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通過platform data 管理gpio資源--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);
}