linux-kernel - [RESEND PATCH v1] ARM: dts: stm32f429: Add missing USART3 pin config to STM32F469I-DISCO board

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Date:   Fri, 18 Nov 2016 13:10:33 -0200
From:   Bruno Meirelles Herrera <bruherrera@...il.com>
To:     robh+dt@...nel.org, mark.rutland@....com, linux@...linux.org.uk,
        mcoquelin.stm32@...il.com, alexandre.torgue@...com
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Bruno Herrera <bruherrera@...il.com>
Subject: [RESEND PATCH v1] ARM: dts: stm32f429: Add missing USART3 pin config to STM32F469I-DISCO board

Including new STM32 maintainer. Rebased at stm32-dt-for-v4.10-1 and
stm32-dt-for-v4.10-2 branches. It fix the port/pin initialization in
case boot-loader does not configure/initialize the pins. 
Fixing line wrapping from last patch

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

Signed-off-by: Bruno Herrera <bruherrera@...il.com>
---
 arch/arm/boot/dts/stm32f429.dtsi      | 13 +++++++++++++
 arch/arm/boot/dts/stm32f469-disco.dts |  2 ++
 2 files changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index e4dae0e..1b8b105 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 8877c00..75f4303 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";
 };
-- 
2.9.3 (Apple Git-75)