[mirror_ubuntu-bionic-kernel.git] / include / linux / reset.h

#ifndef _LINUX_RESET_H_
#define _LINUX_RESET_H_

struct device;
struct device_node;
struct reset_control;

#ifdef CONFIG_RESET_CONTROLLER

int reset_control_reset(struct reset_control *rstc);
int reset_control_assert(struct reset_control *rstc);
int reset_control_deassert(struct reset_control *rstc);
int reset_control_status(struct reset_control *rstc);

struct reset_control *reset_control_get(struct device *dev, const char *id);
void reset_control_put(struct reset_control *rstc);
struct reset_control *devm_reset_control_get(struct device *dev, const char *id);

int __must_check device_reset(struct device *dev);

static inline int device_reset_optional(struct device *dev)
{
	return device_reset(dev);
}

static inline struct reset_control *reset_control_get_optional(
					struct device *dev, const char *id)
{
	return reset_control_get(dev, id);
}

static inline struct reset_control *devm_reset_control_get_optional(
					struct device *dev, const char *id)
{
	return devm_reset_control_get(dev, id);
}

struct reset_control *of_reset_control_get(struct device_node *node,
					   const char *id);

#else

static inline int reset_control_reset(struct reset_control *rstc)
{
	WARN_ON(1);
	return 0;
}

static inline int reset_control_assert(struct reset_control *rstc)
{
	WARN_ON(1);
	return 0;
}

static inline int reset_control_deassert(struct reset_control *rstc)
{
	WARN_ON(1);
	return 0;
}

static inline int reset_control_status(struct reset_control *rstc)
{
	WARN_ON(1);
	return 0;
}

static inline void reset_control_put(struct reset_control *rstc)
{
	WARN_ON(1);
}

static inline int device_reset_optional(struct device *dev)
{
	return -ENOSYS;
}

static inline struct reset_control *reset_control_get_optional(
					struct device *dev, const char *id)
{
	return ERR_PTR(-ENOSYS);
}

static inline struct reset_control *devm_reset_control_get_optional(
					struct device *dev, const char *id)
{
	return ERR_PTR(-ENOSYS);
}

static inline struct reset_control *of_reset_control_get(
				struct device_node *node, const char *id)
{
	return ERR_PTR(-ENOSYS);
}

#endif /* CONFIG_RESET_CONTROLLER */

#endif
Commit	Line	Data
61fc4131 PZ	1	#ifndef _LINUX_RESET_H_
	2	#define _LINUX_RESET_H_
	3
	4	struct device;
e3ec0a8c	5	struct device_node;
61fc4131 PZ	6	struct reset_control;
61fc4131 PZ	7
b424080a PZ	8	#ifdef CONFIG_RESET_CONTROLLER
b424080a PZ	9
61fc4131 PZ	10	int reset_control_reset(struct reset_control *rstc);
	11	int reset_control_assert(struct reset_control *rstc);
	12	int reset_control_deassert(struct reset_control *rstc);
729de41b	13	int reset_control_status(struct reset_control *rstc);
61fc4131 PZ	14
	15	struct reset_control reset_control_get(struct device dev, const char *id);
	16	void reset_control_put(struct reset_control *rstc);
	17	struct reset_control devm_reset_control_get(struct device dev, const char *id);
	18
b424080a PZ	19	int __must_check device_reset(struct device *dev);
	20
	21	static inline int device_reset_optional(struct device *dev)
	22	{
	23	return device_reset(dev);
	24	}
	25
	26	static inline struct reset_control *reset_control_get_optional(
	27	struct device dev, const char id)
	28	{
	29	return reset_control_get(dev, id);
	30	}
	31
	32	static inline struct reset_control *devm_reset_control_get_optional(
	33	struct device dev, const char id)
	34	{
	35	return devm_reset_control_get(dev, id);
	36	}
	37
e3ec0a8c HG	38	struct reset_control of_reset_control_get(struct device_node node,
	39	const char *id);
	40
b424080a PZ	41	#else
	42
	43	static inline int reset_control_reset(struct reset_control *rstc)
	44	{
	45	WARN_ON(1);
	46	return 0;
	47	}
	48
	49	static inline int reset_control_assert(struct reset_control *rstc)
	50	{
	51	WARN_ON(1);
	52	return 0;
	53	}
	54
	55	static inline int reset_control_deassert(struct reset_control *rstc)
	56	{
	57	WARN_ON(1);
	58	return 0;
	59	}
	60
729de41b DN	61	static inline int reset_control_status(struct reset_control *rstc)
	62	{
	63	WARN_ON(1);
	64	return 0;
	65	}
	66
b424080a PZ	67	static inline void reset_control_put(struct reset_control *rstc)
	68	{
	69	WARN_ON(1);
	70	}
	71
	72	static inline int device_reset_optional(struct device *dev)
	73	{
	74	return -ENOSYS;
	75	}
	76
	77	static inline struct reset_control *reset_control_get_optional(
	78	struct device dev, const char id)
	79	{
	80	return ERR_PTR(-ENOSYS);
	81	}
	82
	83	static inline struct reset_control *devm_reset_control_get_optional(
	84	struct device dev, const char id)
	85	{
	86	return ERR_PTR(-ENOSYS);
	87	}
	88
e3ec0a8c HG	89	static inline struct reset_control *of_reset_control_get(
	90	struct device_node node, const char id)
	91	{
	92	return ERR_PTR(-ENOSYS);
	93	}
	94
b424080a	95	#endif /* CONFIG_RESET_CONTROLLER */
61fc4131 PZ	96
61fc4131 PZ	97	#endif