[deliverable/linux.git] / drivers / regulator / mc13xxx-regulator-core.c

/*
 * Regulator Driver for Freescale MC13xxx PMIC
 *
 * Copyright 2010 Yong Shen <yong.shen@linaro.org>
 *
 * Based on mc13783 regulator driver :
 * Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
 * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.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.
 *
 * Regs infos taken from mc13xxx drivers from freescale and mc13xxx.pdf file
 * from freescale
 */

#include <linux/mfd/mc13xxx.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
#include "mc13xxx.h"

static int mc13xxx_regulator_enable(struct regulator_dev *rdev)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int id = rdev_get_id(rdev);
	int ret;

	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);

	mc13xxx_lock(priv->mc13xxx);
	ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].reg,
			mc13xxx_regulators[id].enable_bit,
			mc13xxx_regulators[id].enable_bit);
	mc13xxx_unlock(priv->mc13xxx);

	return ret;
}

static int mc13xxx_regulator_disable(struct regulator_dev *rdev)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int id = rdev_get_id(rdev);
	int ret;

	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);

	mc13xxx_lock(priv->mc13xxx);
	ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].reg,
			mc13xxx_regulators[id].enable_bit, 0);
	mc13xxx_unlock(priv->mc13xxx);

	return ret;
}

static int mc13xxx_regulator_is_enabled(struct regulator_dev *rdev)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int ret, id = rdev_get_id(rdev);
	unsigned int val;

	mc13xxx_lock(priv->mc13xxx);
	ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
	mc13xxx_unlock(priv->mc13xxx);

	if (ret)
		return ret;

	return (val & mc13xxx_regulators[id].enable_bit) != 0;
}

int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev,
						unsigned selector)
{
	int id = rdev_get_id(rdev);
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;

	if (selector >= mc13xxx_regulators[id].desc.n_voltages)
		return -EINVAL;

	return mc13xxx_regulators[id].voltages[selector];
}
EXPORT_SYMBOL_GPL(mc13xxx_regulator_list_voltage);

int mc13xxx_get_best_voltage_index(struct regulator_dev *rdev,
						int min_uV, int max_uV)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int reg_id = rdev_get_id(rdev);
	int i;
	int bestmatch;
	int bestindex;

	/*
	 * Locate the minimum voltage fitting the criteria on
	 * this regulator. The switchable voltages are not
	 * in strict falling order so we need to check them
	 * all for the best match.
	 */
	bestmatch = INT_MAX;
	bestindex = -1;
	for (i = 0; i < mc13xxx_regulators[reg_id].desc.n_voltages; i++) {
		if (mc13xxx_regulators[reg_id].voltages[i] >= min_uV &&
		    mc13xxx_regulators[reg_id].voltages[i] < bestmatch) {
			bestmatch = mc13xxx_regulators[reg_id].voltages[i];
			bestindex = i;
		}
	}

	if (bestindex < 0 || bestmatch > max_uV) {
		dev_warn(&rdev->dev, "no possible value for %d<=x<=%d uV\n",
				min_uV, max_uV);
		return -EINVAL;
	}
	return bestindex;
}
EXPORT_SYMBOL_GPL(mc13xxx_get_best_voltage_index);

static int mc13xxx_regulator_set_voltage(struct regulator_dev *rdev, int min_uV,
		int max_uV, unsigned *selector)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int value, id = rdev_get_id(rdev);
	int ret;

	dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
		__func__, id, min_uV, max_uV);

	/* Find the best index */
	value = mc13xxx_get_best_voltage_index(rdev, min_uV, max_uV);
	dev_dbg(rdev_get_dev(rdev), "%s best value: %d\n", __func__, value);
	if (value < 0)
		return value;

	mc13xxx_lock(priv->mc13xxx);
	ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].vsel_reg,
			mc13xxx_regulators[id].vsel_mask,
			value << mc13xxx_regulators[id].vsel_shift);
	mc13xxx_unlock(priv->mc13xxx);

	return ret;
}

static int mc13xxx_regulator_get_voltage(struct regulator_dev *rdev)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int ret, id = rdev_get_id(rdev);
	unsigned int val;

	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);

	mc13xxx_lock(priv->mc13xxx);
	ret = mc13xxx_reg_read(priv->mc13xxx,
				mc13xxx_regulators[id].vsel_reg, &val);
	mc13xxx_unlock(priv->mc13xxx);

	if (ret)
		return ret;

	val = (val & mc13xxx_regulators[id].vsel_mask)
		>> mc13xxx_regulators[id].vsel_shift;

	dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);

	BUG_ON(val >= mc13xxx_regulators[id].desc.n_voltages);

	return mc13xxx_regulators[id].voltages[val];
}

struct regulator_ops mc13xxx_regulator_ops = {
	.enable = mc13xxx_regulator_enable,
	.disable = mc13xxx_regulator_disable,
	.is_enabled = mc13xxx_regulator_is_enabled,
	.list_voltage = mc13xxx_regulator_list_voltage,
	.set_voltage = mc13xxx_regulator_set_voltage,
	.get_voltage = mc13xxx_regulator_get_voltage,
};
EXPORT_SYMBOL_GPL(mc13xxx_regulator_ops);

int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV,
	       int max_uV, unsigned *selector)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int id = rdev_get_id(rdev);

	dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
		__func__, id, min_uV, max_uV);

	if (min_uV >= mc13xxx_regulators[id].voltages[0] &&
	    max_uV <= mc13xxx_regulators[id].voltages[0])
		return 0;
	else
		return -EINVAL;
}
EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_set_voltage);

int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int id = rdev_get_id(rdev);

	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);

	return mc13xxx_regulators[id].voltages[0];
}
EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_get_voltage);

struct regulator_ops mc13xxx_fixed_regulator_ops = {
	.enable = mc13xxx_regulator_enable,
	.disable = mc13xxx_regulator_disable,
	.is_enabled = mc13xxx_regulator_is_enabled,
	.list_voltage = mc13xxx_regulator_list_voltage,
	.set_voltage = mc13xxx_fixed_regulator_set_voltage,
	.get_voltage = mc13xxx_fixed_regulator_get_voltage,
};
EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_ops);

int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev)
{
	return 1;
}
EXPORT_SYMBOL_GPL(mc13xxx_sw_regulator_is_enabled);

#ifdef CONFIG_OF
int __devinit mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
{
	struct device_node *parent, *child;
	int num = 0;

	of_node_get(pdev->dev.parent->of_node);
	parent = of_find_node_by_name(pdev->dev.parent->of_node, "regulators");
	if (!parent)
		return -ENODEV;

	for_each_child_of_node(parent, child)
		num++;

	return num;
}

struct mc13xxx_regulator_init_data * __devinit mc13xxx_parse_regulators_dt(
	struct platform_device *pdev, struct mc13xxx_regulator *regulators,
	int num_regulators)
{
	struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
	struct mc13xxx_regulator_init_data *data, *p;
	struct device_node *parent, *child;
	int i;

	of_node_get(pdev->dev.parent->of_node);
	parent = of_find_node_by_name(pdev->dev.parent->of_node, "regulators");
	if (!parent)
		return NULL;

	data = devm_kzalloc(&pdev->dev, sizeof(*data) * priv->num_regulators,
			    GFP_KERNEL);
	if (!data)
		return NULL;
	p = data;

	for_each_child_of_node(parent, child) {
		for (i = 0; i < num_regulators; i++) {
			if (!of_node_cmp(child->name,
					 regulators[i].desc.name)) {
				p->id = i;
				p->init_data = of_get_regulator_init_data(
							&pdev->dev, child);
				p->node = child;
				p++;
				break;
			}
		}
	}

	return data;
}
#endif

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Yong Shen <yong.shen@linaro.org>");
MODULE_DESCRIPTION("Regulator Driver for Freescale MC13xxx PMIC");
MODULE_ALIAS("mc13xxx-regulator-core");
Commit	Line	Data
167e3d8a YS	1	/*
	2	* Regulator Driver for Freescale MC13xxx PMIC
	3	*
	4	* Copyright 2010 Yong Shen <yong.shen@linaro.org>
	5	*
	6	* Based on mc13783 regulator driver :
	7	* Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
	8	* Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License version 2 as
	12	* published by the Free Software Foundation.
	13	*
	14	* Regs infos taken from mc13xxx drivers from freescale and mc13xxx.pdf file
	15	* from freescale
	16	*/
	17
	18	#include <linux/mfd/mc13xxx.h>
	19	#include <linux/regulator/machine.h>
	20	#include <linux/regulator/driver.h>
93bcb23b	21	#include <linux/regulator/of_regulator.h>
167e3d8a YS	22	#include <linux/platform_device.h>
	23	#include <linux/kernel.h>
	24	#include <linux/slab.h>
	25	#include <linux/init.h>
	26	#include <linux/err.h>
65602c32	27	#include <linux/module.h>
93bcb23b	28	#include <linux/of.h>
167e3d8a YS	29	#include "mc13xxx.h"
	30
	31	static int mc13xxx_regulator_enable(struct regulator_dev *rdev)
	32	{
	33	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	34	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	35	int id = rdev_get_id(rdev);
	36	int ret;
	37
	38	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
	39
	40	mc13xxx_lock(priv->mc13xxx);
	41	ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].reg,
	42	mc13xxx_regulators[id].enable_bit,
	43	mc13xxx_regulators[id].enable_bit);
	44	mc13xxx_unlock(priv->mc13xxx);
	45
	46	return ret;
	47	}
	48
	49	static int mc13xxx_regulator_disable(struct regulator_dev *rdev)
	50	{
	51	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	52	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	53	int id = rdev_get_id(rdev);
	54	int ret;
	55
	56	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
	57
	58	mc13xxx_lock(priv->mc13xxx);
	59	ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].reg,
	60	mc13xxx_regulators[id].enable_bit, 0);
	61	mc13xxx_unlock(priv->mc13xxx);
	62
	63	return ret;
	64	}
	65
	66	static int mc13xxx_regulator_is_enabled(struct regulator_dev *rdev)
	67	{
	68	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	69	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	70	int ret, id = rdev_get_id(rdev);
	71	unsigned int val;
	72
	73	mc13xxx_lock(priv->mc13xxx);
	74	ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
	75	mc13xxx_unlock(priv->mc13xxx);
	76
	77	if (ret)
	78	return ret;
	79
	80	return (val & mc13xxx_regulators[id].enable_bit) != 0;
	81	}
	82
	83	int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev,
	84	unsigned selector)
	85	{
	86	int id = rdev_get_id(rdev);
	87	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	88	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	89
	90	if (selector >= mc13xxx_regulators[id].desc.n_voltages)
	91	return -EINVAL;
	92
93	return mc13xxx_regulators[id].voltages[selector];
94	}
4d7071f1	95	EXPORT_SYMBOL_GPL(mc13xxx_regulator_list_voltage);
167e3d8a YS	96
	97	int mc13xxx_get_best_voltage_index(struct regulator_dev *rdev,
	98	int min_uV, int max_uV)
	99	{
	100	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	101	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	102	int reg_id = rdev_get_id(rdev);
	103	int i;
	104	int bestmatch;
	105	int bestindex;
	106
	107	/*
	108	* Locate the minimum voltage fitting the criteria on
	109	* this regulator. The switchable voltages are not
	110	* in strict falling order so we need to check them
	111	* all for the best match.
	112	*/
	113	bestmatch = INT_MAX;
	114	bestindex = -1;
	115	for (i = 0; i < mc13xxx_regulators[reg_id].desc.n_voltages; i++) {
	116	if (mc13xxx_regulators[reg_id].voltages[i] >= min_uV &&
	117	mc13xxx_regulators[reg_id].voltages[i] < bestmatch) {
	118	bestmatch = mc13xxx_regulators[reg_id].voltages[i];
	119	bestindex = i;
	120	}
	121	}
	122
	123	if (bestindex < 0 \|\| bestmatch > max_uV) {
	124	dev_warn(&rdev->dev, "no possible value for %d<=x<=%d uV\n",
	125	min_uV, max_uV);
	126	return -EINVAL;
	127	}
	128	return bestindex;
	129	}
4d7071f1	130	EXPORT_SYMBOL_GPL(mc13xxx_get_best_voltage_index);
167e3d8a YS	131
	132	static int mc13xxx_regulator_set_voltage(struct regulator_dev *rdev, int min_uV,
	133	int max_uV, unsigned *selector)
	134	{
	135	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	136	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	137	int value, id = rdev_get_id(rdev);
	138	int ret;
	139
	140	dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
	141	__func__, id, min_uV, max_uV);
	142
	143	/* Find the best index */
	144	value = mc13xxx_get_best_voltage_index(rdev, min_uV, max_uV);
	145	dev_dbg(rdev_get_dev(rdev), "%s best value: %d\n", __func__, value);
	146	if (value < 0)
	147	return value;
	148
	149	mc13xxx_lock(priv->mc13xxx);
	150	ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].vsel_reg,
	151	mc13xxx_regulators[id].vsel_mask,
	152	value << mc13xxx_regulators[id].vsel_shift);
	153	mc13xxx_unlock(priv->mc13xxx);
	154
	155	return ret;
	156	}
	157
	158	static int mc13xxx_regulator_get_voltage(struct regulator_dev *rdev)
	159	{
	160	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	161	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	162	int ret, id = rdev_get_id(rdev);
	163	unsigned int val;
	164
	165	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
	166
	167	mc13xxx_lock(priv->mc13xxx);
	168	ret = mc13xxx_reg_read(priv->mc13xxx,
	169	mc13xxx_regulators[id].vsel_reg, &val);
	170	mc13xxx_unlock(priv->mc13xxx);
	171
	172	if (ret)
	173	return ret;
	174
	175	val = (val & mc13xxx_regulators[id].vsel_mask)
	176	>> mc13xxx_regulators[id].vsel_shift;
	177
	178	dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
	179
3c24019d	180	BUG_ON(val >= mc13xxx_regulators[id].desc.n_voltages);
167e3d8a YS	181
	182	return mc13xxx_regulators[id].voltages[val];
	183	}
	184
	185	struct regulator_ops mc13xxx_regulator_ops = {
	186	.enable = mc13xxx_regulator_enable,
	187	.disable = mc13xxx_regulator_disable,
	188	.is_enabled = mc13xxx_regulator_is_enabled,
	189	.list_voltage = mc13xxx_regulator_list_voltage,
	190	.set_voltage = mc13xxx_regulator_set_voltage,
	191	.get_voltage = mc13xxx_regulator_get_voltage,
	192	};
4d7071f1	193	EXPORT_SYMBOL_GPL(mc13xxx_regulator_ops);
167e3d8a YS	194
	195	int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV,
	196	int max_uV, unsigned *selector)
	197	{
	198	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	199	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	200	int id = rdev_get_id(rdev);
	201
	202	dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
	203	__func__, id, min_uV, max_uV);
	204
	205	if (min_uV >= mc13xxx_regulators[id].voltages[0] &&
	206	max_uV <= mc13xxx_regulators[id].voltages[0])
	207	return 0;
	208	else
	209	return -EINVAL;
	210	}
4d7071f1	211	EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_set_voltage);
167e3d8a YS	212
	213	int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev)
	214	{
	215	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	216	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	217	int id = rdev_get_id(rdev);
	218
	219	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
	220
	221	return mc13xxx_regulators[id].voltages[0];
	222	}
4d7071f1	223	EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_get_voltage);
167e3d8a YS	224
	225	struct regulator_ops mc13xxx_fixed_regulator_ops = {
	226	.enable = mc13xxx_regulator_enable,
	227	.disable = mc13xxx_regulator_disable,
	228	.is_enabled = mc13xxx_regulator_is_enabled,
	229	.list_voltage = mc13xxx_regulator_list_voltage,
	230	.set_voltage = mc13xxx_fixed_regulator_set_voltage,
	231	.get_voltage = mc13xxx_fixed_regulator_get_voltage,
	232	};
4d7071f1	233	EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_ops);
167e3d8a YS	234
	235	int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev)
	236	{
	237	return 1;
	238	}
4d7071f1	239	EXPORT_SYMBOL_GPL(mc13xxx_sw_regulator_is_enabled);
167e3d8a	240
93bcb23b SG	241	#ifdef CONFIG_OF
	242	int __devinit mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
	243	{
	244	struct device_node parent, child;
	245	int num = 0;
	246
	247	of_node_get(pdev->dev.parent->of_node);
	248	parent = of_find_node_by_name(pdev->dev.parent->of_node, "regulators");
	249	if (!parent)
	250	return -ENODEV;
	251
	252	for_each_child_of_node(parent, child)
	253	num++;
	254
	255	return num;
	256	}
	257
	258	struct mc13xxx_regulator_init_data * __devinit mc13xxx_parse_regulators_dt(
	259	struct platform_device pdev, struct mc13xxx_regulator regulators,
	260	int num_regulators)
	261	{
	262	struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
	263	struct mc13xxx_regulator_init_data data, p;
	264	struct device_node parent, child;
	265	int i;
	266
	267	of_node_get(pdev->dev.parent->of_node);
	268	parent = of_find_node_by_name(pdev->dev.parent->of_node, "regulators");
	269	if (!parent)
	270	return NULL;
	271
	272	data = devm_kzalloc(&pdev->dev, sizeof(data) priv->num_regulators,
	273	GFP_KERNEL);
	274	if (!data)
	275	return NULL;
	276	p = data;
	277
	278	for_each_child_of_node(parent, child) {
	279	for (i = 0; i < num_regulators; i++) {
	280	if (!of_node_cmp(child->name,
	281	regulators[i].desc.name)) {
	282	p->id = i;
	283	p->init_data = of_get_regulator_init_data(
	284	&pdev->dev, child);
	285	p->node = child;
	286	p++;
	287	break;
	288	}
	289	}
	290	}
	291
	292	return data;
	293	}
	294	#endif
	295
167e3d8a YS	296	MODULE_LICENSE("GPL v2");
	297	MODULE_AUTHOR("Yong Shen <yong.shen@linaro.org>");
	298	MODULE_DESCRIPTION("Regulator Driver for Freescale MC13xxx PMIC");
	299	MODULE_ALIAS("mc13xxx-regulator-core");