From: Sjoerd Simons <sjoerd@collabora.com>
Date: Sat, 1 Nov 2025 13:32:46 +0000 (+0100)
Subject: arm64: dts: mediatek: mt7981b: Configure UART0 pinmux
X-Git-Tag: v6.19-rc1~100^2~28^2~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8bc650405f4476667973b10ec58152d37cd41a99;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: mediatek: mt7981b: Configure UART0 pinmux

Add explicit pinctrl configuration for UART0

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---

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 @@
 			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 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			#interrupt-cells = <2>;
+
+			uart0_pins: uart0-pins {
+				mux {
+					function = "uart";
+					groups = "uart0";
+				};
+			};
 		};
 
 		efuse@11f20000 {