ARM: dts: stm32: Add alternate pinmux for UART3 pins

Add another mux option for UART3 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 f0d66d8..823ef2e 100644 (file)
--- a/arch/arm/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/dts/stm32mp15-pinctrl.dtsi
@@ -2134,6 +2134,47 @@
                };
        };
 
+       usart3_pins_e: usart3-4 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('B', 10, AF7)>, /* USART3_TX */
+                                <STM32_PINMUX('G', 8, AF8)>; /* USART3_RTS */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('B', 11, AF7)>, /* USART3_RX */
+                                <STM32_PINMUX('D', 11, AF7)>; /* USART3_CTS_NSS */
+                       bias-pull-up;
+               };
+       };
+
+       usart3_idle_pins_e: usart3-idle-4 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */
+                                <STM32_PINMUX('D', 11, ANALOG)>; /* USART3_CTS_NSS */
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('G', 8, AF8)>; /* USART3_RTS */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+               pins3 {
+                       pinmux = <STM32_PINMUX('B', 11, AF7)>; /* USART3_RX */
+                       bias-pull-up;
+               };
+       };
+
+       usart3_sleep_pins_e: usart3-sleep-4 {
+               pins {
+                       pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */
+                                <STM32_PINMUX('G', 8, ANALOG)>, /* USART3_RTS */
+                                <STM32_PINMUX('D', 11, ANALOG)>, /* USART3_CTS_NSS */
+                                <STM32_PINMUX('B', 11, ANALOG)>; /* USART3_RX */
+               };
+       };
+
        usbotg_hs_pins_a: usbotg-hs-0 {
                pins {
                        pinmux = <STM32_PINMUX('A', 10, ANALOG)>; /* OTG_ID */