linux-kernel - [PATCH 2/7] ARM: dts: sun8i: V3/V3s/S3/S3L: add pinctrl for UART2 RX/TX

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Date:   Wed, 23 Sep 2020 08:58:53 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Icenowy Zheng <icenowy@...c.io>
Subject: [PATCH 2/7] 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@...c.io>
---
 arch/arm/boot/dts/sun8i-v3s.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index 7d40897dab09..4cfdf193cf88 100644
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -322,6 +322,11 @@ uart0_pb_pins: uart0-pb-pins {
 				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 @@ uart2: serial@...8800 {
 			reg-io-width = <4>;
 			clocks = <&ccu CLK_BUS_UART2>;
 			resets = <&ccu RST_BUS_UART2>;
+			pinctrl-0 = <&uart2_pins>;
+			pinctrl-names = "default";
 			status = "disabled";
 		};
 
-- 
2.27.0