| /* |
| * Copyright (c) 2024 Leon Rinkel <leon@rinkel.me> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Automatically turns on backlight if display is configured, i.e. display DT |
| * node has status okay. |
| */ |
| |
| #include <zephyr/devicetree.h> |
| #include <zephyr/drivers/gpio.h> |
| #include <zephyr/init.h> |
| |
| #define DISPLAY_NODE DT_CHOSEN(zephyr_display) |
| |
| #if DT_NODE_HAS_STATUS(DISPLAY_NODE, okay) |
| static const struct gpio_dt_spec backlight = GPIO_DT_SPEC_GET(DT_ALIAS(backlight), gpios); |
| #endif |
| |
| void board_late_init_hook(void) |
| { |
| #if DT_NODE_HAS_STATUS(DISPLAY_NODE, okay) |
| if (gpio_is_ready_dt(&backlight)) { |
| gpio_pin_configure_dt(&backlight, GPIO_OUTPUT_ACTIVE); |
| } |
| #endif |
| } |
