[linux-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/gpio/driver.h>
#include <linux/gpio/consumer.h> /* for enum gpiod_flags */
#include <linux/err.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/cdev.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
 * @notifier: used to notify subscribers about lines being requested, released
 *            or reconfigured
 * @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 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;


/**
 * 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);

/*
 * 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
ff2b1359	12	#include <linux/gpio/driver.h>
63f2dc0a	13	#include <linux/gpio/consumer.h> /* for enum gpiod_flags */
5ccff852 MW	14	#include <linux/err.h>
5ccff852 MW	15	#include <linux/device.h>
ff2b1359 LW	16	#include <linux/module.h>
ff2b1359 LW	17	#include <linux/cdev.h>
bdbbae24	18	#include <linux/rwsem.h>
5ccff852	19
ddd8891e GU	20	#define GPIOCHIP_NAME "gpiochip"
ddd8891e GU	21
ff2b1359 LW	22	/**
ff2b1359 LW	23	* struct gpio_device - internal state container for GPIO devices
ff2b1359	24	* @dev: the GPIO device struct
3c702e99	25	* @chrdev: character device for the GPIO device
3b7c7478	26	* @id: numerical ID number for the GPIO chip
afbc4f31 LW	27	* @mockdev: class device used by the deprecated sysfs interface (may be
afbc4f31 LW	28	* NULL)
ff2b1359 LW	29	* @owner: helps prevent removal of modules exporting active GPIOs
	30	* @chip: pointer to the corresponding gpiochip, holding static
	31	* data for this device
1c3cdb18	32	* @descs: array of ngpio descriptors.
fdeb8e15 LW	33	* @ngpio: the number of GPIO lines on this GPIO device, equal to the size
	34	* of the @descs array.
	35	* @base: GPIO base in the DEPRECATED global Linux GPIO numberspace, assigned
	36	* at device creation time.
df4878e9 LW	37	* @label: a descriptive name for the GPIO device, such as the part number
df4878e9 LW	38	* or name of the IP component in a System on Chip.
43c54eca	39	* @data: per-instance data assigned by the driver
ff2b1359	40	* @list: links gpio_device:s together for traversal
4398693a BG	41	* @notifier: used to notify subscribers about lines being requested, released
4398693a BG	42	* or reconfigured
bdbbae24 BG	43	* @sem: protects the structure from a NULL-pointer dereference of @chip by
	44	* user-space operations when the device gets unregistered during
	45	* a hot-unplug event
4398693a	46	* @pin_ranges: range of pins served by the GPIO driver
ff2b1359 LW	47	*
	48	* This state container holds most of the runtime variable data
	49	* for a GPIO device and can hold references and live on after the
	50	* GPIO chip has been removed, if it is still being used from
	51	* userspace.
	52	*/
	53	struct gpio_device {
ff2b1359	54	struct device dev;
3c702e99	55	struct cdev chrdev;
3b7c7478	56	int id;
afbc4f31	57	struct device *mockdev;
ff2b1359 LW	58	struct module *owner;
ff2b1359 LW	59	struct gpio_chip *chip;
1c3cdb18	60	struct gpio_desc *descs;
fdeb8e15 LW	61	int base;
fdeb8e15 LW	62	u16 ngpio;
3b469b0a	63	const char *label;
43c54eca	64	void *data;
ff2b1359	65	struct list_head list;
6accc376	66	struct blocking_notifier_head notifier;
bdbbae24	67	struct rw_semaphore sem;
20ec3e39 LW	68
	69	#ifdef CONFIG_PINCTRL
	70	/*
	71	* If CONFIG_PINCTRL is enabled, then gpio controllers can optionally
	72	* describe the actual pin range which they serve in an SoC. This
	73	* information would be used by pinctrl subsystem to configure
	74	* corresponding pins for gpio usage.
	75	*/
	76	struct list_head pin_ranges;
	77	#endif
ff2b1359 LW	78	};
ff2b1359 LW	79
3b7c7478 AS	80	static inline struct gpio_device to_gpio_device(struct device dev)
	81	{
	82	return container_of(dev, struct gpio_device, dev);
	83	}
	84
dc0989e3 AS	85	static inline struct gpio_device gpio_device_get(struct gpio_device gdev)
	86	{
	87	return to_gpio_device(get_device(&gdev->dev));
	88	}
	89
	90	static inline void gpio_device_put(struct gpio_device *gdev)
	91	{
	92	put_device(&gdev->dev);
	93	}
	94
7f2e553a	95	/* gpio suffixes used for ACPI and device tree lookup */
b23ec599	96	static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" };
7f2e553a	97
4398693a BG	98	/**
	99	* struct gpio_array - Opaque descriptor for a structure of GPIO array attributes
	100	*
	101	* @desc: Array of pointers to the GPIO descriptors
	102	* @size: Number of elements in desc
	103	* @chip: Parent GPIO chip
	104	* @get_mask: Get mask used in fastpath
	105	* @set_mask: Set mask used in fastpath
	106	* @invert_mask: Invert mask used in fastpath
	107	*
	108	* This structure is attached to struct gpiod_descs obtained from
	109	* gpiod_get_array() and can be passed back to get/set array functions in order
	110	* to activate fast processing path if applicable.
	111	*/
bf9346f5 JK	112	struct gpio_array {
	113	struct gpio_desc **desc;
	114	unsigned int size;
	115	struct gpio_chip *chip;
	116	unsigned long *get_mask;
	117	unsigned long *set_mask;
	118	unsigned long invert_mask[];
	119	};
	120
a5e93436	121	struct gpio_desc gpiochip_get_desc(struct gpio_chip gc, unsigned int hwnum);
80c78fbe	122
66f46e37	123	#define for_each_gpio_desc(gc, desc) \
57017edd AS	124	for (unsigned int __i = 0; \
	125	__i < gc->ngpio && (desc = gpiochip_get_desc(gc, __i)); \
	126	__i++) \
66f46e37 AS	127
	128	#define for_each_gpio_desc_with_flag(gc, desc, flag) \
	129	for_each_gpio_desc(gc, desc) \
80c78fbe AS	130	if (!test_bit(flag, &desc->flags)) {} else
80c78fbe AS	131
eec1d566 LW	132	int gpiod_get_array_value_complex(bool raw, bool can_sleep,
	133	unsigned int array_size,
	134	struct gpio_desc **desc_array,
77588c14	135	struct gpio_array *array_info,
b9762beb	136	unsigned long *value_bitmap);
3027743f	137	int gpiod_set_array_value_complex(bool raw, bool can_sleep,
3c940660 GU	138	unsigned int array_size,
	139	struct gpio_desc **desc_array,
	140	struct gpio_array *array_info,
	141	unsigned long *value_bitmap);
1bd6b601	142
f0b40863	143	extern spinlock_t gpio_lock;
ff2b1359	144	extern struct list_head gpio_devices;
0eb4c6c2	145
4398693a BG	146
	147	/**
	148	* struct gpio_desc - Opaque descriptor for a GPIO
	149	*
	150	* @gdev: Pointer to the parent GPIO device
	151	* @flags: Binary descriptor flags
	152	* @label: Name of the consumer
	153	* @name: Line name
	154	* @hog: Pointer to the device node that hogs this line (if any)
	155	* @debounce_period_us: Debounce period in microseconds
	156	*
	157	* These are obtained using gpiod_get() and are preferable to the old
	158	* integer-based handles.
	159	*
	160	* Contrary to integers, a pointer to a &struct gpio_desc is guaranteed to be
	161	* valid until the GPIO is released.
	162	*/
0eb4c6c2	163	struct gpio_desc {
fdeb8e15	164	struct gpio_device *gdev;
0eb4c6c2 AC	165	unsigned long flags;
	166	/* flag symbols are bit numbers */
	167	#define FLAG_REQUESTED 0
	168	#define FLAG_IS_OUT 1
	169	#define FLAG_EXPORT 2 /* protected by sysfs_lock */
	170	#define FLAG_SYSFS 3 /* exported via /sys/class/gpio/control */
0eb4c6c2 AC	171	#define FLAG_ACTIVE_LOW 6 /* value has active low */
	172	#define FLAG_OPEN_DRAIN 7 /* Gpio is open drain type */
	173	#define FLAG_OPEN_SOURCE 8 /* Gpio is open source type */
	174	#define FLAG_USED_AS_IRQ 9 /* GPIO is connected to an IRQ */
4e9439dd	175	#define FLAG_IRQ_IS_ENABLED 10 /* GPIO is connected to an enabled IRQ */
f625d460	176	#define FLAG_IS_HOGGED 11 /* GPIO is hogged */
e10f72bf	177	#define FLAG_TRANSITORY 12 /* GPIO may lose value in sleep or reset */
d449991c TP	178	#define FLAG_PULL_UP 13 /* GPIO has pull up enabled */
d449991c TP	179	#define FLAG_PULL_DOWN 14 /* GPIO has pull down enabled */
2148ad77	180	#define FLAG_BIAS_DISABLE 15 /* GPIO has pull disabled */
73e03419 KG	181	#define FLAG_EDGE_RISING 16 /* GPIO CDEV detects rising edge events */
73e03419 KG	182	#define FLAG_EDGE_FALLING 17 /* GPIO CDEV detects falling edge events */
26d060e4	183	#define FLAG_EVENT_CLOCK_REALTIME 18 /* GPIO CDEV reports REALTIME timestamps in events */
42112dd7	184	#define FLAG_EVENT_CLOCK_HTE 19 /* GPIO CDEV reports hardware timestamps in events */
0eb4c6c2	185
c0017ed7	186	/* Connection label */
0eb4c6c2	187	const char *label;
c0017ed7 MP	188	/* Name of the GPIO */
c0017ed7 MP	189	const char *name;
63636d95 GU	190	#ifdef CONFIG_OF_DYNAMIC
	191	struct device_node *hog;
	192	#endif
65cff704 KG	193	#ifdef CONFIG_GPIO_CDEV
	194	/* debounce period in microseconds */
	195	unsigned int debounce_period_us;
	196	#endif
0eb4c6c2 AC	197	};
0eb4c6c2 AC	198
7b58696d AS	199	#define gpiod_not_found(desc) (IS_ERR(desc) && PTR_ERR(desc) == -ENOENT)
7b58696d AS	200
0eb4c6c2 AC	201	int gpiod_request(struct gpio_desc desc, const char label);
0eb4c6c2 AC	202	void gpiod_free(struct gpio_desc *desc);
95a4eed7 AS	203
	204	static inline int gpiod_request_user(struct gpio_desc desc, const char label)
	205	{
	206	int ret;
	207
	208	ret = gpiod_request(desc, label);
	209	if (ret == -EPROBE_DEFER)
	210	ret = -ENODEV;
	211
	212	return ret;
	213	}
	214
c29fd9eb AS	215	int gpiod_configure_flags(struct gpio_desc desc, const char con_id,
c29fd9eb AS	216	unsigned long lflags, enum gpiod_flags dflags);
f725edd8	217	int gpio_set_debounce_timeout(struct gpio_desc *desc, unsigned int debounce);
f625d460 BP	218	int gpiod_hog(struct gpio_desc desc, const char name,
f625d460 BP	219	unsigned long lflags, enum gpiod_flags dflags);
0eb4c6c2 AC	220
	221	/*
	222	* Return the GPIO number of the passed descriptor relative to its chip
	223	*/
4a5c886e	224	static inline int gpio_chip_hwgpio(const struct gpio_desc *desc)
0eb4c6c2	225	{
fdeb8e15	226	return desc - &desc->gdev->descs[0];
0eb4c6c2 AC	227	}
	228
	229	/* With descriptor prefix */
	230
	231	#define gpiod_emerg(desc, fmt, ...) \
	232	pr_emerg("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",\
	233	##__VA_ARGS__)
	234	#define gpiod_crit(desc, fmt, ...) \
	235	pr_crit("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
	236	##__VA_ARGS__)
	237	#define gpiod_err(desc, fmt, ...) \
	238	pr_err("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
	239	##__VA_ARGS__)
	240	#define gpiod_warn(desc, fmt, ...) \
	241	pr_warn("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
	242	##__VA_ARGS__)
	243	#define gpiod_info(desc, fmt, ...) \
	244	pr_info("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
	245	##__VA_ARGS__)
	246	#define gpiod_dbg(desc, fmt, ...) \
	247	pr_debug("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",\
	248	##__VA_ARGS__)
	249
	250	/* With chip prefix */
	251
a5e93436 GU	252	#define chip_emerg(gc, fmt, ...) \
	253	dev_emerg(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	254	#define chip_crit(gc, fmt, ...) \
	255	dev_crit(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	256	#define chip_err(gc, fmt, ...) \
	257	dev_err(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	258	#define chip_warn(gc, fmt, ...) \
	259	dev_warn(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	260	#define chip_info(gc, fmt, ...) \
	261	dev_info(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
	262	#define chip_dbg(gc, fmt, ...) \
	263	dev_dbg(&gc->gpiodev->dev, "(%s): " fmt, gc->label, ##__VA_ARGS__)
0eb4c6c2	264
664e3e5a	265	#endif /* GPIOLIB_H */