54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
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/*
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* System Control Driver
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*
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* Copyright (C) 2012 Freescale Semiconductor, Inc.
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* Copyright (C) 2012 Linaro Ltd.
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*
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* Author: Dong Aisheng <dong.aisheng@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __LINUX_MFD_SYSCON_H__
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#define __LINUX_MFD_SYSCON_H__
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#include <linux/err.h>
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struct device_node;
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#ifdef CONFIG_MFD_SYSCON
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extern struct regmap *syscon_node_to_regmap(struct device_node *np);
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extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
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extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s);
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extern struct regmap *syscon_regmap_lookup_by_phandle(
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struct device_node *np,
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const char *property);
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#else
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static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline struct regmap *syscon_regmap_lookup_by_pdevname(const char *s)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline struct regmap *syscon_regmap_lookup_by_phandle(
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struct device_node *np,
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const char *property)
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{
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return ERR_PTR(-ENOSYS);
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}
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#endif
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#endif /* __LINUX_MFD_SYSCON_H__ */
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