#include <linux/module.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>

#define IS_USE_STATIC_PLATFORM_DATA 0

struct CHIP {
	struct spi_device *spi;
};

#if IS_USE_STATIC_PLATFORM_DATA
struct CHIP_platform_data {
	int spi_ch;
};
#endif // IS_USE_STATIC_PLATFORM_DATA

static int CHIP_probe(struct spi_device *spi)
{
	struct CHIP			*chip;
#if IS_USE_STATIC_PLATFORM_DATA
	struct CHIP_platform_data	*pdata;

	/* assuming the driver requires board-specific data: */
	pdata = (struct CHIP_platform_data *)&spi->dev.platform_data;
	if (!pdata)
		return -ENODEV;
#endif // IS_USE_STATIC_PLATFORM_DATA

	/* get memory for driver's per-chip state */
	chip = kzalloc(sizeof *chip, GFP_KERNEL);
	if (!chip)
		return -ENOMEM;

	spi_set_drvdata(spi, chip);

	return 0;
}

int CHIP_remove(struct spi_device *spi)
{
	struct CHIP *chip = NULL;

	chip = (struct CHIP *)spi_get_drvdata(spi);

	kfree(chip);

	return 0;
}

#ifdef CONFIG_OF
static const struct of_device_id CHIP_of_match[] = {
	{ .compatible = "nxp,pn5180", },
	{ }
};

MODULE_DEVICE_TABLE(of, CHIP_of_match);			// Used by file2alias, which indicated what devices are support with this drive.
#endif // CONFIG_OF

static struct spi_driver CHIP_driver = {
	.driver = {
		.name           = "CHIP",
		.owner          = THIS_MODULE,
#ifdef CONFIG_OF
		.of_match_table = CHIP_of_match,
#endif // CONFIG_OF
	},
	.probe  = CHIP_probe,
	.remove	= CHIP_remove,
};

module_spi_driver(CHIP_driver);

MODULE_AUTHOR("Gao yang <gaoyang3513@163.com>");
MODULE_DESCRIPTION("NXP PN5180 NFC driver");
MODULE_LICENSE("GPL");