[linux-2.6-block.git] / include / linux / mfd / syscon.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * System Control Driver
 *
 * Copyright (C) 2012 Freescale Semiconductor, Inc.
 * Copyright (C) 2012 Linaro Ltd.
 *
 * Author: Dong Aisheng <dong.aisheng@linaro.org>
 */

#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
struct regmap *device_node_to_regmap(struct device_node *np);
struct regmap *syscon_node_to_regmap(struct device_node *np);
struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np,
					       const char *property);
struct regmap *syscon_regmap_lookup_by_phandle_args(struct device_node *np,
						    const char *property,
						    int arg_count,
						    unsigned int *out_args);
struct regmap *syscon_regmap_lookup_by_phandle_optional(struct device_node *np,
							const char *property);
int of_syscon_register_regmap(struct device_node *np,
			      struct regmap *regmap);
#else
static inline struct regmap *device_node_to_regmap(struct device_node *np)
{
	return ERR_PTR(-ENOTSUPP);
}

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

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

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

static inline struct regmap *syscon_regmap_lookup_by_phandle_args(
					struct device_node *np,
					const char *property,
					int arg_count,
					unsigned int *out_args)
{
	return ERR_PTR(-ENOTSUPP);
}

static inline struct regmap *syscon_regmap_lookup_by_phandle_optional(
					struct device_node *np,
					const char *property)
{
	return NULL;
}

static inline int of_syscon_register_regmap(struct device_node *np,
					struct regmap *regmap)
{
	return -EOPNOTSUPP;
}

#endif

#endif /* __LINUX_MFD_SYSCON_H__ */
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
87d68730 DA	2	/*
	3	* System Control Driver
	4	*
	5	* Copyright (C) 2012 Freescale Semiconductor, Inc.
	6	* Copyright (C) 2012 Linaro Ltd.
	7	*
	8	* Author: Dong Aisheng <dong.aisheng@linaro.org>
87d68730 DA	9	*/
	10
	11	#ifndef __LINUX_MFD_SYSCON_H__
	12	#define __LINUX_MFD_SYSCON_H__
	13
3d237990	14	#include <linux/err.h>
adae28c5	15	#include <linux/errno.h>
3d237990	16
5fb1c2dd SN	17	struct device_node;
5fb1c2dd SN	18
df73de9b	19	#ifdef CONFIG_MFD_SYSCON
0db017f8 PG	20	struct regmap device_node_to_regmap(struct device_node np);
	21	struct regmap syscon_node_to_regmap(struct device_node np);
	22	struct regmap syscon_regmap_lookup_by_compatible(const char s);
	23	struct regmap syscon_regmap_lookup_by_phandle(struct device_node np,
	24	const char *property);
	25	struct regmap syscon_regmap_lookup_by_phandle_args(struct device_node np,
	26	const char *property,
	27	int arg_count,
	28	unsigned int *out_args);
	29	struct regmap syscon_regmap_lookup_by_phandle_optional(struct device_node np,
	30	const char *property);
769cb631 PG	31	int of_syscon_register_regmap(struct device_node *np,
769cb631 PG	32	struct regmap *regmap);
df73de9b	33	#else
39233b7c PC	34	static inline struct regmap device_node_to_regmap(struct device_node np)
	35	{
	36	return ERR_PTR(-ENOTSUPP);
	37	}
	38
df73de9b PC	39	static inline struct regmap syscon_node_to_regmap(struct device_node np)
df73de9b PC	40	{
8c037e0c	41	return ERR_PTR(-ENOTSUPP);
df73de9b PC	42	}
	43
	44	static inline struct regmap syscon_regmap_lookup_by_compatible(const char s)
	45	{
8c037e0c	46	return ERR_PTR(-ENOTSUPP);
df73de9b PC	47	}
df73de9b PC	48
df73de9b PC	49	static inline struct regmap *syscon_regmap_lookup_by_phandle(
	50	struct device_node *np,
	51	const char *property)
	52	{
8c037e0c	53	return ERR_PTR(-ENOTSUPP);
df73de9b	54	}
6a24f567	55
5312f321	56	static inline struct regmap *syscon_regmap_lookup_by_phandle_args(
6a24f567 OZ	57	struct device_node *np,
	58	const char *property,
	59	int arg_count,
	60	unsigned int *out_args)
	61	{
	62	return ERR_PTR(-ENOTSUPP);
	63	}
86b9d170 EBS	64
	65	static inline struct regmap *syscon_regmap_lookup_by_phandle_optional(
	66	struct device_node *np,
	67	const char *property)
	68	{
	69	return NULL;
	70	}
	71
769cb631 PG	72	static inline int of_syscon_register_regmap(struct device_node *np,
	73	struct regmap *regmap)
	74	{
	75	return -EOPNOTSUPP;
	76	}
	77
df73de9b PC	78	#endif
df73de9b PC	79
87d68730	80	#endif /* __LINUX_MFD_SYSCON_H__ */