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

Signed-off-by: Dario Binacchi <[email protected]>
Link: 
https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexandre Torgue <[email protected]>

[ upstream commit: 47d16ab94b8e5e85aedba3cd22cfdf3877bf1dfb ]

---

 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 ad00c1080a96..96022afd0168 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 */
-- 
2.43.0

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