[PATCH 17/19] ARM: dts: stm32: Add alternate pinmux for MP13 UART4 pins

[Marek Vasut]

Add another mux option for UART4 pins, this is used on
DH electronics STM32MP13xx DHCOR DHSBC board.

Signed-off-by: Marek Vasut <marex at denx.de>
---
Cc: Patrice Chotard <patrice.chotard at foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
Cc: u-boot at dh-electronics.com
Cc: uboot-stm32 at st-md-mailman.stormreply.com
---
 arch/arm/dts/stm32mp13-pinctrl.dtsi | 30 +++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/dts/stm32mp13-pinctrl.dtsi b/arch/arm/dts/stm32mp13-pinctrl.dtsi
index 65f91265a4d..7014c7a6d23 100644
--- a/arch/arm/dts/stm32mp13-pinctrl.dtsi
+++ b/arch/arm/dts/stm32mp13-pinctrl.dtsi
@@ -617,6 +617,36 @@
 		};
 	};
 
+	uart4_pins_b: uart4-1 {
+		pins1 {
+			pinmux = <STM32_PINMUX('A', 9, AF8)>; /* UART4_TX */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('D', 8, AF8)>; /* UART4_RX */
+			bias-pull-up;
+		};
+	};
+
+	uart4_idle_pins_b: uart4-idle-1 {
+		pins1 {
+			pinmux = <STM32_PINMUX('A', 9, ANALOG)>; /* UART4_TX */
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('D', 8, AF8)>; /* UART4_RX */
+			bias-pull-up;
+		};
+	};
+
+	uart4_sleep_pins_b: uart4-sleep-1 {
+		pins {
+			pinmux = <STM32_PINMUX('A', 9, ANALOG)>, /* UART4_TX */
+				 <STM32_PINMUX('D', 8, ANALOG)>; /* UART4_RX */
+		};
+	};
+
 	uart8_pins_a: uart8-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('E', 1, AF8)>; /* UART8_TX */
-- 
2.43.0