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 * @cp_test: prepare for the phy compliance test
41 * @owner: the module owner containing the ops
44 int (*init)(struct phy *phy);
45 int (*exit)(struct phy *phy);
46 int (*power_on)(struct phy *phy);
47 int (*power_off)(struct phy *phy);
48 int (*set_mode)(struct phy *phy, enum phy_mode mode);
49 int (*reset)(struct phy *phy);
50 int (*cp_test)(struct phy *phy);
55 * struct phy_attrs - represents phy attributes
56 * @bus_width: Data path width implemented by PHY
63 * struct phy - represents the phy device
65 * @id: id of the phy device
66 * @ops: function pointers for performing phy operations
67 * @init_data: list of PHY consumers (non-dt only)
68 * @mutex: mutex to protect phy_ops
69 * @init_count: used to protect when the PHY is used by multiple consumers
70 * @power_count: used to protect when the PHY is used by multiple consumers
71 * @phy_attrs: used to specify PHY specific attributes
76 const struct phy_ops *ops;
80 struct phy_attrs attrs;
81 struct regulator *pwr;
85 * struct phy_provider - represents the phy provider
86 * @dev: phy provider device
87 * @owner: the module owner having of_xlate
88 * @of_xlate: function pointer to obtain phy instance from phy pointer
89 * @list: to maintain a linked list of PHY providers
94 struct list_head list;
95 struct phy * (*of_xlate)(struct device *dev,
96 struct of_phandle_args *args);
100 struct list_head node;
106 #define to_phy(a) (container_of((a), struct phy, dev))
108 #define of_phy_provider_register(dev, xlate) \
109 __of_phy_provider_register((dev), THIS_MODULE, (xlate))
111 #define devm_of_phy_provider_register(dev, xlate) \
112 __devm_of_phy_provider_register((dev), THIS_MODULE, (xlate))
114 static inline void phy_set_drvdata(struct phy *phy, void *data)
116 dev_set_drvdata(&phy->dev, data);
119 static inline void *phy_get_drvdata(struct phy *phy)
121 return dev_get_drvdata(&phy->dev);
124 #if IS_ENABLED(CONFIG_GENERIC_PHY)
125 int phy_pm_runtime_get(struct phy *phy);
126 int phy_pm_runtime_get_sync(struct phy *phy);
127 int phy_pm_runtime_put(struct phy *phy);
128 int phy_pm_runtime_put_sync(struct phy *phy);
129 void phy_pm_runtime_allow(struct phy *phy);
130 void phy_pm_runtime_forbid(struct phy *phy);
131 int phy_init(struct phy *phy);
132 int phy_exit(struct phy *phy);
133 int phy_power_on(struct phy *phy);
134 int phy_power_off(struct phy *phy);
135 int phy_set_mode(struct phy *phy, enum phy_mode mode);
136 int phy_reset(struct phy *phy);
137 int phy_cp_test(struct phy *phy);
138 static inline int phy_get_bus_width(struct phy *phy)
140 return phy->attrs.bus_width;
142 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
144 phy->attrs.bus_width = bus_width;
146 struct phy *phy_get(struct device *dev, const char *string);
147 struct phy *phy_optional_get(struct device *dev, const char *string);
148 struct phy *devm_phy_get(struct device *dev, const char *string);
149 struct phy *devm_phy_optional_get(struct device *dev, const char *string);
150 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
152 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
154 void phy_put(struct phy *phy);
155 void devm_phy_put(struct device *dev, struct phy *phy);
156 struct phy *of_phy_get(struct device_node *np, const char *con_id);
157 struct phy *of_phy_simple_xlate(struct device *dev,
158 struct of_phandle_args *args);
159 struct phy *phy_create(struct device *dev, struct device_node *node,
160 const struct phy_ops *ops);
161 struct phy *devm_phy_create(struct device *dev, struct device_node *node,
162 const struct phy_ops *ops);
163 void phy_destroy(struct phy *phy);
164 void devm_phy_destroy(struct device *dev, struct phy *phy);
165 struct phy_provider *__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 struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
169 struct module *owner, struct phy * (*of_xlate)(struct device *dev,
170 struct of_phandle_args *args));
171 void of_phy_provider_unregister(struct phy_provider *phy_provider);
172 void devm_of_phy_provider_unregister(struct device *dev,
173 struct phy_provider *phy_provider);
174 int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
175 void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
177 static inline int phy_pm_runtime_get(struct phy *phy)
184 static inline int phy_pm_runtime_get_sync(struct phy *phy)
191 static inline int phy_pm_runtime_put(struct phy *phy)
198 static inline int phy_pm_runtime_put_sync(struct phy *phy)
205 static inline void phy_pm_runtime_allow(struct phy *phy)
210 static inline void phy_pm_runtime_forbid(struct phy *phy)
215 static inline int phy_init(struct phy *phy)
222 static inline int phy_exit(struct phy *phy)
229 static inline int phy_power_on(struct phy *phy)
236 static inline int phy_power_off(struct phy *phy)
243 static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
250 static inline int phy_reset(struct phy *phy)
257 static inline int phy_cp_test(struct phy *phy)
264 static inline int phy_get_bus_width(struct phy *phy)
269 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
274 static inline struct phy *phy_get(struct device *dev, const char *string)
276 return ERR_PTR(-ENOSYS);
279 static inline struct phy *phy_optional_get(struct device *dev,
282 return ERR_PTR(-ENOSYS);
285 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
287 return ERR_PTR(-ENOSYS);
290 static inline struct phy *devm_phy_optional_get(struct device *dev,
293 return ERR_PTR(-ENOSYS);
296 static inline struct phy *devm_of_phy_get(struct device *dev,
297 struct device_node *np,
300 return ERR_PTR(-ENOSYS);
303 static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
304 struct device_node *np,
307 return ERR_PTR(-ENOSYS);
310 static inline void phy_put(struct phy *phy)
314 static inline void devm_phy_put(struct device *dev, struct phy *phy)
318 static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
320 return ERR_PTR(-ENOSYS);
323 static inline struct phy *of_phy_simple_xlate(struct device *dev,
324 struct of_phandle_args *args)
326 return ERR_PTR(-ENOSYS);
329 static inline struct phy *phy_create(struct device *dev,
330 struct device_node *node,
331 const struct phy_ops *ops)
333 return ERR_PTR(-ENOSYS);
336 static inline struct phy *devm_phy_create(struct device *dev,
337 struct device_node *node,
338 const struct phy_ops *ops)
340 return ERR_PTR(-ENOSYS);
343 static inline void phy_destroy(struct phy *phy)
347 static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
351 static inline struct phy_provider *__of_phy_provider_register(
352 struct device *dev, struct module *owner, struct phy * (*of_xlate)(
353 struct device *dev, struct of_phandle_args *args))
355 return ERR_PTR(-ENOSYS);
358 static inline struct phy_provider *__devm_of_phy_provider_register(struct device
359 *dev, struct module *owner, struct phy * (*of_xlate)(struct device *dev,
360 struct of_phandle_args *args))
362 return ERR_PTR(-ENOSYS);
365 static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
369 static inline void devm_of_phy_provider_unregister(struct device *dev,
370 struct phy_provider *phy_provider)
374 phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
378 static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
379 const char *dev_id) { }
382 #endif /* __DRIVERS_PHY_H */