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 * struct phy_ops - set of function pointers for performing phy operations
34 * @init: operation to be performed for initializing phy
35 * @exit: operation to be performed while exiting
36 * @power_on: powering on the phy
37 * @power_off: powering off the phy
38 * @set_mode: set the mode of the phy
39 * @reset: resetting the phy
40 * @owner: the module owner containing the ops
43 int (*init)(struct phy *phy);
44 int (*exit)(struct phy *phy);
45 int (*power_on)(struct phy *phy);
46 int (*power_off)(struct phy *phy);
47 int (*set_mode)(struct phy *phy, enum phy_mode mode);
48 int (*reset)(struct phy *phy);
53 * struct phy_attrs - represents phy attributes
54 * @bus_width: Data path width implemented by PHY
61 * struct phy - represents the phy device
63 * @id: id of the phy device
64 * @ops: function pointers for performing phy operations
65 * @init_data: list of PHY consumers (non-dt only)
66 * @mutex: mutex to protect phy_ops
67 * @init_count: used to protect when the PHY is used by multiple consumers
68 * @power_count: used to protect when the PHY is used by multiple consumers
69 * @phy_attrs: used to specify PHY specific attributes
74 const struct phy_ops *ops;
78 struct phy_attrs attrs;
79 struct regulator *pwr;
83 * struct phy_provider - represents the phy provider
84 * @dev: phy provider device
85 * @owner: the module owner having of_xlate
86 * @of_xlate: function pointer to obtain phy instance from phy pointer
87 * @list: to maintain a linked list of PHY providers
92 struct list_head list;
93 struct phy * (*of_xlate)(struct device *dev,
94 struct of_phandle_args *args);
98 struct list_head node;
104 #define to_phy(a) (container_of((a), struct phy, dev))
106 #define of_phy_provider_register(dev, xlate) \
107 __of_phy_provider_register((dev), THIS_MODULE, (xlate))
109 #define devm_of_phy_provider_register(dev, xlate) \
110 __devm_of_phy_provider_register((dev), THIS_MODULE, (xlate))
112 static inline void phy_set_drvdata(struct phy *phy, void *data)
114 dev_set_drvdata(&phy->dev, data);
117 static inline void *phy_get_drvdata(struct phy *phy)
119 return dev_get_drvdata(&phy->dev);
122 #if IS_ENABLED(CONFIG_GENERIC_PHY)
123 int phy_pm_runtime_get(struct phy *phy);
124 int phy_pm_runtime_get_sync(struct phy *phy);
125 int phy_pm_runtime_put(struct phy *phy);
126 int phy_pm_runtime_put_sync(struct phy *phy);
127 void phy_pm_runtime_allow(struct phy *phy);
128 void phy_pm_runtime_forbid(struct phy *phy);
129 int phy_init(struct phy *phy);
130 int phy_exit(struct phy *phy);
131 int phy_power_on(struct phy *phy);
132 int phy_power_off(struct phy *phy);
133 int phy_set_mode(struct phy *phy, enum phy_mode mode);
134 int phy_reset(struct phy *phy);
135 static inline int phy_get_bus_width(struct phy *phy)
137 return phy->attrs.bus_width;
139 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
141 phy->attrs.bus_width = bus_width;
143 struct phy *phy_get(struct device *dev, const char *string);
144 struct phy *phy_optional_get(struct device *dev, const char *string);
145 struct phy *devm_phy_get(struct device *dev, const char *string);
146 struct phy *devm_phy_optional_get(struct device *dev, const char *string);
147 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
149 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
151 void phy_put(struct phy *phy);
152 void devm_phy_put(struct device *dev, struct phy *phy);
153 struct phy *of_phy_get(struct device_node *np, const char *con_id);
154 struct phy *of_phy_simple_xlate(struct device *dev,
155 struct of_phandle_args *args);
156 struct phy *phy_create(struct device *dev, struct device_node *node,
157 const struct phy_ops *ops);
158 struct phy *devm_phy_create(struct device *dev, struct device_node *node,
159 const struct phy_ops *ops);
160 void phy_destroy(struct phy *phy);
161 void devm_phy_destroy(struct device *dev, struct phy *phy);
162 struct phy_provider *__of_phy_provider_register(struct device *dev,
163 struct module *owner, struct phy * (*of_xlate)(struct device *dev,
164 struct of_phandle_args *args));
165 struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
166 struct module *owner, struct phy * (*of_xlate)(struct device *dev,
167 struct of_phandle_args *args));
168 void of_phy_provider_unregister(struct phy_provider *phy_provider);
169 void devm_of_phy_provider_unregister(struct device *dev,
170 struct phy_provider *phy_provider);
171 int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
172 void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
174 static inline int phy_pm_runtime_get(struct phy *phy)
181 static inline int phy_pm_runtime_get_sync(struct phy *phy)
188 static inline int phy_pm_runtime_put(struct phy *phy)
195 static inline int phy_pm_runtime_put_sync(struct phy *phy)
202 static inline void phy_pm_runtime_allow(struct phy *phy)
207 static inline void phy_pm_runtime_forbid(struct phy *phy)
212 static inline int phy_init(struct phy *phy)
219 static inline int phy_exit(struct phy *phy)
226 static inline int phy_power_on(struct phy *phy)
233 static inline int phy_power_off(struct phy *phy)
240 static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
247 static inline int phy_reset(struct phy *phy)
254 static inline int phy_get_bus_width(struct phy *phy)
259 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
264 static inline struct phy *phy_get(struct device *dev, const char *string)
266 return ERR_PTR(-ENOSYS);
269 static inline struct phy *phy_optional_get(struct device *dev,
272 return ERR_PTR(-ENOSYS);
275 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
277 return ERR_PTR(-ENOSYS);
280 static inline struct phy *devm_phy_optional_get(struct device *dev,
283 return ERR_PTR(-ENOSYS);
286 static inline struct phy *devm_of_phy_get(struct device *dev,
287 struct device_node *np,
290 return ERR_PTR(-ENOSYS);
293 static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
294 struct device_node *np,
297 return ERR_PTR(-ENOSYS);
300 static inline void phy_put(struct phy *phy)
304 static inline void devm_phy_put(struct device *dev, struct phy *phy)
308 static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
310 return ERR_PTR(-ENOSYS);
313 static inline struct phy *of_phy_simple_xlate(struct device *dev,
314 struct of_phandle_args *args)
316 return ERR_PTR(-ENOSYS);
319 static inline struct phy *phy_create(struct device *dev,
320 struct device_node *node,
321 const struct phy_ops *ops)
323 return ERR_PTR(-ENOSYS);
326 static inline struct phy *devm_phy_create(struct device *dev,
327 struct device_node *node,
328 const struct phy_ops *ops)
330 return ERR_PTR(-ENOSYS);
333 static inline void phy_destroy(struct phy *phy)
337 static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
341 static inline struct phy_provider *__of_phy_provider_register(
342 struct device *dev, struct module *owner, struct phy * (*of_xlate)(
343 struct device *dev, struct of_phandle_args *args))
345 return ERR_PTR(-ENOSYS);
348 static inline struct phy_provider *__devm_of_phy_provider_register(struct device
349 *dev, struct module *owner, struct phy * (*of_xlate)(struct device *dev,
350 struct of_phandle_args *args))
352 return ERR_PTR(-ENOSYS);
355 static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
359 static inline void devm_of_phy_provider_unregister(struct device *dev,
360 struct phy_provider *phy_provider)
364 phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
368 static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
369 const char *dev_id) { }
372 #endif /* __DRIVERS_PHY_H */