1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_ULPI_DRIVER_H
3 #define __LINUX_ULPI_DRIVER_H
4
5 #include <linux/mod_devicetable.h>
6
7 #include <linux/device.h>
8
9 struct ulpi_ops;
10
11 /**
12 * struct ulpi - describes ULPI PHY device
13 * @id: vendor and product ids for ULPI device
14 * @ops: I/O access
15 * @dev: device interface
16 */
17 struct ulpi {
18 struct device dev;
19 struct ulpi_device_id id;
20 const struct ulpi_ops *ops;
21 };
22
23 #define to_ulpi_dev(d) container_of(d, struct ulpi, dev)
24
25 static inline void ulpi_set_drvdata(struct ulpi *ulpi, void *data)
26 {
27 dev_set_drvdata(&ulpi->dev, data);
28 }
29
30 static inline void *ulpi_get_drvdata(struct ulpi *ulpi)
31 {
32 return dev_get_drvdata(&ulpi->dev);
33 }
34
35 /**
36 * struct ulpi_driver - describes a ULPI PHY driver
37 * @id_table: array of device identifiers supported by this driver
38 * @probe: binds this driver to ULPI device
39 * @remove: unbinds this driver from ULPI device
40 * @driver: the name and owner members must be initialized by the drivers
41 */
42 struct ulpi_driver {
43 const struct ulpi_device_id *id_table;
44 int (*probe)(struct ulpi *ulpi);
45 void (*remove)(struct ulpi *ulpi);
46 struct device_driver driver;
47 };
48
49 #define to_ulpi_driver(d) container_of(d, struct ulpi_driver, driver)
50
51 /*
52 * use a macro to avoid include chaining to get THIS_MODULE
53 */
54 #define ulpi_register_driver(drv) __ulpi_register_driver(drv, THIS_MODULE)
55 int __ulpi_register_driver(struct ulpi_driver *drv, struct module *module);
56 void ulpi_unregister_driver(struct ulpi_driver *drv);
57
58 #define module_ulpi_driver(__ulpi_driver) \
59 module_driver(__ulpi_driver, ulpi_register_driver, \
60 ulpi_unregister_driver)
61
62 int ulpi_read(struct ulpi *ulpi, u8 addr);
63 int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val);
64
65 #endif /* __LINUX_ULPI_DRIVER_H */
66
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