#include <linux/init.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>

#include "platform.h"

static const struct of_device_id lork_ids[] = {
	{ .compatible = "gpio-extern" },
	{},
};

struct platform_driver lork_driver = {
	.probe = lork_probe,
	.remove = lork_remove,
	.driver = {
		.name = "gpio-extern",
		.owner = THIS_MODULE,
		.of_match_table = of_match_ptr(lork_ids),
	}
};

struct class* class;

static int mod_init(void) {
	int err;

	// create /sys/class/lork
	class = class_create("lork");
	if (IS_ERR_OR_NULL(class)) {
		err = PTR_ERR(class);
		printk(KERN_ERR "class_create error %d\n", err);
		goto free_class;
	}

	// create platform driver
	err = platform_driver_register(&lork_driver);
	if (err) goto return_err;

	printk("%s() OK\n", __PRETTY_FUNCTION__);
	return 0;

free_class:
	class_destroy(class);
return_err:
	printk("%s() -> %d\n", __PRETTY_FUNCTION__, err);
	return err;
}

static void mod_exit(void) {
	platform_driver_unregister(&lork_driver);
	class_destroy(class);
	printk("%s()\n", __PRETTY_FUNCTION__);
}

module_init(mod_init);
module_exit(mod_exit);
MODULE_LICENSE("Dual MIT/GPL");