ARM: dts: stm32: Add missing USART3 pin config to stm32f469-disco board

This patch adds USART3 pin configuration on PB10/PA11 pins
for STM32F469I-DISCO board.

Signed-off-by: Bruno Herrera <bruherrera@gmail.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>

2 files changed, 15 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index e4dae0eda3cd..1b8b1057d4cb 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -316,6 +316,19 @@
                                 };
                         };
 
+                        usart3_pins_a: usart3@0 {
+                                pins1 {
+                                        pinmux = <STM32F429_PB10_FUNC_USART3_TX>;
+                                        bias-disable;
+                                        drive-push-pull;
+                                        slew-rate = <0>;
+                                };
+                                pins2 {
+                                        pinmux = <STM32F429_PB11_FUNC_USART3_RX>;
+                                        bias-disable;
+                                };
+                        };
+
                         usbotg_hs_pins_a: usbotg_hs@0 {
                                 pins {
                                         pinmux = <STM32F429_PH4_FUNC_OTG_HS_ULPI_NXT>,
diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts
index 5030decd5dac..fda12a466320 100644
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -79,5 +79,7 @@
 };
 
 &usart3 {
+        pinctrl-0 = <&usart3_pins_a>;
+        pinctrl-names = "default";
         status = "okay";
 };