[PATCH 09/10] ARM: dts: qcom: msm8974: add the HSIC USB controller

[Dmitry Baryshkov]

The MSM8974 HSIC USB host - a third Chipidea controller with a
dedicated HSIC PHY on the special hsic_strobe/hsic_data pads - is not
described, leaving boards with HSIC-attached hubs or modems without
upstream support.

Add the controller and PHY nodes. The PHY is a ULPI bus driver present
inside the ulpi subnode.

Assisted-by: Claude:claude-fable-5
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
---
 arch/arm/boot/dts/qcom/qcom-msm8974.dtsi | 71 ++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/arch/arm/boot/dts/qcom/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom/qcom-msm8974.dtsi
index bac3c8772e0a..72cd369927b2 100644
--- a/arch/arm/boot/dts/qcom/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom/qcom-msm8974.dtsi
@@ -760,6 +760,49 @@ usb3_ss_phy: phy at f92f8830 {
 			status = "disabled";
 		};
 
+		usb_hsic: usb at f9a00000 {
+			compatible = "qcom,ci-hdrc";
+			reg = <0xf9a00000 0x200>,
+			      <0xf9a00200 0x200>;
+			interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 148 IRQ_TYPE_EDGE_RISING>;
+			assigned-clocks = <&gcc GCC_USB_HSIC_SYSTEM_CLK>,
+					  <&gcc GCC_USB_HSIC_CLK>,
+					  <&gcc GCC_USB_HSIC_IO_CAL_CLK>;
+			assigned-clock-rates = <75000000>,
+					       <480000000>,
+					       <9600000>;
+			clocks = <&gcc GCC_USB_HSIC_AHB_CLK>,
+				 <&gcc GCC_USB_HSIC_SYSTEM_CLK>;
+			clock-names = "iface", "core";
+			resets = <&gcc GCC_USB_HS_HSIC_BCR>;
+			reset-names = "core";
+			power-domains = <&gcc USB_HS_HSIC_GDSC>;
+			phys = <&usb_hsic_phy>;
+			phy-names = "usb-phy";
+			phy_type = "ulpi";
+			dr_mode = "host";
+			ahb-burst-config = <0>;
+
+			status = "disabled";
+
+			ulpi {
+				usb_hsic_phy: phy {
+					compatible = "qcom,usb-hsic-phy-msm8974",
+						     "qcom,usb-hsic-phy";
+					clocks = <&gcc GCC_USB_HSIC_CLK>,
+						 <&gcc GCC_USB_HSIC_IO_CAL_CLK>,
+						 <&gcc GCC_USB_HSIC_IO_CAL_SLEEP_CLK>;
+					clock-names = "phy", "cal", "cal_sleep";
+					#phy-cells = <0>;
+
+					pinctrl-names = "init", "default";
+					pinctrl-0 = <&hsic_gpio_state>;
+					pinctrl-1 = <&hsic_state>;
+				};
+			};
+		};
+
 		usb: usb at f9a55000 {
 			compatible = "qcom,ci-hdrc";
 			reg = <0xf9a55000 0x200>,
@@ -1677,6 +1720,34 @@ tlmm: pinctrl at fd510000 {
 			#interrupt-cells = <2>;
 			interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
 
+			hsic_gpio_state: hsic-gpio-state {
+				data-strobe-pins {
+					pins = "gpio144", "gpio145";
+					function = "gpio";
+					drive-strength = <2>;
+					bias-pull-down;
+				};
+
+				ctl-pins {
+					pins = "hsic_data", "hsic_strobe";
+					function = "gpio";
+				};
+			};
+
+			hsic_state: hsic-state {
+				data-strobe-pins {
+					pins = "gpio144", "gpio145";
+					function = "hsic";
+					drive-strength = <12>;
+					bias-disable;
+				};
+
+				ctl-pins {
+					pins = "hsic_data", "hsic_strobe";
+					function = "hsic_ctl";
+				};
+			};
+
 			sdc1_off: sdc1-off-state {
 				clk-pins {
 					pins = "sdc1_clk";

-- 
2.47.3