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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_ULPI_DRIVER_H
#define __LINUX_ULPI_DRIVER_H

#include <linux/mod_devicetable.h>

#include <linux/device.h>

struct ulpi_ops;

/**
 * struct ulpi - describes ULPI PHY device
 * @id: vendor and product ids for ULPI device
 * @ops: I/O access
 * @dev: device interface
 */
struct ulpi {
	struct ulpi_device_id id;
	const struct ulpi_ops *ops;
	struct device dev;
};

#define to_ulpi_dev(d) container_of(d, struct ulpi, dev)

static inline void ulpi_set_drvdata(struct ulpi *ulpi, void *data)
{
	dev_set_drvdata(&ulpi->dev, data);
}

static inline void *ulpi_get_drvdata(struct ulpi *ulpi)
{
	return dev_get_drvdata(&ulpi->dev);
}

/**
 * struct ulpi_driver - describes a ULPI PHY driver
 * @id_table: array of device identifiers supported by this driver
 * @probe: binds this driver to ULPI device
 * @remove: unbinds this driver from ULPI device
 * @driver: the name and owner members must be initialized by the drivers
 */
struct ulpi_driver {
	const struct ulpi_device_id *id_table;
	int (*probe)(struct ulpi *ulpi);
	void (*remove)(struct ulpi *ulpi);
	struct device_driver driver;
};

#define to_ulpi_driver(d) container_of(d, struct ulpi_driver, driver)

/*
 * use a macro to avoid include chaining to get THIS_MODULE
 */
#define ulpi_register_driver(drv) __ulpi_register_driver(drv, THIS_MODULE)
int __ulpi_register_driver(struct ulpi_driver *drv, struct module *module);
void ulpi_unregister_driver(struct ulpi_driver *drv);

#define module_ulpi_driver(__ulpi_driver) \
	module_driver(__ulpi_driver, ulpi_register_driver, \
		      ulpi_unregister_driver)

int ulpi_read(struct ulpi *ulpi, u8 addr);
int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val);

#endif /* __LINUX_ULPI_DRIVER_H */