[linux-2.6-block.git] / drivers / gpio / gpiolib.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Internal GPIO functions.
 *
 * Copyright (C) 2013, Intel Corporation
 * Author: Mika Westerberg <mika.westerberg@linux.intel.com>
 */

#ifndef GPIOLIB_H
#define GPIOLIB_H

#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/gpio/consumer.h> /* for enum gpiod_flags */
#include <linux/gpio/driver.h>
#include <linux/module.h>
#include <linux/notifier.h>
#include <linux/rwsem.h>

#define GPIOCHIP_NAME	"gpiochip"

/**
 * struct gpio_device - internal state container for GPIO devices
 * @dev: the GPIO device struct
 * @chrdev: character device for the GPIO device
 * @id: numerical ID number for the GPIO chip
 * @mockdev: class device used by the deprecated sysfs interface (may be
 * NULL)
 * @owner: helps prevent removal of modules exporting active GPIOs
 * @chip: pointer to the corresponding gpiochip, holding static
 * data for this device
 * @descs: array of ngpio descriptors.
 * @ngpio: the number of GPIO lines on this GPIO device, equal to the size
 * of the @descs array.
 * @base: GPIO base in the DEPRECATED global Linux GPIO numberspace, assigned
 * at device creation time.
 * @label: a descriptive name for the GPIO device, such as the part number
 * or name of the IP component in a System on Chip.
 * @data: per-instance data assigned by the driver
 * @list: links gpio_device:s together for traversal
 * @line_state_notifier: used to notify subscribers about lines being
 *                       requested, released or reconfigured
 * @device_notifier: used to notify character device wait queues about the GPIO
 *                   device being unregistered
 * @sem: protects the structure from a NULL-pointer dereference of @chip by
 *       user-space operations when the device gets unregistered during
 *       a hot-unplug event
 * @pin_ranges: range of pins served by the GPIO driver
 *
 * This state container holds most of the runtime variable data
 * for a GPIO device and can hold references and live on after the
 * GPIO chip has been removed, if it is still being used from
 * userspace.
 */
struct gpio_device {
	struct device		dev;
	struct cdev		chrdev;
	int			id;
	struct device		*mockdev;
	struct module		*owner;
	struct gpio_chip	*chip;
	struct gpio_desc	*descs;
	int			base;
	u16			ngpio;
	const char		*label;
	void			*data;
	struct list_head        list;
	struct blocking_notifier_head line_state_notifier;
	struct blocking_notifier_head device_notifier;
	struct rw_semaphore	sem;

#ifdef CONFIG_PINCTRL
	/*
	 * If CONFIG_PINCTRL is enabled, then gpio controllers can optionally
	 * describe the actual pin range which they serve in an SoC. This
	 * information would be used by pinctrl subsystem to configure
	 * corresponding pins for gpio usage.
	 */
	struct list_head pin_ranges;
#endif
};

static inline struct gpio_device *to_gpio_device(struct device *dev)
{
	return container_of(dev, struct gpio_device, dev);
}

static inline struct gpio_device *gpio_device_get(struct gpio_device *gdev)
{
	return to_gpio_device(get_device(&gdev->dev));
}

static inline void gpio_device_put(struct gpio_device *gdev)
{
	put_device(&gdev->dev);
}

/* gpio suffixes used for ACPI and device tree lookup */
static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" };

/**
 * struct gpio_array - Opaque descriptor for a structure of GPIO array attributes
 *
 * @desc:		Array of pointers to the GPIO descriptors
 * @size:		Number of elements in desc
 * @chip:		Parent GPIO chip
 * @get_mask:		Get mask used in fastpath
 * @set_mask:		Set mask used in fastpath
 * @invert_mask:	Invert mask used in fastpath
 *
 * This structure is attached to struct gpiod_descs obtained from
 * gpiod_get_array() and can be passed back to get/set array functions in order
 * to activate fast processing path if applicable.
 */
struct gpio_array {
	struct gpio_desc	**desc;
	unsigned int		size;
	struct gpio_chip	*chip;
	unsigned long		*get_mask;
	unsigned long		*set_mask;
	unsigned long		invert_mask[];
};

struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, unsigned int hwnum);

#define for_each_gpio_desc(gc, desc)					\
	for (unsigned int __i = 0;					\
	     __i < gc->ngpio && (desc = gpiochip_get_desc(gc, __i));	\
	     __i++)							\

#define for_each_gpio_desc_with_flag(gc, desc, flag)			\
	for_each_gpio_desc(gc, desc)					\
		if (!test_bit(flag, &desc->flags)) {} else

int gpiod_get_array_value_complex(bool raw, bool can_sleep,
				  unsigned int array_size,
				  struct gpio_desc **desc_array,
				  struct gpio_array *array_info,
				  unsigned long *value_bitmap);
int gpiod_set_array_value_complex(bool raw, bool can_sleep,
				  unsigned int array_size,
				  struct gpio_desc **desc_array,
				  struct gpio_array *array_info,
				  unsigned long *value_bitmap);

extern spinlock_t gpio_lock;
extern struct list_head gpio_devices;

void gpiod_line_state_notify(struct gpio_desc *desc, unsigned long action);

/**
 * struct gpio_desc - Opaque descriptor for a GPIO
 *
 * @gdev:		Pointer to the parent GPIO device
 * @flags:		Binary descriptor flags
 * @label:		Name of the consumer
 * @name:		Line name
 * @hog:		Pointer to the device node that hogs this line (if any)
 * @debounce_period_us:	Debounce period in microseconds
 *
 * These are obtained using gpiod_get() and are preferable to the old
 * integer-based handles.
 *
 * Contrary to integers, a pointer to a &struct gpio_desc is guaranteed to be
 * valid until the GPIO is released.
 */
struct gpio_desc {
	struct gpio_device	*gdev;
	unsigned long		flags;
/* flag symbols are bit numbers */
#define FLAG_REQUESTED	0
#define FLAG_IS_OUT	1
#define FLAG_EXPORT	2	/* protected by sysfs_lock */
#define FLAG_SYSFS	3	/* exported via /sys/class/gpio/control */
#define FLAG_ACTIVE_LOW	6	/* value has active low */
#define FLAG_OPEN_DRAIN	7	/* Gpio is open drain type */
#define FLAG_OPEN_SOURCE 8	/* Gpio is open source type */
#define FLAG_USED_AS_IRQ 9	/* GPIO is connected to an IRQ */
#define FLAG_IRQ_IS_ENABLED 10	/* GPIO is connected to an enabled IRQ */
#define FLAG_IS_HOGGED	11	/* GPIO is hogged */
#define FLAG_TRANSITORY 12	/* GPIO may lose value in sleep or reset */
#define FLAG_PULL_UP    13	/* GPIO has pull up enabled */
#define FLAG_PULL_DOWN  14	/* GPIO has pull down enabled */
#define FLAG_BIAS_DISABLE    15	/* GPIO has pull disabled */
#define FLAG_EDGE_RISING     16	/* GPIO CDEV detects rising edge events */
#define FLAG_EDGE_FALLING    17	/* GPIO CDEV detects falling edge events */
#define FLAG_EVENT_CLOCK_REALTIME	18 /* GPIO CDEV reports REALTIME timestamps in events */
#define FLAG_EVENT_CLOCK_HTE		19 /* GPIO CDEV reports hardware timestamps in events */

	/* Connection label */
	const char		*label;
	/* Name of the GPIO */
	const char		*name;
#ifdef CONFIG_OF_DYNAMIC
	struct device_node	*hog;
#endif
#ifdef CONFIG_GPIO_CDEV
	/* debounce period in microseconds */
	unsigned int		debounce_period_us;
#endif
};

#define gpiod_not_found(desc)		(IS_ERR(desc) && PTR_ERR(desc) == -ENOENT)

int gpiod_request(struct gpio_desc *desc, const char *label);
void gpiod_free(struct gpio_desc *desc);

static inline int gpiod_request_user(struct gpio_desc *desc, const char *label)
{
	int ret;

	ret = gpiod_request(desc, label);
	if (ret == -EPROBE_DEFER)
		ret = -ENODEV;

	return ret;
}

int gpiod_configure_flags(struct gpio_desc *desc, const char *con_id,
		unsigned long lflags, enum gpiod_flags dflags);
int gpio_set_debounce_timeout(struct gpio_desc *desc, unsigned int debounce);
int gpiod_hog(struct gpio_desc *desc, const char *name,
		unsigned long lflags, enum gpiod_flags dflags);
int gpiochip_get_ngpios(struct gpio_chip *gc, struct device *dev);

/*
 * Return the GPIO number of the passed descriptor relative to its chip
 */
static inline int gpio_chip_hwgpio(const struct gpio_desc *desc)
{
	return desc - &desc->gdev->descs[0];
}

/* With descriptor prefix */

#define gpiod_emerg(desc, fmt, ...)					       \
	pr_emerg("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",\
		 ##__VA_ARGS__)
#define gpiod_crit(desc, fmt, ...)					       \
	pr_crit("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
		 ##__VA_ARGS__)
#define gpiod_err(desc, fmt, ...)					       \
	pr_err("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",  \
		 ##__VA_ARGS__)
#define gpiod_warn(desc, fmt, ...)					       \
	pr_warn("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
		 ##__VA_ARGS__)
#define gpiod_info(desc, fmt, ...)					       \
	pr_info("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
		 ##__VA_ARGS__)
#define gpiod_dbg(desc, fmt, ...)					       \
	pr_debug("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",\
		 ##__VA_ARGS__)

/* With chip prefix */

#define chip_emerg(gc, fmt, ...)					\
	dev_emerg(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
#define chip_crit(gc, fmt, ...)					\
	dev_crit(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
#define chip_err(gc, fmt, ...)					\
	dev_err(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
#define chip_warn(gc, fmt, ...)					\
	dev_warn(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
#define chip_info(gc, fmt, ...)					\
	dev_info(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
#define chip_dbg(gc, fmt, ...)					\
	dev_dbg(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)

#endif /* GPIOLIB_H */
Commit	Line	Data
dae5f0af	1	/* SPDX-License-Identifier: GPL-2.0 */
664e3e5a MW	2	/*
	3	* Internal GPIO functions.
	4	*
	5	* Copyright (C) 2013, Intel Corporation
	6	* Author: Mika Westerberg <mika.westerberg@linux.intel.com>
664e3e5a MW	7	*/
	8
	9	#ifndef GPIOLIB_H
	10	#define GPIOLIB_H
	11
0f93a345	12	#include <linux/cdev.h>
5ccff852	13	#include <linux/device.h>
0f93a345 BG	14	#include <linux/err.h>
	15	#include <linux/gpio/consumer.h> /* for enum gpiod_flags */
	16	#include <linux/gpio/driver.h>
ff2b1359	17	#include <linux/module.h>
e2051394	18	#include <linux/notifier.h>
bdbbae24	19	#include <linux/rwsem.h>
5ccff852	20
ddd8891e GU	21	#define GPIOCHIP_NAME "gpiochip"
ddd8891e GU	22
ff2b1359 LW	23	/**
ff2b1359 LW	24	* struct gpio_device - internal state container for GPIO devices
ff2b1359	25	* @dev: the GPIO device struct
3c702e99	26	* @chrdev: character device for the GPIO device
3b7c7478	27	* @id: numerical ID number for the GPIO chip
afbc4f31 LW	28	* @mockdev: class device used by the deprecated sysfs interface (may be
afbc4f31 LW	29	* NULL)
ff2b1359 LW	30	* @owner: helps prevent removal of modules exporting active GPIOs
	31	* @chip: pointer to the corresponding gpiochip, holding static
	32	* data for this device
1c3cdb18	33	* @descs: array of ngpio descriptors.
fdeb8e15 LW	34	* @ngpio: the number of GPIO lines on this GPIO device, equal to the size
	35	* of the @descs array.
	36	* @base: GPIO base in the DEPRECATED global Linux GPIO numberspace, assigned
	37	* at device creation time.
df4878e9 LW	38	* @label: a descriptive name for the GPIO device, such as the part number
df4878e9 LW	39	* or name of the IP component in a System on Chip.
43c54eca	40	* @data: per-instance data assigned by the driver
ff2b1359	41	* @list: links gpio_device:s together for traversal
17a7ca35 BG	42	* @line_state_notifier: used to notify subscribers about lines being
17a7ca35 BG	43	* requested, released or reconfigured
a067419b BG	44	* @device_notifier: used to notify character device wait queues about the GPIO
a067419b BG	45	* device being unregistered
bdbbae24 BG	46	* @sem: protects the structure from a NULL-pointer dereference of @chip by
	47	* user-space operations when the device gets unregistered during
	48	* a hot-unplug event
4398693a	49	* @pin_ranges: range of pins served by the GPIO driver
ff2b1359 LW	50	*
	51	* This state container holds most of the runtime variable data
	52	* for a GPIO device and can hold references and live on after the
	53	* GPIO chip has been removed, if it is still being used from
	54	* userspace.
	55	*/
	56	struct gpio_device {
ff2b1359	57	struct device dev;
3c702e99	58	struct cdev chrdev;
3b7c7478	59	int id;
afbc4f31	60	struct device *mockdev;
ff2b1359 LW	61	struct module *owner;
ff2b1359 LW	62	struct gpio_chip *chip;
1c3cdb18	63	struct gpio_desc *descs;
fdeb8e15 LW	64	int base;
fdeb8e15 LW	65	u16 ngpio;
3b469b0a	66	const char *label;
43c54eca	67	void *data;
ff2b1359	68	struct list_head list;
17a7ca35	69	struct blocking_notifier_head line_state_notifier;
a067419b	70	struct blocking_notifier_head device_notifier;
bdbbae24	71	struct rw_semaphore sem;
20ec3e39 LW	72
	73	#ifdef CONFIG_PINCTRL
	74	/*
	75	* If CONFIG_PINCTRL is enabled, then gpio controllers can optionally
	76	* describe the actual pin range which they serve in an SoC. This
	77	* information would be used by pinctrl subsystem to configure
	78	* corresponding pins for gpio usage.
	79	*/
	80	struct list_head pin_ranges;
	81	#endif
ff2b1359 LW	82	};
ff2b1359 LW	83
3b7c7478 AS	84	static inline struct gpio_device to_gpio_device(struct device dev)
	85	{
	86	return container_of(dev, struct gpio_device, dev);
	87	}
	88
dc0989e3 AS	89	static inline struct gpio_device gpio_device_get(struct gpio_device gdev)
	90	{
	91	return to_gpio_device(get_device(&gdev->dev));
	92	}
	93
	94	static inline void gpio_device_put(struct gpio_device *gdev)
	95	{
	96	put_device(&gdev->dev);
	97	}
	98
7f2e553a	99	/* gpio suffixes used for ACPI and device tree lookup */
b23ec599	100	static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" };
7f2e553a	101
4398693a BG	102	/**
	103	* struct gpio_array - Opaque descriptor for a structure of GPIO array attributes
	104	*
	105	* @desc: Array of pointers to the GPIO descriptors
	106	* @size: Number of elements in desc
	107	* @chip: Parent GPIO chip
	108	* @get_mask: Get mask used in fastpath
	109	* @set_mask: Set mask used in fastpath
	110	* @invert_mask: Invert mask used in fastpath
	111	*
	112	* This structure is attached to struct gpiod_descs obtained from
	113	* gpiod_get_array() and can be passed back to get/set array functions in order
	114	* to activate fast processing path if applicable.
	115	*/
bf9346f5 JK	116	struct gpio_array {
	117	struct gpio_desc **desc;
	118	unsigned int size;
	119	struct gpio_chip *chip;
	120	unsigned long *get_mask;
	121	unsigned long *set_mask;
	122	unsigned long invert_mask[];
	123	};
	124
a5e93436	125	struct gpio_desc gpiochip_get_desc(struct gpio_chip gc, unsigned int hwnum);
80c78fbe	126
66f46e37	127	#define for_each_gpio_desc(gc, desc) \
57017edd AS	128	for (unsigned int __i = 0; \
	129	__i < gc->ngpio && (desc = gpiochip_get_desc(gc, __i)); \
	130	__i++) \
66f46e37 AS	131
	132	#define for_each_gpio_desc_with_flag(gc, desc, flag) \
	133	for_each_gpio_desc(gc, desc) \
80c78fbe AS	134	if (!test_bit(flag, &desc->flags)) {} else
80c78fbe AS	135
eec1d566 LW	136	int gpiod_get_array_value_complex(bool raw, bool can_sleep,
	137	unsigned int array_size,
	138	struct gpio_desc **desc_array,
77588c14	139	struct gpio_array *array_info,
b9762beb	140	unsigned long *value_bitmap);
3027743f	141	int gpiod_set_array_value_complex(bool raw, bool can_sleep,
3c940660 GU	142	unsigned int array_size,
	143	struct gpio_desc **desc_array,
	144	struct gpio_array *array_info,
	145	unsigned long *value_bitmap);
1bd6b601	146
f0b40863	147	extern spinlock_t gpio_lock;
ff2b1359	148	extern struct list_head gpio_devices;
0eb4c6c2	149
9ce4ed5b	150	void gpiod_line_state_notify(struct gpio_desc *desc, unsigned long action);
4398693a BG	151
	152	/**
	153	* struct gpio_desc - Opaque descriptor for a GPIO
	154	*
	155	* @gdev: Pointer to the parent GPIO device
	156	* @flags: Binary descriptor flags
	157	* @label: Name of the consumer
	158	* @name: Line name
	159	* @hog: Pointer to the device node that hogs this line (if any)
	160	* @debounce_period_us: Debounce period in microseconds
	161	*
	162	* These are obtained using gpiod_get() and are preferable to the old
	163	* integer-based handles.
	164	*
	165	* Contrary to integers, a pointer to a &struct gpio_desc is guaranteed to be
	166	* valid until the GPIO is released.
	167	*/
0eb4c6c2	168	struct gpio_desc {
fdeb8e15	169	struct gpio_device *gdev;
0eb4c6c2 AC	170	unsigned long flags;
	171	/* flag symbols are bit numbers */
	172	#define FLAG_REQUESTED 0
	173	#define FLAG_IS_OUT 1
	174	#define FLAG_EXPORT 2 /* protected by sysfs_lock */
	175	#define FLAG_SYSFS 3 /* exported via /sys/class/gpio/control */
0eb4c6c2 AC	176	#define FLAG_ACTIVE_LOW 6 /* value has active low */
	177	#define FLAG_OPEN_DRAIN 7 /* Gpio is open drain type */
	178	#define FLAG_OPEN_SOURCE 8 /* Gpio is open source type */
	179	#define FLAG_USED_AS_IRQ 9 /* GPIO is connected to an IRQ */
4e9439dd	180	#define FLAG_IRQ_IS_ENABLED 10 /* GPIO is connected to an enabled IRQ */
f625d460	181	#define FLAG_IS_HOGGED 11 /* GPIO is hogged */
e10f72bf	182	#define FLAG_TRANSITORY 12 /* GPIO may lose value in sleep or reset */
d449991c TP	183	#define FLAG_PULL_UP 13 /* GPIO has pull up enabled */
d449991c TP	184	#define FLAG_PULL_DOWN 14 /* GPIO has pull down enabled */
2148ad77	185	#define FLAG_BIAS_DISABLE 15 /* GPIO has pull disabled */
73e03419 KG	186	#define FLAG_EDGE_RISING 16 /* GPIO CDEV detects rising edge events */
73e03419 KG	187	#define FLAG_EDGE_FALLING 17 /* GPIO CDEV detects falling edge events */
26d060e4	188	#define FLAG_EVENT_CLOCK_REALTIME 18 /* GPIO CDEV reports REALTIME timestamps in events */
42112dd7	189	#define FLAG_EVENT_CLOCK_HTE 19 /* GPIO CDEV reports hardware timestamps in events */
0eb4c6c2	190
c0017ed7	191	/* Connection label */
0eb4c6c2	192	const char *label;
c0017ed7 MP	193	/* Name of the GPIO */
c0017ed7 MP	194	const char *name;
63636d95 GU	195	#ifdef CONFIG_OF_DYNAMIC
	196	struct device_node *hog;
	197	#endif
65cff704 KG	198	#ifdef CONFIG_GPIO_CDEV
	199	/* debounce period in microseconds */
	200	unsigned int debounce_period_us;
	201	#endif
0eb4c6c2 AC	202	};
0eb4c6c2 AC	203
7b58696d AS	204	#define gpiod_not_found(desc) (IS_ERR(desc) && PTR_ERR(desc) == -ENOENT)
7b58696d AS	205
0eb4c6c2 AC	206	int gpiod_request(struct gpio_desc desc, const char label);
0eb4c6c2 AC	207	void gpiod_free(struct gpio_desc *desc);
95a4eed7 AS	208
	209	static inline int gpiod_request_user(struct gpio_desc desc, const char label)
	210	{
	211	int ret;
	212
	213	ret = gpiod_request(desc, label);
	214	if (ret == -EPROBE_DEFER)
	215	ret = -ENODEV;
	216
	217	return ret;
	218	}
	219
c29fd9eb AS	220	int gpiod_configure_flags(struct gpio_desc desc, const char con_id,
c29fd9eb AS	221	unsigned long lflags, enum gpiod_flags dflags);
f725edd8	222	int gpio_set_debounce_timeout(struct gpio_desc *desc, unsigned int debounce);
f625d460 BP	223	int gpiod_hog(struct gpio_desc desc, const char name,
f625d460 BP	224	unsigned long lflags, enum gpiod_flags dflags);
55b2395e	225	int gpiochip_get_ngpios(struct gpio_chip gc, struct device dev);
0eb4c6c2 AC	226
	227	/*
	228	* Return the GPIO number of the passed descriptor relative to its chip
	229	*/
4a5c886e	230	static inline int gpio_chip_hwgpio(const struct gpio_desc *desc)
0eb4c6c2	231	{
fdeb8e15	232	return desc - &desc->gdev->descs[0];
0eb4c6c2 AC	233	}
	234
	235	/* With descriptor prefix */
	236
	237	#define gpiod_emerg(desc, fmt, ...) \
	238	pr_emerg("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",\
	239	##__VA_ARGS__)
	240	#define gpiod_crit(desc, fmt, ...) \
	241	pr_crit("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
	242	##__VA_ARGS__)
	243	#define gpiod_err(desc, fmt, ...) \
	244	pr_err("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
	245	##__VA_ARGS__)
	246	#define gpiod_warn(desc, fmt, ...) \
	247	pr_warn("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
	248	##__VA_ARGS__)
	249	#define gpiod_info(desc, fmt, ...) \
	250	pr_info("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
	251	##__VA_ARGS__)
	252	#define gpiod_dbg(desc, fmt, ...) \
	253	pr_debug("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",\
	254	##__VA_ARGS__)
	255
	256	/* With chip prefix */
	257
a5e93436 GU	258	#define chip_emerg(gc, fmt, ...) \
	259	dev_emerg(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	260	#define chip_crit(gc, fmt, ...) \
	261	dev_crit(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	262	#define chip_err(gc, fmt, ...) \
	263	dev_err(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	264	#define chip_warn(gc, fmt, ...) \
	265	dev_warn(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	266	#define chip_info(gc, fmt, ...) \
	267	dev_info(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	268	#define chip_dbg(gc, fmt, ...) \
	269	dev_dbg(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
0eb4c6c2	270
664e3e5a	271	#endif /* GPIOLIB_H */