Release 4.10 include/linux/mfd/syscon.h

/*
 * System Control Driver
 *
 * Copyright (C) 2012 Freescale Semiconductor, Inc.
 * Copyright (C) 2012 Linaro Ltd.
 *
 * Author: Dong Aisheng <dong.aisheng@linaro.org>
 *
 * 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 __LINUX_MFD_SYSCON_H__

#define __LINUX_MFD_SYSCON_H__

#include <linux/err.h>
#include <linux/errno.h>

struct device_node;

#ifdef CONFIG_MFD_SYSCON
extern struct regmap *syscon_node_to_regmap(struct device_node *np);
extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s);
extern struct regmap *syscon_regmap_lookup_by_phandle(
					struct device_node *np,
					const char *property);
#else


static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
{
	return ERR_PTR(-ENOTSUPP);
}

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static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
{
	return ERR_PTR(-ENOTSUPP);
}

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static inline struct regmap *syscon_regmap_lookup_by_pdevname(const char *s)
{
	return ERR_PTR(-ENOTSUPP);
}

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static inline struct regmap *syscon_regmap_lookup_by_phandle(
					struct device_node *np,
					const char *property)
{
	return ERR_PTR(-ENOTSUPP);
}
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#endif

#endif /* __LINUX_MFD_SYSCON_H__ */
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Directory: include/linux/mfd

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