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

[ Upstream commit ffa1151b43565b6e988d678ca87225d2a1f8f5c1 ]

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: 9d6b345ecfbc ("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
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
index 287566e09a673fcae5098cc7d24d5d593ed01ac8..3d694b60d4525fce9bddbfaffa8c8281b7493a33 100644 (file)
--- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
@@ -38,6 +38,13 @@
 
                                };
 
+                               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 =
@@ -83,6 +90,8 @@
                        };
 
                        usb1: gadget@fffa4000 {
+                               pinctrl-0 = <&pinctrl_usb1_vbus_gpio>;
+                               pinctrl-names = "default";
                                atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
                                status = "okay";
                        };