arm64: dts: rockchip: Add pinctrl for UART0 to rk3308-rock-pi-s

[ Upstream commit 7affb86ef62581e3475ce3e0a7640da1f2ee29f8 ]

UAR0 CTS/RTS is not wired to any pin and is not used for the default
serial console use of UART0 on ROCK Pi S.

Override the SoC defined pinctrl props to limit configuration of the
two xfer pins wired to one of the GPIO pin headers.

Fixes: 2e04c25b1320 ("arm64: dts: rockchip: add ROCK Pi S DTS support")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20240521211029.1236094-6-jonas@kwiboo.se
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts b/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts
index 8ea984906403288eb679be3e8370f3b46b27468d..d4cf6026241c44fb5a6f76f09a12ac1aa6b44c69 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts
@@ -294,6 +294,8 @@
 };
 
 &uart0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart0_xfer>;
        status = "okay";
 };