2 * phy.h -- generic phy header file
4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
6 * Author: Kishon Vijay Abraham I <kishon@ti.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #ifndef __DRIVERS_PHY_H
15 #define __DRIVERS_PHY_H
17 #include <linux/err.h>
19 #include <linux/device.h>
20 #include <linux/pm_runtime.h>
21 #include <linux/regulator/consumer.h>
33 PHY_MODE_USB_DEVICE_LS,
34 PHY_MODE_USB_DEVICE_FS,
35 PHY_MODE_USB_DEVICE_HS,
36 PHY_MODE_USB_DEVICE_SS,
45 * struct phy_ops - set of function pointers for performing phy operations
46 * @init: operation to be performed for initializing phy
47 * @exit: operation to be performed while exiting
48 * @power_on: powering on the phy
49 * @power_off: powering off the phy
50 * @set_mode: set the mode of the phy
51 * @reset: resetting the phy
52 * @calibrate: calibrate the phy
53 * @owner: the module owner containing the ops
56 int (*init)(struct phy *phy);
57 int (*exit)(struct phy *phy);
58 int (*power_on)(struct phy *phy);
59 int (*power_off)(struct phy *phy);
60 int (*set_mode)(struct phy *phy, enum phy_mode mode);
61 int (*reset)(struct phy *phy);
62 int (*calibrate)(struct phy *phy);
67 * struct phy_attrs - represents phy attributes
68 * @bus_width: Data path width implemented by PHY
76 * struct phy - represents the phy device
78 * @id: id of the phy device
79 * @ops: function pointers for performing phy operations
80 * @init_data: list of PHY consumers (non-dt only)
81 * @mutex: mutex to protect phy_ops
82 * @init_count: used to protect when the PHY is used by multiple consumers
83 * @power_count: used to protect when the PHY is used by multiple consumers
84 * @attrs: used to specify PHY specific attributes
85 * @pwr: power regulator associated with the phy
90 const struct phy_ops *ops;
94 struct phy_attrs attrs;
95 struct regulator *pwr;
99 * struct phy_provider - represents the phy provider
100 * @dev: phy provider device
101 * @children: can be used to override the default (dev->of_node) child node
102 * @owner: the module owner having of_xlate
103 * @list: to maintain a linked list of PHY providers
104 * @of_xlate: function pointer to obtain phy instance from phy pointer
106 struct phy_provider {
108 struct device_node *children;
109 struct module *owner;
110 struct list_head list;
111 struct phy * (*of_xlate)(struct device *dev,
112 struct of_phandle_args *args);
116 * struct phy_lookup - PHY association in list of phys managed by the phy driver
118 * @dev_id: the device of the association
119 * @con_id: connection ID string on device
120 * @phy: the phy of the association
123 struct list_head node;
129 #define to_phy(a) (container_of((a), struct phy, dev))
131 #define of_phy_provider_register(dev, xlate) \
132 __of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
134 #define devm_of_phy_provider_register(dev, xlate) \
135 __devm_of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
137 #define of_phy_provider_register_full(dev, children, xlate) \
138 __of_phy_provider_register(dev, children, THIS_MODULE, xlate)
140 #define devm_of_phy_provider_register_full(dev, children, xlate) \
141 __devm_of_phy_provider_register(dev, children, THIS_MODULE, xlate)
143 static inline void phy_set_drvdata(struct phy *phy, void *data)
145 dev_set_drvdata(&phy->dev, data);
148 static inline void *phy_get_drvdata(struct phy *phy)
150 return dev_get_drvdata(&phy->dev);
153 #if IS_ENABLED(CONFIG_GENERIC_PHY)
154 int phy_pm_runtime_get(struct phy *phy);
155 int phy_pm_runtime_get_sync(struct phy *phy);
156 int phy_pm_runtime_put(struct phy *phy);
157 int phy_pm_runtime_put_sync(struct phy *phy);
158 void phy_pm_runtime_allow(struct phy *phy);
159 void phy_pm_runtime_forbid(struct phy *phy);
160 int phy_init(struct phy *phy);
161 int phy_exit(struct phy *phy);
162 int phy_power_on(struct phy *phy);
163 int phy_power_off(struct phy *phy);
164 int phy_set_mode(struct phy *phy, enum phy_mode mode);
165 static inline enum phy_mode phy_get_mode(struct phy *phy)
167 return phy->attrs.mode;
169 int phy_reset(struct phy *phy);
170 int phy_calibrate(struct phy *phy);
171 static inline int phy_get_bus_width(struct phy *phy)
173 return phy->attrs.bus_width;
175 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
177 phy->attrs.bus_width = bus_width;
179 struct phy *phy_get(struct device *dev, const char *string);
180 struct phy *phy_optional_get(struct device *dev, const char *string);
181 struct phy *devm_phy_get(struct device *dev, const char *string);
182 struct phy *devm_phy_optional_get(struct device *dev, const char *string);
183 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
185 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
187 void phy_put(struct phy *phy);
188 void devm_phy_put(struct device *dev, struct phy *phy);
189 struct phy *of_phy_get(struct device_node *np, const char *con_id);
190 struct phy *of_phy_simple_xlate(struct device *dev,
191 struct of_phandle_args *args);
192 struct phy *phy_create(struct device *dev, struct device_node *node,
193 const struct phy_ops *ops);
194 struct phy *devm_phy_create(struct device *dev, struct device_node *node,
195 const struct phy_ops *ops);
196 void phy_destroy(struct phy *phy);
197 void devm_phy_destroy(struct device *dev, struct phy *phy);
198 struct phy_provider *__of_phy_provider_register(struct device *dev,
199 struct device_node *children, struct module *owner,
200 struct phy * (*of_xlate)(struct device *dev,
201 struct of_phandle_args *args));
202 struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
203 struct device_node *children, struct module *owner,
204 struct phy * (*of_xlate)(struct device *dev,
205 struct of_phandle_args *args));
206 void of_phy_provider_unregister(struct phy_provider *phy_provider);
207 void devm_of_phy_provider_unregister(struct device *dev,
208 struct phy_provider *phy_provider);
209 int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
210 void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
212 static inline int phy_pm_runtime_get(struct phy *phy)
219 static inline int phy_pm_runtime_get_sync(struct phy *phy)
226 static inline int phy_pm_runtime_put(struct phy *phy)
233 static inline int phy_pm_runtime_put_sync(struct phy *phy)
240 static inline void phy_pm_runtime_allow(struct phy *phy)
245 static inline void phy_pm_runtime_forbid(struct phy *phy)
250 static inline int phy_init(struct phy *phy)
257 static inline int phy_exit(struct phy *phy)
264 static inline int phy_power_on(struct phy *phy)
271 static inline int phy_power_off(struct phy *phy)
278 static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
285 static inline enum phy_mode phy_get_mode(struct phy *phy)
287 return PHY_MODE_INVALID;
290 static inline int phy_reset(struct phy *phy)
297 static inline int phy_calibrate(struct phy *phy)
304 static inline int phy_get_bus_width(struct phy *phy)
309 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
314 static inline struct phy *phy_get(struct device *dev, const char *string)
316 return ERR_PTR(-ENOSYS);
319 static inline struct phy *phy_optional_get(struct device *dev,
322 return ERR_PTR(-ENOSYS);
325 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
327 return ERR_PTR(-ENOSYS);
330 static inline struct phy *devm_phy_optional_get(struct device *dev,
336 static inline struct phy *devm_of_phy_get(struct device *dev,
337 struct device_node *np,
340 return ERR_PTR(-ENOSYS);
343 static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
344 struct device_node *np,
347 return ERR_PTR(-ENOSYS);
350 static inline void phy_put(struct phy *phy)
354 static inline void devm_phy_put(struct device *dev, struct phy *phy)
358 static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
360 return ERR_PTR(-ENOSYS);
363 static inline struct phy *of_phy_simple_xlate(struct device *dev,
364 struct of_phandle_args *args)
366 return ERR_PTR(-ENOSYS);
369 static inline struct phy *phy_create(struct device *dev,
370 struct device_node *node,
371 const struct phy_ops *ops)
373 return ERR_PTR(-ENOSYS);
376 static inline struct phy *devm_phy_create(struct device *dev,
377 struct device_node *node,
378 const struct phy_ops *ops)
380 return ERR_PTR(-ENOSYS);
383 static inline void phy_destroy(struct phy *phy)
387 static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
391 static inline struct phy_provider *__of_phy_provider_register(
392 struct device *dev, struct device_node *children, struct module *owner,
393 struct phy * (*of_xlate)(struct device *dev,
394 struct of_phandle_args *args))
396 return ERR_PTR(-ENOSYS);
399 static inline struct phy_provider *__devm_of_phy_provider_register(struct device
400 *dev, struct device_node *children, struct module *owner,
401 struct phy * (*of_xlate)(struct device *dev,
402 struct of_phandle_args *args))
404 return ERR_PTR(-ENOSYS);
407 static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
411 static inline void devm_of_phy_provider_unregister(struct device *dev,
412 struct phy_provider *phy_provider)
416 phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
420 static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
421 const char *dev_id) { }
424 #endif /* __DRIVERS_PHY_H */