[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 <ma...@denx.de>
---
Cc: Patrice Chotard <patrice.chot...@foss.st.com>
Cc: Patrick Delaunay <patrick.delau...@foss.st.com>
Cc: u-b...@dh-electronics.com
Cc: uboot-st...@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