From: Michael Grzeschik m.grzeschik@pengutronix.de
[ 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.d... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/at91sam9g20ek_common.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi index ca03685f0f08..4783e657b4cb 100644 --- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi +++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi @@ -39,6 +39,13 @@ pinctrl_pck0_as_mck: pck0_as_mck {
};
+ 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 @@ macb0: ethernet@fffc4000 { };
usb1: gadget@fffa4000 { + pinctrl-0 = <&pinctrl_usb1_vbus_gpio>; + pinctrl-names = "default"; atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>; status = "okay"; };