linux-kernel - [PATCH 2/4] ARM: dts: stm32: Add pin map for I2C3 controller on stm32f4

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Date:   Thu,  7 May 2020 15:47:15 +0800
From:   dillon.minfei@...il.com
To:     mcoquelin.stm32@...il.com, alexandre.torgue@...com,
        philippe.schenker@...adex.com
Cc:     linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        dillon min <dillon.minfei@...il.com>
Subject: [PATCH 2/4] ARM: dts: stm32: Add pin map for I2C3 controller on stm32f4

From: dillon min <dillon.minfei@...il.com>

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

Signed-off-by: dillon min <dillon.minfei@...il.com>
---
 arch/arm/boot/dts/stm32f4-pinctrl.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
index 392fa14..051f336 100644
--- a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
@@ -316,6 +316,18 @@
 				};
 			};
 
+			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 */
-- 
2.7.4