| /* |
| * Copyright (c) 2020 InnBlue |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/init.h> |
| #include <zephyr/drivers/gpio.h> |
| |
| #define VDD_3V3_PWR_CTRL_GPIO_PIN 12 /* ENABLE_3V3_SENSOR --> i2c sensors */ |
| #define VDD_5V0_PWR_CTRL_GPIO_PIN 21 /* ENABLE_5V0_BOOST --> speed sensor */ |
| |
| /* Configures the pin as output and sets them high. */ |
| static void config_pin(const struct device *gpio, int pin) |
| { |
| int err; |
| |
| /* Configure this pin as output. */ |
| err = gpio_pin_configure(gpio, pin, GPIO_OUTPUT_ACTIVE); |
| if (err == 0) { |
| /* Write "1" to this pin. */ |
| err = gpio_pin_set(gpio, pin, 1); |
| } |
| |
| /* Wait for the rail to come up and stabilize. */ |
| k_sleep(K_MSEC(10)); |
| } |
| |
| static int pwr_ctrl_init(const struct device *dev) |
| { |
| const struct device *gpio; |
| |
| /* Get handle of the GPIO device. */ |
| gpio = device_get_binding(DT_LABEL(DT_NODELABEL(gpio0))); |
| |
| /* Valid handle? */ |
| if (gpio != NULL) { |
| /* Configure the gpio pin. */ |
| config_pin(gpio, VDD_3V3_PWR_CTRL_GPIO_PIN); |
| config_pin(gpio, VDD_5V0_PWR_CTRL_GPIO_PIN); |
| } |
| |
| return 0; |
| } |
| |
| SYS_INIT(pwr_ctrl_init, POST_KERNEL, 70); |
