Espressif ESP32S2 pin control helpers

Macros for pin control configuration of Espressif ESP32S2. More...

Files
file	esp32s2-pinctrl.h
	Devicetree pin control helpers for Espressif ESP32S2.

Detailed Description

Macros for pin control configuration of Espressif ESP32S2.

The macros follow a naming convention: <PERIPHERAL>_<SIGNAL>_GPIO<PIN>. For example, I2C0_SCL_GPIO1 corresponds to the SCL signal of I2C0 mapped to GPIO1.

#include <zephyr/dt-bindings/pinctrl/esp-pinctrl-common.h>
#include <zephyr/dt-bindings/pinctrl/esp32s2-pinctrl.h>
#include <zephyr/dt-bindings/pinctrl/esp32s2-gpio-sigmap.h>
 
&pinctrl {
    uart0_default: uart0_default {
        group1 {
            pinmux = <UART0_TX_GPIO21>;
        };
        group2 {
            pinmux = <UART0_RX_GPIO20>;
            bias-pull-up;
        };
    };
};