linux-kernel - Re: [PATCH v11 7/9] arm64: dts: qcom: ipq9574: Add USB related nodes

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Date:   Mon, 15 May 2023 16:06:29 +0530
From:   Kathiravan T <quic_kathirav@...cinc.com>
To:     Varadarajan Narayanan <quic_varada@...cinc.com>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <vkoul@...nel.org>,
        <kishon@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <gregkh@...uxfoundation.org>, <mturquette@...libre.com>,
        <sboyd@...nel.org>, <quic_wcheng@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-phy@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-usb@...r.kernel.org>, <linux-clk@...r.kernel.org>
Subject: Re: [PATCH v11 7/9] arm64: dts: qcom: ipq9574: Add USB related nodes


On 5/9/2023 5:24 PM, Varadarajan Narayanan wrote:
> Add USB phy and controller related nodes
>
> SS PHY need two supplies and HS PHY needs three supplies. 0.925V
> and 3.3V are from fixed regulators and 1.8V is generated from
> PMIC's LDO
>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> ---
>   Changes in v11:
> 	- Rename dwc_0 -> usb_0_dwc3
>   Changes in v10:
> 	- Fix regulator definitions
>   Changes in v8:
> 	- Change clocks order to match the bindings
>   Changes in v7:
> 	- Change com_aux -> cfg_ahb
>   Changes in v6:
> 	- Introduce fixed regulators for the phy
> 	- Resolved all 'make dtbs_check' messages
>
>   Changes in v5:
> 	- Fix additional comments
> 	- Edit nodes to match with qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> 	- 'make dtbs_check' giving the following messages since
> 	  ipq9574 doesn't have power domains. Hope this is ok
>
> 		/local/mnt/workspace/varada/varda-linux/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dtb: phy@...00: 'power-domains' is a required property
>          	From schema: /local/mnt/workspace/varada/varda-linux/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> 		/local/mnt/workspace/varada/varda-linux/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dtb: usb@...0000: 'power-domains' is a required property
>          	From schema: /local/mnt/workspace/varada/varda-linux/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
>
>   Changes in v4:
> 	- Use newer bindings without subnodes
> 	- Fix coding style issues
>
>   Changes in v3:
> 	- Insert the nodes at proper location
>
>   Changes in v2:
> 	- Fixed issues flagged by Krzysztof
> 	- Fix issues reported by make dtbs_check
> 	- Remove NOC related clocks (to be added with proper
> 	  interconnect support)
> ---
>   arch/arm64/boot/dts/qcom/ipq9574.dtsi | 104 ++++++++++++++++++++++++++++++++++
>   1 file changed, 104 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> index 93b4ba9..42b61f6 100644
> --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> @@ -150,6 +150,24 @@
>   		method = "smc";
>   	};
>   
> +	fixed_3p3: s3300 {
> +		compatible = "regulator-fixed";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		regulator-boot-on;
> +		regulator-always-on;
> +		regulator-name = "fixed_3p3";
> +	};
> +
> +	fixed_0p925: s0925 {
> +		compatible = "regulator-fixed";
> +		regulator-min-microvolt = <925000>;
> +		regulator-max-microvolt = <925000>;
> +		regulator-boot-on;
> +		regulator-always-on;
> +		regulator-name = "fixed_0p925";
> +	};
> +
>   	reserved-memory {
>   		#address-cells = <2>;
>   		#size-cells = <2>;
> @@ -191,6 +209,45 @@
>   			reg = <0x00060000 0x6000>;
>   		};
>   
> +		usb_0_qusbphy: phy@...00 {
> +			compatible = "qcom,ipq9574-qusb2-phy";
> +			reg = <0x0007b000 0x180>;
> +			#phy-cells = <0>;
> +
> +			clocks = <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
> +				 <&xo_board_clk>;
> +			clock-names = "cfg_ahb",
> +				      "ref";
> +
> +			resets = <&gcc GCC_QUSB2_0_PHY_BCR>;
> +			status = "disabled";
> +		};
> +
> +		usb_0_qmpphy: phy@...00 {
> +			compatible = "qcom,ipq9574-qmp-usb3-phy";
> +			reg = <0x0007d000 0xa00>;
> +			#phy-cells = <0>;
> +
> +			clocks = <&gcc GCC_USB0_AUX_CLK>,
> +				 <&xo_board_clk>,
> +				 <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
> +				 <&gcc GCC_USB0_PIPE_CLK>;
> +			clock-names = "aux",
> +				      "ref",
> +				      "cfg_ahb",
> +				      "pipe";
> +
> +			resets = <&gcc GCC_USB0_PHY_BCR>,
> +				 <&gcc GCC_USB3PHY_0_PHY_BCR>;
> +			reset-names = "phy",
> +				      "phy_phy";
> +
> +			status = "disabled";
> +
> +			#clock-cells = <0>;
> +			clock-output-names = "usb0_pipe_clk";
> +		};
> +
>   		pcie0_phy: phy@...00 {
>   			compatible = "qcom,ipq9574-qmp-gen3x1-pcie-phy";
>   			reg = <0x00084000 0x1000>;
> @@ -560,6 +617,53 @@
>   			status = "disabled";
>   		};
>   
> +		usb3: usb@...0000 {

node address should be updated to 8af8800 ?

Thanks,