[PATCH v2 01/15] arm64: dts: mediatek: mt7981b: Configure UART0 pinmux

[Sjoerd Simons]

Add explicit pinctrl configuration for UART0

Signed-off-by: Sjoerd Simons <sjoerd at collabora.com>
---
V1 -> V2: Move pinctrl to the soc dtsi as it's the only available
          pinmux for the uart. And very rare for the pins to be used for
          anything else.
---
 arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
index 58c99f2a25218..4fa35bbf0a9cd 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -102,6 +102,8 @@ uart0: serial at 11002000 {
 			clocks = <&infracfg CLK_INFRA_UART0_SEL>,
 				 <&infracfg CLK_INFRA_UART0_CK>;
 			clock-names = "baud", "bus";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart0_pins>;
 			status = "disabled";
 		};
 
@@ -229,6 +231,13 @@ pio: pinctrl at 11d00000 {
 			gpio-controller;
 			#gpio-cells = <2>;
 			#interrupt-cells = <2>;
+
+			uart0_pins: uart0-pins {
+				mux {
+					function = "uart";
+					groups = "uart0";
+				};
+			};
 		};
 
 		efuse at 11f20000 {

-- 
2.51.0