ARM: dts: stm32: Add alternate pinmux for USART2 pins on stm32mp15

Add mux option for USART2 pins, this is used on AV96 board.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index 0f9a6b1..f4bf87b 100644 (file)
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -1389,6 +1389,30 @@
                };
        };
 
+       usart2_pins_a: usart2-0 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('F', 5, AF7)>, /* USART2_TX */
+                                <STM32_PINMUX('D', 4, AF7)>; /* USART2_RTS */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('D', 6, AF7)>, /* USART2_RX */
+                                <STM32_PINMUX('D', 3, AF7)>; /* USART2_CTS_NSS */
+                       bias-disable;
+               };
+       };
+
+       usart2_sleep_pins_a: usart2-sleep-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('F', 5, ANALOG)>, /* USART2_TX */
+                                <STM32_PINMUX('D', 4, ANALOG)>, /* USART2_RTS */
+                                <STM32_PINMUX('D', 6, ANALOG)>, /* USART2_RX */
+                                <STM32_PINMUX('D', 3, ANALOG)>; /* USART2_CTS_NSS */
+               };
+       };
+
        usart3_pins_a: usart3-0 {
                pins1 {
                        pinmux = <STM32_PINMUX('B', 10, AF7)>; /* USART3_TX */