ARM: dts: sun5i: hsg-h702: Enable USB OTG controller

This tablet has proper USB OTG support, using 3 GPIO pins for
ID and VBUS detection, and also VBUS control.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
index 4b8808ab9711..3724b988064e 100644
--- a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
+++ b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
@@ -130,6 +130,10 @@
         status = "okay";
 };
 
+&otg_sram {
+        status = "okay";
+};
+
 &pio {
         mmc0_cd_pin_h702: mmc0_cd_pin@0 {
                 allwinner,pins = "PG0";
@@ -137,6 +141,20 @@
                 allwinner,drive = <SUN4I_PINCTRL_10_MA>;
                 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
         };
+
+        usb0_id_detect_pin: usb0_id_detect_pin@0 {
+                allwinner,pins = "PG2";
+                allwinner,function = "gpio_in";
+                allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+                allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+        };
+
+        usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 {
+                allwinner,pins = "PG1";
+                allwinner,function = "gpio_in";
+                allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+                allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+        };
 };
 
 #include "axp209.dtsi"
@@ -172,13 +190,33 @@
         regulator-name = "vcc-wifi";
 };
 
+&reg_usb0_vbus {
+        pinctrl-0 = <&usb0_vbus_pin_a>;
+        gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+        status = "okay";
+};
+
 &uart1 {
         pinctrl-names = "default";
         pinctrl-0 = <&uart1_pins_b>;
         status = "okay";
 };
 
+&usb_otg {
+        dr_mode = "otg";
+        status = "okay";
+};
+
+&usb0_vbus_pin_a {
+        allwinner,pins = "PG12";
+};
+
 &usbphy {
+        pinctrl-names = "default";
+        pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
+        usb0_id_det-gpios = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
+        usb0_vbus_det-gpios = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */
+        usb0_vbus-supply = <&reg_usb0_vbus>;
         usb1_vbus-supply = <&reg_ldo3>;
         status = "okay";
 };