How to add UART support for DTS and compile it for STM32MP157F-DK2 I created a custom linux image for this target using the distribution package + x-linux-qt and the image "st-image-qt". This image is working correctly on my target. Now, I want to add UART5 and UART4 to receive data over those 2 serial ports. As far as I understand, I need to add something like this in the DTS &usart4 {
pinctrl-names = "default", "sleep", "idle";/* pin configurations definition */
pinctrl-0 = <&usart4_pins_a>; /* default pin configuration selection */
pinctrl-1 = <&usart4_sleep_pins_a>; /* sleep pin configuration selection */
pinctrl-2 = <&usart4_idle_pins_a>; /* idle pin configuration selection */
status = "okay";
}; and something like this in the DTSI usart3_pins_a: usart3-0 {
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', 1
