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>

diff --git a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
index 4b8808a..3724b98 100644 (file)
--- 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";
 };