From 1addd0e42962941a811e2d307376c865f65c1c8e Mon Sep 17 00:00:00 2001
From: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Date: Sun, 27 Apr 2025 09:43:25 +0200
Subject: [PATCH] ARM: dts: stm32: add pin map for UART8 controller on
 stm32h743

Add a pin map configuration for using the UART8 controller on the
stm32h743 MCU.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/r/20250427074404.3278732-7-dario.binacchi@amarulasolutions.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

[ upstream commit: 47d16ab94b8e5e85aedba3cd22cfdf3877bf1dfb ]

(cherry picked from commit 59621a6472cd6eeb748ed6d6202a21d0f3cc5a83)
---
 dts/upstream/src/arm/st/stm32h7-pinctrl.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/dts/upstream/src/arm/st/stm32h7-pinctrl.dtsi b/dts/upstream/src/arm/st/stm32h7-pinctrl.dtsi
index ad00c1080a9..96022afd016 100644
--- a/dts/upstream/src/arm/st/stm32h7-pinctrl.dtsi
+++ b/dts/upstream/src/arm/st/stm32h7-pinctrl.dtsi
@@ -211,6 +211,19 @@
 		};
 	};
 
+	uart8_pins_a: uart8-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('J', 8, AF8)>; /* UART8_TX */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('J', 9, AF8)>; /* UART8_RX */
+			bias-disable;
+		};
+	};
+
 	usart1_pins_a: usart1-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('B', 14, AF4)>; /* USART1_TX */
-- 
2.47.3