linux-kernel - [PATCH v8 3/5] ARM: dts: stm32: Add I2C1 support for STM32F429 SoC

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Message-Id: <1483607246-14771-4-git-send-email-cedric.madianga@gmail.com>
Date:   Thu,  5 Jan 2017 10:07:24 +0100
From:   M'boumba Cedric Madianga <cedric.madianga@...il.com>
To:     wsa@...-dreams.de, robh+dt@...nel.org, mcoquelin.stm32@...il.com,
        alexandre.torgue@...com, linus.walleij@...aro.org,
        patrice.chotard@...com, linux@...linux.org.uk,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        u.kleine-koenig@...gutronix.de
Cc:     M'boumba Cedric Madianga <cedric.madianga@...il.com>
Subject: [PATCH v8 3/5] ARM: dts: stm32: Add I2C1 support for STM32F429 SoC

This patch adds I2C1 support for STM32F429 SoC

Signed-off-by: Patrice Chotard <patrice.chotard@...com>
Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@...il.com>
---
 arch/arm/boot/dts/stm32f429.dtsi | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index e4dae0e..5b063e9 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -48,6 +48,7 @@
 #include "skeleton.dtsi"
 #include "armv7-m.dtsi"
 #include <dt-bindings/pinctrl/stm32f429-pinfunc.h>
+#include <dt-bindings/mfd/stm32f4-rcc.h>
 
 / {
 	clocks {
@@ -153,6 +154,18 @@
 			status = "disabled";
 		};
 
+		i2c1: i2c@...05400 {
+			compatible = "st,stm32f4-i2c";
+			reg = <0x40005400 0x400>;
+			interrupts = <31>,
+				     <32>;
+			resets = <&rcc STM32F4_APB1_RESET(I2C1)>;
+			clocks = <&rcc 0 STM32F4_APB1_CLOCK(I2C1)>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		usart7: serial@...07800 {
 			compatible = "st,stm32-usart", "st,stm32-uart";
 			reg = <0x40007800 0x400>;
@@ -355,6 +368,16 @@
 					slew-rate = <2>;
 				};
 			};
+
+			i2c1_pins_b: i2c1@0 {
+				pins {
+					pinmux = <STM32F429_PB9_FUNC_I2C1_SDA>,
+						 <STM32F429_PB6_FUNC_I2C1_SCL>;
+					bias-disable;
+					drive-open-drain;
+					slew-rate = <3>;
+				};
+			};
 		};
 
 		rcc: rcc@...23810 {
-- 
1.9.1