[linux-2.6-block.git] / drivers / net / phy / spi_ks8995.c

/*
 * SPI driver for Micrel/Kendin KS8995M ethernet switch
 *
 * Copyright (C) 2008 Gabor Juhos <juhosg at openwrt.org>
 *
 * This file was based on: drivers/spi/at25.c
 *     Copyright (C) 2006 David Brownell
 *
 * 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/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/device.h>

#include <linux/spi/spi.h>

#define DRV_VERSION		"0.1.1"
#define DRV_DESC		"Micrel KS8995 Ethernet switch SPI driver"

/* ------------------------------------------------------------------------ */

#define KS8995_REG_ID0		0x00    /* Chip ID0 */
#define KS8995_REG_ID1		0x01    /* Chip ID1 */

#define KS8995_REG_GC0		0x02    /* Global Control 0 */
#define KS8995_REG_GC1		0x03    /* Global Control 1 */
#define KS8995_REG_GC2		0x04    /* Global Control 2 */
#define KS8995_REG_GC3		0x05    /* Global Control 3 */
#define KS8995_REG_GC4		0x06    /* Global Control 4 */
#define KS8995_REG_GC5		0x07    /* Global Control 5 */
#define KS8995_REG_GC6		0x08    /* Global Control 6 */
#define KS8995_REG_GC7		0x09    /* Global Control 7 */
#define KS8995_REG_GC8		0x0a    /* Global Control 8 */
#define KS8995_REG_GC9		0x0b    /* Global Control 9 */

#define KS8995_REG_PC(p, r)	((0x10 * p) + r)	 /* Port Control */
#define KS8995_REG_PS(p, r)	((0x10 * p) + r + 0xe)  /* Port Status */

#define KS8995_REG_TPC0		0x60    /* TOS Priority Control 0 */
#define KS8995_REG_TPC1		0x61    /* TOS Priority Control 1 */
#define KS8995_REG_TPC2		0x62    /* TOS Priority Control 2 */
#define KS8995_REG_TPC3		0x63    /* TOS Priority Control 3 */
#define KS8995_REG_TPC4		0x64    /* TOS Priority Control 4 */
#define KS8995_REG_TPC5		0x65    /* TOS Priority Control 5 */
#define KS8995_REG_TPC6		0x66    /* TOS Priority Control 6 */
#define KS8995_REG_TPC7		0x67    /* TOS Priority Control 7 */

#define KS8995_REG_MAC0		0x68    /* MAC address 0 */
#define KS8995_REG_MAC1		0x69    /* MAC address 1 */
#define KS8995_REG_MAC2		0x6a    /* MAC address 2 */
#define KS8995_REG_MAC3		0x6b    /* MAC address 3 */
#define KS8995_REG_MAC4		0x6c    /* MAC address 4 */
#define KS8995_REG_MAC5		0x6d    /* MAC address 5 */

#define KS8995_REG_IAC0		0x6e    /* Indirect Access Control 0 */
#define KS8995_REG_IAC1		0x6f    /* Indirect Access Control 0 */
#define KS8995_REG_IAD7		0x70    /* Indirect Access Data 7 */
#define KS8995_REG_IAD6		0x71    /* Indirect Access Data 6 */
#define KS8995_REG_IAD5		0x72    /* Indirect Access Data 5 */
#define KS8995_REG_IAD4		0x73    /* Indirect Access Data 4 */
#define KS8995_REG_IAD3		0x74    /* Indirect Access Data 3 */
#define KS8995_REG_IAD2		0x75    /* Indirect Access Data 2 */
#define KS8995_REG_IAD1		0x76    /* Indirect Access Data 1 */
#define KS8995_REG_IAD0		0x77    /* Indirect Access Data 0 */

#define KS8995_REGS_SIZE	0x80

#define ID1_CHIPID_M		0xf
#define ID1_CHIPID_S		4
#define ID1_REVISION_M		0x7
#define ID1_REVISION_S		1
#define ID1_START_SW		1	/* start the switch */

#define FAMILY_KS8995		0x95
#define CHIPID_M		0

#define KS8995_CMD_WRITE	0x02U
#define KS8995_CMD_READ		0x03U

#define KS8995_RESET_DELAY	10 /* usec */

struct ks8995_pdata {
	/* not yet implemented */
};

struct ks8995_switch {
	struct spi_device	*spi;
	struct mutex		lock;
	struct ks8995_pdata	*pdata;
};

static inline u8 get_chip_id(u8 val)
{
	return (val >> ID1_CHIPID_S) & ID1_CHIPID_M;
}

static inline u8 get_chip_rev(u8 val)
{
	return (val >> ID1_REVISION_S) & ID1_REVISION_M;
}

/* ------------------------------------------------------------------------ */
static int ks8995_read(struct ks8995_switch *ks, char *buf,
		 unsigned offset, size_t count)
{
	u8 cmd[2];
	struct spi_transfer t[2];
	struct spi_message m;
	int err;

	spi_message_init(&m);

	memset(&t, 0, sizeof(t));

	t[0].tx_buf = cmd;
	t[0].len = sizeof(cmd);
	spi_message_add_tail(&t[0], &m);

	t[1].rx_buf = buf;
	t[1].len = count;
	spi_message_add_tail(&t[1], &m);

	cmd[0] = KS8995_CMD_READ;
	cmd[1] = offset;

	mutex_lock(&ks->lock);
	err = spi_sync(ks->spi, &m);
	mutex_unlock(&ks->lock);

	return err ? err : count;
}


static int ks8995_write(struct ks8995_switch *ks, char *buf,
		 unsigned offset, size_t count)
{
	u8 cmd[2];
	struct spi_transfer t[2];
	struct spi_message m;
	int err;

	spi_message_init(&m);

	memset(&t, 0, sizeof(t));

	t[0].tx_buf = cmd;
	t[0].len = sizeof(cmd);
	spi_message_add_tail(&t[0], &m);

	t[1].tx_buf = buf;
	t[1].len = count;
	spi_message_add_tail(&t[1], &m);

	cmd[0] = KS8995_CMD_WRITE;
	cmd[1] = offset;

	mutex_lock(&ks->lock);
	err = spi_sync(ks->spi, &m);
	mutex_unlock(&ks->lock);

	return err ? err : count;
}

static inline int ks8995_read_reg(struct ks8995_switch *ks, u8 addr, u8 *buf)
{
	return (ks8995_read(ks, buf, addr, 1) != 1);
}

static inline int ks8995_write_reg(struct ks8995_switch *ks, u8 addr, u8 val)
{
	char buf = val;

	return (ks8995_write(ks, &buf, addr, 1) != 1);
}

/* ------------------------------------------------------------------------ */

static int ks8995_stop(struct ks8995_switch *ks)
{
	return ks8995_write_reg(ks, KS8995_REG_ID1, 0);
}

static int ks8995_start(struct ks8995_switch *ks)
{
	return ks8995_write_reg(ks, KS8995_REG_ID1, 1);
}

static int ks8995_reset(struct ks8995_switch *ks)
{
	int err;

	err = ks8995_stop(ks);
	if (err)
		return err;

	udelay(KS8995_RESET_DELAY);

	return ks8995_start(ks);
}

/* ------------------------------------------------------------------------ */

static ssize_t ks8995_registers_read(struct file *filp, struct kobject *kobj,
	struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count)
{
	struct device *dev;
	struct ks8995_switch *ks8995;

	dev = container_of(kobj, struct device, kobj);
	ks8995 = dev_get_drvdata(dev);

	if (unlikely(off > KS8995_REGS_SIZE))
		return 0;

	if ((off + count) > KS8995_REGS_SIZE)
		count = KS8995_REGS_SIZE - off;

	if (unlikely(!count))
		return count;

	return ks8995_read(ks8995, buf, off, count);
}


static ssize_t ks8995_registers_write(struct file *filp, struct kobject *kobj,
	struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count)
{
	struct device *dev;
	struct ks8995_switch *ks8995;

	dev = container_of(kobj, struct device, kobj);
	ks8995 = dev_get_drvdata(dev);

	if (unlikely(off >= KS8995_REGS_SIZE))
		return -EFBIG;

	if ((off + count) > KS8995_REGS_SIZE)
		count = KS8995_REGS_SIZE - off;

	if (unlikely(!count))
		return count;

	return ks8995_write(ks8995, buf, off, count);
}


static struct bin_attribute ks8995_registers_attr = {
	.attr = {
		.name   = "registers",
		.mode   = S_IRUSR | S_IWUSR,
	},
	.size   = KS8995_REGS_SIZE,
	.read   = ks8995_registers_read,
	.write  = ks8995_registers_write,
};

/* ------------------------------------------------------------------------ */

static int __devinit ks8995_probe(struct spi_device *spi)
{
	struct ks8995_switch    *ks;
	struct ks8995_pdata     *pdata;
	u8      ids[2];
	int     err;

	/* Chip description */
	pdata = spi->dev.platform_data;

	ks = kzalloc(sizeof(*ks), GFP_KERNEL);
	if (!ks) {
		dev_err(&spi->dev, "no memory for private data\n");
		return -ENOMEM;
	}

	mutex_init(&ks->lock);
	ks->pdata = pdata;
	ks->spi = spi_dev_get(spi);
	dev_set_drvdata(&spi->dev, ks);

	spi->mode = SPI_MODE_0;
	spi->bits_per_word = 8;
	err = spi_setup(spi);
	if (err) {
		dev_err(&spi->dev, "spi_setup failed, err=%d\n", err);
		goto err_drvdata;
	}

	err = ks8995_read(ks, ids, KS8995_REG_ID0, sizeof(ids));
	if (err < 0) {
		dev_err(&spi->dev, "unable to read id registers, err=%d\n",
				err);
		goto err_drvdata;
	}

	switch (ids[0]) {
	case FAMILY_KS8995:
		break;
	default:
		dev_err(&spi->dev, "unknown family id:%02x\n", ids[0]);
		err = -ENODEV;
		goto err_drvdata;
	}

	err = ks8995_reset(ks);
	if (err)
		goto err_drvdata;

	err = sysfs_create_bin_file(&spi->dev.kobj, &ks8995_registers_attr);
	if (err) {
		dev_err(&spi->dev, "unable to create sysfs file, err=%d\n",
				    err);
		goto err_drvdata;
	}

	dev_info(&spi->dev, "KS89%02X device found, Chip ID:%01x, "
			"Revision:%01x\n", ids[0],
			get_chip_id(ids[1]), get_chip_rev(ids[1]));

	return 0;

err_drvdata:
	dev_set_drvdata(&spi->dev, NULL);
	kfree(ks);
	return err;
}

static int __devexit ks8995_remove(struct spi_device *spi)
{
	struct ks8995_data      *ks8995;

	ks8995 = dev_get_drvdata(&spi->dev);
	sysfs_remove_bin_file(&spi->dev.kobj, &ks8995_registers_attr);

	dev_set_drvdata(&spi->dev, NULL);
	kfree(ks8995);

	return 0;
}

/* ------------------------------------------------------------------------ */

static struct spi_driver ks8995_driver = {
	.driver = {
		.name	    = "spi-ks8995",
		.owner	   = THIS_MODULE,
	},
	.probe	  = ks8995_probe,
	.remove	  = __devexit_p(ks8995_remove),
};

static int __init ks8995_init(void)
{
	printk(KERN_INFO DRV_DESC " version " DRV_VERSION"\n");

	return spi_register_driver(&ks8995_driver);
}
module_init(ks8995_init);

static void __exit ks8995_exit(void)
{
	spi_unregister_driver(&ks8995_driver);
}
module_exit(ks8995_exit);

MODULE_DESCRIPTION(DRV_DESC);
MODULE_VERSION(DRV_VERSION);
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
a8e510f6 FL	1	/*
	2	* SPI driver for Micrel/Kendin KS8995M ethernet switch
	3	*
	4	* Copyright (C) 2008 Gabor Juhos <juhosg at openwrt.org>
	5	*
	6	* This file was based on: drivers/spi/at25.c
	7	* Copyright (C) 2006 David Brownell
	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms of the GNU General Public License version 2 as published
	11	* by the Free Software Foundation.
	12	*/
	13
	14	#include <linux/types.h>
	15	#include <linux/kernel.h>
	16	#include <linux/init.h>
	17	#include <linux/module.h>
	18	#include <linux/delay.h>
	19	#include <linux/device.h>
	20
	21	#include <linux/spi/spi.h>
	22
	23	#define DRV_VERSION "0.1.1"
	24	#define DRV_DESC "Micrel KS8995 Ethernet switch SPI driver"
	25
	26	/* ------------------------------------------------------------------------ */
	27
	28	#define KS8995_REG_ID0 0x00 /* Chip ID0 */
	29	#define KS8995_REG_ID1 0x01 /* Chip ID1 */
	30
	31	#define KS8995_REG_GC0 0x02 /* Global Control 0 */
	32	#define KS8995_REG_GC1 0x03 /* Global Control 1 */
	33	#define KS8995_REG_GC2 0x04 /* Global Control 2 */
	34	#define KS8995_REG_GC3 0x05 /* Global Control 3 */
	35	#define KS8995_REG_GC4 0x06 /* Global Control 4 */
	36	#define KS8995_REG_GC5 0x07 /* Global Control 5 */
	37	#define KS8995_REG_GC6 0x08 /* Global Control 6 */
	38	#define KS8995_REG_GC7 0x09 /* Global Control 7 */
	39	#define KS8995_REG_GC8 0x0a /* Global Control 8 */
	40	#define KS8995_REG_GC9 0x0b /* Global Control 9 */
	41
	42	#define KS8995_REG_PC(p, r) ((0x10 * p) + r) /* Port Control */
	43	#define KS8995_REG_PS(p, r) ((0x10 * p) + r + 0xe) /* Port Status */
	44
	45	#define KS8995_REG_TPC0 0x60 /* TOS Priority Control 0 */
	46	#define KS8995_REG_TPC1 0x61 /* TOS Priority Control 1 */
	47	#define KS8995_REG_TPC2 0x62 /* TOS Priority Control 2 */
	48	#define KS8995_REG_TPC3 0x63 /* TOS Priority Control 3 */
	49	#define KS8995_REG_TPC4 0x64 /* TOS Priority Control 4 */
	50	#define KS8995_REG_TPC5 0x65 /* TOS Priority Control 5 */
	51	#define KS8995_REG_TPC6 0x66 /* TOS Priority Control 6 */
	52	#define KS8995_REG_TPC7 0x67 /* TOS Priority Control 7 */
	53
	54	#define KS8995_REG_MAC0 0x68 /* MAC address 0 */
	55	#define KS8995_REG_MAC1 0x69 /* MAC address 1 */
	56	#define KS8995_REG_MAC2 0x6a /* MAC address 2 */
	57	#define KS8995_REG_MAC3 0x6b /* MAC address 3 */
	58	#define KS8995_REG_MAC4 0x6c /* MAC address 4 */
	59	#define KS8995_REG_MAC5 0x6d /* MAC address 5 */
	60
	61	#define KS8995_REG_IAC0 0x6e /* Indirect Access Control 0 */
	62	#define KS8995_REG_IAC1 0x6f /* Indirect Access Control 0 */
	63	#define KS8995_REG_IAD7 0x70 /* Indirect Access Data 7 */
	64	#define KS8995_REG_IAD6 0x71 /* Indirect Access Data 6 */
65	#define KS8995_REG_IAD5 0x72 /* Indirect Access Data 5 */
66	#define KS8995_REG_IAD4 0x73 /* Indirect Access Data 4 */
67	#define KS8995_REG_IAD3 0x74 /* Indirect Access Data 3 */
68	#define KS8995_REG_IAD2 0x75 /* Indirect Access Data 2 */
69	#define KS8995_REG_IAD1 0x76 /* Indirect Access Data 1 */
70	#define KS8995_REG_IAD0 0x77 /* Indirect Access Data 0 */
71
72	#define KS8995_REGS_SIZE 0x80
73
74	#define ID1_CHIPID_M 0xf
75	#define ID1_CHIPID_S 4
76	#define ID1_REVISION_M 0x7
77	#define ID1_REVISION_S 1
78	#define ID1_START_SW 1 /* start the switch */
79
80	#define FAMILY_KS8995 0x95
81	#define CHIPID_M 0
82
83	#define KS8995_CMD_WRITE 0x02U
84	#define KS8995_CMD_READ 0x03U
85
86	#define KS8995_RESET_DELAY 10 /* usec */
87
88	struct ks8995_pdata {
89	/* not yet implemented */
90	};
91
92	struct ks8995_switch {
93	struct spi_device *spi;
94	struct mutex lock;
95	struct ks8995_pdata *pdata;
96	};
97
98	static inline u8 get_chip_id(u8 val)
99	{
100	return (val >> ID1_CHIPID_S) & ID1_CHIPID_M;
101	}
102
103	static inline u8 get_chip_rev(u8 val)
104	{
105	return (val >> ID1_REVISION_S) & ID1_REVISION_M;
106	}
107
108	/* ------------------------------------------------------------------------ */
109	static int ks8995_read(struct ks8995_switch ks, char buf,
110	unsigned offset, size_t count)
111	{
112	u8 cmd[2];
113	struct spi_transfer t[2];
114	struct spi_message m;
115	int err;
116
117	spi_message_init(&m);
118
119	memset(&t, 0, sizeof(t));
120
121	t[0].tx_buf = cmd;
122	t[0].len = sizeof(cmd);
123	spi_message_add_tail(&t[0], &m);
124
125	t[1].rx_buf = buf;
126	t[1].len = count;
127	spi_message_add_tail(&t[1], &m);
128
129	cmd[0] = KS8995_CMD_READ;
130	cmd[1] = offset;
131
132	mutex_lock(&ks->lock);
133	err = spi_sync(ks->spi, &m);
134	mutex_unlock(&ks->lock);
135
136	return err ? err : count;
137	}
138
139
140	static int ks8995_write(struct ks8995_switch ks, char buf,
141	unsigned offset, size_t count)
142	{
143	u8 cmd[2];
144	struct spi_transfer t[2];
145	struct spi_message m;
146	int err;
147
148	spi_message_init(&m);
149
150	memset(&t, 0, sizeof(t));
151
152	t[0].tx_buf = cmd;
153	t[0].len = sizeof(cmd);
154	spi_message_add_tail(&t[0], &m);
155
156	t[1].tx_buf = buf;
157	t[1].len = count;
158	spi_message_add_tail(&t[1], &m);
159
160	cmd[0] = KS8995_CMD_WRITE;
161	cmd[1] = offset;
162
163	mutex_lock(&ks->lock);
164	err = spi_sync(ks->spi, &m);
165	mutex_unlock(&ks->lock);
166
167	return err ? err : count;
168	}
169
170	static inline int ks8995_read_reg(struct ks8995_switch ks, u8 addr, u8 buf)
171	{
172	return (ks8995_read(ks, buf, addr, 1) != 1);
173	}
174
175	static inline int ks8995_write_reg(struct ks8995_switch *ks, u8 addr, u8 val)
176	{
177	char buf = val;
178
179	return (ks8995_write(ks, &buf, addr, 1) != 1);
180	}
181
182	/* ------------------------------------------------------------------------ */
183
184	static int ks8995_stop(struct ks8995_switch *ks)
185	{
186	return ks8995_write_reg(ks, KS8995_REG_ID1, 0);
187	}
188
189	static int ks8995_start(struct ks8995_switch *ks)
190	{
191	return ks8995_write_reg(ks, KS8995_REG_ID1, 1);
192	}
193
194	static int ks8995_reset(struct ks8995_switch *ks)
195	{
196	int err;
197
198	err = ks8995_stop(ks);
199	if (err)
200	return err;
201
202	udelay(KS8995_RESET_DELAY);
203
204	return ks8995_start(ks);
205	}
206
207	/* ------------------------------------------------------------------------ */
208
209	static ssize_t ks8995_registers_read(struct file filp, struct kobject kobj,
210	struct bin_attribute bin_attr, char buf, loff_t off, size_t count)
211	{
212	struct device *dev;
213	struct ks8995_switch *ks8995;
214
215	dev = container_of(kobj, struct device, kobj);
216	ks8995 = dev_get_drvdata(dev);
217
218	if (unlikely(off > KS8995_REGS_SIZE))
219	return 0;
220
221	if ((off + count) > KS8995_REGS_SIZE)
222	count = KS8995_REGS_SIZE - off;
223
224	if (unlikely(!count))
225	return count;
226
227	return ks8995_read(ks8995, buf, off, count);
228	}
229
230
231	static ssize_t ks8995_registers_write(struct file filp, struct kobject kobj,
232	struct bin_attribute bin_attr, char buf, loff_t off, size_t count)
233	{
234	struct device *dev;
235	struct ks8995_switch *ks8995;
236
237	dev = container_of(kobj, struct device, kobj);
238	ks8995 = dev_get_drvdata(dev);
239
240	if (unlikely(off >= KS8995_REGS_SIZE))
241	return -EFBIG;
242
243	if ((off + count) > KS8995_REGS_SIZE)
244	count = KS8995_REGS_SIZE - off;
245
246	if (unlikely(!count))
247	return count;
248
249	return ks8995_write(ks8995, buf, off, count);
250	}
251
252
253	static struct bin_attribute ks8995_registers_attr = {
254	.attr = {
255	.name = "registers",
256	.mode = S_IRUSR \| S_IWUSR,
257	},
258	.size = KS8995_REGS_SIZE,
259	.read = ks8995_registers_read,
260	.write = ks8995_registers_write,
261	};
262
263	/* ------------------------------------------------------------------------ */
264
265	static int __devinit ks8995_probe(struct spi_device *spi)
266	{
267	struct ks8995_switch *ks;
268	struct ks8995_pdata *pdata;
269	u8 ids[2];
270	int err;
271
272	/* Chip description */
273	pdata = spi->dev.platform_data;
274
275	ks = kzalloc(sizeof(*ks), GFP_KERNEL);
276	if (!ks) {
277	dev_err(&spi->dev, "no memory for private data\n");
278	return -ENOMEM;
279	}
280
281	mutex_init(&ks->lock);
282	ks->pdata = pdata;
283	ks->spi = spi_dev_get(spi);
284	dev_set_drvdata(&spi->dev, ks);
285
286	spi->mode = SPI_MODE_0;
287	spi->bits_per_word = 8;
288	err = spi_setup(spi);
289	if (err) {
290	dev_err(&spi->dev, "spi_setup failed, err=%d\n", err);
291	goto err_drvdata;
292	}
293
294	err = ks8995_read(ks, ids, KS8995_REG_ID0, sizeof(ids));
295	if (err < 0) {
296	dev_err(&spi->dev, "unable to read id registers, err=%d\n",
297	err);
298	goto err_drvdata;
299	}
300
301	switch (ids[0]) {
302	case FAMILY_KS8995:
303	break;
304	default:
305	dev_err(&spi->dev, "unknown family id:%02x\n", ids[0]);
306	err = -ENODEV;
307	goto err_drvdata;
308	}
309
310	err = ks8995_reset(ks);
311	if (err)
312	goto err_drvdata;
313
314	err = sysfs_create_bin_file(&spi->dev.kobj, &ks8995_registers_attr);
315	if (err) {
316	dev_err(&spi->dev, "unable to create sysfs file, err=%d\n",
317	err);
318	goto err_drvdata;
319	}
320
321	dev_info(&spi->dev, "KS89%02X device found, Chip ID:%01x, "
322	"Revision:%01x\n", ids[0],
323	get_chip_id(ids[1]), get_chip_rev(ids[1]));
324
325	return 0;
326
327	err_drvdata:
328	dev_set_drvdata(&spi->dev, NULL);
329	kfree(ks);
330	return err;
331	}
332
333	static int __devexit ks8995_remove(struct spi_device *spi)
334	{
335	struct ks8995_data *ks8995;
336
337	ks8995 = dev_get_drvdata(&spi->dev);
338	sysfs_remove_bin_file(&spi->dev.kobj, &ks8995_registers_attr);
339
340	dev_set_drvdata(&spi->dev, NULL);
341	kfree(ks8995);
342
343	return 0;
344	}
345
346	/* ------------------------------------------------------------------------ */
347
348	static struct spi_driver ks8995_driver = {
349	.driver = {
350	.name = "spi-ks8995",
a8e510f6 FL	351	.owner = THIS_MODULE,
	352	},
	353	.probe = ks8995_probe,
	354	.remove = __devexit_p(ks8995_remove),
	355	};
	356
	357	static int __init ks8995_init(void)
	358	{
	359	printk(KERN_INFO DRV_DESC " version " DRV_VERSION"\n");
	360
	361	return spi_register_driver(&ks8995_driver);
	362	}
	363	module_init(ks8995_init);
	364
	365	static void __exit ks8995_exit(void)
	366	{
	367	spi_unregister_driver(&ks8995_driver);
	368	}
	369	module_exit(ks8995_exit);
	370
	371	MODULE_DESCRIPTION(DRV_DESC);
	372	MODULE_VERSION(DRV_VERSION);
	373	MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
	374	MODULE_LICENSE("GPL v2");