ARM: dts: at91: sam9g20ek: enable udc vbus gpio pinctrl

We set the PIOC to GPIO mode. This way the pin becomes an
input signal will be usable by the controller. Without
this change the udc on the 9g20ek does not work.

Cc: nicolas.ferre@microchip.com
Cc: ludovic.desroches@microchip.com
Cc: alexandre.belloni@bootlin.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: kernel@pengutronix.de
Fixes: 5cb4e73575e3 ("ARM: at91: add at91sam9g20ek boards dt support")
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221114185923.1023249-3-m.grzeschik@pengutronix.de

diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
index 60d61291f34445142c31b511ad349948c517407b..024af2db638ebe10537ee358463ae60ed4ae3faf 100644 (file)
--- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
@@ -39,6 +39,13 @@
 
                                };
 
+                               usb1 {
+                                       pinctrl_usb1_vbus_gpio: usb1_vbus_gpio {
+                                               atmel,pins =
+                                                       <AT91_PIOC 5 AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>;   /* PC5 GPIO */
+                                       };
+                               };
+
                                mmc0_slot1 {
                                        pinctrl_board_mmc0_slot1: mmc0_slot1-board {
                                                atmel,pins =
@@ -84,6 +91,8 @@
                        };
 
                        usb1: gadget@fffa4000 {
+                               pinctrl-0 = <&pinctrl_usb1_vbus_gpio>;
+                               pinctrl-names = "default";
                                atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
                                status = "okay";
                        };