ARM: dts: stm32: Add pin map for I2C3 controller on stm32f4

This patch adds the pin configuration for I2C3 controller on
stm32f4.

Signed-off-by: dillon min <dillon.minfei@gmail.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
index 373ec8ddc280593a10c2c171e751da0c2ebc2fbd..35249a22e5132b2028e9b0c10d1a4f3587462e6a 100644 (file)
--- a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
@@ -383,6 +383,18 @@
                                };
                        };
 
+                       i2c3_pins: i2c3-0 {
+                               pins {
+                                       pinmux = <STM32_PINMUX('C', 9, AF4)>,
+                                               /* I2C3_SDA */
+                                                <STM32_PINMUX('A', 8, AF4)>;
+                                               /* I2C3_SCL */
+                                       bias-disable;
+                                       drive-open-drain;
+                                       slew-rate = <3>;
+                               };
+                       };
+
                        dcmi_pins: dcmi-0 {
                                pins {
                                        pinmux = <STM32_PINMUX('A', 4, AF13)>, /* DCMI_HSYNC */