From: Piyush Mehta <piyush.mehta@xilinx.com>
Date: Fri, 8 Oct 2021 07:58:48 +0000 (+0530)
Subject: arm64: zynqmp: Add i2c-bus property for usb5744
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b9cf8faa21a7c33828599fc34a8b9feeba644561;p=thirdparty%2Fu-boot.git

arm64: zynqmp: Add i2c-bus property for usb5744

Added "i2c-bus" property feature in usb5744 driver for I2C slaves
devices. Based on the I2C handler driver is initialize the I2C device
and trigger GPIO reset. If the property does not present then the
usb5744 driver acts as a non-I2C platform device.

Signed-off-by: Piyush Mehta <piyush.mehta@xilinx.com>
---

diff --git a/arch/arm/dts/zynqmp-sck-kr-g-revA.dts b/arch/arm/dts/zynqmp-sck-kr-g-revA.dts
index 998aaeef489..7b8b8f195a6 100644
--- a/arch/arm/dts/zynqmp-sck-kr-g-revA.dts
+++ b/arch/arm/dts/zynqmp-sck-kr-g-revA.dts
@@ -94,25 +94,15 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 		reg = <0x74>;
-		i2c@0 {
+		usbhub_i2c0: i2c@0 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0>;
-			usbhub0: usb5744@2d { /* u43 */
-				compatible = "microchip,usb5744";
-				reg = <0x2d>;
-				reset-gpios = <&slg7xl45106 3 GPIO_ACTIVE_HIGH>;
-			};
 		};
-		i2c@1 {
+		usbhub_i2c1: i2c@1 {
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <1>;
-			usbhub1: usb5744@2d { /* u84 */
-				compatible = "microchip,usb5744";
-				reg = <0x2d>;
-				reset-gpios = <&slg7xl45106 4 GPIO_ACTIVE_HIGH>;
-			};
 		};
 		/* Bus 2/3 are not connected */
 	};
@@ -145,6 +135,13 @@
 	phy-names = "usb3-phy";
 	phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
 	reset-gpio = <&gpio 76 0>;
+
+	usbhub0: usb5744@2d { /* u43 */
+		i2c-bus = <&usbhub_i2c0>;
+		compatible = "microchip,usb5744";
+		reset-gpios = <&slg7xl45106 3 GPIO_ACTIVE_HIGH>;
+	};
+
 	/* usb2244 - u38 - SD_RESET_B via u19 */
 	usbsd: usb2244 {
 		compatible = "microchip,usb2244";
@@ -166,6 +163,12 @@
 	phy-names = "usb3-phy";
 	phys = <&psgtr 3 PHY_TYPE_USB3 1 1>;
 	reset-gpio = <&gpio 77 0>;
+
+	usbhub1: usb5744@2d { /* u84 */
+		i2c-bus = <&usbhub_i2c1>;
+		compatible = "microchip,usb5744";
+		reset-gpios = <&slg7xl45106 4 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &dwc3_1 {