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

[ Upstream commit 40a2226e8bfacb79dd154dea68febeead9d847e9 ]

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
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 ca03685f0f0867237d30d473d695ec46b6b687e7..4783e657b4cb64567b94416c8355fd14126ff27c 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";
                        };