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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/linux/mfd/syscon.h
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * System Control Driver
5 * Copyright (C) 2012 Freescale Semiconductor, Inc.
6 * Copyright (C) 2012 Linaro Ltd.
8 * Author: Dong Aisheng <dong.aisheng@linaro.org>
11 #ifndef __LINUX_MFD_SYSCON_H__
12 #define __LINUX_MFD_SYSCON_H__
14 #include <linux/err.h>
15 #include <linux/errno.h>
19 #ifdef CONFIG_MFD_SYSCON
20 extern struct regmap
*device_node_to_regmap(struct device_node
*np
);
21 extern struct regmap
*syscon_node_to_regmap(struct device_node
*np
);
22 extern struct regmap
*syscon_regmap_lookup_by_compatible(const char *s
);
23 extern struct regmap
*syscon_regmap_lookup_by_phandle(
24 struct device_node
*np
,
25 const char *property
);
26 extern struct regmap
*syscon_regmap_lookup_by_phandle_args(
27 struct device_node
*np
,
30 unsigned int *out_args
);
32 static inline struct regmap
*device_node_to_regmap(struct device_node
*np
)
34 return ERR_PTR(-ENOTSUPP
);
37 static inline struct regmap
*syscon_node_to_regmap(struct device_node
*np
)
39 return ERR_PTR(-ENOTSUPP
);
42 static inline struct regmap
*syscon_regmap_lookup_by_compatible(const char *s
)
44 return ERR_PTR(-ENOTSUPP
);
47 static inline struct regmap
*syscon_regmap_lookup_by_phandle(
48 struct device_node
*np
,
51 return ERR_PTR(-ENOTSUPP
);
54 static inline struct regmap
*syscon_regmap_lookup_by_phandle_args(
55 struct device_node
*np
,
58 unsigned int *out_args
)
60 return ERR_PTR(-ENOTSUPP
);
64 #endif /* __LINUX_MFD_SYSCON_H__ */