[linux.git] / drivers / mfd / pcf50633-core.c

/* NXP PCF50633 Power Management Unit (PMU) driver
 *
 * (C) 2006-2008 by Openmoko, Inc.
 * Author: Harald Welte <[email protected]>
 * 	   Balaji Rao <[email protected]>
 * All rights reserved.
 *
 *  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.
 *
 */

#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/sysfs.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/slab.h>

#include <linux/mfd/pcf50633/core.h>

int pcf50633_irq_init(struct pcf50633 *pcf, int irq);
void pcf50633_irq_free(struct pcf50633 *pcf);
#ifdef CONFIG_PM
int pcf50633_irq_suspend(struct pcf50633 *pcf);
int pcf50633_irq_resume(struct pcf50633 *pcf);
#endif

static int __pcf50633_read(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
{
	int ret;

	ret = i2c_smbus_read_i2c_block_data(pcf->i2c_client, reg,
				num, data);
	if (ret < 0)
		dev_err(pcf->dev, "Error reading %d regs at %d\n", num, reg);

	return ret;
}

static int __pcf50633_write(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
{
	int ret;

	ret = i2c_smbus_write_i2c_block_data(pcf->i2c_client, reg,
				num, data);
	if (ret < 0)
		dev_err(pcf->dev, "Error writing %d regs at %d\n", num, reg);

	return ret;

}

/* Read a block of upto 32 regs  */
int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
					int nr_regs, u8 *data)
{
	int ret;

	mutex_lock(&pcf->lock);
	ret = __pcf50633_read(pcf, reg, nr_regs, data);
	mutex_unlock(&pcf->lock);

	return ret;
}
EXPORT_SYMBOL_GPL(pcf50633_read_block);

/* Write a block of upto 32 regs  */
int pcf50633_write_block(struct pcf50633 *pcf , u8 reg,
					int nr_regs, u8 *data)
{
	int ret;

	mutex_lock(&pcf->lock);
	ret = __pcf50633_write(pcf, reg, nr_regs, data);
	mutex_unlock(&pcf->lock);

	return ret;
}
EXPORT_SYMBOL_GPL(pcf50633_write_block);

u8 pcf50633_reg_read(struct pcf50633 *pcf, u8 reg)
{
	u8 val;

	mutex_lock(&pcf->lock);
	__pcf50633_read(pcf, reg, 1, &val);
	mutex_unlock(&pcf->lock);

	return val;
}
EXPORT_SYMBOL_GPL(pcf50633_reg_read);

int pcf50633_reg_write(struct pcf50633 *pcf, u8 reg, u8 val)
{
	int ret;

	mutex_lock(&pcf->lock);
	ret = __pcf50633_write(pcf, reg, 1, &val);
	mutex_unlock(&pcf->lock);

	return ret;
}
EXPORT_SYMBOL_GPL(pcf50633_reg_write);

int pcf50633_reg_set_bit_mask(struct pcf50633 *pcf, u8 reg, u8 mask, u8 val)
{
	int ret;
	u8 tmp;

	val &= mask;

	mutex_lock(&pcf->lock);
	ret = __pcf50633_read(pcf, reg, 1, &tmp);
	if (ret < 0)
		goto out;

	tmp &= ~mask;
	tmp |= val;
	ret = __pcf50633_write(pcf, reg, 1, &tmp);

out:
	mutex_unlock(&pcf->lock);

	return ret;
}
EXPORT_SYMBOL_GPL(pcf50633_reg_set_bit_mask);

int pcf50633_reg_clear_bits(struct pcf50633 *pcf, u8 reg, u8 val)
{
	int ret;
	u8 tmp;

	mutex_lock(&pcf->lock);
	ret = __pcf50633_read(pcf, reg, 1, &tmp);
	if (ret < 0)
		goto out;

	tmp &= ~val;
	ret = __pcf50633_write(pcf, reg, 1, &tmp);

out:
	mutex_unlock(&pcf->lock);

	return ret;
}
EXPORT_SYMBOL_GPL(pcf50633_reg_clear_bits);

/* sysfs attributes */
static ssize_t show_dump_regs(struct device *dev, struct device_attribute *attr,
			    char *buf)
{
	struct pcf50633 *pcf = dev_get_drvdata(dev);
	u8 dump[16];
	int n, n1, idx = 0;
	char *buf1 = buf;
	static u8 address_no_read[] = { /* must be ascending */
		PCF50633_REG_INT1,
		PCF50633_REG_INT2,
		PCF50633_REG_INT3,
		PCF50633_REG_INT4,
		PCF50633_REG_INT5,
		0 /* terminator */
	};

	for (n = 0; n < 256; n += sizeof(dump)) {
		for (n1 = 0; n1 < sizeof(dump); n1++)
			if (n == address_no_read[idx]) {
				idx++;
				dump[n1] = 0x00;
			} else
				dump[n1] = pcf50633_reg_read(pcf, n + n1);

		hex_dump_to_buffer(dump, sizeof(dump), 16, 1, buf1, 128, 0);
		buf1 += strlen(buf1);
		*buf1++ = '\n';
		*buf1 = '\0';
	}

	return buf1 - buf;
}
static DEVICE_ATTR(dump_regs, 0400, show_dump_regs, NULL);

static ssize_t show_resume_reason(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct pcf50633 *pcf = dev_get_drvdata(dev);
	int n;

	n = sprintf(buf, "%02x%02x%02x%02x%02x\n",
				pcf->resume_reason[0],
				pcf->resume_reason[1],
				pcf->resume_reason[2],
				pcf->resume_reason[3],
				pcf->resume_reason[4]);

	return n;
}
static DEVICE_ATTR(resume_reason, 0400, show_resume_reason, NULL);

static struct attribute *pcf_sysfs_entries[] = {
	&dev_attr_dump_regs.attr,
	&dev_attr_resume_reason.attr,
	NULL,
};

static struct attribute_group pcf_attr_group = {
	.name	= NULL,			/* put in device directory */
	.attrs	= pcf_sysfs_entries,
};

static void
pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name,
						struct platform_device **pdev)
{
	int ret;

	*pdev = platform_device_alloc(name, -1);
	if (!*pdev) {
		dev_err(pcf->dev, "Falied to allocate %s\n", name);
		return;
	}

	(*pdev)->dev.parent = pcf->dev;

	ret = platform_device_add(*pdev);
	if (ret) {
		dev_err(pcf->dev, "Failed to register %s: %d\n", name, ret);
		platform_device_put(*pdev);
		*pdev = NULL;
	}
}

#ifdef CONFIG_PM
static int pcf50633_suspend(struct i2c_client *client, pm_message_t state)
{
	struct pcf50633 *pcf;
	pcf = i2c_get_clientdata(client);

	return pcf50633_irq_suspend(pcf);
}

static int pcf50633_resume(struct i2c_client *client)
{
	struct pcf50633 *pcf;
	pcf = i2c_get_clientdata(client);

	return pcf50633_irq_resume(pcf);
}
#else
#define pcf50633_suspend NULL
#define pcf50633_resume NULL
#endif

static int __devinit pcf50633_probe(struct i2c_client *client,
				const struct i2c_device_id *ids)
{
	struct pcf50633 *pcf;
	struct pcf50633_platform_data *pdata = client->dev.platform_data;
	int i, ret;
	int version, variant;

	if (!client->irq) {
		dev_err(&client->dev, "Missing IRQ\n");
		return -ENOENT;
	}

	pcf = kzalloc(sizeof(*pcf), GFP_KERNEL);
	if (!pcf)
		return -ENOMEM;

	pcf->pdata = pdata;

	mutex_init(&pcf->lock);

	i2c_set_clientdata(client, pcf);
	pcf->dev = &client->dev;
	pcf->i2c_client = client;

	version = pcf50633_reg_read(pcf, 0);
	variant = pcf50633_reg_read(pcf, 1);
	if (version < 0 || variant < 0) {
		dev_err(pcf->dev, "Unable to probe pcf50633\n");
		ret = -ENODEV;
		goto err_free;
	}

	dev_info(pcf->dev, "Probed device version %d variant %d\n",
							version, variant);

	pcf50633_irq_init(pcf, client->irq);

	/* Create sub devices */
	pcf50633_client_dev_register(pcf, "pcf50633-input",
						&pcf->input_pdev);
	pcf50633_client_dev_register(pcf, "pcf50633-rtc",
						&pcf->rtc_pdev);
	pcf50633_client_dev_register(pcf, "pcf50633-mbc",
						&pcf->mbc_pdev);
	pcf50633_client_dev_register(pcf, "pcf50633-adc",
						&pcf->adc_pdev);
	pcf50633_client_dev_register(pcf, "pcf50633-backlight",
						&pcf->bl_pdev);


	for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
		struct platform_device *pdev;

		pdev = platform_device_alloc("pcf50633-regltr", i);
		if (!pdev) {
			dev_err(pcf->dev, "Cannot create regulator %d\n", i);
			continue;
		}

		pdev->dev.parent = pcf->dev;
		platform_device_add_data(pdev, &pdata->reg_init_data[i],
					sizeof(pdata->reg_init_data[i]));
		pcf->regulator_pdev[i] = pdev;

		platform_device_add(pdev);
	}

	ret = sysfs_create_group(&client->dev.kobj, &pcf_attr_group);
	if (ret)
		dev_err(pcf->dev, "error creating sysfs entries\n");

	if (pdata->probe_done)
		pdata->probe_done(pcf);

	return 0;

err_free:
	kfree(pcf);

	return ret;
}

static int __devexit pcf50633_remove(struct i2c_client *client)
{
	struct pcf50633 *pcf = i2c_get_clientdata(client);
	int i;

	pcf50633_irq_free(pcf);

	platform_device_unregister(pcf->input_pdev);
	platform_device_unregister(pcf->rtc_pdev);
	platform_device_unregister(pcf->mbc_pdev);
	platform_device_unregister(pcf->adc_pdev);

	for (i = 0; i < PCF50633_NUM_REGULATORS; i++)
		platform_device_unregister(pcf->regulator_pdev[i]);

	kfree(pcf);

	return 0;
}

static struct i2c_device_id pcf50633_id_table[] = {
	{"pcf50633", 0x73},
	{/* end of list */}
};

static struct i2c_driver pcf50633_driver = {
	.driver = {
		.name	= "pcf50633",
	},
	.id_table = pcf50633_id_table,
	.probe = pcf50633_probe,
	.remove = __devexit_p(pcf50633_remove),
	.suspend = pcf50633_suspend,
	.resume	= pcf50633_resume,
};

static int __init pcf50633_init(void)
{
	return i2c_add_driver(&pcf50633_driver);
}

static void __exit pcf50633_exit(void)
{
	i2c_del_driver(&pcf50633_driver);
}

MODULE_DESCRIPTION("I2C chip driver for NXP PCF50633 PMU");
MODULE_AUTHOR("Harald Welte <[email protected]>");
MODULE_LICENSE("GPL");

subsys_initcall(pcf50633_init);
module_exit(pcf50633_exit);
Commit	Line	Data
f52046b1 BR	1	/* NXP PCF50633 Power Management Unit (PMU) driver
	2	*
	3	* (C) 2006-2008 by Openmoko, Inc.
	4	* Author: Harald Welte <[email protected]>
	5	* Balaji Rao <[email protected]>
	6	* All rights reserved.
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
	12	*
	13	*/
	14
	15	#include <linux/kernel.h>
	16	#include <linux/device.h>
	17	#include <linux/sysfs.h>
f52046b1 BR	18	#include <linux/module.h>
	19	#include <linux/types.h>
	20	#include <linux/interrupt.h>
	21	#include <linux/workqueue.h>
	22	#include <linux/platform_device.h>
	23	#include <linux/i2c.h>
5a0e3ad6	24	#include <linux/slab.h>
f52046b1 BR	25
	26	#include <linux/mfd/pcf50633/core.h>
	27
380c09f6 LPC	28	int pcf50633_irq_init(struct pcf50633 *pcf, int irq);
	29	void pcf50633_irq_free(struct pcf50633 *pcf);
	30	#ifdef CONFIG_PM
	31	int pcf50633_irq_suspend(struct pcf50633 *pcf);
	32	int pcf50633_irq_resume(struct pcf50633 *pcf);
	33	#endif
f52046b1 BR	34
	35	static int __pcf50633_read(struct pcf50633 pcf, u8 reg, int num, u8 data)
	36	{
	37	int ret;
	38
	39	ret = i2c_smbus_read_i2c_block_data(pcf->i2c_client, reg,
	40	num, data);
	41	if (ret < 0)
	42	dev_err(pcf->dev, "Error reading %d regs at %d\n", num, reg);
	43
	44	return ret;
	45	}
	46
	47	static int __pcf50633_write(struct pcf50633 pcf, u8 reg, int num, u8 data)
	48	{
	49	int ret;
	50
	51	ret = i2c_smbus_write_i2c_block_data(pcf->i2c_client, reg,
	52	num, data);
	53	if (ret < 0)
	54	dev_err(pcf->dev, "Error writing %d regs at %d\n", num, reg);
	55
	56	return ret;
	57
	58	}
	59
	60	/* Read a block of upto 32 regs */
	61	int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
	62	int nr_regs, u8 *data)
	63	{
	64	int ret;
	65
	66	mutex_lock(&pcf->lock);
	67	ret = __pcf50633_read(pcf, reg, nr_regs, data);
	68	mutex_unlock(&pcf->lock);
	69
	70	return ret;
	71	}
	72	EXPORT_SYMBOL_GPL(pcf50633_read_block);
	73
	74	/* Write a block of upto 32 regs */
	75	int pcf50633_write_block(struct pcf50633 *pcf , u8 reg,
	76	int nr_regs, u8 *data)
	77	{
	78	int ret;
	79
	80	mutex_lock(&pcf->lock);
	81	ret = __pcf50633_write(pcf, reg, nr_regs, data);
	82	mutex_unlock(&pcf->lock);
	83
	84	return ret;
	85	}
	86	EXPORT_SYMBOL_GPL(pcf50633_write_block);
	87
	88	u8 pcf50633_reg_read(struct pcf50633 *pcf, u8 reg)
	89	{
	90	u8 val;
	91
	92	mutex_lock(&pcf->lock);
	93	__pcf50633_read(pcf, reg, 1, &val);
	94	mutex_unlock(&pcf->lock);
	95
	96	return val;
	97	}
98	EXPORT_SYMBOL_GPL(pcf50633_reg_read);
99
100	int pcf50633_reg_write(struct pcf50633 *pcf, u8 reg, u8 val)
101	{
102	int ret;
103
104	mutex_lock(&pcf->lock);
105	ret = __pcf50633_write(pcf, reg, 1, &val);
106	mutex_unlock(&pcf->lock);
107
108	return ret;
109	}
110	EXPORT_SYMBOL_GPL(pcf50633_reg_write);
111
112	int pcf50633_reg_set_bit_mask(struct pcf50633 *pcf, u8 reg, u8 mask, u8 val)
113	{
114	int ret;
115	u8 tmp;
116
117	val &= mask;
118
119	mutex_lock(&pcf->lock);
120	ret = __pcf50633_read(pcf, reg, 1, &tmp);
121	if (ret < 0)
122	goto out;
123
124	tmp &= ~mask;
125	tmp \|= val;
126	ret = __pcf50633_write(pcf, reg, 1, &tmp);
127
128	out:
129	mutex_unlock(&pcf->lock);
130
131	return ret;
132	}
133	EXPORT_SYMBOL_GPL(pcf50633_reg_set_bit_mask);
134
135	int pcf50633_reg_clear_bits(struct pcf50633 *pcf, u8 reg, u8 val)
136	{
137	int ret;
138	u8 tmp;
139
140	mutex_lock(&pcf->lock);
141	ret = __pcf50633_read(pcf, reg, 1, &tmp);
142	if (ret < 0)
143	goto out;
144
145	tmp &= ~val;
146	ret = __pcf50633_write(pcf, reg, 1, &tmp);
147
148	out:
149	mutex_unlock(&pcf->lock);
150
151	return ret;
152	}
153	EXPORT_SYMBOL_GPL(pcf50633_reg_clear_bits);
154
155	/* sysfs attributes */
156	static ssize_t show_dump_regs(struct device dev, struct device_attribute attr,
157	char *buf)
158	{
159	struct pcf50633 *pcf = dev_get_drvdata(dev);
160	u8 dump[16];
161	int n, n1, idx = 0;
162	char *buf1 = buf;
163	static u8 address_no_read[] = { /* must be ascending */
164	PCF50633_REG_INT1,
165	PCF50633_REG_INT2,
166	PCF50633_REG_INT3,
167	PCF50633_REG_INT4,
168	PCF50633_REG_INT5,
169	0 /* terminator */
170	};
171
172	for (n = 0; n < 256; n += sizeof(dump)) {
173	for (n1 = 0; n1 < sizeof(dump); n1++)
174	if (n == address_no_read[idx]) {
175	idx++;
176	dump[n1] = 0x00;
177	} else
178	dump[n1] = pcf50633_reg_read(pcf, n + n1);
179
180	hex_dump_to_buffer(dump, sizeof(dump), 16, 1, buf1, 128, 0);
181	buf1 += strlen(buf1);
182	*buf1++ = '\n';
183	*buf1 = '\0';
184	}
185
186	return buf1 - buf;
187	}
188	static DEVICE_ATTR(dump_regs, 0400, show_dump_regs, NULL);
189
190	static ssize_t show_resume_reason(struct device *dev,
191	struct device_attribute attr, char buf)
192	{
193	struct pcf50633 *pcf = dev_get_drvdata(dev);
194	int n;
195
196	n = sprintf(buf, "%02x%02x%02x%02x%02x\n",
197	pcf->resume_reason[0],
198	pcf->resume_reason[1],
199	pcf->resume_reason[2],
200	pcf->resume_reason[3],
201	pcf->resume_reason[4]);
202
203	return n;
204	}
205	static DEVICE_ATTR(resume_reason, 0400, show_resume_reason, NULL);
206
207	static struct attribute *pcf_sysfs_entries[] = {
208	&dev_attr_dump_regs.attr,
209	&dev_attr_resume_reason.attr,
210	NULL,
211	};
212
213	static struct attribute_group pcf_attr_group = {
214	.name = NULL, /* put in device directory */
215	.attrs = pcf_sysfs_entries,
216	};
217
f52046b1 BR	218	static void
	219	pcf50633_client_dev_register(struct pcf50633 pcf, const char name,
	220	struct platform_device **pdev)
	221	{
f52046b1 BR	222	int ret;
	223
	224	*pdev = platform_device_alloc(name, -1);
	225	if (!*pdev) {
	226	dev_err(pcf->dev, "Falied to allocate %s\n", name);
	227	return;
	228	}
	229
f52046b1 BR	230	(*pdev)->dev.parent = pcf->dev;
	231
	232	ret = platform_device_add(*pdev);
	233	if (ret) {
	234	dev_err(pcf->dev, "Failed to register %s: %d\n", name, ret);
	235	platform_device_put(*pdev);
	236	*pdev = NULL;
	237	}
	238	}
	239
	240	#ifdef CONFIG_PM
25993e4e	241	static int pcf50633_suspend(struct i2c_client *client, pm_message_t state)
f52046b1 BR	242	{
f52046b1 BR	243	struct pcf50633 *pcf;
25993e4e	244	pcf = i2c_get_clientdata(client);
f52046b1	245
380c09f6	246	return pcf50633_irq_suspend(pcf);
f52046b1 BR	247	}
f52046b1 BR	248
25993e4e	249	static int pcf50633_resume(struct i2c_client *client)
f52046b1 BR	250	{
f52046b1 BR	251	struct pcf50633 *pcf;
25993e4e	252	pcf = i2c_get_clientdata(client);
f52046b1	253
380c09f6	254	return pcf50633_irq_resume(pcf);
f52046b1 BR	255	}
	256	#else
	257	#define pcf50633_suspend NULL
	258	#define pcf50633_resume NULL
	259	#endif
	260
	261	static int __devinit pcf50633_probe(struct i2c_client *client,
	262	const struct i2c_device_id *ids)
	263	{
	264	struct pcf50633 *pcf;
	265	struct pcf50633_platform_data *pdata = client->dev.platform_data;
24213ae1	266	int i, ret;
f52046b1 BR	267	int version, variant;
f52046b1 BR	268
24213ae1 LPC	269	if (!client->irq) {
	270	dev_err(&client->dev, "Missing IRQ\n");
	271	return -ENOENT;
	272	}
	273
f52046b1 BR	274	pcf = kzalloc(sizeof(*pcf), GFP_KERNEL);
	275	if (!pcf)
	276	return -ENOMEM;
	277
	278	pcf->pdata = pdata;
	279
	280	mutex_init(&pcf->lock);
	281
	282	i2c_set_clientdata(client, pcf);
	283	pcf->dev = &client->dev;
	284	pcf->i2c_client = client;
f52046b1 BR	285
	286	version = pcf50633_reg_read(pcf, 0);
	287	variant = pcf50633_reg_read(pcf, 1);
	288	if (version < 0 \|\| variant < 0) {
	289	dev_err(pcf->dev, "Unable to probe pcf50633\n");
	290	ret = -ENODEV;
f7b2a77f	291	goto err_free;
f52046b1 BR	292	}
	293
	294	dev_info(pcf->dev, "Probed device version %d variant %d\n",
	295	version, variant);
	296
380c09f6	297	pcf50633_irq_init(pcf, client->irq);
24213ae1	298
f52046b1 BR	299	/* Create sub devices */
	300	pcf50633_client_dev_register(pcf, "pcf50633-input",
	301	&pcf->input_pdev);
	302	pcf50633_client_dev_register(pcf, "pcf50633-rtc",
	303	&pcf->rtc_pdev);
	304	pcf50633_client_dev_register(pcf, "pcf50633-mbc",
	305	&pcf->mbc_pdev);
	306	pcf50633_client_dev_register(pcf, "pcf50633-adc",
	307	&pcf->adc_pdev);
f5bf403a LPC	308	pcf50633_client_dev_register(pcf, "pcf50633-backlight",
	309	&pcf->bl_pdev);
	310
f52046b1 BR	311
	312	for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
	313	struct platform_device *pdev;
	314
	315	pdev = platform_device_alloc("pcf50633-regltr", i);
	316	if (!pdev) {
24213ae1	317	dev_err(pcf->dev, "Cannot create regulator %d\n", i);
f52046b1 BR	318	continue;
	319	}
	320
	321	pdev->dev.parent = pcf->dev;
bbb2e496 LPC	322	platform_device_add_data(pdev, &pdata->reg_init_data[i],
bbb2e496 LPC	323	sizeof(pdata->reg_init_data[i]));
f52046b1 BR	324	pcf->regulator_pdev[i] = pdev;
	325
	326	platform_device_add(pdev);
	327	}
	328
f52046b1 BR	329	ret = sysfs_create_group(&client->dev.kobj, &pcf_attr_group);
	330	if (ret)
	331	dev_err(pcf->dev, "error creating sysfs entries\n");
	332
	333	if (pdata->probe_done)
	334	pdata->probe_done(pcf);
	335
	336	return 0;
	337
24213ae1	338	err_free:
f52046b1	339	kfree(pcf);
24213ae1	340
f52046b1 BR	341	return ret;
	342	}
	343
	344	static int __devexit pcf50633_remove(struct i2c_client *client)
	345	{
	346	struct pcf50633 *pcf = i2c_get_clientdata(client);
	347	int i;
	348
380c09f6	349	pcf50633_irq_free(pcf);
f52046b1 BR	350
	351	platform_device_unregister(pcf->input_pdev);
	352	platform_device_unregister(pcf->rtc_pdev);
	353	platform_device_unregister(pcf->mbc_pdev);
	354	platform_device_unregister(pcf->adc_pdev);
	355
	356	for (i = 0; i < PCF50633_NUM_REGULATORS; i++)
	357	platform_device_unregister(pcf->regulator_pdev[i]);
	358
	359	kfree(pcf);
	360
	361	return 0;
	362	}
	363
	364	static struct i2c_device_id pcf50633_id_table[] = {
	365	{"pcf50633", 0x73},
8915e540	366	{/* end of list */}
f52046b1 BR	367	};
	368
	369	static struct i2c_driver pcf50633_driver = {
	370	.driver = {
	371	.name = "pcf50633",
f52046b1 BR	372	},
	373	.id_table = pcf50633_id_table,
	374	.probe = pcf50633_probe,
	375	.remove = __devexit_p(pcf50633_remove),
25993e4e LPC	376	.suspend = pcf50633_suspend,
25993e4e LPC	377	.resume = pcf50633_resume,
f52046b1 BR	378	};
	379
	380	static int __init pcf50633_init(void)
	381	{
	382	return i2c_add_driver(&pcf50633_driver);
	383	}
	384
	385	static void __exit pcf50633_exit(void)
	386	{
	387	i2c_del_driver(&pcf50633_driver);
	388	}
	389
	390	MODULE_DESCRIPTION("I2C chip driver for NXP PCF50633 PMU");
	391	MODULE_AUTHOR("Harald Welte <[email protected]>");
	392	MODULE_LICENSE("GPL");
	393
2021de87	394	subsys_initcall(pcf50633_init);
f52046b1	395	module_exit(pcf50633_exit);