linux-kernel - Re: [PATCH v3 3/3] arm64: dts: qcom: sm6115: Add USB SS qmp phy node

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Message-ID: <1b5f35ac-05ee-eae5-e17a-d34e2d988e43@linaro.org>
Date:   Sat, 7 Jan 2023 11:24:10 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bjorn Andersson <andersson@...nel.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        agross@...nel.org, bhupesh.linux@...il.com,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        krzysztof.kozlowski@...aro.org
Subject: Re: [PATCH v3 3/3] arm64: dts: qcom: sm6115: Add USB SS qmp phy node



On 6.01.2023 18:46, Bjorn Andersson wrote:
> On Thu, Dec 15, 2022 at 03:15:32PM +0530, Bhupesh Sharma wrote:
>> Add USB superspeed qmp phy node to dtsi.
>> Make sure that the oneplus board dts (which includes the
>> sm4250.dtsi) continues 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          | 37 ++++++++++++++++++-
>>  2 files changed, 38 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 3f39f25e0721e..4f0d65574448b 100644
>> --- a/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
>> +++ b/arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dts
>> @@ -232,6 +232,9 @@ &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 e4ce135264f3d..030763187cc3f 100644
>> --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
>> @@ -579,6 +579,39 @@ usb_hsphy: phy@...3000 {
>>  			status = "disabled";
>>  		};
>>  
>> +		usb_qmpphy: phy@...5000 {
>> +			compatible = "qcom,sm6115-qmp-usb3-phy";
>> +			reg = <0x01615000 0x200>;
>> +			clocks = <&gcc GCC_USB3_PRIM_PHY_COM_AUX_CLK>,
>> +				 <&gcc GCC_USB3_PRIM_CLKREF_CLK>,
>> +				 <&gcc GCC_AHB2PHY_USB_CLK>;
>> +			clock-names = "com_aux",
>> +				      "ref",
>> +				      "cfg_ahb";
>> +			resets = <&gcc GCC_USB3_PHY_PRIM_SP0_BCR>,
>> +				 <&gcc GCC_USB3PHY_PHY_PRIM_SP0_BCR>;
>> +			reset-names = "phy", "phy_phy";
>> +			status = "disabled";
>> +			#clock-cells = <1>;
>> +			#address-cells = <1>;
>> +			#size-cells = <1>;
>> +			ranges;
>> +
>> +			usb_ssphy: phy@...5200 {
> 
> These patches looks good, but before introducing any
> qcom,sm6115-qmp-usb3-phy in any DT, could we please update the binding
> and driver to the new flattened format - to avoid having to revisit this
> when we try to introduce DP (which I'm guessing this instance has?)
FWIW there's only a single DSI intf (and a single disabled one) on this SoC.

Konrad
> 
> Regards,
> Bjorn
> 
>> +				reg = <0x01615200 0x200>,
>> +				      <0x01615400 0x200>,
>> +				      <0x01615c00 0x400>,
>> +				      <0x01615600 0x200>,
>> +				      <0x01615800 0x200>,
>> +				      <0x01615a00 0x100>;
>> +				#phy-cells = <0>;
>> +				#clock-cells = <1>;
>> +				clocks = <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
>> +				clock-names = "pipe0";
>> +				clock-output-names = "usb3_phy_pipe_clk_src";
>> +			};
>> +		};
>> +
>>  		qfprom@...0000 {
>>  			compatible = "qcom,sm6115-qfprom", "qcom,qfprom";
>>  			reg = <0x01b40000 0x7000>;
>> @@ -1023,8 +1056,8 @@ usb_dwc3: usb@...0000 {
>>  				compatible = "snps,dwc3";
>>  				reg = <0x04e00000 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;
>> -- 
>> 2.38.1
>>