linux-kernel - Re: [PATCH v8 2/2] arm64: dts: qcom: sm6115: Add USB SS qmp phy node

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Message-ID: <1552aad0-4b84-b508-bc05-610edb3cccff@linaro.org>
Date:   Tue, 11 Apr 2023 10:47:30 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-phy@...ts.infradead.org
Cc:     agross@...nel.org, linux-kernel@...r.kernel.org,
        andersson@...nel.org, bhupesh.linux@...il.com,
        krzysztof.kozlowski@...aro.org, robh+dt@...nel.org,
        konrad.dybcio@...aro.org, kishon@...nel.org, vkoul@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Subject: Re: [PATCH v8 2/2] arm64: dts: qcom: sm6115: Add USB SS qmp phy node

On 10/04/2023 20:10, Bhupesh Sharma wrote:
> Add USB superspeed qmp phy node to dtsi.
> 
> Make sure that the various board dts files (which include sm4250.dtsi file)
> continue to work as intended.
> 
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> ---
>   .../boot/dts/qcom/sm4250-oneplus-billie2.dts  |  3 ++
>   arch/arm64/boot/dts/qcom/sm6115.dtsi          | 29 +++++++++++++++++--
>   .../boot/dts/qcom/sm6115p-lenovo-j606f.dts    |  3 ++
>   3 files changed, 33 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts b/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
> index a1f0622db5a0..75951fd439df 100644
> --- a/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
> +++ b/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
> @@ -242,6 +242,9 @@ &usb {
>   &usb_dwc3 {
>   	maximum-speed = "high-speed";
>   	dr_mode = "peripheral";
> +
> +	phys = <&usb_hsphy>;
> +	phy-names = "usb2-phy";
>   };
>   
>   &usb_hsphy {
> diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> index 2505c815c65a..b2ea8f13e827 100644
> --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> @@ -651,6 +651,31 @@ usb_hsphy: phy@...3000 {
>   			status = "disabled";
>   		};
>   
> +		usb_qmpphy: phy@...5000 {
> +			compatible = "qcom,sm6115-qmp-usb3-phy";
> +			reg = <0x0 0x01615000 0x0 0x200>;
> +
> +			clocks = <&gcc GCC_AHB2PHY_USB_CLK>,
> +				 <&gcc GCC_USB3_PRIM_CLKREF_CLK>,
> +				 <&gcc GCC_USB3_PRIM_PHY_COM_AUX_CLK>,
> +				 <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
> +			clock-names = "cfg_ahb",
> +				      "ref",
> +				      "com_aux",
> +				      "pipe";
> +
> +			resets = <&gcc GCC_USB3_PHY_PRIM_SP0_BCR>,
> +				 <&gcc GCC_USB3PHY_PHY_PRIM_SP0_BCR>;
> +			reset-names = "phy", "phy_phy";
> +
> +			#clock-cells = <0>;
> +			clock-output-names = "usb3_phy_pipe_clk_src";
> +
> +			#phy-cells = <0>;
> +
> +			status = "disabled";


Please excuse me if I'm wrong, but this will not work with the current 
PHY driver. It was not updated to handle new bindings. Please provide 
relevant driver patches too.

> +		};
> +
>   		qfprom@...0000 {
>   			compatible = "qcom,sm6115-qfprom", "qcom,qfprom";
>   			reg = <0x0 0x01b40000 0x0 0x7000>;
> @@ -1101,8 +1126,8 @@ usb_dwc3: usb@...0000 {
>   				compatible = "snps,dwc3";
>   				reg = <0x0 0x04e00000 0x0 0xcd00>;
>   				interrupts = <GIC_SPI 255 IRQ_TYPE_LEVEL_HIGH>;
> -				phys = <&usb_hsphy>;
> -				phy-names = "usb2-phy";
> +				phys = <&usb_hsphy>, <&usb_ssphy>;
> +				phy-names = "usb2-phy", "usb3-phy";
>   				iommus = <&apps_smmu 0x120 0x0>;
>   				snps,dis_u2_susphy_quirk;
>   				snps,dis_enblslpm_quirk;
> diff --git a/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts b/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> index 10c9d338446c..d60cc024749b 100644
> --- a/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> +++ b/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> @@ -280,6 +280,9 @@ &usb {
>   &usb_dwc3 {
>   	maximum-speed = "high-speed";
>   	dr_mode = "peripheral";
> +
> +	phys = <&usb_hsphy>;
> +	phy-names = "usb2-phy";
>   };
>   
>   &usb_hsphy {

-- 
With best wishes
Dmitry