linux-kernel - [PATCH v2 4/5] ARM: dts: stm32: Add I2C1 support for STM32F746 SoC

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Message-ID: <1497958890-5530-5-git-send-email-pierre-yves.mordret@st.com>
Date:   Tue, 20 Jun 2017 13:41:29 +0200
From:   Pierre-Yves MORDRET <pierre-yves.mordret@...com>
To:     Wolfram Sang <wsa@...-dreams.de>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Russell King <linux@...linux.org.uk>,
        <linux-i2c@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <pierre-yves.mordret@...com>
Subject: [PATCH v2 4/5] ARM: dts: stm32: Add I2C1 support for STM32F746 SoC

This patch adds I2C1 support for STM32F746 SoC.

Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@...il.com>
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@...com>
---
Changes in V2:
  * Update I2C SoC device tree with latest Linux version
---
 arch/arm/boot/dts/stm32f746.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi
index c2765ce..b00b96b 100644
--- a/arch/arm/boot/dts/stm32f746.dtsi
+++ b/arch/arm/boot/dts/stm32f746.dtsi
@@ -326,6 +326,16 @@
 					bias-disable;
 				};
 			};
+
+			i2c1_pins_b: i2c1@0 {
+				pins {
+					pinmux = <STM32F746_PB9_FUNC_I2C1_SDA>,
+						 <STM32F746_PB8_FUNC_I2C1_SCL>;
+					bias-disable;
+					drive-open-drain;
+					slew-rate = <0>;
+				};
+			};
 		};
 
 		crc: crc@...23000 {
@@ -344,6 +354,18 @@
 			assigned-clocks = <&rcc 1 CLK_HSE_RTC>;
 			assigned-clock-rates = <1000000>;
 		};
+
+		i2c1: i2c@...05400 {
+			compatible = "st,stm32f7-i2c";
+			reg = <0x40005400 0x400>;
+			interrupts = <31>,
+				     <32>;
+			resets = <&rcc STM32F7_APB1_RESET(I2C1)>;
+			clocks = <&rcc 1 CLK_I2C1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
 	};
 };
 
-- 
1.9.1