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,
46 * struct phy_ops - set of function pointers for performing phy operations
47 * @init: operation to be performed for initializing phy
48 * @exit: operation to be performed while exiting
49 * @power_on: powering on the phy
50 * @power_off: powering off the phy
51 * @set_mode: set the mode of the phy
52 * @reset: resetting the phy
53 * @calibrate: calibrate the phy
54 * @owner: the module owner containing the ops
57 int (*init)(struct phy *phy);
58 int (*exit)(struct phy *phy);
59 int (*power_on)(struct phy *phy);
60 int (*power_off)(struct phy *phy);
61 int (*set_mode)(struct phy *phy, enum phy_mode mode);
62 int (*reset)(struct phy *phy);
63 int (*calibrate)(struct phy *phy);
68 * struct phy_attrs - represents phy attributes
69 * @bus_width: Data path width implemented by PHY
77 * struct phy - represents the phy device
79 * @id: id of the phy device
80 * @ops: function pointers for performing phy operations
81 * @init_data: list of PHY consumers (non-dt only)
82 * @mutex: mutex to protect phy_ops
83 * @init_count: used to protect when the PHY is used by multiple consumers
84 * @power_count: used to protect when the PHY is used by multiple consumers
85 * @attrs: used to specify PHY specific attributes
86 * @pwr: power regulator associated with the phy
91 const struct phy_ops *ops;
95 struct phy_attrs attrs;
96 struct regulator *pwr;
100 * struct phy_provider - represents the phy provider
101 * @dev: phy provider device
102 * @children: can be used to override the default (dev->of_node) child node
103 * @owner: the module owner having of_xlate
104 * @list: to maintain a linked list of PHY providers
105 * @of_xlate: function pointer to obtain phy instance from phy pointer
107 struct phy_provider {
109 struct device_node *children;
110 struct module *owner;
111 struct list_head list;
112 struct phy * (*of_xlate)(struct device *dev,
113 struct of_phandle_args *args);
117 * struct phy_lookup - PHY association in list of phys managed by the phy driver
119 * @dev_id: the device of the association
120 * @con_id: connection ID string on device
121 * @phy: the phy of the association
124 struct list_head node;
130 #define to_phy(a) (container_of((a), struct phy, dev))
132 #define of_phy_provider_register(dev, xlate) \
133 __of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
135 #define devm_of_phy_provider_register(dev, xlate) \
136 __devm_of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
138 #define of_phy_provider_register_full(dev, children, xlate) \
139 __of_phy_provider_register(dev, children, THIS_MODULE, xlate)
141 #define devm_of_phy_provider_register_full(dev, children, xlate) \
142 __devm_of_phy_provider_register(dev, children, THIS_MODULE, xlate)
144 static inline void phy_set_drvdata(struct phy *phy, void *data)
146 dev_set_drvdata(&phy->dev, data);
149 static inline void *phy_get_drvdata(struct phy *phy)
151 return dev_get_drvdata(&phy->dev);
154 #if IS_ENABLED(CONFIG_GENERIC_PHY)
155 int phy_pm_runtime_get(struct phy *phy);
156 int phy_pm_runtime_get_sync(struct phy *phy);
157 int phy_pm_runtime_put(struct phy *phy);
158 int phy_pm_runtime_put_sync(struct phy *phy);
159 void phy_pm_runtime_allow(struct phy *phy);
160 void phy_pm_runtime_forbid(struct phy *phy);
161 int phy_init(struct phy *phy);
162 int phy_exit(struct phy *phy);
163 int phy_power_on(struct phy *phy);
164 int phy_power_off(struct phy *phy);
165 int phy_set_mode(struct phy *phy, enum phy_mode mode);
166 static inline enum phy_mode phy_get_mode(struct phy *phy)
168 return phy->attrs.mode;
170 int phy_reset(struct phy *phy);
171 int phy_calibrate(struct phy *phy);
172 static inline int phy_get_bus_width(struct phy *phy)
174 return phy->attrs.bus_width;
176 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
178 phy->attrs.bus_width = bus_width;
180 struct phy *phy_get(struct device *dev, const char *string);
181 struct phy *phy_optional_get(struct device *dev, const char *string);
182 struct phy *devm_phy_get(struct device *dev, const char *string);
183 struct phy *devm_phy_optional_get(struct device *dev, const char *string);
184 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
186 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
188 void phy_put(struct phy *phy);
189 void devm_phy_put(struct device *dev, struct phy *phy);
190 struct phy *of_phy_get(struct device_node *np, const char *con_id);
191 struct phy *of_phy_simple_xlate(struct device *dev,
192 struct of_phandle_args *args);
193 struct phy *phy_create(struct device *dev, struct device_node *node,
194 const struct phy_ops *ops);
195 struct phy *devm_phy_create(struct device *dev, struct device_node *node,
196 const struct phy_ops *ops);
197 void phy_destroy(struct phy *phy);
198 void devm_phy_destroy(struct device *dev, struct phy *phy);
199 struct phy_provider *__of_phy_provider_register(struct device *dev,
200 struct device_node *children, struct module *owner,
201 struct phy * (*of_xlate)(struct device *dev,
202 struct of_phandle_args *args));
203 struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
204 struct device_node *children, struct module *owner,
205 struct phy * (*of_xlate)(struct device *dev,
206 struct of_phandle_args *args));
207 void of_phy_provider_unregister(struct phy_provider *phy_provider);
208 void devm_of_phy_provider_unregister(struct device *dev,
209 struct phy_provider *phy_provider);
210 int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
211 void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
213 static inline int phy_pm_runtime_get(struct phy *phy)
220 static inline int phy_pm_runtime_get_sync(struct phy *phy)
227 static inline int phy_pm_runtime_put(struct phy *phy)
234 static inline int phy_pm_runtime_put_sync(struct phy *phy)
241 static inline void phy_pm_runtime_allow(struct phy *phy)
246 static inline void phy_pm_runtime_forbid(struct phy *phy)
251 static inline int phy_init(struct phy *phy)
258 static inline int phy_exit(struct phy *phy)
265 static inline int phy_power_on(struct phy *phy)
272 static inline int phy_power_off(struct phy *phy)
279 static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
286 static inline enum phy_mode phy_get_mode(struct phy *phy)
288 return PHY_MODE_INVALID;
291 static inline int phy_reset(struct phy *phy)
298 static inline int phy_calibrate(struct phy *phy)
305 static inline int phy_get_bus_width(struct phy *phy)
310 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
315 static inline struct phy *phy_get(struct device *dev, const char *string)
317 return ERR_PTR(-ENOSYS);
320 static inline struct phy *phy_optional_get(struct device *dev,
323 return ERR_PTR(-ENOSYS);
326 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
328 return ERR_PTR(-ENOSYS);
331 static inline struct phy *devm_phy_optional_get(struct device *dev,
337 static inline struct phy *devm_of_phy_get(struct device *dev,
338 struct device_node *np,
341 return ERR_PTR(-ENOSYS);
344 static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
345 struct device_node *np,
348 return ERR_PTR(-ENOSYS);
351 static inline void phy_put(struct phy *phy)
355 static inline void devm_phy_put(struct device *dev, struct phy *phy)
359 static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
361 return ERR_PTR(-ENOSYS);
364 static inline struct phy *of_phy_simple_xlate(struct device *dev,
365 struct of_phandle_args *args)
367 return ERR_PTR(-ENOSYS);
370 static inline struct phy *phy_create(struct device *dev,
371 struct device_node *node,
372 const struct phy_ops *ops)
374 return ERR_PTR(-ENOSYS);
377 static inline struct phy *devm_phy_create(struct device *dev,
378 struct device_node *node,
379 const struct phy_ops *ops)
381 return ERR_PTR(-ENOSYS);
384 static inline void phy_destroy(struct phy *phy)
388 static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
392 static inline struct phy_provider *__of_phy_provider_register(
393 struct device *dev, struct device_node *children, struct module *owner,
394 struct phy * (*of_xlate)(struct device *dev,
395 struct of_phandle_args *args))
397 return ERR_PTR(-ENOSYS);
400 static inline struct phy_provider *__devm_of_phy_provider_register(struct device
401 *dev, struct device_node *children, struct module *owner,
402 struct phy * (*of_xlate)(struct device *dev,
403 struct of_phandle_args *args))
405 return ERR_PTR(-ENOSYS);
408 static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
412 static inline void devm_of_phy_provider_unregister(struct device *dev,
413 struct phy_provider *phy_provider)
417 phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
421 static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
422 const char *dev_id) { }
425 #endif /* __DRIVERS_PHY_H */