qcom: sdm660-xiaomi-lavender: Add USB



On 11.11.2021 04:16, Dang Huynh wrote:
> From: Alexey Min <alexey.min@...il.com>
> 
> Enable and configure DWC3 and QUSB2 PHY to enable USB
> functionality on the Redmi Note 7.
> 
> Signed-off-by: Alexey Min <alexey.min@...il.com>
> Co-developed-by: Dang Huynh <danct12@...eup.net>
> Signed-off-by: Dang Huynh <danct12@...eup.net>
> ---
>  .../boot/dts/qcom/sdm660-xiaomi-lavender.dts  | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts b/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
> index 712392545c2e..bf7f334b0b5c 100644
> --- a/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
> @@ -80,6 +80,15 @@ framebuffer_mem: memory@...00000 {
>  			no-map;
>  		};
>  	};
> +
> +	/*
> +	 * Until we hook up type-c detection, we
> +	 * have to stick with this. But it works.
> +	 */
> +	extcon_usb: extcon-usb {
> +		compatible = "linux,extcon-usb-gpio";
> +		id-gpio = <&tlmm 58 GPIO_ACTIVE_HIGH>;
> +	};
>  };
>  
>  &blsp1_uart2 {
> @@ -96,6 +105,13 @@ &pon_resin {
>  	linux,code = <KEY_VOLUMEDOWN>;
>  };
>  
> +&qusb2phy {
> +	status = "okay";
> +
> +	vdd-supply = <&vreg_l1b_0p925>;
> +	vdda-phy-dpdm-supply = <&vreg_l7b_3p125>;
> +};
> +
>  &rpm_requests {
>  	pm660l-regulators {
>  		compatible = "qcom,rpm-pm660l-regulators";
> @@ -401,3 +417,12 @@ &sdhc_2 {
>  &tlmm {
>  	gpio-reserved-ranges = <8 4>;
>  };
> +
> +&usb3 {
> +	status = "okay";
> +};
> +
> +&usb3_dwc3 {
> +	dr_mode = "peripheral";
> +	extcon = <&extcon_usb>;
> +};

Reviewed-by: Konrad Dybcio <konrad.dybcio@...ainline.org>

On a side note, I wonder if any of the more interesting USB-C lanes (say DP out or USB3 [at least for host mode])
are connected on this device..

Konrad