ARM: dts: stm32: Add alternate pinmux for UART4 pins

Add another mux option for UART4 pins, this is used on DRC Compact board.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>

diff --git a/arch/arm/dts/stm32mp15-pinctrl.dtsi b/arch/arm/dts/stm32mp15-pinctrl.dtsi
index 823ef2e..dc329bf 100644 (file)
--- a/arch/arm/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/dts/stm32mp15-pinctrl.dtsi
@@ -1835,6 +1835,36 @@
                };
        };
 
+       uart4_pins_d: uart4-3 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('A', 13, AF8)>; /* UART4_TX */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('B', 2, AF8)>; /* UART4_RX */
+                       bias-disable;
+               };
+       };
+
+       uart4_idle_pins_d: uart4-idle-3 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('A', 13, ANALOG)>; /* UART4_TX */
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('B', 2, AF8)>; /* UART4_RX */
+                       bias-disable;
+               };
+       };
+
+       uart4_sleep_pins_d: uart4-sleep-3 {
+               pins {
+                       pinmux = <STM32_PINMUX('A', 13, ANALOG)>, /* UART4_TX */
+                                <STM32_PINMUX('B', 2, ANALOG)>; /* UART4_RX */
+               };
+       };
+
        uart7_pins_a: uart7-0 {
                pins1 {
                        pinmux = <STM32_PINMUX('E', 8, AF7)>; /* UART7_TX */