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>
35 * struct phy_ops - set of function pointers for performing phy operations
36 * @init: operation to be performed for initializing phy
37 * @exit: operation to be performed while exiting
38 * @power_on: powering on the phy
39 * @power_off: powering off the phy
40 * @set_mode: set the mode of the phy
41 * @reset: resetting the phy
42 * @owner: the module owner containing the ops
45 int (*init)(struct phy *phy);
46 int (*exit)(struct phy *phy);
47 int (*power_on)(struct phy *phy);
48 int (*power_off)(struct phy *phy);
49 int (*set_mode)(struct phy *phy, enum phy_mode mode);
50 int (*reset)(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
93 struct device_node *children;
95 struct list_head list;
96 struct phy * (*of_xlate)(struct device *dev,
97 struct of_phandle_args *args);
101 struct list_head node;
107 #define to_phy(a) (container_of((a), struct phy, dev))
109 #define of_phy_provider_register(dev, xlate) \
110 __of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
112 #define devm_of_phy_provider_register(dev, xlate) \
113 __devm_of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
115 #define of_phy_provider_register_full(dev, children, xlate) \
116 __of_phy_provider_register(dev, children, THIS_MODULE, xlate)
118 #define devm_of_phy_provider_register_full(dev, children, xlate) \
119 __devm_of_phy_provider_register(dev, children, THIS_MODULE, xlate)
121 static inline void phy_set_drvdata(struct phy *phy, void *data)
123 dev_set_drvdata(&phy->dev, data);
126 static inline void *phy_get_drvdata(struct phy *phy)
128 return dev_get_drvdata(&phy->dev);
131 #if IS_ENABLED(CONFIG_GENERIC_PHY)
132 int phy_pm_runtime_get(struct phy *phy);
133 int phy_pm_runtime_get_sync(struct phy *phy);
134 int phy_pm_runtime_put(struct phy *phy);
135 int phy_pm_runtime_put_sync(struct phy *phy);
136 void phy_pm_runtime_allow(struct phy *phy);
137 void phy_pm_runtime_forbid(struct phy *phy);
138 int phy_init(struct phy *phy);
139 int phy_exit(struct phy *phy);
140 int phy_power_on(struct phy *phy);
141 int phy_power_off(struct phy *phy);
142 int phy_set_mode(struct phy *phy, enum phy_mode mode);
143 int phy_reset(struct phy *phy);
144 static inline int phy_get_bus_width(struct phy *phy)
146 return phy->attrs.bus_width;
148 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
150 phy->attrs.bus_width = bus_width;
152 struct phy *phy_get(struct device *dev, const char *string);
153 struct phy *phy_optional_get(struct device *dev, const char *string);
154 struct phy *devm_phy_get(struct device *dev, const char *string);
155 struct phy *devm_phy_optional_get(struct device *dev, const char *string);
156 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
158 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
160 void phy_put(struct phy *phy);
161 void devm_phy_put(struct device *dev, struct phy *phy);
162 struct phy *of_phy_get(struct device_node *np, const char *con_id);
163 struct phy *of_phy_simple_xlate(struct device *dev,
164 struct of_phandle_args *args);
165 struct phy *phy_create(struct device *dev, struct device_node *node,
166 const struct phy_ops *ops);
167 struct phy *devm_phy_create(struct device *dev, struct device_node *node,
168 const struct phy_ops *ops);
169 void phy_destroy(struct phy *phy);
170 void devm_phy_destroy(struct device *dev, struct phy *phy);
171 struct phy_provider *__of_phy_provider_register(struct device *dev,
172 struct device_node *children, struct module *owner,
173 struct phy * (*of_xlate)(struct device *dev,
174 struct of_phandle_args *args));
175 struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
176 struct device_node *children, struct module *owner,
177 struct phy * (*of_xlate)(struct device *dev,
178 struct of_phandle_args *args));
179 void of_phy_provider_unregister(struct phy_provider *phy_provider);
180 void devm_of_phy_provider_unregister(struct device *dev,
181 struct phy_provider *phy_provider);
182 int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
183 void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
185 static inline int phy_pm_runtime_get(struct phy *phy)
192 static inline int phy_pm_runtime_get_sync(struct phy *phy)
199 static inline int phy_pm_runtime_put(struct phy *phy)
206 static inline int phy_pm_runtime_put_sync(struct phy *phy)
213 static inline void phy_pm_runtime_allow(struct phy *phy)
218 static inline void phy_pm_runtime_forbid(struct phy *phy)
223 static inline int phy_init(struct phy *phy)
230 static inline int phy_exit(struct phy *phy)
237 static inline int phy_power_on(struct phy *phy)
244 static inline int phy_power_off(struct phy *phy)
251 static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
258 static inline int phy_reset(struct phy *phy)
265 static inline int phy_get_bus_width(struct phy *phy)
270 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
275 static inline struct phy *phy_get(struct device *dev, const char *string)
277 return ERR_PTR(-ENOSYS);
280 static inline struct phy *phy_optional_get(struct device *dev,
283 return ERR_PTR(-ENOSYS);
286 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
288 return ERR_PTR(-ENOSYS);
291 static inline struct phy *devm_phy_optional_get(struct device *dev,
294 return ERR_PTR(-ENOSYS);
297 static inline struct phy *devm_of_phy_get(struct device *dev,
298 struct device_node *np,
301 return ERR_PTR(-ENOSYS);
304 static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
305 struct device_node *np,
308 return ERR_PTR(-ENOSYS);
311 static inline void phy_put(struct phy *phy)
315 static inline void devm_phy_put(struct device *dev, struct phy *phy)
319 static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
321 return ERR_PTR(-ENOSYS);
324 static inline struct phy *of_phy_simple_xlate(struct device *dev,
325 struct of_phandle_args *args)
327 return ERR_PTR(-ENOSYS);
330 static inline struct phy *phy_create(struct device *dev,
331 struct device_node *node,
332 const struct phy_ops *ops)
334 return ERR_PTR(-ENOSYS);
337 static inline struct phy *devm_phy_create(struct device *dev,
338 struct device_node *node,
339 const struct phy_ops *ops)
341 return ERR_PTR(-ENOSYS);
344 static inline void phy_destroy(struct phy *phy)
348 static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
352 static inline struct phy_provider *__of_phy_provider_register(
353 struct device *dev, struct device_node *children, struct module *owner,
354 struct phy * (*of_xlate)(struct device *dev,
355 struct of_phandle_args *args))
357 return ERR_PTR(-ENOSYS);
360 static inline struct phy_provider *__devm_of_phy_provider_register(struct device
361 *dev, struct device_node *children, struct module *owner,
362 struct phy * (*of_xlate)(struct device *dev,
363 struct of_phandle_args *args))
365 return ERR_PTR(-ENOSYS);
368 static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
372 static inline void devm_of_phy_provider_unregister(struct device *dev,
373 struct phy_provider *phy_provider)
377 phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
381 static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
382 const char *dev_id) { }
385 #endif /* __DRIVERS_PHY_H */