linux-kernel - [PATCH 1/3] arm64: dts: st: add i2c2 pins for stm32mp25

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Message-ID: <20260205-master-v1-1-fe6399aa3aab@foss.st.com>
Date: Thu, 5 Feb 2026 14:39:40 +0100
From: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Maxime Coquelin
	<mcoquelin.stm32@...il.com>, Alexandre Torgue <alexandre.torgue@...s.st.com>
CC: Philippe Cornu <philippe.cornu@...s.st.com>, Yannick Fertre
	<yannick.fertre@...s.st.com>, Raphaël Gallais-Pou
	<rgallaispou@...il.com>, <devicetree@...r.kernel.org>,
	<linux-stm32@...md-mailman.stormreply.com>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/3] arm64: dts: st: add i2c2 pins for stm32mp25

Add the i2c2 pins used on STM32MP257F-DK board.

Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi b/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi
index c34cd33cd855fb28b65a39b59b49e089345ce9a6..2f853f3fae6d84756300f19da32d6cb0297d9e20 100644
--- a/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi
@@ -212,6 +212,23 @@ pins {
 		};
 	};
 
+	i2c2_pins_b: i2c2-1 {
+		pins {
+			pinmux = <STM32_PINMUX('F', 2, AF9)>, /* I2C2_SCL */
+				 <STM32_PINMUX('F', 0, AF9)>; /* I2C2_SDA */
+			bias-disable;
+			drive-open-drain;
+			slew-rate = <0>;
+		};
+	};
+
+	i2c2_sleep_pins_b: i2c2-sleep-1 {
+		pins {
+			pinmux = <STM32_PINMUX('F', 2, ANALOG)>, /* I2C2_SCL */
+				 <STM32_PINMUX('F', 0, ANALOG)>; /* I2C2_SDA */
+		};
+	};
+
 	ospi_port1_clk_pins_a: ospi-port1-clk-0 {
 		pins {
 			pinmux = <STM32_PINMUX('D', 0, AF10)>; /* OSPI1_CLK */

-- 
2.43.0