linux-kernel - [PATCH v2 4/9] arm64: dts: renesas: rzt2h-evk-common: Add pinctrl for SCI0 node

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Message-ID: <20250820200659.2048755-5-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Wed, 20 Aug 2025 21:06:54 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v2 4/9] arm64: dts: renesas: rzt2h-evk-common: Add pinctrl for SCI0 node

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Add pinctrl for SCI0 node.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
v1->v2:
- Dropped including <dt-bindings/pinctrl/renesas,r9a09g077-pinctrl.h>
- Added Reviewed-by tag from Geert
---
 .../boot/dts/renesas/rzt2h-n2h-evk-common.dtsi  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
index 28330ff63b2b..06300f806685 100644
--- a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
@@ -25,6 +25,23 @@ &extal_clk {
 	clock-frequency = <25000000>;
 };
 
+&pinctrl {
+	/*
+	 * SCI0 Pin Configuration:
+	 * ------------------------
+	 * Signal     | Pin     | RZ/T2H (SW4) | RZ/N2H (DSW9)
+	 * -----------|---------|--------------|---------------
+	 * SCI0_RXD   | P27_4   | 5: ON, 6: OFF| 1: ON, 2: OFF
+	 * SCI0_TXD   | P27_5   | 7: ON, 8: OFF| 3: ON, 4: OFF
+	 */
+	sci0_pins: sci0-pins {
+		pinmux = <RZT2H_PORT_PINMUX(27, 4, 0x14)>,
+			 <RZT2H_PORT_PINMUX(27, 5, 0x14)>;
+	};
+};
+
 &sci0 {
+	pinctrl-0 = <&sci0_pins>;
+	pinctrl-names = "default";
 	status = "okay";
 };
-- 
2.51.0