[net-next-2.6.git] / drivers / serial / max3107-aava.c

/*
 *  max3107.c - spi uart protocol driver for Maxim 3107
 *  Based on max3100.c
 *	by Christian Pellegrin <chripell@evolware.org>
 *  and	max3110.c
 *	by Feng Tang <feng.tang@intel.com>
 *
 *  Copyright (C) Aavamobile 2009
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 */

#include <linux/delay.h>
#include <linux/device.h>
#include <linux/serial_core.h>
#include <linux/serial.h>
#include <linux/spi/spi.h>
#include <linux/freezer.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/sfi.h>
#include <asm/mrst.h>
#include "max3107.h"

/* GPIO direction to input function */
static int max3107_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
{
	struct max3107_port *s = container_of(chip, struct max3107_port, chip);
	u16 buf[1];		/* Buffer for SPI transfer */

	if (offset >= MAX3107_GPIO_COUNT) {
		dev_err(&s->spi->dev, "Invalid GPIO\n");
		return -EINVAL;
	}

	/* Read current GPIO configuration register */
	buf[0] = MAX3107_GPIOCFG_REG;
	/* Perform SPI transfer */
	if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 2)) {
		dev_err(&s->spi->dev, "SPI transfer GPIO read failed\n");
		return -EIO;
	}
	buf[0] &= MAX3107_SPI_RX_DATA_MASK;

	/* Set GPIO to input */
	buf[0] &= ~(0x0001 << offset);

	/* Write new GPIO configuration register value */
	buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIOCFG_REG);
	/* Perform SPI transfer */
	if (max3107_rw(s, (u8 *)buf, NULL, 2)) {
		dev_err(&s->spi->dev, "SPI transfer GPIO write failed\n");
		return -EIO;
	}
	return 0;
}

/* GPIO direction to output function */
static int max3107_gpio_direction_out(struct gpio_chip *chip, unsigned offset,
					int value)
{
	struct max3107_port *s = container_of(chip, struct max3107_port, chip);
	u16 buf[2];	/* Buffer for SPI transfers */

	if (offset >= MAX3107_GPIO_COUNT) {
		dev_err(&s->spi->dev, "Invalid GPIO\n");
		return -EINVAL;
	}

	/* Read current GPIO configuration and data registers */
	buf[0] = MAX3107_GPIOCFG_REG;
	buf[1] = MAX3107_GPIODATA_REG;
	/* Perform SPI transfer */
	if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 4)) {
		dev_err(&s->spi->dev, "SPI transfer gpio failed\n");
		return -EIO;
	}
	buf[0] &= MAX3107_SPI_RX_DATA_MASK;
	buf[1] &= MAX3107_SPI_RX_DATA_MASK;

	/* Set GPIO to output */
	buf[0] |= (0x0001 << offset);
	/* Set value */
	if (value)
		buf[1] |= (0x0001 << offset);
	else
		buf[1] &= ~(0x0001 << offset);

	/* Write new GPIO configuration and data register values */
	buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIOCFG_REG);
	buf[1] |= (MAX3107_WRITE_BIT | MAX3107_GPIODATA_REG);
	/* Perform SPI transfer */
	if (max3107_rw(s, (u8 *)buf, NULL, 4)) {
		dev_err(&s->spi->dev,
			"SPI transfer for GPIO conf data w failed\n");
		return -EIO;
	}
	return 0;
}

/* GPIO value query function */
static int max3107_gpio_get(struct gpio_chip *chip, unsigned offset)
{
	struct max3107_port *s = container_of(chip, struct max3107_port, chip);
	u16 buf[1];	/* Buffer for SPI transfer */

	if (offset >= MAX3107_GPIO_COUNT) {
		dev_err(&s->spi->dev, "Invalid GPIO\n");
		return -EINVAL;
	}

	/* Read current GPIO data register */
	buf[0] = MAX3107_GPIODATA_REG;
	/* Perform SPI transfer */
	if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 2)) {
		dev_err(&s->spi->dev, "SPI transfer GPIO data r failed\n");
		return -EIO;
	}
	buf[0] &= MAX3107_SPI_RX_DATA_MASK;

	/* Return value */
	return buf[0] & (0x0001 << offset);
}

/* GPIO value set function */
static void max3107_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
	struct max3107_port *s = container_of(chip, struct max3107_port, chip);
	u16 buf[2];	/* Buffer for SPI transfers */

	if (offset >= MAX3107_GPIO_COUNT) {
		dev_err(&s->spi->dev, "Invalid GPIO\n");
		return;
	}

	/* Read current GPIO configuration registers*/
	buf[0] = MAX3107_GPIODATA_REG;
	buf[1] = MAX3107_GPIOCFG_REG;
	/* Perform SPI transfer */
	if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 4)) {
		dev_err(&s->spi->dev,
			"SPI transfer for GPIO data and config read failed\n");
		return;
	}
	buf[0] &= MAX3107_SPI_RX_DATA_MASK;
	buf[1] &= MAX3107_SPI_RX_DATA_MASK;

	if (!(buf[1] & (0x0001 << offset))) {
		/* Configured as input, can't set value */
		dev_warn(&s->spi->dev,
				"Trying to set value for input GPIO\n");
		return;
	}

	/* Set value */
	if (value)
		buf[0] |= (0x0001 << offset);
	else
		buf[0] &= ~(0x0001 << offset);

	/* Write new GPIO data register value */
	buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIODATA_REG);
	/* Perform SPI transfer */
	if (max3107_rw(s, (u8 *)buf, NULL, 2))
		dev_err(&s->spi->dev, "SPI transfer GPIO data w failed\n");
}

/* GPIO chip data */
static struct gpio_chip max3107_gpio_chip = {
	.owner			= THIS_MODULE,
	.direction_input	= max3107_gpio_direction_in,
	.direction_output	= max3107_gpio_direction_out,
	.get			= max3107_gpio_get,
	.set			= max3107_gpio_set,
	.can_sleep		= 1,
	.base			= MAX3107_GPIO_BASE,
	.ngpio			= MAX3107_GPIO_COUNT,
};

/**
 *	max3107_aava_reset	-	reset on AAVA systems
 *	@spi: The SPI device we are probing
 *
 *	Reset the device ready for probing.
 */

static int max3107_aava_reset(struct spi_device *spi)
{
	/* Reset the chip */
	if (gpio_request(MAX3107_RESET_GPIO, "max3107")) {
		pr_err("Requesting RESET GPIO failed\n");
		return -EIO;
	}
	if (gpio_direction_output(MAX3107_RESET_GPIO, 0)) {
		pr_err("Setting RESET GPIO to 0 failed\n");
		gpio_free(MAX3107_RESET_GPIO);
		return -EIO;
	}
	msleep(MAX3107_RESET_DELAY);
	if (gpio_direction_output(MAX3107_RESET_GPIO, 1)) {
		pr_err("Setting RESET GPIO to 1 failed\n");
		gpio_free(MAX3107_RESET_GPIO);
		return -EIO;
	}
	gpio_free(MAX3107_RESET_GPIO);
	msleep(MAX3107_WAKEUP_DELAY);
	return 0;
}

static int max3107_aava_configure(struct max3107_port *s)
{
	int retval;

	/* Initialize GPIO chip data */
	s->chip = max3107_gpio_chip;
	s->chip.label = s->spi->modalias;
	s->chip.dev = &s->spi->dev;

	/* Add GPIO chip */
	retval = gpiochip_add(&s->chip);
	if (retval) {
		dev_err(&s->spi->dev, "Adding GPIO chip failed\n");
		return retval;
	}

	/* Temporary fix for EV2 boot problems, set modem reset to 0 */
	max3107_gpio_direction_out(&s->chip, 3, 0);
	return 0;
}

#if 0
/* This will get enabled once we have the board stuff merged for this
   specific case */

static const struct baud_table brg13_ext[] = {
	{ 300,    MAX3107_BRG13_B300 },
	{ 600,    MAX3107_BRG13_B600 },
	{ 1200,   MAX3107_BRG13_B1200 },
	{ 2400,   MAX3107_BRG13_B2400 },
	{ 4800,   MAX3107_BRG13_B4800 },
	{ 9600,   MAX3107_BRG13_B9600 },
	{ 19200,  MAX3107_BRG13_B19200 },
	{ 57600,  MAX3107_BRG13_B57600 },
	{ 115200, MAX3107_BRG13_B115200 },
	{ 230400, MAX3107_BRG13_B230400 },
	{ 460800, MAX3107_BRG13_B460800 },
	{ 921600, MAX3107_BRG13_B921600 },
	{ 0, 0 }
};

static void max3107_aava_init(struct max3107_port *s)
{
	/*override for AAVA SC specific*/
	if (mrst_platform_id() == MRST_PLATFORM_AAVA_SC) {
		if (get_koski_build_id() <= KOSKI_EV2)
			if (s->ext_clk) {
				s->brg_cfg = MAX3107_BRG13_B9600;
				s->baud_tbl = (struct baud_table *)brg13_ext;
			}
	}
}
#endif

static int __devexit max3107_aava_remove(struct spi_device *spi)
{
	struct max3107_port *s = dev_get_drvdata(&spi->dev);

	/* Remove GPIO chip */
	if (gpiochip_remove(&s->chip))
		dev_warn(&spi->dev, "Removing GPIO chip failed\n");

	/* Then do the default remove */
	return max3107_remove(spi);
}

/* Platform data */
static struct max3107_plat aava_plat_data = {
	.loopback               = 0,
	.ext_clk                = 1,
/*	.init			= max3107_aava_init, */
	.configure		= max3107_aava_configure,
	.hw_suspend		= max3107_hw_susp,
	.polled_mode            = 0,
	.poll_time              = 0,
};


static int __devinit max3107_probe_aava(struct spi_device *spi)
{
	int err = max3107_aava_reset(spi);
	if (err < 0)
		return err;
	return max3107_probe(spi, &aava_plat_data);
}

/* Spi driver data */
static struct spi_driver max3107_driver = {
	.driver = {
		.name		= "aava-max3107",
		.bus		= &spi_bus_type,
		.owner		= THIS_MODULE,
	},
	.probe		= max3107_probe_aava,
	.remove		= __devexit_p(max3107_aava_remove),
	.suspend	= max3107_suspend,
	.resume		= max3107_resume,
};

/* Driver init function */
static int __init max3107_init(void)
{
	return spi_register_driver(&max3107_driver);
}

/* Driver exit function */
static void __exit max3107_exit(void)
{
	spi_unregister_driver(&max3107_driver);
}

module_init(max3107_init);
module_exit(max3107_exit);

MODULE_DESCRIPTION("MAX3107 driver");
MODULE_AUTHOR("Aavamobile");
MODULE_ALIAS("aava-max3107-spi");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
61fd1526 AC	1	/*
	2	* max3107.c - spi uart protocol driver for Maxim 3107
	3	* Based on max3100.c
	4	* by Christian Pellegrin <chripell@evolware.org>
	5	* and max3110.c
	6	* by Feng Tang <feng.tang@intel.com>
	7	*
	8	* Copyright (C) Aavamobile 2009
	9	*
	10	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	25	*
	26	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	27	*
	28	*/
	29
	30	#include <linux/delay.h>
	31	#include <linux/device.h>
	32	#include <linux/serial_core.h>
	33	#include <linux/serial.h>
	34	#include <linux/spi/spi.h>
	35	#include <linux/freezer.h>
	36	#include <linux/platform_device.h>
	37	#include <linux/gpio.h>
	38	#include <linux/sfi.h>
	39	#include <asm/mrst.h>
	40	#include "max3107.h"
	41
	42	/* GPIO direction to input function */
	43	static int max3107_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
	44	{
	45	struct max3107_port *s = container_of(chip, struct max3107_port, chip);
	46	u16 buf[1]; /* Buffer for SPI transfer */
	47
	48	if (offset >= MAX3107_GPIO_COUNT) {
	49	dev_err(&s->spi->dev, "Invalid GPIO\n");
	50	return -EINVAL;
	51	}
	52
	53	/* Read current GPIO configuration register */
	54	buf[0] = MAX3107_GPIOCFG_REG;
	55	/* Perform SPI transfer */
	56	if (max3107_rw(s, (u8 )buf, (u8 )buf, 2)) {
	57	dev_err(&s->spi->dev, "SPI transfer GPIO read failed\n");
	58	return -EIO;
	59	}
	60	buf[0] &= MAX3107_SPI_RX_DATA_MASK;
	61
	62	/* Set GPIO to input */
	63	buf[0] &= ~(0x0001 << offset);
	64
65	/* Write new GPIO configuration register value */
66	buf[0] \|= (MAX3107_WRITE_BIT \| MAX3107_GPIOCFG_REG);
67	/* Perform SPI transfer */
68	if (max3107_rw(s, (u8 *)buf, NULL, 2)) {
69	dev_err(&s->spi->dev, "SPI transfer GPIO write failed\n");
70	return -EIO;
71	}
72	return 0;
73	}
74
75	/* GPIO direction to output function */
76	static int max3107_gpio_direction_out(struct gpio_chip *chip, unsigned offset,
77	int value)
78	{
79	struct max3107_port *s = container_of(chip, struct max3107_port, chip);
80	u16 buf[2]; /* Buffer for SPI transfers */
81
82	if (offset >= MAX3107_GPIO_COUNT) {
83	dev_err(&s->spi->dev, "Invalid GPIO\n");
84	return -EINVAL;
85	}
86
87	/* Read current GPIO configuration and data registers */
88	buf[0] = MAX3107_GPIOCFG_REG;
89	buf[1] = MAX3107_GPIODATA_REG;
90	/* Perform SPI transfer */
91	if (max3107_rw(s, (u8 )buf, (u8 )buf, 4)) {
92	dev_err(&s->spi->dev, "SPI transfer gpio failed\n");
93	return -EIO;
94	}
95	buf[0] &= MAX3107_SPI_RX_DATA_MASK;
96	buf[1] &= MAX3107_SPI_RX_DATA_MASK;
97
98	/* Set GPIO to output */
99	buf[0] \|= (0x0001 << offset);
100	/* Set value */
101	if (value)
102	buf[1] \|= (0x0001 << offset);
103	else
104	buf[1] &= ~(0x0001 << offset);
105
106	/* Write new GPIO configuration and data register values */
107	buf[0] \|= (MAX3107_WRITE_BIT \| MAX3107_GPIOCFG_REG);
108	buf[1] \|= (MAX3107_WRITE_BIT \| MAX3107_GPIODATA_REG);
109	/* Perform SPI transfer */
110	if (max3107_rw(s, (u8 *)buf, NULL, 4)) {
111	dev_err(&s->spi->dev,
112	"SPI transfer for GPIO conf data w failed\n");
113	return -EIO;
114	}
115	return 0;
116	}
117
118	/* GPIO value query function */
119	static int max3107_gpio_get(struct gpio_chip *chip, unsigned offset)
120	{
121	struct max3107_port *s = container_of(chip, struct max3107_port, chip);
122	u16 buf[1]; /* Buffer for SPI transfer */
123
124	if (offset >= MAX3107_GPIO_COUNT) {
125	dev_err(&s->spi->dev, "Invalid GPIO\n");
126	return -EINVAL;
127	}
128
129	/* Read current GPIO data register */
130	buf[0] = MAX3107_GPIODATA_REG;
131	/* Perform SPI transfer */
132	if (max3107_rw(s, (u8 )buf, (u8 )buf, 2)) {
133	dev_err(&s->spi->dev, "SPI transfer GPIO data r failed\n");
134	return -EIO;
135	}
136	buf[0] &= MAX3107_SPI_RX_DATA_MASK;
137
138	/* Return value */
139	return buf[0] & (0x0001 << offset);
140	}
141
142	/* GPIO value set function */
143	static void max3107_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
144	{
145	struct max3107_port *s = container_of(chip, struct max3107_port, chip);
146	u16 buf[2]; /* Buffer for SPI transfers */
147
148	if (offset >= MAX3107_GPIO_COUNT) {
149	dev_err(&s->spi->dev, "Invalid GPIO\n");
150	return;
151	}
152
153	/* Read current GPIO configuration registers*/
154	buf[0] = MAX3107_GPIODATA_REG;
155	buf[1] = MAX3107_GPIOCFG_REG;
156	/* Perform SPI transfer */
157	if (max3107_rw(s, (u8 )buf, (u8 )buf, 4)) {
158	dev_err(&s->spi->dev,
159	"SPI transfer for GPIO data and config read failed\n");
160	return;
161	}
162	buf[0] &= MAX3107_SPI_RX_DATA_MASK;
163	buf[1] &= MAX3107_SPI_RX_DATA_MASK;
164
165	if (!(buf[1] & (0x0001 << offset))) {
166	/* Configured as input, can't set value */
167	dev_warn(&s->spi->dev,
168	"Trying to set value for input GPIO\n");
169	return;
170	}
171
172	/* Set value */
173	if (value)
174	buf[0] \|= (0x0001 << offset);
175	else
176	buf[0] &= ~(0x0001 << offset);
177
178	/* Write new GPIO data register value */
179	buf[0] \|= (MAX3107_WRITE_BIT \| MAX3107_GPIODATA_REG);
180	/* Perform SPI transfer */
181	if (max3107_rw(s, (u8 *)buf, NULL, 2))
182	dev_err(&s->spi->dev, "SPI transfer GPIO data w failed\n");
183	}
184
185	/* GPIO chip data */
186	static struct gpio_chip max3107_gpio_chip = {
187	.owner = THIS_MODULE,
188	.direction_input = max3107_gpio_direction_in,
189	.direction_output = max3107_gpio_direction_out,
190	.get = max3107_gpio_get,
191	.set = max3107_gpio_set,
192	.can_sleep = 1,
193	.base = MAX3107_GPIO_BASE,
194	.ngpio = MAX3107_GPIO_COUNT,
195	};
196
197	/**
198	* max3107_aava_reset - reset on AAVA systems
199	* @spi: The SPI device we are probing
200	*
201	* Reset the device ready for probing.
202	*/
203
204	static int max3107_aava_reset(struct spi_device *spi)
205	{
206	/* Reset the chip */
207	if (gpio_request(MAX3107_RESET_GPIO, "max3107")) {
208	pr_err("Requesting RESET GPIO failed\n");
209	return -EIO;
210	}
211	if (gpio_direction_output(MAX3107_RESET_GPIO, 0)) {
212	pr_err("Setting RESET GPIO to 0 failed\n");
213	gpio_free(MAX3107_RESET_GPIO);
214	return -EIO;
215	}
216	msleep(MAX3107_RESET_DELAY);
217	if (gpio_direction_output(MAX3107_RESET_GPIO, 1)) {
218	pr_err("Setting RESET GPIO to 1 failed\n");
219	gpio_free(MAX3107_RESET_GPIO);
220	return -EIO;
221	}
222	gpio_free(MAX3107_RESET_GPIO);
223	msleep(MAX3107_WAKEUP_DELAY);
224	return 0;
225	}
226
227	static int max3107_aava_configure(struct max3107_port *s)
228	{
229	int retval;
230
231	/* Initialize GPIO chip data */
232	s->chip = max3107_gpio_chip;
233	s->chip.label = s->spi->modalias;
234	s->chip.dev = &s->spi->dev;
235
236	/* Add GPIO chip */
237	retval = gpiochip_add(&s->chip);
238	if (retval) {
239	dev_err(&s->spi->dev, "Adding GPIO chip failed\n");
240	return retval;
241	}
242
243	/* Temporary fix for EV2 boot problems, set modem reset to 0 */
244	max3107_gpio_direction_out(&s->chip, 3, 0);
245	return 0;
246	}
247
248	#if 0
249	/* This will get enabled once we have the board stuff merged for this
250	specific case */
251
252	static const struct baud_table brg13_ext[] = {
253	{ 300, MAX3107_BRG13_B300 },
254	{ 600, MAX3107_BRG13_B600 },
255	{ 1200, MAX3107_BRG13_B1200 },
256	{ 2400, MAX3107_BRG13_B2400 },
257	{ 4800, MAX3107_BRG13_B4800 },
258	{ 9600, MAX3107_BRG13_B9600 },
259	{ 19200, MAX3107_BRG13_B19200 },
260	{ 57600, MAX3107_BRG13_B57600 },
261	{ 115200, MAX3107_BRG13_B115200 },
262	{ 230400, MAX3107_BRG13_B230400 },
263	{ 460800, MAX3107_BRG13_B460800 },
264	{ 921600, MAX3107_BRG13_B921600 },
265	{ 0, 0 }
266	};
267
268	static void max3107_aava_init(struct max3107_port *s)
269	{
270	/override for AAVA SC specific/
271	if (mrst_platform_id() == MRST_PLATFORM_AAVA_SC) {
272	if (get_koski_build_id() <= KOSKI_EV2)
273	if (s->ext_clk) {
274	s->brg_cfg = MAX3107_BRG13_B9600;
275	s->baud_tbl = (struct baud_table *)brg13_ext;
276	}
277	}
278	}
279	#endif
280
281	static int __devexit max3107_aava_remove(struct spi_device *spi)
282	{
283	struct max3107_port *s = dev_get_drvdata(&spi->dev);
284
285	/* Remove GPIO chip */
286	if (gpiochip_remove(&s->chip))
287	dev_warn(&spi->dev, "Removing GPIO chip failed\n");
288
289	/* Then do the default remove */
290	return max3107_remove(spi);
291	}
292
293	/* Platform data */
294	static struct max3107_plat aava_plat_data = {
295	.loopback = 0,
296	.ext_clk = 1,
297	/* .init = max3107_aava_init, */
298	.configure = max3107_aava_configure,
299	.hw_suspend = max3107_hw_susp,
300	.polled_mode = 0,
301	.poll_time = 0,
302	};
303
304
305	static int __devinit max3107_probe_aava(struct spi_device *spi)
306	{
307	int err = max3107_aava_reset(spi);
308	if (err < 0)
309	return err;
310	return max3107_probe(spi, &aava_plat_data);
311	}
312
313	/* Spi driver data */
314	static struct spi_driver max3107_driver = {
315	.driver = {
316	.name = "aava-max3107",
317	.bus = &spi_bus_type,
318	.owner = THIS_MODULE,
319	},
320	.probe = max3107_probe_aava,
321	.remove = __devexit_p(max3107_aava_remove),
322	.suspend = max3107_suspend,
323	.resume = max3107_resume,
324	};
325
326	/* Driver init function */
327	static int __init max3107_init(void)
328	{
329	return spi_register_driver(&max3107_driver);
330	}
331
332	/* Driver exit function */
333	static void __exit max3107_exit(void)
334	{
335	spi_unregister_driver(&max3107_driver);
336	}
337
338	module_init(max3107_init);
339	module_exit(max3107_exit);
340
341	MODULE_DESCRIPTION("MAX3107 driver");
342	MODULE_AUTHOR("Aavamobile");
343	MODULE_ALIAS("aava-max3107-spi");
344	MODULE_LICENSE("GPL v2");