linux-kernel - [PATCH 4/4] arm64: dts: tqma8mpql: add support for 2nd USB (host) interface

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Date:   Wed,  7 Sep 2022 16:46:24 +0200
From:   Alexander Stein <alexander.stein@...tq-group.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>, Li Jun <jun.li@....com>
Cc:     Alexander Stein <alexander.stein@...tq-group.com>,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] arm64: dts: tqma8mpql: add support for 2nd USB (host) interface

The on-board USB hub has a single reset line which needs to be enabled.

Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
---
 .../freescale/imx8mp-tqma8mpql-mba8mpxl.dts   | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts
index 0091430f6154..09c80ffae4b6 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts
@@ -459,11 +459,23 @@ &usb3_0 {
 	status = "okay";
 };
 
+&usb3_1 {
+	fsl,disable-port-power-control;
+	fsl,permanently-attached;
+	dr_mode = "host";
+	status = "okay";
+};
+
 &usb3_phy0 {
 	vbus-supply = <&reg_vcc_5v0>;
 	status = "okay";
 };
 
+&usb3_phy1 {
+	vbus-supply = <&reg_vcc_5v0>;
+	status = "okay";
+};
+
 &usb_dwc3_0 {
 	/* dual role is implemented, but not a full featured OTG */
 	hnp-disable;
@@ -484,6 +496,32 @@ connector {
 	};
 };
 
+&usb_dwc3_1 {
+	dr_mode = "host";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbhub>;
+	snps,dis_u3_susphy_quirk;
+	status = "okay";
+
+	hub_2_0: hub@1 {
+		compatible = "usb451,8142";
+		reg = <1>;
+		peer-hub = <&hub_3_0>;
+		reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+		vdd-supply = <&reg_vcc_3v3>;
+	};
+
+	hub_3_0: hub@2 {
+		compatible = "usb451,8140";
+		reg = <2>;
+		peer-hub = <&hub_2_0>;
+		reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+		vdd-supply = <&reg_vcc_3v3>;
+	};
+};
+
 &usdhc2 {
 	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
@@ -714,6 +752,10 @@ pinctrl_usbcon0: usb0congrp {
 		fsl,pins = <MX8MP_IOMUXC_GPIO1_IO10__GPIO1_IO10		0x1c0>;
 	};
 
+	pinctrl_usbhub: usbhubgrp {
+		fsl,pins = <MX8MP_IOMUXC_GPIO1_IO11__GPIO1_IO11		0x10>;
+	};
+
 	pinctrl_usdhc2: usdhc2grp {
 		fsl,pins = <MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK		0x192>,
 			   <MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD		0x1d2>,
-- 
2.25.1