[deliverable/linux.git] / drivers / misc / tifm_core.c

/*
 *  tifm_core.c - TI FlashMedia driver
 *
 *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

#include <linux/tifm.h>
#include <linux/init.h>
#include <linux/idr.h>

#define DRIVER_NAME "tifm_core"
#define DRIVER_VERSION "0.8"

static struct workqueue_struct *workqueue;
static DEFINE_IDR(tifm_adapter_idr);
static DEFINE_SPINLOCK(tifm_adapter_lock);

static const char *tifm_media_type_name(unsigned char type, unsigned char nt)
{
	const char *card_type_name[3][3] = {
		{ "SmartMedia/xD", "MemoryStick", "MMC/SD" },
		{ "XD", "MS", "SD"},
		{ "xd", "ms", "sd"}
	};

	if (nt > 2 || type < 1 || type > 3)
		return NULL;
	return card_type_name[nt][type - 1];
}

static int tifm_dev_match(struct tifm_dev *sock, struct tifm_device_id *id)
{
	if (sock->type == id->type)
		return 1;
	return 0;
}

static int tifm_bus_match(struct device *dev, struct device_driver *drv)
{
	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	struct tifm_driver *fm_drv = container_of(drv, struct tifm_driver,
						  driver);
	struct tifm_device_id *ids = fm_drv->id_table;

	if (ids) {
		while (ids->type) {
			if (tifm_dev_match(sock, ids))
				return 1;
			++ids;
		}
	}
	return 0;
}

static int tifm_uevent(struct device *dev, struct kobj_uevent_env *env)
{
	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);

	if (add_uevent_var(env, "TIFM_CARD_TYPE=%s", tifm_media_type_name(sock->type, 1)))
		return -ENOMEM;

	return 0;
}

static int tifm_device_probe(struct device *dev)
{
	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
					       driver);
	int rc = -ENODEV;

	get_device(dev);
	if (dev->driver && drv->probe) {
		rc = drv->probe(sock);
		if (!rc)
			return 0;
	}
	put_device(dev);
	return rc;
}

static void tifm_dummy_event(struct tifm_dev *sock)
{
	return;
}

static int tifm_device_remove(struct device *dev)
{
	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
					       driver);

	if (dev->driver && drv->remove) {
		sock->card_event = tifm_dummy_event;
		sock->data_event = tifm_dummy_event;
		drv->remove(sock);
		sock->dev.driver = NULL;
	}

	put_device(dev);
	return 0;
}

#ifdef CONFIG_PM

static int tifm_device_suspend(struct device *dev, pm_message_t state)
{
	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
					       driver);

	if (dev->driver && drv->suspend)
		return drv->suspend(sock, state);
	return 0;
}

static int tifm_device_resume(struct device *dev)
{
	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
					       driver);

	if (dev->driver && drv->resume)
		return drv->resume(sock);
	return 0;
}

#else

#define tifm_device_suspend NULL
#define tifm_device_resume NULL

#endif /* CONFIG_PM */

static ssize_t type_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	return sprintf(buf, "%x", sock->type);
}

static struct device_attribute tifm_dev_attrs[] = {
	__ATTR(type, S_IRUGO, type_show, NULL),
	__ATTR_NULL
};

static struct bus_type tifm_bus_type = {
	.name      = "tifm",
	.dev_attrs = tifm_dev_attrs,
	.match     = tifm_bus_match,
	.uevent    = tifm_uevent,
	.probe     = tifm_device_probe,
	.remove    = tifm_device_remove,
	.suspend   = tifm_device_suspend,
	.resume    = tifm_device_resume
};

static void tifm_free(struct device *dev)
{
	struct tifm_adapter *fm = container_of(dev, struct tifm_adapter, dev);

	kfree(fm);
}

static struct class tifm_adapter_class = {
	.name    = "tifm_adapter",
	.dev_release = tifm_free
};

struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
					struct device *dev)
{
	struct tifm_adapter *fm;

	fm = kzalloc(sizeof(struct tifm_adapter)
		     + sizeof(struct tifm_dev*) * num_sockets, GFP_KERNEL);
	if (fm) {
		fm->dev.class = &tifm_adapter_class;
		fm->dev.parent = dev;
		device_initialize(&fm->dev);
		spin_lock_init(&fm->lock);
		fm->num_sockets = num_sockets;
	}
	return fm;
}
EXPORT_SYMBOL(tifm_alloc_adapter);

int tifm_add_adapter(struct tifm_adapter *fm)
{
	int rc;

	if (!idr_pre_get(&tifm_adapter_idr, GFP_KERNEL))
		return -ENOMEM;

	spin_lock(&tifm_adapter_lock);
	rc = idr_get_new(&tifm_adapter_idr, fm, &fm->id);
	spin_unlock(&tifm_adapter_lock);
	if (rc)
		return rc;

	dev_set_name(&fm->dev, "tifm%u", fm->id);
	rc = device_add(&fm->dev);
	if (rc) {
		spin_lock(&tifm_adapter_lock);
		idr_remove(&tifm_adapter_idr, fm->id);
		spin_unlock(&tifm_adapter_lock);
	}

	return rc;
}
EXPORT_SYMBOL(tifm_add_adapter);

void tifm_remove_adapter(struct tifm_adapter *fm)
{
	unsigned int cnt;

	flush_workqueue(workqueue);
	for (cnt = 0; cnt < fm->num_sockets; ++cnt) {
		if (fm->sockets[cnt])
			device_unregister(&fm->sockets[cnt]->dev);
	}

	spin_lock(&tifm_adapter_lock);
	idr_remove(&tifm_adapter_idr, fm->id);
	spin_unlock(&tifm_adapter_lock);
	device_del(&fm->dev);
}
EXPORT_SYMBOL(tifm_remove_adapter);

void tifm_free_adapter(struct tifm_adapter *fm)
{
	put_device(&fm->dev);
}
EXPORT_SYMBOL(tifm_free_adapter);

void tifm_free_device(struct device *dev)
{
	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	kfree(sock);
}
EXPORT_SYMBOL(tifm_free_device);

struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
				   unsigned char type)
{
	struct tifm_dev *sock = NULL;

	if (!tifm_media_type_name(type, 0))
		return sock;

	sock = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
	if (sock) {
		spin_lock_init(&sock->lock);
		sock->type = type;
		sock->socket_id = id;
		sock->card_event = tifm_dummy_event;
		sock->data_event = tifm_dummy_event;

		sock->dev.parent = fm->dev.parent;
		sock->dev.bus = &tifm_bus_type;
		sock->dev.dma_mask = fm->dev.parent->dma_mask;
		sock->dev.release = tifm_free_device;

		dev_set_name(&sock->dev, "tifm_%s%u:%u",
			     tifm_media_type_name(type, 2), fm->id, id);
		printk(KERN_INFO DRIVER_NAME
		       ": %s card detected in socket %u:%u\n",
		       tifm_media_type_name(type, 0), fm->id, id);
	}
	return sock;
}
EXPORT_SYMBOL(tifm_alloc_device);

void tifm_eject(struct tifm_dev *sock)
{
	struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
	fm->eject(fm, sock);
}
EXPORT_SYMBOL(tifm_eject);

int tifm_has_ms_pif(struct tifm_dev *sock)
{
	struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
	return fm->has_ms_pif(fm, sock);
}
EXPORT_SYMBOL(tifm_has_ms_pif);

int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
		int direction)
{
	return pci_map_sg(to_pci_dev(sock->dev.parent), sg, nents, direction);
}
EXPORT_SYMBOL(tifm_map_sg);

void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
		   int direction)
{
	pci_unmap_sg(to_pci_dev(sock->dev.parent), sg, nents, direction);
}
EXPORT_SYMBOL(tifm_unmap_sg);

void tifm_queue_work(struct work_struct *work)
{
	queue_work(workqueue, work);
}
EXPORT_SYMBOL(tifm_queue_work);

int tifm_register_driver(struct tifm_driver *drv)
{
	drv->driver.bus = &tifm_bus_type;

	return driver_register(&drv->driver);
}
EXPORT_SYMBOL(tifm_register_driver);

void tifm_unregister_driver(struct tifm_driver *drv)
{
	driver_unregister(&drv->driver);
}
EXPORT_SYMBOL(tifm_unregister_driver);

static int __init tifm_init(void)
{
	int rc;

	workqueue = create_freezeable_workqueue("tifm");
	if (!workqueue)
		return -ENOMEM;

	rc = bus_register(&tifm_bus_type);

	if (rc)
		goto err_out_wq;

	rc = class_register(&tifm_adapter_class);
	if (!rc)
		return 0;

	bus_unregister(&tifm_bus_type);

err_out_wq:
	destroy_workqueue(workqueue);

	return rc;
}

static void __exit tifm_exit(void)
{
	class_unregister(&tifm_adapter_class);
	bus_unregister(&tifm_bus_type);
	destroy_workqueue(workqueue);
}

subsys_initcall(tifm_init);
module_exit(tifm_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Alex Dubov");
MODULE_DESCRIPTION("TI FlashMedia core driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRIVER_VERSION);
Commit	Line	Data
4020f2d7 AD	1	/*
	2	* tifm_core.c - TI FlashMedia driver
	3	*
	4	* Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*
	10	*/
	11
	12	#include <linux/tifm.h>
	13	#include <linux/init.h>
	14	#include <linux/idr.h>
	15
	16	#define DRIVER_NAME "tifm_core"
4552f0cb	17	#define DRIVER_VERSION "0.8"
4020f2d7	18
3540af8f	19	static struct workqueue_struct *workqueue;
4020f2d7 AD	20	static DEFINE_IDR(tifm_adapter_idr);
	21	static DEFINE_SPINLOCK(tifm_adapter_lock);
	22
e23f2b8a	23	static const char *tifm_media_type_name(unsigned char type, unsigned char nt)
4020f2d7	24	{
e23f2b8a AD	25	const char *card_type_name[3][3] = {
	26	{ "SmartMedia/xD", "MemoryStick", "MMC/SD" },
	27	{ "XD", "MS", "SD"},
	28	{ "xd", "ms", "sd"}
	29	};
	30
	31	if (nt > 2 \|\| type < 1 \|\| type > 3)
	32	return NULL;
	33	return card_type_name[nt][type - 1];
4020f2d7 AD	34	}
4020f2d7 AD	35
e23f2b8a	36	static int tifm_dev_match(struct tifm_dev sock, struct tifm_device_id id)
4020f2d7	37	{
e23f2b8a	38	if (sock->type == id->type)
4020f2d7	39	return 1;
e23f2b8a AD	40	return 0;
	41	}
	42
	43	static int tifm_bus_match(struct device dev, struct device_driver drv)
	44	{
	45	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	46	struct tifm_driver *fm_drv = container_of(drv, struct tifm_driver,
	47	driver);
	48	struct tifm_device_id *ids = fm_drv->id_table;
	49
	50	if (ids) {
	51	while (ids->type) {
	52	if (tifm_dev_match(sock, ids))
	53	return 1;
	54	++ids;
	55	}
	56	}
	57	return 0;
4020f2d7 AD	58	}
4020f2d7 AD	59
7eff2e7a	60	static int tifm_uevent(struct device dev, struct kobj_uevent_env env)
4020f2d7	61	{
e23f2b8a	62	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
4020f2d7	63
7eff2e7a	64	if (add_uevent_var(env, "TIFM_CARD_TYPE=%s", tifm_media_type_name(sock->type, 1)))
4020f2d7 AD	65	return -ENOMEM;
	66
	67	return 0;
	68	}
	69
8dc4a61e AD	70	static int tifm_device_probe(struct device *dev)
	71	{
	72	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	73	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
	74	driver);
	75	int rc = -ENODEV;
	76
	77	get_device(dev);
	78	if (dev->driver && drv->probe) {
	79	rc = drv->probe(sock);
	80	if (!rc)
	81	return 0;
	82	}
	83	put_device(dev);
	84	return rc;
	85	}
	86
	87	static void tifm_dummy_event(struct tifm_dev *sock)
	88	{
	89	return;
	90	}
	91
	92	static int tifm_device_remove(struct device *dev)
	93	{
	94	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	95	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
	96	driver);
	97
	98	if (dev->driver && drv->remove) {
	99	sock->card_event = tifm_dummy_event;
	100	sock->data_event = tifm_dummy_event;
	101	drv->remove(sock);
	102	sock->dev.driver = NULL;
	103	}
	104
	105	put_device(dev);
	106	return 0;
	107	}
	108
41d78f74 AD	109	#ifdef CONFIG_PM
	110
	111	static int tifm_device_suspend(struct device *dev, pm_message_t state)
	112	{
91f8d011	113	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
8dc4a61e AD	114	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
8dc4a61e AD	115	driver);
41d78f74	116
8dc4a61e	117	if (dev->driver && drv->suspend)
91f8d011	118	return drv->suspend(sock, state);
41d78f74 AD	119	return 0;
	120	}
	121
	122	static int tifm_device_resume(struct device *dev)
	123	{
91f8d011	124	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
8dc4a61e AD	125	struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
8dc4a61e AD	126	driver);
41d78f74	127
8dc4a61e	128	if (dev->driver && drv->resume)
91f8d011	129	return drv->resume(sock);
41d78f74 AD	130	return 0;
	131	}
	132
	133	#else
	134
	135	#define tifm_device_suspend NULL
	136	#define tifm_device_resume NULL
	137
	138	#endif /* CONFIG_PM */
	139
4e64f223 AD	140	static ssize_t type_show(struct device dev, struct device_attribute attr,
	141	char *buf)
	142	{
	143	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
	144	return sprintf(buf, "%x", sock->type);
	145	}
	146
	147	static struct device_attribute tifm_dev_attrs[] = {
	148	__ATTR(type, S_IRUGO, type_show, NULL),
	149	__ATTR_NULL
	150	};
	151
4020f2d7	152	static struct bus_type tifm_bus_type = {
91f8d011 AD	153	.name = "tifm",
	154	.dev_attrs = tifm_dev_attrs,
	155	.match = tifm_bus_match,
	156	.uevent = tifm_uevent,
	157	.probe = tifm_device_probe,
	158	.remove = tifm_device_remove,
	159	.suspend = tifm_device_suspend,
	160	.resume = tifm_device_resume
4020f2d7 AD	161	};
4020f2d7 AD	162
7dd817d0	163	static void tifm_free(struct device *dev)
4020f2d7	164	{
7dd817d0	165	struct tifm_adapter *fm = container_of(dev, struct tifm_adapter, dev);
4020f2d7	166
4020f2d7 AD	167	kfree(fm);
	168	}
	169
	170	static struct class tifm_adapter_class = {
	171	.name = "tifm_adapter",
7dd817d0	172	.dev_release = tifm_free
4020f2d7 AD	173	};
4020f2d7 AD	174
6113ed73 AD	175	struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
6113ed73 AD	176	struct device *dev)
4020f2d7 AD	177	{
	178	struct tifm_adapter *fm;
	179
6113ed73 AD	180	fm = kzalloc(sizeof(struct tifm_adapter)
6113ed73 AD	181	+ sizeof(struct tifm_dev) num_sockets, GFP_KERNEL);
4020f2d7	182	if (fm) {
7dd817d0 TJ	183	fm->dev.class = &tifm_adapter_class;
	184	fm->dev.parent = dev;
	185	device_initialize(&fm->dev);
6113ed73 AD	186	spin_lock_init(&fm->lock);
6113ed73 AD	187	fm->num_sockets = num_sockets;
4020f2d7 AD	188	}
	189	return fm;
	190	}
	191	EXPORT_SYMBOL(tifm_alloc_adapter);
	192
3540af8f	193	int tifm_add_adapter(struct tifm_adapter *fm)
4020f2d7 AD	194	{
	195	int rc;
	196
	197	if (!idr_pre_get(&tifm_adapter_idr, GFP_KERNEL))
	198	return -ENOMEM;
	199
	200	spin_lock(&tifm_adapter_lock);
	201	rc = idr_get_new(&tifm_adapter_idr, fm, &fm->id);
	202	spin_unlock(&tifm_adapter_lock);
6113ed73 AD	203	if (rc)
	204	return rc;
	205
0bad16aa	206	dev_set_name(&fm->dev, "tifm%u", fm->id);
7dd817d0	207	rc = device_add(&fm->dev);
6113ed73 AD	208	if (rc) {
	209	spin_lock(&tifm_adapter_lock);
	210	idr_remove(&tifm_adapter_idr, fm->id);
	211	spin_unlock(&tifm_adapter_lock);
4020f2d7	212	}
6113ed73	213
4020f2d7 AD	214	return rc;
	215	}
	216	EXPORT_SYMBOL(tifm_add_adapter);
	217
	218	void tifm_remove_adapter(struct tifm_adapter *fm)
	219	{
6113ed73 AD	220	unsigned int cnt;
6113ed73 AD	221
3540af8f	222	flush_workqueue(workqueue);
6113ed73 AD	223	for (cnt = 0; cnt < fm->num_sockets; ++cnt) {
	224	if (fm->sockets[cnt])
	225	device_unregister(&fm->sockets[cnt]->dev);
	226	}
4020f2d7 AD	227
	228	spin_lock(&tifm_adapter_lock);
	229	idr_remove(&tifm_adapter_idr, fm->id);
	230	spin_unlock(&tifm_adapter_lock);
7dd817d0	231	device_del(&fm->dev);
4020f2d7 AD	232	}
	233	EXPORT_SYMBOL(tifm_remove_adapter);
	234
6113ed73 AD	235	void tifm_free_adapter(struct tifm_adapter *fm)
6113ed73 AD	236	{
7dd817d0	237	put_device(&fm->dev);
6113ed73 AD	238	}
	239	EXPORT_SYMBOL(tifm_free_adapter);
	240
4020f2d7 AD	241	void tifm_free_device(struct device *dev)
4020f2d7 AD	242	{
2428a8fe AD	243	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
2428a8fe AD	244	kfree(sock);
4020f2d7 AD	245	}
	246	EXPORT_SYMBOL(tifm_free_device);
	247
2428a8fe AD	248	struct tifm_dev tifm_alloc_device(struct tifm_adapter fm, unsigned int id,
2428a8fe AD	249	unsigned char type)
4020f2d7	250	{
2428a8fe AD	251	struct tifm_dev *sock = NULL;
	252
	253	if (!tifm_media_type_name(type, 0))
	254	return sock;
4020f2d7	255
2428a8fe AD	256	sock = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
	257	if (sock) {
	258	spin_lock_init(&sock->lock);
	259	sock->type = type;
	260	sock->socket_id = id;
	261	sock->card_event = tifm_dummy_event;
	262	sock->data_event = tifm_dummy_event;
8e02f858	263
7dd817d0	264	sock->dev.parent = fm->dev.parent;
2428a8fe	265	sock->dev.bus = &tifm_bus_type;
7dd817d0	266	sock->dev.dma_mask = fm->dev.parent->dma_mask;
2428a8fe AD	267	sock->dev.release = tifm_free_device;
2428a8fe AD	268
0bad16aa KS	269	dev_set_name(&sock->dev, "tifm_%s%u:%u",
0bad16aa KS	270	tifm_media_type_name(type, 2), fm->id, id);
2428a8fe AD	271	printk(KERN_INFO DRIVER_NAME
	272	": %s card detected in socket %u:%u\n",
	273	tifm_media_type_name(type, 0), fm->id, id);
4020f2d7	274	}
2428a8fe	275	return sock;
4020f2d7 AD	276	}
	277	EXPORT_SYMBOL(tifm_alloc_device);
	278
	279	void tifm_eject(struct tifm_dev *sock)
	280	{
	281	struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
	282	fm->eject(fm, sock);
	283	}
	284	EXPORT_SYMBOL(tifm_eject);
	285
baf8532a AD	286	int tifm_has_ms_pif(struct tifm_dev *sock)
	287	{
	288	struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
	289	return fm->has_ms_pif(fm, sock);
	290	}
	291	EXPORT_SYMBOL(tifm_has_ms_pif);
	292
4020f2d7 AD	293	int tifm_map_sg(struct tifm_dev sock, struct scatterlist sg, int nents,
	294	int direction)
	295	{
	296	return pci_map_sg(to_pci_dev(sock->dev.parent), sg, nents, direction);
	297	}
	298	EXPORT_SYMBOL(tifm_map_sg);
	299
	300	void tifm_unmap_sg(struct tifm_dev sock, struct scatterlist sg, int nents,
	301	int direction)
	302	{
	303	pci_unmap_sg(to_pci_dev(sock->dev.parent), sg, nents, direction);
	304	}
	305	EXPORT_SYMBOL(tifm_unmap_sg);
	306
3540af8f AD	307	void tifm_queue_work(struct work_struct *work)
	308	{
	309	queue_work(workqueue, work);
	310	}
	311	EXPORT_SYMBOL(tifm_queue_work);
	312
4020f2d7 AD	313	int tifm_register_driver(struct tifm_driver *drv)
	314	{
	315	drv->driver.bus = &tifm_bus_type;
4020f2d7 AD	316
	317	return driver_register(&drv->driver);
	318	}
	319	EXPORT_SYMBOL(tifm_register_driver);
	320
	321	void tifm_unregister_driver(struct tifm_driver *drv)
	322	{
	323	driver_unregister(&drv->driver);
	324	}
	325	EXPORT_SYMBOL(tifm_unregister_driver);
	326
	327	static int __init tifm_init(void)
	328	{
3540af8f	329	int rc;
4020f2d7	330
3540af8f AD	331	workqueue = create_freezeable_workqueue("tifm");
	332	if (!workqueue)
	333	return -ENOMEM;
	334
	335	rc = bus_register(&tifm_bus_type);
	336
	337	if (rc)
	338	goto err_out_wq;
	339
	340	rc = class_register(&tifm_adapter_class);
	341	if (!rc)
	342	return 0;
	343
	344	bus_unregister(&tifm_bus_type);
	345
	346	err_out_wq:
	347	destroy_workqueue(workqueue);
4020f2d7 AD	348
	349	return rc;
	350	}
	351
	352	static void __exit tifm_exit(void)
	353	{
	354	class_unregister(&tifm_adapter_class);
	355	bus_unregister(&tifm_bus_type);
3540af8f	356	destroy_workqueue(workqueue);
4020f2d7 AD	357	}
	358
	359	subsys_initcall(tifm_init);
	360	module_exit(tifm_exit);
	361
	362	MODULE_LICENSE("GPL");
	363	MODULE_AUTHOR("Alex Dubov");
	364	MODULE_DESCRIPTION("TI FlashMedia core driver");
	365	MODULE_LICENSE("GPL");
	366	MODULE_VERSION(DRIVER_VERSION);