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 * @owner: the module owner containing the ops
42 int (*init)(struct phy *phy);
43 int (*exit)(struct phy *phy);
44 int (*power_on)(struct phy *phy);
45 int (*power_off)(struct phy *phy);
46 int (*set_mode)(struct phy *phy, enum phy_mode mode);
51 * struct phy_attrs - represents phy attributes
52 * @bus_width: Data path width implemented by PHY
59 * struct phy - represents the phy device
61 * @id: id of the phy device
62 * @ops: function pointers for performing phy operations
63 * @init_data: list of PHY consumers (non-dt only)
64 * @mutex: mutex to protect phy_ops
65 * @init_count: used to protect when the PHY is used by multiple consumers
66 * @power_count: used to protect when the PHY is used by multiple consumers
67 * @phy_attrs: used to specify PHY specific attributes
72 const struct phy_ops *ops;
76 struct phy_attrs attrs;
77 struct regulator *pwr;
81 * struct phy_provider - represents the phy provider
82 * @dev: phy provider device
83 * @owner: the module owner having of_xlate
84 * @of_xlate: function pointer to obtain phy instance from phy pointer
85 * @list: to maintain a linked list of PHY providers
90 struct list_head list;
91 struct phy * (*of_xlate)(struct device *dev,
92 struct of_phandle_args *args);
96 struct list_head node;
102 #define to_phy(a) (container_of((a), struct phy, dev))
104 #define of_phy_provider_register(dev, xlate) \
105 __of_phy_provider_register((dev), THIS_MODULE, (xlate))
107 #define devm_of_phy_provider_register(dev, xlate) \
108 __devm_of_phy_provider_register((dev), THIS_MODULE, (xlate))
110 static inline void phy_set_drvdata(struct phy *phy, void *data)
112 dev_set_drvdata(&phy->dev, data);
115 static inline void *phy_get_drvdata(struct phy *phy)
117 return dev_get_drvdata(&phy->dev);
120 #if IS_ENABLED(CONFIG_GENERIC_PHY)
121 int phy_pm_runtime_get(struct phy *phy);
122 int phy_pm_runtime_get_sync(struct phy *phy);
123 int phy_pm_runtime_put(struct phy *phy);
124 int phy_pm_runtime_put_sync(struct phy *phy);
125 void phy_pm_runtime_allow(struct phy *phy);
126 void phy_pm_runtime_forbid(struct phy *phy);
127 int phy_init(struct phy *phy);
128 int phy_exit(struct phy *phy);
129 int phy_power_on(struct phy *phy);
130 int phy_power_off(struct phy *phy);
131 int phy_set_mode(struct phy *phy, enum phy_mode mode);
132 static inline int phy_get_bus_width(struct phy *phy)
134 return phy->attrs.bus_width;
136 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
138 phy->attrs.bus_width = bus_width;
140 struct phy *phy_get(struct device *dev, const char *string);
141 struct phy *phy_optional_get(struct device *dev, const char *string);
142 struct phy *devm_phy_get(struct device *dev, const char *string);
143 struct phy *devm_phy_optional_get(struct device *dev, const char *string);
144 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
146 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
148 void phy_put(struct phy *phy);
149 void devm_phy_put(struct device *dev, struct phy *phy);
150 struct phy *of_phy_get(struct device_node *np, const char *con_id);
151 struct phy *of_phy_simple_xlate(struct device *dev,
152 struct of_phandle_args *args);
153 struct phy *phy_create(struct device *dev, struct device_node *node,
154 const struct phy_ops *ops);
155 struct phy *devm_phy_create(struct device *dev, struct device_node *node,
156 const struct phy_ops *ops);
157 void phy_destroy(struct phy *phy);
158 void devm_phy_destroy(struct device *dev, struct phy *phy);
159 struct phy_provider *__of_phy_provider_register(struct device *dev,
160 struct module *owner, struct phy * (*of_xlate)(struct device *dev,
161 struct of_phandle_args *args));
162 struct phy_provider *__devm_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 void of_phy_provider_unregister(struct phy_provider *phy_provider);
166 void devm_of_phy_provider_unregister(struct device *dev,
167 struct phy_provider *phy_provider);
168 int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
169 void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
171 static inline int phy_pm_runtime_get(struct phy *phy)
178 static inline int phy_pm_runtime_get_sync(struct phy *phy)
185 static inline int phy_pm_runtime_put(struct phy *phy)
192 static inline int phy_pm_runtime_put_sync(struct phy *phy)
199 static inline void phy_pm_runtime_allow(struct phy *phy)
204 static inline void phy_pm_runtime_forbid(struct phy *phy)
209 static inline int phy_init(struct phy *phy)
216 static inline int phy_exit(struct phy *phy)
223 static inline int phy_power_on(struct phy *phy)
230 static inline int phy_power_off(struct phy *phy)
237 static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
244 static inline int phy_get_bus_width(struct phy *phy)
249 static inline void phy_set_bus_width(struct phy *phy, int bus_width)
254 static inline struct phy *phy_get(struct device *dev, const char *string)
256 return ERR_PTR(-ENOSYS);
259 static inline struct phy *phy_optional_get(struct device *dev,
262 return ERR_PTR(-ENOSYS);
265 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
267 return ERR_PTR(-ENOSYS);
270 static inline struct phy *devm_phy_optional_get(struct device *dev,
273 return ERR_PTR(-ENOSYS);
276 static inline struct phy *devm_of_phy_get(struct device *dev,
277 struct device_node *np,
280 return ERR_PTR(-ENOSYS);
283 static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
284 struct device_node *np,
287 return ERR_PTR(-ENOSYS);
290 static inline void phy_put(struct phy *phy)
294 static inline void devm_phy_put(struct device *dev, struct phy *phy)
298 static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
300 return ERR_PTR(-ENOSYS);
303 static inline struct phy *of_phy_simple_xlate(struct device *dev,
304 struct of_phandle_args *args)
306 return ERR_PTR(-ENOSYS);
309 static inline struct phy *phy_create(struct device *dev,
310 struct device_node *node,
311 const struct phy_ops *ops)
313 return ERR_PTR(-ENOSYS);
316 static inline struct phy *devm_phy_create(struct device *dev,
317 struct device_node *node,
318 const struct phy_ops *ops)
320 return ERR_PTR(-ENOSYS);
323 static inline void phy_destroy(struct phy *phy)
327 static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
331 static inline struct phy_provider *__of_phy_provider_register(
332 struct device *dev, struct module *owner, struct phy * (*of_xlate)(
333 struct device *dev, struct of_phandle_args *args))
335 return ERR_PTR(-ENOSYS);
338 static inline struct phy_provider *__devm_of_phy_provider_register(struct device
339 *dev, struct module *owner, struct phy * (*of_xlate)(struct device *dev,
340 struct of_phandle_args *args))
342 return ERR_PTR(-ENOSYS);
345 static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
349 static inline void devm_of_phy_provider_unregister(struct device *dev,
350 struct phy_provider *phy_provider)
354 phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
358 static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
359 const char *dev_id) { }
362 #endif /* __DRIVERS_PHY_H */