[PATCH 7/7] imx: ventana: fix USB hub reset

Tim Harvey tharvey at gateworks.com
Thu Sep 30 00:04:22 CEST 2021 

Remove board_ehci_hcd_init function that is not used with DM_USB
and replace its functionality with device-tree configuraton that treats
USB HUB RST# as a gpio enable for the usbh1 vbus regulator.

Signed-off-by: Tim Harvey <tharvey at gateworks.com>
---
 arch/arm/dts/imx6qdl-gw53xx.dtsi        | 11 +++++++-
 arch/arm/dts/imx6qdl-gw54xx.dtsi        | 11 +++++++-
 arch/arm/dts/imx6qdl-gw552x.dtsi        | 21 ++++++++++++++-
 arch/arm/dts/imx6qdl-gw560x.dtsi        |  3 ++-
 arch/arm/dts/imx6qdl-gw5904.dtsi        | 11 +++++++-
 arch/arm/dts/imx6qdl-gw5912.dtsi        | 11 +++++++-
 board/gateworks/gw_ventana/gw_ventana.c | 35 -------------------------
 7 files changed, 62 insertions(+), 41 deletions(-)

diff --git a/arch/arm/dts/imx6qdl-gw53xx.dtsi b/arch/arm/dts/imx6qdl-gw53xx.dtsi
index 904b228306..77ac103c2d 100644
--- a/arch/arm/dts/imx6qdl-gw53xx.dtsi
+++ b/arch/arm/dts/imx6qdl-gw53xx.dtsi
@@ -137,7 +137,8 @@
 		regulator-name = "usb_h1_vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
-		regulator-always-on;
+		gpio = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
 	};
 
 	reg_usb_otg_vbus: regulator-usb-otg-vbus {
@@ -550,6 +551,8 @@
 
 &usbh1 {
 	vbus-supply = <&reg_usb_h1_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbh1>;
 	status = "okay";
 };
 
@@ -720,6 +723,12 @@
 		>;
 	};
 
+	pinctrl_usbh1: usbh1grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_9__GPIO1_IO09		0x1b0b0
+		>;
+	};
+
 	pinctrl_usbotg: usbotggrp {
 		fsl,pins = <
 			MX6QDL_PAD_GPIO_1__USB_OTG_ID		0x17059
diff --git a/arch/arm/dts/imx6qdl-gw54xx.dtsi b/arch/arm/dts/imx6qdl-gw54xx.dtsi
index ffed4fb550..98c81e9c9b 100644
--- a/arch/arm/dts/imx6qdl-gw54xx.dtsi
+++ b/arch/arm/dts/imx6qdl-gw54xx.dtsi
@@ -146,7 +146,8 @@
 			regulator-name = "usb_h1_vbus";
 			regulator-min-microvolt = <5000000>;
 			regulator-max-microvolt = <5000000>;
-			regulator-always-on;
+			gpio = <&gpio1 16 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
 		};
 
 		reg_usb_otg_vbus: regulator at 3 {
@@ -620,6 +621,8 @@
 
 &usbh1 {
 	vbus-supply = <&reg_usb_h1_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbh1>;
 	status = "okay";
 };
 
@@ -815,6 +818,12 @@
 		>;
 	};
 
+	pinctrl_usbh1: usbh1grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD1_DAT0__GPIO1_IO16		0x1b0b0
+		>;
+	};
+
 	pinctrl_usbotg: usbotggrp {
 		fsl,pins = <
 			MX6QDL_PAD_GPIO_1__USB_OTG_ID		0x17059
diff --git a/arch/arm/dts/imx6qdl-gw552x.dtsi b/arch/arm/dts/imx6qdl-gw552x.dtsi
index f6742e5131..b853399aec 100644
--- a/arch/arm/dts/imx6qdl-gw552x.dtsi
+++ b/arch/arm/dts/imx6qdl-gw552x.dtsi
@@ -121,6 +121,15 @@
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 	};
+
+	reg_usb_h1_vbus: regulator-usbh1-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_h1_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
 };
 
 &gpmi {
@@ -390,9 +399,13 @@
 &uart5 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart5>;
-	status = "okay"; };
+	status = "okay";
+};
 
 &usbh1 {
+	vbus-supply = <&reg_usb_h1_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbh1>;
 	status = "okay";
 };
 
@@ -507,6 +520,12 @@
 		>;
 	};
 
+	pinctrl_usbh1: usbh1grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_9__GPIO1_IO09		0x1b0b0
+		>;
+	};
+
 	pinctrl_usbotg: usbotggrp {
 		fsl,pins = <
 			MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID	0x13059
diff --git a/arch/arm/dts/imx6qdl-gw560x.dtsi b/arch/arm/dts/imx6qdl-gw560x.dtsi
index 5da19756e0..1e95267c97 100644
--- a/arch/arm/dts/imx6qdl-gw560x.dtsi
+++ b/arch/arm/dts/imx6qdl-gw560x.dtsi
@@ -221,7 +221,8 @@
 		regulator-name = "usb_h1_vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
-		regulator-always-on;
+		gpio = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
 	};
 
 	reg_usb_otg_vbus: regulator-usb-otg-vbus {
diff --git a/arch/arm/dts/imx6qdl-gw5904.dtsi b/arch/arm/dts/imx6qdl-gw5904.dtsi
index b5ed2d83c1..286c7a9924 100644
--- a/arch/arm/dts/imx6qdl-gw5904.dtsi
+++ b/arch/arm/dts/imx6qdl-gw5904.dtsi
@@ -176,7 +176,8 @@
 		regulator-name = "usb_h1_vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
-		regulator-always-on;
+		gpio = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
 	};
 
 	reg_usb_otg_vbus: regulator-usb-otg-vbus {
@@ -593,6 +594,8 @@
 
 &usbh1 {
 	vbus-supply = <&reg_usb_h1_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg>;
 	status = "okay";
 };
 
@@ -753,6 +756,12 @@
 		>;
 	};
 
+	pinctrl_usbh1: usbh1grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_9__GPIO1_IO09		0x1b0b0
+		>;
+	};
+
 	pinctrl_usbotg: usbotggrp {
 		fsl,pins = <
 			MX6QDL_PAD_GPIO_1__USB_OTG_ID		0x17059
diff --git a/arch/arm/dts/imx6qdl-gw5912.dtsi b/arch/arm/dts/imx6qdl-gw5912.dtsi
index 2537288627..8fd8fdb514 100644
--- a/arch/arm/dts/imx6qdl-gw5912.dtsi
+++ b/arch/arm/dts/imx6qdl-gw5912.dtsi
@@ -120,7 +120,8 @@
 		regulator-name = "usb_vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
-		regulator-always-on;
+		gpio = <&gpio4 5 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
 	};
 };
 
@@ -380,6 +381,8 @@
 
 &usbh1 {
 	vbus-supply = <&reg_usb_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbh1>;
 	status = "okay";
 };
 
@@ -560,6 +563,12 @@
 		>;
 	};
 
+	pinctrl_usbh1: usbh1grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_19__GPIO4_IO05		0x1b0b0
+		>;
+	};
+
 	pinctrl_usbotg: usbotggrp {
 		fsl,pins = <
 			MX6QDL_PAD_GPIO_1__USB_OTG_ID		0x13059
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 1c82bd5067..8cf7914670 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -39,41 +39,6 @@ DECLARE_GLOBAL_DATA_PTR;
 struct ventana_board_info ventana_info;
 static int board_type;
 
-#ifdef CONFIG_USB_EHCI_MX6
-/* toggle USB_HUB_RST# for boards that have it; it is not defined in dt */
-int board_ehci_hcd_init(int port)
-{
-	int gpio;
-
-	/* USB HUB is always on P1 */
-	if (port == 0)
-		return 0;
-
-	/* Reset USB HUB */
-	switch (board_type) {
-	case GW53xx:
-	case GW552x:
-	case GW5906:
-		gpio = (IMX_GPIO_NR(1, 9));
-		break;
-	case GW54proto:
-	case GW54xx:
-		gpio = (IMX_GPIO_NR(1, 16));
-		break;
-	default:
-		return 0;
-	}
-
-	/* request and toggle hub rst */
-	gpio_request(gpio, "usb_hub_rst#");
-	gpio_direction_output(gpio, 0);
-	mdelay(2);
-	gpio_set_value(gpio, 1);
-
-	return 0;
-}
-#endif /* CONFIG_USB_EHCI_MX6 */
-
 /* configure eth0 PHY board-specific LED behavior */
 int board_phy_config(struct phy_device *phydev)
 {
-- 
2.17.1

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