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>
26 * struct phy_ops - set of function pointers for performing phy operations
27 * @init: operation to be performed for initializing phy
28 * @exit: operation to be performed while exiting
29 * @power_on: powering on the phy
30 * @power_off: powering off the phy
31 * @owner: the module owner containing the ops
34 int (*init)(struct phy *phy);
35 int (*exit)(struct phy *phy);
36 int (*power_on)(struct phy *phy);
37 int (*power_off)(struct phy *phy);
42 * struct phy_attrs - represents phy attributes
43 * @bus_width: Data path width implemented by PHY
50 * struct phy - represents the phy device
52 * @id: id of the phy device
53 * @ops: function pointers for performing phy operations
54 * @init_data: list of PHY consumers (non-dt only)
55 * @mutex: mutex to protect phy_ops
56 * @init_count: used to protect when the PHY is used by multiple consumers
57 * @power_count: used to protect when the PHY is used by multiple consumers
58 * @phy_attrs: used to specify PHY specific attributes
63 const struct phy_ops *ops;
67 struct phy_attrs attrs;
68 struct regulator *pwr;
72 * struct phy_provider - represents the phy provider
73 * @dev: phy provider device
74 * @owner: the module owner having of_xlate
75 * @of_xlate: function pointer to obtain phy instance from phy pointer
76 * @list: to maintain a linked list of PHY providers
80 struct device_node *children;
82 struct list_head list;
83 struct phy * (*of_xlate)(struct device *dev,
84 struct of_phandle_args *args);
88 struct list_head node;
94 #define to_phy(a) (container_of((a), struct phy, dev))
96 #define of_phy_provider_register(dev, xlate) \
97 __of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
99 #define devm_of_phy_provider_register(dev, xlate) \
100 __devm_of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
102 #define of_phy_provider_register_full(dev, children, xlate) \
103 __of_phy_provider_register(dev, children, THIS_MODULE, xlate)
105 #define devm_of_phy_provider_register_full(dev, children, xlate) \
106 __devm_of_phy_provider_register(dev, children, THIS_MODULE, xlate)
108 static inline void phy_set_drvdata(struct phy *phy, void *data)
110 dev_set_drvdata(&phy->dev, data);
113 static inline void *phy_get_drvdata(struct phy *phy)
115 return dev_get_drvdata(&phy->dev);
118 #if IS_ENABLED(CONFIG_GENERIC_PHY)
119 int phy_pm_runtime_get(struct phy *phy);
120 int phy_pm_runtime_get_sync(struct phy *phy);
121 int phy_pm_runtime_put(struct phy *phy);
122 int phy_pm_runtime_put_sync(struct phy *phy);
123 void phy_pm_runtime_allow(struct phy *phy);
124 void phy_pm_runtime_forbid(struct phy *phy);
125 int phy_init(struct phy *phy);
126 int phy_exit(struct phy *phy);
127 int phy_power_on(struct phy *phy);
128 int phy_power_off(struct phy *phy);
129 static inline int phy_get_bus_width(struct phy *phy)
131 return phy->attrs.bus_width;
133 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
135 phy->attrs.bus_width = bus_width;
137 struct phy *phy_get(struct device *dev, const char *string);
138 struct phy *phy_optional_get(struct device *dev, const char *string);
139 struct phy *devm_phy_get(struct device *dev, const char *string);
140 struct phy *devm_phy_optional_get(struct device *dev, const char *string);
141 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
143 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
145 void phy_put(struct phy *phy);
146 void devm_phy_put(struct device *dev, struct phy *phy);
147 struct phy *of_phy_get(struct device_node *np, const char *con_id);
148 struct phy *of_phy_simple_xlate(struct device *dev,
149 struct of_phandle_args *args);
150 struct phy *phy_create(struct device *dev, struct device_node *node,
151 const struct phy_ops *ops);
152 struct phy *devm_phy_create(struct device *dev, struct device_node *node,
153 const struct phy_ops *ops);
154 void phy_destroy(struct phy *phy);
155 void devm_phy_destroy(struct device *dev, struct phy *phy);
156 struct phy_provider *__of_phy_provider_register(struct device *dev,
157 struct device_node *children, struct module *owner,
158 struct phy * (*of_xlate)(struct device *dev,
159 struct of_phandle_args *args));
160 struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
161 struct device_node *children, struct module *owner,
162 struct phy * (*of_xlate)(struct device *dev,
163 struct of_phandle_args *args));
164 void of_phy_provider_unregister(struct phy_provider *phy_provider);
165 void devm_of_phy_provider_unregister(struct device *dev,
166 struct phy_provider *phy_provider);
167 int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
168 void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
170 static inline int phy_pm_runtime_get(struct phy *phy)
177 static inline int phy_pm_runtime_get_sync(struct phy *phy)
184 static inline int phy_pm_runtime_put(struct phy *phy)
191 static inline int phy_pm_runtime_put_sync(struct phy *phy)
198 static inline void phy_pm_runtime_allow(struct phy *phy)
203 static inline void phy_pm_runtime_forbid(struct phy *phy)
208 static inline int phy_init(struct phy *phy)
215 static inline int phy_exit(struct phy *phy)
222 static inline int phy_power_on(struct phy *phy)
229 static inline int phy_power_off(struct phy *phy)
236 static inline int phy_get_bus_width(struct phy *phy)
241 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
246 static inline struct phy *phy_get(struct device *dev, const char *string)
248 return ERR_PTR(-ENOSYS);
251 static inline struct phy *phy_optional_get(struct device *dev,
254 return ERR_PTR(-ENOSYS);
257 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
259 return ERR_PTR(-ENOSYS);
262 static inline struct phy *devm_phy_optional_get(struct device *dev,
265 return ERR_PTR(-ENOSYS);
268 static inline struct phy *devm_of_phy_get(struct device *dev,
269 struct device_node *np,
272 return ERR_PTR(-ENOSYS);
275 static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
276 struct device_node *np,
279 return ERR_PTR(-ENOSYS);
282 static inline void phy_put(struct phy *phy)
286 static inline void devm_phy_put(struct device *dev, struct phy *phy)
290 static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
292 return ERR_PTR(-ENOSYS);
295 static inline struct phy *of_phy_simple_xlate(struct device *dev,
296 struct of_phandle_args *args)
298 return ERR_PTR(-ENOSYS);
301 static inline struct phy *phy_create(struct device *dev,
302 struct device_node *node,
303 const struct phy_ops *ops)
305 return ERR_PTR(-ENOSYS);
308 static inline struct phy *devm_phy_create(struct device *dev,
309 struct device_node *node,
310 const struct phy_ops *ops)
312 return ERR_PTR(-ENOSYS);
315 static inline void phy_destroy(struct phy *phy)
319 static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
323 static inline struct phy_provider *__of_phy_provider_register(
324 struct device *dev, struct device_node *children, struct module *owner,
325 struct phy * (*of_xlate)(struct device *dev,
326 struct of_phandle_args *args))
328 return ERR_PTR(-ENOSYS);
331 static inline struct phy_provider *__devm_of_phy_provider_register(struct device
332 *dev, struct device_node *children, struct module *owner,
333 struct phy * (*of_xlate)(struct device *dev,
334 struct of_phandle_args *args))
336 return ERR_PTR(-ENOSYS);
339 static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
343 static inline void devm_of_phy_provider_unregister(struct device *dev,
344 struct phy_provider *phy_provider)
348 phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
352 static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
353 const char *dev_id) { }
356 #endif /* __DRIVERS_PHY_H */