通过platform data 管理gpio资源--dev

#include <linux/gpio/machine.h>#include <linux/platform_device.h>#include "board.h"#include "head.h"struct gpiod_lookup_table gpios_table = {.dev_id = "mydev_gpio",.table = {GPIO_LOOKUP_IDX("gpio.0", 15, "led", 0, GPIO_ACTIVE_HIGH),GPIO_LOOKUP_IDX("gpio.0", 16, "led", 1, GPIO_ACTIVE_HIGH),GPIO_LOOKUP_IDX("gpio.0", 17, "led", 2, GPIO_ACTIVE_HIGH),GPIO_LOOKUP("gpio.0", 1, "power", GPIO_ACTIVE_LOW),{ },},};static struct mydev_gpio_platform_data mydev_platform_data = {.name= "mydev",.type= MYDEV_TYPE_FIRST,};static struct platform_device mydev_device = {.name= "mydev_gpio",.id= -1,.dev= {.platform_data = &mydev_platform_data,},};int __init mydev_init(void){gpiod_add_lookup_table(&gpios_table);platform_device_register(&mydev_device);}