ARM: dts: sun8i: V3/V3s/S3/S3L: add pinctrl for UART2 RX/TX

The UART2 RX/TX pins on Allwinner V3 series is at PB0/1, which is used
as debugging UART on some boards.

Add pinctrl node for them.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200923005858.148261-1-icenowy@aosc.io

diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index 7d40897dab09330c6ff3f2798ab9113685ac6d17..4cfdf193cf88ec15d3fb02f9f221b8b19a794bf0 100644 (file)
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -322,6 +322,11 @@
                                function = "uart0";
                        };
 
+                       uart2_pins: uart2-pins {
+                               pins = "PB0", "PB1";
+                               function = "uart2";
+                       };
+
                        mmc0_pins: mmc0-pins {
                                pins = "PF0", "PF1", "PF2", "PF3",
                                       "PF4", "PF5";
@@ -397,6 +402,8 @@
                        reg-io-width = <4>;
                        clocks = <&ccu CLK_BUS_UART2>;
                        resets = <&ccu RST_BUS_UART2>;
+                       pinctrl-0 = <&uart2_pins>;
+                       pinctrl-names = "default";
                        status = "disabled";
                };