Release 4.12 include/linux/phy/phy.h

Directory: include/linux/phy
/*
 * phy.h -- generic phy header file
 *
 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
 *
 * Author: Kishon Vijay Abraham I <kishon@ti.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef __DRIVERS_PHY_H

#define __DRIVERS_PHY_H

#include <linux/err.h>
#include <linux/of.h>
#include <linux/device.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>

struct phy;


enum phy_mode {
	
PHY_MODE_INVALID,
	
PHY_MODE_USB_HOST,
	
PHY_MODE_USB_DEVICE,
	
PHY_MODE_USB_OTG,
};

/**
 * struct phy_ops - set of function pointers for performing phy operations
 * @init: operation to be performed for initializing phy
 * @exit: operation to be performed while exiting
 * @power_on: powering on the phy
 * @power_off: powering off the phy
 * @set_mode: set the mode of the phy
 * @reset: resetting the phy
 * @owner: the module owner containing the ops
 */

struct phy_ops {
	
int	(*init)(struct phy *phy);
	
int	(*exit)(struct phy *phy);
	
int	(*power_on)(struct phy *phy);
	
int	(*power_off)(struct phy *phy);
	
int	(*set_mode)(struct phy *phy, enum phy_mode mode);
	
int	(*reset)(struct phy *phy);
	
struct module *owner;
};

/**
 * struct phy_attrs - represents phy attributes
 * @bus_width: Data path width implemented by PHY
 */

struct phy_attrs {
	
u32			bus_width;
};

/**
 * struct phy - represents the phy device
 * @dev: phy device
 * @id: id of the phy device
 * @ops: function pointers for performing phy operations
 * @init_data: list of PHY consumers (non-dt only)
 * @mutex: mutex to protect phy_ops
 * @init_count: used to protect when the PHY is used by multiple consumers
 * @power_count: used to protect when the PHY is used by multiple consumers
 * @phy_attrs: used to specify PHY specific attributes
 */

struct phy {
	
struct device		dev;
	
int			id;
	
const struct phy_ops	*ops;
	
struct mutex		mutex;
	
int			init_count;
	
int			power_count;
	
struct phy_attrs	attrs;
	
struct regulator	*pwr;
};

/**
 * struct phy_provider - represents the phy provider
 * @dev: phy provider device
 * @owner: the module owner having of_xlate
 * @of_xlate: function pointer to obtain phy instance from phy pointer
 * @list: to maintain a linked list of PHY providers
 */

struct phy_provider {
	
struct device		*dev;
	
struct device_node	*children;
	
struct module		*owner;
	
struct list_head	list;
	
struct phy * (*of_xlate)(struct device *dev,
		struct of_phandle_args *args);
};


struct phy_lookup {
	
struct list_head node;
	
const char *dev_id;
	
const char *con_id;
	
struct phy *phy;
};


#define	to_phy(a)	(container_of((a), struct phy, dev))


#define	of_phy_provider_register(dev, xlate)	\
	__of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))


#define	devm_of_phy_provider_register(dev, xlate)	\
	__devm_of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))


#define of_phy_provider_register_full(dev, children, xlate) \
	__of_phy_provider_register(dev, children, THIS_MODULE, xlate)


#define devm_of_phy_provider_register_full(dev, children, xlate) \
	__devm_of_phy_provider_register(dev, children, THIS_MODULE, xlate)



static inline void phy_set_drvdata(struct phy *phy, void *data)
{
	dev_set_drvdata(&phy->dev, data);
}

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static inline void *phy_get_drvdata(struct phy *phy)
{
	return dev_get_drvdata(&phy->dev);
}

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#if IS_ENABLED(CONFIG_GENERIC_PHY)
int phy_pm_runtime_get(struct phy *phy);
int phy_pm_runtime_get_sync(struct phy *phy);
int phy_pm_runtime_put(struct phy *phy);
int phy_pm_runtime_put_sync(struct phy *phy);
void phy_pm_runtime_allow(struct phy *phy);
void phy_pm_runtime_forbid(struct phy *phy);
int phy_init(struct phy *phy);
int phy_exit(struct phy *phy);
int phy_power_on(struct phy *phy);
int phy_power_off(struct phy *phy);
int phy_set_mode(struct phy *phy, enum phy_mode mode);
int phy_reset(struct phy *phy);


static inline int phy_get_bus_width(struct phy *phy)
{
	return phy->attrs.bus_width;
}
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static inline void phy_set_bus_width(struct phy *phy, int bus_width)
{
	phy->attrs.bus_width = bus_width;
}
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struct phy *phy_get(struct device *dev, const char *string);
struct phy *phy_optional_get(struct device *dev, const char *string);
struct phy *devm_phy_get(struct device *dev, const char *string);
struct phy *devm_phy_optional_get(struct device *dev, const char *string);
struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
			    const char *con_id);
struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
				     int index);
void phy_put(struct phy *phy);
void devm_phy_put(struct device *dev, struct phy *phy);
struct phy *of_phy_get(struct device_node *np, const char *con_id);
struct phy *of_phy_simple_xlate(struct device *dev,
	struct of_phandle_args *args);
struct phy *phy_create(struct device *dev, struct device_node *node,
		       const struct phy_ops *ops);
struct phy *devm_phy_create(struct device *dev, struct device_node *node,
			    const struct phy_ops *ops);
void phy_destroy(struct phy *phy);
void devm_phy_destroy(struct device *dev, struct phy *phy);
struct phy_provider *__of_phy_provider_register(struct device *dev,
	struct device_node *children, struct module *owner,
	struct phy * (*of_xlate)(struct device *dev,
				 struct of_phandle_args *args));
struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
	struct device_node *children, struct module *owner,
	struct phy * (*of_xlate)(struct device *dev,
				 struct of_phandle_args *args));
void of_phy_provider_unregister(struct phy_provider *phy_provider);
void devm_of_phy_provider_unregister(struct device *dev,
	struct phy_provider *phy_provider);
int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
#else


static inline int phy_pm_runtime_get(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_pm_runtime_get_sync(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_pm_runtime_put(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_pm_runtime_put_sync(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline void phy_pm_runtime_allow(struct phy *phy)
{
	return;
}

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static inline void phy_pm_runtime_forbid(struct phy *phy)
{
	return;
}

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static inline int phy_init(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_exit(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_power_on(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_power_off(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_reset(struct phy *phy)
{
	if (!phy)
		return 0;
	return -ENOSYS;
}

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static inline int phy_get_bus_width(struct phy *phy)
{
	return -ENOSYS;
}

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static inline void phy_set_bus_width(struct phy *phy, int bus_width)
{
	return;
}

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static inline struct phy *phy_get(struct device *dev, const char *string)
{
	return ERR_PTR(-ENOSYS);
}

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static inline struct phy *phy_optional_get(struct device *dev,
					   const char *string)
{
	return ERR_PTR(-ENOSYS);
}

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static inline struct phy *devm_phy_get(struct device *dev, const char *string)
{
	return ERR_PTR(-ENOSYS);
}

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static inline struct phy *devm_phy_optional_get(struct device *dev,
						const char *string)
{
	return ERR_PTR(-ENOSYS);
}

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static inline struct phy *devm_of_phy_get(struct device *dev,
					  struct device_node *np,
					  const char *con_id)
{
	return ERR_PTR(-ENOSYS);
}

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static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
						   struct device_node *np,
						   int index)
{
	return ERR_PTR(-ENOSYS);
}

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static inline void phy_put(struct phy *phy)
{
}

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static inline void devm_phy_put(struct device *dev, struct phy *phy)
{
}

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static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
{
	return ERR_PTR(-ENOSYS);
}

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static inline struct phy *of_phy_simple_xlate(struct device *dev,
	struct of_phandle_args *args)
{
	return ERR_PTR(-ENOSYS);
}

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static inline struct phy *phy_create(struct device *dev,
				     struct device_node *node,
				     const struct phy_ops *ops)
{
	return ERR_PTR(-ENOSYS);
}

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static inline struct phy *devm_phy_create(struct device *dev,
					  struct device_node *node,
					  const struct phy_ops *ops)
{
	return ERR_PTR(-ENOSYS);
}

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static inline void phy_destroy(struct phy *phy)
{
}

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static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
{
}

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static inline struct phy_provider *__of_phy_provider_register(
	struct device *dev, struct device_node *children, struct module *owner,
	struct phy * (*of_xlate)(struct device *dev,
				 struct of_phandle_args *args))
{
	return ERR_PTR(-ENOSYS);
}


static inline struct phy_provider *__devm_of_phy_provider_register(struct device
	*dev, struct device_node *children, struct module *owner,
	struct phy * (*of_xlate)(struct device *dev,
				 struct of_phandle_args *args))
{
	return ERR_PTR(-ENOSYS);
}



static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
{
}

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static inline void devm_of_phy_provider_unregister(struct device *dev,
	struct phy_provider *phy_provider)
{
}
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static inline int

phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
{
	return 0;
}
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static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
				     const char *dev_id) { }
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#endif

#endif /* __DRIVERS_PHY_H */
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Kamil Debski 94 5.59% 2 13.33%
Matt Porter 88 5.23% 1 6.67%
Andrew Lunn 84 5.00% 1 6.67%
David Lechner 69 4.10% 1 6.67%
Grygorii Strashko 64 3.81% 1 6.67%
Thierry Reding 51 3.03% 1 6.67%
Arun Ramamurthy 48 2.86% 1 6.67%
Randy Li 46 2.74% 2 13.33%
Roger Quadros 8 0.48% 1 6.67%
Total 1681 100.00% 15 100.00%
Directory: include/linux/phy

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Release 4.12 include/linux/phy/phy.h

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