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From:   Varadarajan Narayanan <quic_varada@quicinc.com>
To:     <agross@kernel.org>, <andersson@kernel.org>,
        <konrad.dybcio@linaro.org>, <vkoul@kernel.org>,
        <kishon@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>,
        <mturquette@baylibre.com>, <sboyd@kernel.org>,
        <quic_wcheng@quicinc.com>, <linux-arm-msm@vger.kernel.org>,
        <linux-phy@lists.infradead.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>,
        <linux-clk@vger.kernel.org>
CC:     Varadarajan Narayanan <quic_varada@quicinc.com>
Subject: [PATCH v8 7/8] arm64: dts: qcom: ipq9574: Add USB related nodes
Date:   Wed, 5 Apr 2023 17:11:26 +0530
Message-ID: <55db8487a7cbf3354749dd2d3a35c05bfd9fa4fc.1680693149.git.quic_varada@quicinc.com>
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References: <cover.1680693149.git.quic_varada@quicinc.com>
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Add USB phy and controller related nodes

Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
---
 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@7d000: '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@8a00000: '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 | 120 ++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
index 43a3dbe..1242382 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
@@ -150,6 +150,33 @@
 		method = "smc";
 	};
 
+	reg_usb_3p3: s3300 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-name = "usb-phy-vdd-dummy";
+	};
+
+	reg_usb_1p8: s1800 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-name = "usb-phy-pll-dummy";
+	};
+
+	reg_usb_0p925: s0925 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <925000>;
+		regulator-max-microvolt = <925000>;
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-name = "usb-phy-dummy";
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -179,6 +206,52 @@
 		#size-cells = <1>;
 		ranges = <0 0 0 0xffffffff>;
 
+		usb_0_qusbphy: phy@7b000 {
+			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";
+
+			vdd-supply = <&reg_usb_0p925>;
+			vdda-pll-supply = <&reg_usb_1p8>;
+			vdda-phy-dpdm-supply = <&reg_usb_3p3>;
+
+			resets = <&gcc GCC_QUSB2_0_PHY_BCR>;
+			status = "disabled";
+		};
+
+		usb_0_qmpphy: phy@7d000 {
+			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";
+
+			vdda-pll-supply = <&reg_usb_1p8>;
+			vdda-phy-supply = <&reg_usb_0p925>;
+
+			status = "disabled";
+
+			#clock-cells = <0>;
+			clock-output-names = "usb0_pipe_clk";
+		};
+
 		pcie0_phy: phy@84000 {
 			compatible = "qcom,ipq9574-qmp-gen3x1-pcie-phy";
 			reg = <0x00084000 0x1000>;
@@ -548,6 +621,53 @@
 			status = "disabled";
 		};
 
+		usb3: usb@8a00000 {
+			compatible = "qcom,ipq9574-dwc3", "qcom,dwc3";
+			reg = <0x08af8800 0x400>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			clocks = <&gcc GCC_SNOC_USB_CLK>,
+				 <&gcc GCC_USB0_MASTER_CLK>,
+				 <&gcc GCC_ANOC_USB_AXI_CLK>,
+				 <&gcc GCC_USB0_SLEEP_CLK>,
+				 <&gcc GCC_USB0_MOCK_UTMI_CLK>;
+
+			clock-names = "cfg_noc",
+				      "core",
+				      "iface",
+				      "sleep",
+				      "mock_utmi";
+
+			assigned-clocks = <&gcc GCC_USB0_MASTER_CLK>,
+					  <&gcc GCC_USB0_MOCK_UTMI_CLK>;
+			assigned-clock-rates = <200000000>,
+					       <24000000>;
+
+			interrupts-extended = <&intc GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "pwr_event";
+
+			resets = <&gcc GCC_USB_BCR>;
+			status = "disabled";
+
+			dwc_0: usb@8a00000 {
+				compatible = "snps,dwc3";
+				reg = <0x8a00000 0xcd00>;
+				clocks = <&gcc GCC_USB0_MOCK_UTMI_CLK>;
+				clock-names = "ref";
+				interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+				phys = <&usb_0_qusbphy>, <&usb_0_qmpphy>;
+				phy-names = "usb2-phy", "usb3-phy";
+				tx-fifo-resize;
+				snps,is-utmi-l1-suspend;
+				snps,hird-threshold = /bits/ 8 <0x0>;
+				snps,dis_u2_susphy_quirk;
+				snps,dis_u3_susphy_quirk;
+				dr_mode = "host";
+			};
+		};
+
 		intc: interrupt-controller@b000000 {
 			compatible = "qcom,msm-qgic2";
 			reg = <0x0b000000 0x1000>,  /* GICD */
-- 
2.7.4