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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8c037e0c8e
When CONFIG_MFD_SYSCON is disabled, have the function stubs return
ENOTSUPP to indicate the syscon functionality is not available.
There are currently no callers that depend on the ENOSYS return value.
This patchfixes a checkpatch warning:
WARNING: ENOSYS means 'invalid syscall nr' and nothing else
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
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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(-ENOTSUPP);
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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(-ENOTSUPP);
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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(-ENOTSUPP);
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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(-ENOTSUPP);
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}
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#endif
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#endif /* __LINUX_MFD_SYSCON_H__ */
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