[net-next-2.6.git] / drivers / regulator / virtual.c

/*
 * reg-virtual-consumer.c
 *
 * Copyright 2008 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 * 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/err.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>

struct virtual_consumer_data {
	struct mutex lock;
	struct regulator *regulator;
	bool enabled;
	int min_uV;
	int max_uV;
	int min_uA;
	int max_uA;
	unsigned int mode;
};

static void update_voltage_constraints(struct device *dev,
				       struct virtual_consumer_data *data)
{
	int ret;

	if (data->min_uV && data->max_uV
	    && data->min_uV <= data->max_uV) {
		dev_dbg(dev, "Requesting %d-%duV\n",
			data->min_uV, data->max_uV);
		ret = regulator_set_voltage(data->regulator,
					data->min_uV, data->max_uV);
		if (ret != 0) {
			dev_err(dev,
				"regulator_set_voltage() failed: %d\n", ret);
			return;
		}
	}

	if (data->min_uV && data->max_uV && !data->enabled) {
		dev_dbg(dev, "Enabling regulator\n");
		ret = regulator_enable(data->regulator);
		if (ret == 0)
			data->enabled = true;
		else
			dev_err(dev, "regulator_enable() failed: %d\n",
				ret);
	}

	if (!(data->min_uV && data->max_uV) && data->enabled) {
		dev_dbg(dev, "Disabling regulator\n");
		ret = regulator_disable(data->regulator);
		if (ret == 0)
			data->enabled = false;
		else
			dev_err(dev, "regulator_disable() failed: %d\n",
				ret);
	}
}

static void update_current_limit_constraints(struct device *dev,
					  struct virtual_consumer_data *data)
{
	int ret;

	if (data->max_uA
	    && data->min_uA <= data->max_uA) {
		dev_dbg(dev, "Requesting %d-%duA\n",
			data->min_uA, data->max_uA);
		ret = regulator_set_current_limit(data->regulator,
					data->min_uA, data->max_uA);
		if (ret != 0) {
			dev_err(dev,
				"regulator_set_current_limit() failed: %d\n",
				ret);
			return;
		}
	}

	if (data->max_uA && !data->enabled) {
		dev_dbg(dev, "Enabling regulator\n");
		ret = regulator_enable(data->regulator);
		if (ret == 0)
			data->enabled = true;
		else
			dev_err(dev, "regulator_enable() failed: %d\n",
				ret);
	}

	if (!(data->min_uA && data->max_uA) && data->enabled) {
		dev_dbg(dev, "Disabling regulator\n");
		ret = regulator_disable(data->regulator);
		if (ret == 0)
			data->enabled = false;
		else
			dev_err(dev, "regulator_disable() failed: %d\n",
				ret);
	}
}

static ssize_t show_min_uV(struct device *dev,
			   struct device_attribute *attr, char *buf)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", data->min_uV);
}

static ssize_t set_min_uV(struct device *dev, struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	long val;

	if (strict_strtol(buf, 10, &val) != 0)
		return count;

	mutex_lock(&data->lock);

	data->min_uV = val;
	update_voltage_constraints(dev, data);

	mutex_unlock(&data->lock);

	return count;
}

static ssize_t show_max_uV(struct device *dev,
			   struct device_attribute *attr, char *buf)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", data->max_uV);
}

static ssize_t set_max_uV(struct device *dev, struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	long val;

	if (strict_strtol(buf, 10, &val) != 0)
		return count;

	mutex_lock(&data->lock);

	data->max_uV = val;
	update_voltage_constraints(dev, data);

	mutex_unlock(&data->lock);

	return count;
}

static ssize_t show_min_uA(struct device *dev,
			   struct device_attribute *attr, char *buf)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", data->min_uA);
}

static ssize_t set_min_uA(struct device *dev, struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	long val;

	if (strict_strtol(buf, 10, &val) != 0)
		return count;

	mutex_lock(&data->lock);

	data->min_uA = val;
	update_current_limit_constraints(dev, data);

	mutex_unlock(&data->lock);

	return count;
}

static ssize_t show_max_uA(struct device *dev,
			   struct device_attribute *attr, char *buf)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", data->max_uA);
}

static ssize_t set_max_uA(struct device *dev, struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	long val;

	if (strict_strtol(buf, 10, &val) != 0)
		return count;

	mutex_lock(&data->lock);

	data->max_uA = val;
	update_current_limit_constraints(dev, data);

	mutex_unlock(&data->lock);

	return count;
}

static ssize_t show_mode(struct device *dev,
			 struct device_attribute *attr, char *buf)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);

	switch (data->mode) {
	case REGULATOR_MODE_FAST:
		return sprintf(buf, "fast\n");
	case REGULATOR_MODE_NORMAL:
		return sprintf(buf, "normal\n");
	case REGULATOR_MODE_IDLE:
		return sprintf(buf, "idle\n");
	case REGULATOR_MODE_STANDBY:
		return sprintf(buf, "standby\n");
	default:
		return sprintf(buf, "unknown\n");
	}
}

static ssize_t set_mode(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
{
	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	unsigned int mode;
	int ret;

	/*
	 * sysfs_streq() doesn't need the \n's, but we add them so the strings
	 * will be shared with show_mode(), above.
	 */
	if (sysfs_streq(buf, "fast\n"))
		mode = REGULATOR_MODE_FAST;
	else if (sysfs_streq(buf, "normal\n"))
		mode = REGULATOR_MODE_NORMAL;
	else if (sysfs_streq(buf, "idle\n"))
		mode = REGULATOR_MODE_IDLE;
	else if (sysfs_streq(buf, "standby\n"))
		mode = REGULATOR_MODE_STANDBY;
	else {
		dev_err(dev, "Configuring invalid mode\n");
		return count;
	}

	mutex_lock(&data->lock);
	ret = regulator_set_mode(data->regulator, mode);
	if (ret == 0)
		data->mode = mode;
	else
		dev_err(dev, "Failed to configure mode: %d\n", ret);
	mutex_unlock(&data->lock);

	return count;
}

static DEVICE_ATTR(min_microvolts, 0666, show_min_uV, set_min_uV);
static DEVICE_ATTR(max_microvolts, 0666, show_max_uV, set_max_uV);
static DEVICE_ATTR(min_microamps, 0666, show_min_uA, set_min_uA);
static DEVICE_ATTR(max_microamps, 0666, show_max_uA, set_max_uA);
static DEVICE_ATTR(mode, 0666, show_mode, set_mode);

static struct attribute *regulator_virtual_attributes[] = {
	&dev_attr_min_microvolts.attr,
	&dev_attr_max_microvolts.attr,
	&dev_attr_min_microamps.attr,
	&dev_attr_max_microamps.attr,
	&dev_attr_mode.attr,
	NULL
};

static const struct attribute_group regulator_virtual_attr_group = {
	.attrs	= regulator_virtual_attributes,
};

static int __devinit regulator_virtual_probe(struct platform_device *pdev)
{
	char *reg_id = pdev->dev.platform_data;
	struct virtual_consumer_data *drvdata;
	int ret;

	drvdata = kzalloc(sizeof(struct virtual_consumer_data), GFP_KERNEL);
	if (drvdata == NULL)
		return -ENOMEM;

	mutex_init(&drvdata->lock);

	drvdata->regulator = regulator_get(&pdev->dev, reg_id);
	if (IS_ERR(drvdata->regulator)) {
		ret = PTR_ERR(drvdata->regulator);
		dev_err(&pdev->dev, "Failed to obtain supply '%s': %d\n",
			reg_id, ret);
		goto err;
	}

	ret = sysfs_create_group(&pdev->dev.kobj,
				 &regulator_virtual_attr_group);
	if (ret != 0) {
		dev_err(&pdev->dev,
			"Failed to create attribute group: %d\n", ret);
		goto err_regulator;
	}

	drvdata->mode = regulator_get_mode(drvdata->regulator);

	platform_set_drvdata(pdev, drvdata);

	return 0;

err_regulator:
	regulator_put(drvdata->regulator);
err:
	kfree(drvdata);
	return ret;
}

static int __devexit regulator_virtual_remove(struct platform_device *pdev)
{
	struct virtual_consumer_data *drvdata = platform_get_drvdata(pdev);

	sysfs_remove_group(&pdev->dev.kobj, &regulator_virtual_attr_group);

	if (drvdata->enabled)
		regulator_disable(drvdata->regulator);
	regulator_put(drvdata->regulator);

	kfree(drvdata);

	platform_set_drvdata(pdev, NULL);

	return 0;
}

static struct platform_driver regulator_virtual_consumer_driver = {
	.probe		= regulator_virtual_probe,
	.remove		= __devexit_p(regulator_virtual_remove),
	.driver		= {
		.name		= "reg-virt-consumer",
		.owner		= THIS_MODULE,
	},
};

static int __init regulator_virtual_consumer_init(void)
{
	return platform_driver_register(&regulator_virtual_consumer_driver);
}
module_init(regulator_virtual_consumer_init);

static void __exit regulator_virtual_consumer_exit(void)
{
	platform_driver_unregister(&regulator_virtual_consumer_driver);
}
module_exit(regulator_virtual_consumer_exit);

MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("Virtual regulator consumer");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:reg-virt-consumer");
Commit	Line	Data
c080909e MB	1	/*
	2	* reg-virtual-consumer.c
	3	*
	4	* Copyright 2008 Wolfson Microelectronics PLC.
	5	*
	6	* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of the
	11	* License, or (at your option) any later version.
	12	*/
	13
	14	#include <linux/err.h>
	15	#include <linux/mutex.h>
	16	#include <linux/platform_device.h>
	17	#include <linux/regulator/consumer.h>
5a0e3ad6	18	#include <linux/slab.h>
c080909e MB	19
	20	struct virtual_consumer_data {
	21	struct mutex lock;
	22	struct regulator *regulator;
4cf95663	23	bool enabled;
c080909e MB	24	int min_uV;
	25	int max_uV;
	26	int min_uA;
	27	int max_uA;
	28	unsigned int mode;
	29	};
	30
a07ac217 MB	31	static void update_voltage_constraints(struct device *dev,
a07ac217 MB	32	struct virtual_consumer_data *data)
c080909e MB	33	{
	34	int ret;
	35
	36	if (data->min_uV && data->max_uV
	37	&& data->min_uV <= data->max_uV) {
a5d2abce MB	38	dev_dbg(dev, "Requesting %d-%duV\n",
a5d2abce MB	39	data->min_uV, data->max_uV);
c080909e	40	ret = regulator_set_voltage(data->regulator,
a07ac217	41	data->min_uV, data->max_uV);
c080909e	42	if (ret != 0) {
a07ac217 MB	43	dev_err(dev,
a07ac217 MB	44	"regulator_set_voltage() failed: %d\n", ret);
c080909e MB	45	return;
	46	}
	47	}
	48
	49	if (data->min_uV && data->max_uV && !data->enabled) {
a5d2abce	50	dev_dbg(dev, "Enabling regulator\n");
c080909e MB	51	ret = regulator_enable(data->regulator);
c080909e MB	52	if (ret == 0)
4cf95663	53	data->enabled = true;
c080909e	54	else
a07ac217	55	dev_err(dev, "regulator_enable() failed: %d\n",
c080909e MB	56	ret);
	57	}
	58
	59	if (!(data->min_uV && data->max_uV) && data->enabled) {
a5d2abce	60	dev_dbg(dev, "Disabling regulator\n");
c080909e MB	61	ret = regulator_disable(data->regulator);
c080909e MB	62	if (ret == 0)
4cf95663	63	data->enabled = false;
c080909e	64	else
a07ac217	65	dev_err(dev, "regulator_disable() failed: %d\n",
c080909e MB	66	ret);
	67	}
	68	}
	69
a07ac217 MB	70	static void update_current_limit_constraints(struct device *dev,
a07ac217 MB	71	struct virtual_consumer_data *data)
c080909e MB	72	{
	73	int ret;
	74
	75	if (data->max_uA
	76	&& data->min_uA <= data->max_uA) {
a5d2abce MB	77	dev_dbg(dev, "Requesting %d-%duA\n",
a5d2abce MB	78	data->min_uA, data->max_uA);
c080909e MB	79	ret = regulator_set_current_limit(data->regulator,
	80	data->min_uA, data->max_uA);
	81	if (ret != 0) {
a07ac217 MB	82	dev_err(dev,
	83	"regulator_set_current_limit() failed: %d\n",
	84	ret);
c080909e MB	85	return;
	86	}
	87	}
	88
	89	if (data->max_uA && !data->enabled) {
a5d2abce	90	dev_dbg(dev, "Enabling regulator\n");
c080909e MB	91	ret = regulator_enable(data->regulator);
c080909e MB	92	if (ret == 0)
4cf95663	93	data->enabled = true;
c080909e	94	else
a07ac217	95	dev_err(dev, "regulator_enable() failed: %d\n",
c080909e MB	96	ret);
	97	}
	98
	99	if (!(data->min_uA && data->max_uA) && data->enabled) {
a5d2abce	100	dev_dbg(dev, "Disabling regulator\n");
c080909e MB	101	ret = regulator_disable(data->regulator);
c080909e MB	102	if (ret == 0)
4cf95663	103	data->enabled = false;
c080909e	104	else
a07ac217	105	dev_err(dev, "regulator_disable() failed: %d\n",
c080909e MB	106	ret);
	107	}
	108	}
	109
	110	static ssize_t show_min_uV(struct device *dev,
	111	struct device_attribute attr, char buf)
	112	{
	113	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	114	return sprintf(buf, "%d\n", data->min_uV);
	115	}
	116
	117	static ssize_t set_min_uV(struct device dev, struct device_attribute attr,
	118	const char *buf, size_t count)
	119	{
	120	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	121	long val;
	122
	123	if (strict_strtol(buf, 10, &val) != 0)
	124	return count;
	125
	126	mutex_lock(&data->lock);
	127
	128	data->min_uV = val;
a07ac217	129	update_voltage_constraints(dev, data);
c080909e MB	130
	131	mutex_unlock(&data->lock);
	132
	133	return count;
	134	}
	135
	136	static ssize_t show_max_uV(struct device *dev,
	137	struct device_attribute attr, char buf)
	138	{
	139	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	140	return sprintf(buf, "%d\n", data->max_uV);
	141	}
	142
	143	static ssize_t set_max_uV(struct device dev, struct device_attribute attr,
	144	const char *buf, size_t count)
	145	{
	146	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	147	long val;
	148
	149	if (strict_strtol(buf, 10, &val) != 0)
	150	return count;
	151
	152	mutex_lock(&data->lock);
	153
	154	data->max_uV = val;
a07ac217	155	update_voltage_constraints(dev, data);
c080909e MB	156
	157	mutex_unlock(&data->lock);
	158
	159	return count;
	160	}
	161
	162	static ssize_t show_min_uA(struct device *dev,
	163	struct device_attribute attr, char buf)
	164	{
	165	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	166	return sprintf(buf, "%d\n", data->min_uA);
	167	}
	168
	169	static ssize_t set_min_uA(struct device dev, struct device_attribute attr,
	170	const char *buf, size_t count)
	171	{
	172	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	173	long val;
	174
	175	if (strict_strtol(buf, 10, &val) != 0)
	176	return count;
	177
	178	mutex_lock(&data->lock);
	179
	180	data->min_uA = val;
a07ac217	181	update_current_limit_constraints(dev, data);
c080909e MB	182
	183	mutex_unlock(&data->lock);
	184
	185	return count;
	186	}
	187
	188	static ssize_t show_max_uA(struct device *dev,
	189	struct device_attribute attr, char buf)
	190	{
	191	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	192	return sprintf(buf, "%d\n", data->max_uA);
	193	}
	194
	195	static ssize_t set_max_uA(struct device dev, struct device_attribute attr,
	196	const char *buf, size_t count)
	197	{
	198	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	199	long val;
	200
	201	if (strict_strtol(buf, 10, &val) != 0)
	202	return count;
	203
	204	mutex_lock(&data->lock);
	205
	206	data->max_uA = val;
a07ac217	207	update_current_limit_constraints(dev, data);
c080909e MB	208
	209	mutex_unlock(&data->lock);
	210
	211	return count;
	212	}
	213
	214	static ssize_t show_mode(struct device *dev,
	215	struct device_attribute attr, char buf)
	216	{
	217	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	218
	219	switch (data->mode) {
	220	case REGULATOR_MODE_FAST:
	221	return sprintf(buf, "fast\n");
	222	case REGULATOR_MODE_NORMAL:
	223	return sprintf(buf, "normal\n");
	224	case REGULATOR_MODE_IDLE:
	225	return sprintf(buf, "idle\n");
	226	case REGULATOR_MODE_STANDBY:
	227	return sprintf(buf, "standby\n");
	228	default:
	229	return sprintf(buf, "unknown\n");
	230	}
	231	}
	232
	233	static ssize_t set_mode(struct device dev, struct device_attribute attr,
	234	const char *buf, size_t count)
	235	{
	236	struct virtual_consumer_data *data = dev_get_drvdata(dev);
	237	unsigned int mode;
	238	int ret;
	239
9485397a AM	240	/*
	241	* sysfs_streq() doesn't need the \n's, but we add them so the strings
	242	* will be shared with show_mode(), above.
	243	*/
aa61d558	244	if (sysfs_streq(buf, "fast\n"))
c080909e	245	mode = REGULATOR_MODE_FAST;
aa61d558	246	else if (sysfs_streq(buf, "normal\n"))
c080909e	247	mode = REGULATOR_MODE_NORMAL;
aa61d558	248	else if (sysfs_streq(buf, "idle\n"))
c080909e	249	mode = REGULATOR_MODE_IDLE;
aa61d558	250	else if (sysfs_streq(buf, "standby\n"))
c080909e MB	251	mode = REGULATOR_MODE_STANDBY;
	252	else {
	253	dev_err(dev, "Configuring invalid mode\n");
	254	return count;
	255	}
	256
	257	mutex_lock(&data->lock);
	258	ret = regulator_set_mode(data->regulator, mode);
	259	if (ret == 0)
	260	data->mode = mode;
	261	else
	262	dev_err(dev, "Failed to configure mode: %d\n", ret);
	263	mutex_unlock(&data->lock);
	264
	265	return count;
	266	}
	267
	268	static DEVICE_ATTR(min_microvolts, 0666, show_min_uV, set_min_uV);
	269	static DEVICE_ATTR(max_microvolts, 0666, show_max_uV, set_max_uV);
	270	static DEVICE_ATTR(min_microamps, 0666, show_min_uA, set_min_uA);
	271	static DEVICE_ATTR(max_microamps, 0666, show_max_uA, set_max_uA);
	272	static DEVICE_ATTR(mode, 0666, show_mode, set_mode);
	273
4cf95663 DT	274	static struct attribute *regulator_virtual_attributes[] = {
	275	&dev_attr_min_microvolts.attr,
	276	&dev_attr_max_microvolts.attr,
	277	&dev_attr_min_microamps.attr,
	278	&dev_attr_max_microamps.attr,
	279	&dev_attr_mode.attr,
	280	NULL
c080909e MB	281	};
c080909e MB	282
4cf95663 DT	283	static const struct attribute_group regulator_virtual_attr_group = {
	284	.attrs = regulator_virtual_attributes,
	285	};
	286
	287	static int __devinit regulator_virtual_probe(struct platform_device *pdev)
c080909e MB	288	{
	289	char *reg_id = pdev->dev.platform_data;
	290	struct virtual_consumer_data *drvdata;
4cf95663	291	int ret;
c080909e MB	292
c080909e MB	293	drvdata = kzalloc(sizeof(struct virtual_consumer_data), GFP_KERNEL);
4cf95663	294	if (drvdata == NULL)
72b86876	295	return -ENOMEM;
c080909e MB	296
	297	mutex_init(&drvdata->lock);
	298
	299	drvdata->regulator = regulator_get(&pdev->dev, reg_id);
	300	if (IS_ERR(drvdata->regulator)) {
	301	ret = PTR_ERR(drvdata->regulator);
d61c3d56 MB	302	dev_err(&pdev->dev, "Failed to obtain supply '%s': %d\n",
d61c3d56 MB	303	reg_id, ret);
c080909e MB	304	goto err;
	305	}
	306
4cf95663 DT	307	ret = sysfs_create_group(&pdev->dev.kobj,
	308	&regulator_virtual_attr_group);
	309	if (ret != 0) {
	310	dev_err(&pdev->dev,
	311	"Failed to create attribute group: %d\n", ret);
	312	goto err_regulator;
c080909e MB	313	}
	314
	315	drvdata->mode = regulator_get_mode(drvdata->regulator);
	316
	317	platform_set_drvdata(pdev, drvdata);
	318
	319	return 0;
	320
72b86876 MB	321	err_regulator:
72b86876 MB	322	regulator_put(drvdata->regulator);
c080909e	323	err:
c080909e MB	324	kfree(drvdata);
	325	return ret;
	326	}
	327
4cf95663	328	static int __devexit regulator_virtual_remove(struct platform_device *pdev)
c080909e MB	329	{
c080909e MB	330	struct virtual_consumer_data *drvdata = platform_get_drvdata(pdev);
c080909e	331
4cf95663 DT	332	sysfs_remove_group(&pdev->dev.kobj, &regulator_virtual_attr_group);
4cf95663 DT	333
c080909e MB	334	if (drvdata->enabled)
	335	regulator_disable(drvdata->regulator);
	336	regulator_put(drvdata->regulator);
	337
	338	kfree(drvdata);
	339
4cf95663 DT	340	platform_set_drvdata(pdev, NULL);
4cf95663 DT	341
c080909e MB	342	return 0;
	343	}
	344
	345	static struct platform_driver regulator_virtual_consumer_driver = {
4cf95663 DT	346	.probe = regulator_virtual_probe,
4cf95663 DT	347	.remove = __devexit_p(regulator_virtual_remove),
c080909e MB	348	.driver = {
c080909e MB	349	.name = "reg-virt-consumer",
4cf95663	350	.owner = THIS_MODULE,
c080909e MB	351	},
	352	};
	353
c080909e MB	354	static int __init regulator_virtual_consumer_init(void)
	355	{
	356	return platform_driver_register(&regulator_virtual_consumer_driver);
	357	}
	358	module_init(regulator_virtual_consumer_init);
	359
	360	static void __exit regulator_virtual_consumer_exit(void)
	361	{
	362	platform_driver_unregister(&regulator_virtual_consumer_driver);
	363	}
	364	module_exit(regulator_virtual_consumer_exit);
	365
	366	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	367	MODULE_DESCRIPTION("Virtual regulator consumer");
	368	MODULE_LICENSE("GPL");
38c53c89	369	MODULE_ALIAS("platform:reg-virt-consumer");