1// SPDX-License-Identifier: GPL-2.0+
  2//
  3// max77693.c - Regulator driver for the Maxim 77693 and 77843
  4//
  5// Copyright (C) 2013-2015 Samsung Electronics
  6// Jonghwa Lee <jonghwa3.lee@samsung.com>
  7// Krzysztof Kozlowski <krzk@kernel.org>
  8//
  9// This driver is based on max77686.c
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 10
 11#include <linux/err.h>
 12#include <linux/slab.h>
 13#include <linux/platform_device.h>
 14#include <linux/module.h>
 15#include <linux/export.h>
 16#include <linux/regulator/driver.h>
 17#include <linux/regulator/machine.h>
 18#include <linux/mfd/max77693.h>
 19#include <linux/mfd/max77693-common.h>
 20#include <linux/mfd/max77693-private.h>
 21#include <linux/mfd/max77843-private.h>
 22#include <linux/regulator/of_regulator.h>
 23#include <linux/regmap.h>
 24
 25/*
 26 * ID for MAX77843 regulators.
 27 * There is no need for such for MAX77693.
 28 */
 29enum max77843_regulator_type {
 30	MAX77843_SAFEOUT1 = 0,
 31	MAX77843_SAFEOUT2,
 32	MAX77843_CHARGER,
 33
 34	MAX77843_NUM,
 35};
 36
 37/* Register differences between chargers: MAX77693 and MAX77843 */
 38struct chg_reg_data {
 39	unsigned int linear_reg;
 40	unsigned int linear_mask;
 41	unsigned int uA_step;
 42	unsigned int min_sel;
 43};
 44
 45/*
 46 * MAX77693 CHARGER regulator - Min : 20mA, Max : 2580mA, step : 20mA
 47 * 0x00, 0x01, 0x2, 0x03	= 60 mA
 48 * 0x04 ~ 0x7E			= (60 + (X - 3) * 20) mA
 49 * Actually for MAX77693 the driver manipulates the maximum input current,
 50 * not the fast charge current (output). This should be fixed.
 51 *
 52 * On MAX77843 the calculation formula is the same (except values).
 53 * Fortunately it properly manipulates the fast charge current.
 54 */
 55static int max77693_chg_get_current_limit(struct regulator_dev *rdev)
 56{
 57	const struct chg_reg_data *reg_data = rdev_get_drvdata(rdev);
 58	unsigned int chg_min_uA = rdev->constraints->min_uA;
 59	unsigned int chg_max_uA = rdev->constraints->max_uA;
 60	unsigned int reg, sel;
 61	unsigned int val;
 62	int ret;
 63
 64	ret = regmap_read(rdev->regmap, reg_data->linear_reg, &reg);
 65	if (ret < 0)
 66		return ret;
 67
 68	sel = reg & reg_data->linear_mask;
 69
 70	/* the first four codes for charger current are all 60mA */
 71	if (sel <= reg_data->min_sel)
 72		sel = 0;
 73	else
 74		sel -= reg_data->min_sel;
 75
 76	val = chg_min_uA + reg_data->uA_step * sel;
 77	if (val > chg_max_uA)
 78		return -EINVAL;
 79
 80	return val;
 81}
 82
 83static int max77693_chg_set_current_limit(struct regulator_dev *rdev,
 84						int min_uA, int max_uA)
 85{
 86	const struct chg_reg_data *reg_data = rdev_get_drvdata(rdev);
 87	unsigned int chg_min_uA = rdev->constraints->min_uA;
 88	int sel = 0;
 89
 90	while (chg_min_uA + reg_data->uA_step * sel < min_uA)
 91		sel++;
 92
 93	if (chg_min_uA + reg_data->uA_step * sel > max_uA)
 94		return -EINVAL;
 95
 96	/* the first four codes for charger current are all 60mA */
 97	sel += reg_data->min_sel;
 98
 99	return regmap_write(rdev->regmap, reg_data->linear_reg, sel);
100}
101/* end of CHARGER regulator ops */
102
103/* Returns regmap suitable for given regulator on chosen device */
104static struct regmap *max77693_get_regmap(enum max77693_types type,
105					  struct max77693_dev *max77693,
106					  int reg_id)
107{
108	if (type == TYPE_MAX77693)
109		return max77693->regmap;
110
111	/* Else: TYPE_MAX77843 */
112	switch (reg_id) {
113	case MAX77843_SAFEOUT1:
114	case MAX77843_SAFEOUT2:
115		return max77693->regmap;
116	case MAX77843_CHARGER:
117		return max77693->regmap_chg;
118	default:
119		return max77693->regmap;
120	}
121}
122
123static const unsigned int max77693_safeout_table[] = {
124	4850000,
125	4900000,
126	4950000,
127	3300000,
128};
129
130static const struct regulator_ops max77693_safeout_ops = {
131	.list_voltage		= regulator_list_voltage_table,
132	.is_enabled		= regulator_is_enabled_regmap,
133	.enable			= regulator_enable_regmap,
134	.disable		= regulator_disable_regmap,
135	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
136	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
137};
138
139static const struct regulator_ops max77693_charger_ops = {
140	.is_enabled		= regulator_is_enabled_regmap,
141	.enable			= regulator_enable_regmap,
142	.disable		= regulator_disable_regmap,
143	.get_current_limit	= max77693_chg_get_current_limit,
144	.set_current_limit	= max77693_chg_set_current_limit,
145};
146
147#define max77693_regulator_desc_esafeout(_num)	{		\
148	.name		= "ESAFEOUT"#_num,			\
149	.id		= MAX77693_ESAFEOUT##_num,		\
150	.of_match	= of_match_ptr("ESAFEOUT"#_num),	\
151	.regulators_node	= of_match_ptr("regulators"),	\
152	.n_voltages	= 4,					\
153	.ops		= &max77693_safeout_ops,		\
154	.type		= REGULATOR_VOLTAGE,			\
155	.owner		= THIS_MODULE,				\
156	.volt_table	= max77693_safeout_table,		\
157	.vsel_reg	= MAX77693_CHG_REG_SAFEOUT_CTRL,	\
158	.vsel_mask	= SAFEOUT_CTRL_SAFEOUT##_num##_MASK,	\
159	.enable_reg	= MAX77693_CHG_REG_SAFEOUT_CTRL,	\
160	.enable_mask	= SAFEOUT_CTRL_ENSAFEOUT##_num##_MASK ,	\
161}
162
163static const struct regulator_desc max77693_supported_regulators[] = {
164	max77693_regulator_desc_esafeout(1),
165	max77693_regulator_desc_esafeout(2),
166	{
167		.name = "CHARGER",
168		.id = MAX77693_CHARGER,
169		.of_match = of_match_ptr("CHARGER"),
170		.regulators_node = of_match_ptr("regulators"),
171		.ops = &max77693_charger_ops,
172		.type = REGULATOR_CURRENT,
173		.owner = THIS_MODULE,
174		.enable_reg = MAX77693_CHG_REG_CHG_CNFG_00,
175		.enable_mask = CHG_CNFG_00_CHG_MASK |
176				CHG_CNFG_00_BUCK_MASK,
177		.enable_val = CHG_CNFG_00_CHG_MASK | CHG_CNFG_00_BUCK_MASK,
178	},
179};
180
181static const struct chg_reg_data max77693_chg_reg_data = {
182	.linear_reg	= MAX77693_CHG_REG_CHG_CNFG_09,
183	.linear_mask	= CHG_CNFG_09_CHGIN_ILIM_MASK,
184	.uA_step	= 20000,
185	.min_sel	= 3,
186};
187
188#define	max77843_regulator_desc_esafeout(num)	{			\
189	.name		= "SAFEOUT" # num,				\
190	.id		= MAX77843_SAFEOUT ## num,			\
191	.ops		= &max77693_safeout_ops,			\
192	.of_match	= of_match_ptr("SAFEOUT" # num),		\
193	.regulators_node = of_match_ptr("regulators"),			\
194	.type		= REGULATOR_VOLTAGE,				\
195	.owner		= THIS_MODULE,					\
196	.n_voltages	= ARRAY_SIZE(max77693_safeout_table),		\
197	.volt_table	= max77693_safeout_table,			\
198	.enable_reg	= MAX77843_SYS_REG_SAFEOUTCTRL,			\
199	.enable_mask	= MAX77843_REG_SAFEOUTCTRL_ENSAFEOUT ## num,	\
200	.vsel_reg	= MAX77843_SYS_REG_SAFEOUTCTRL,			\
201	.vsel_mask	= MAX77843_REG_SAFEOUTCTRL_SAFEOUT ## num ## _MASK, \
202}
203
204static const struct regulator_desc max77843_supported_regulators[] = {
205	[MAX77843_SAFEOUT1] = max77843_regulator_desc_esafeout(1),
206	[MAX77843_SAFEOUT2] = max77843_regulator_desc_esafeout(2),
207	[MAX77843_CHARGER] = {
208		.name		= "CHARGER",
209		.id		= MAX77843_CHARGER,
210		.ops		= &max77693_charger_ops,
211		.of_match	= of_match_ptr("CHARGER"),
212		.regulators_node = of_match_ptr("regulators"),
213		.type		= REGULATOR_CURRENT,
214		.owner		= THIS_MODULE,
215		.enable_reg	= MAX77843_CHG_REG_CHG_CNFG_00,
216		.enable_mask	= MAX77843_CHG_MASK,
217		.enable_val	= MAX77843_CHG_MASK,
218	},
219};
220
221static const struct chg_reg_data max77843_chg_reg_data = {
222	.linear_reg	= MAX77843_CHG_REG_CHG_CNFG_02,
223	.linear_mask	= MAX77843_CHG_FAST_CHG_CURRENT_MASK,
224	.uA_step	= MAX77843_CHG_FAST_CHG_CURRENT_STEP,
225	.min_sel	= 2,
226};
227
228static int max77693_pmic_probe(struct platform_device *pdev)
229{
230	enum max77693_types type = platform_get_device_id(pdev)->driver_data;
231	struct max77693_dev *iodev = dev_get_drvdata(pdev->dev.parent);
232	const struct regulator_desc *regulators;
233	unsigned int regulators_size;
234	int i;
235	struct regulator_config config = { };
236
237	config.dev = iodev->dev;
238
239	switch (type) {
240	case TYPE_MAX77693:
241		regulators = max77693_supported_regulators;
242		regulators_size = ARRAY_SIZE(max77693_supported_regulators);
243		config.driver_data = (void *)&max77693_chg_reg_data;
244		break;
245	case TYPE_MAX77843:
246		regulators = max77843_supported_regulators;
247		regulators_size = ARRAY_SIZE(max77843_supported_regulators);
248		config.driver_data = (void *)&max77843_chg_reg_data;
249		break;
250	default:
251		dev_err(&pdev->dev, "Unsupported device type: %u\n", type);
252		return -ENODEV;
253	}
254
255	for (i = 0; i < regulators_size; i++) {
256		struct regulator_dev *rdev;
257
258		config.regmap = max77693_get_regmap(type, iodev,
259						    regulators[i].id);
260
261		rdev = devm_regulator_register(&pdev->dev,
262						&regulators[i], &config);
263		if (IS_ERR(rdev)) {
264			dev_err(&pdev->dev,
265				"Failed to initialize regulator-%d\n", i);
266			return PTR_ERR(rdev);
267		}
268	}
269
270	return 0;
271}
272
273static const struct platform_device_id max77693_pmic_id[] = {
274	{ "max77693-pmic", TYPE_MAX77693 },
275	{ "max77843-regulator", TYPE_MAX77843 },
276	{},
277};
278
279MODULE_DEVICE_TABLE(platform, max77693_pmic_id);
280
281static struct platform_driver max77693_pmic_driver = {
282	.driver = {
283		   .name = "max77693-pmic",
284		   },
285	.probe = max77693_pmic_probe,
286	.id_table = max77693_pmic_id,
287};
288
289static int __init max77693_pmic_init(void)
290{
291	return platform_driver_register(&max77693_pmic_driver);
292}
293subsys_initcall(max77693_pmic_init);
294
295static void __exit max77693_pmic_cleanup(void)
296{
297	platform_driver_unregister(&max77693_pmic_driver);
298}
299module_exit(max77693_pmic_cleanup);
300
301MODULE_DESCRIPTION("MAXIM 77693/77843 regulator driver");
302MODULE_AUTHOR("Jonghwa Lee <jonghwa3.lee@samsung.com>");
303MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>");
304MODULE_LICENSE("GPL");

  1/*
  2 * max77693.c - Regulator driver for the Maxim 77693 and 77843
  3 *
  4 * Copyright (C) 2013-2015 Samsung Electronics
  5 * Jonghwa Lee <jonghwa3.lee@samsung.com>
  6 * Krzysztof Kozlowski <krzk@kernel.org>
  7 *
  8 * This program is free software; you can redistribute it and/or modify
  9 * it under the terms of the GNU General Public License as published by
 10 * the Free Software Foundation; either version 2 of the License, or
 11 * (at your option) any later version.
 12 *
 13 * This program is distributed in the hope that it will be useful,
 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16 * GNU General Public License for more details.
 17 *
 18 * You should have received a copy of the GNU General Public License
 19 * along with this program; if not, write to the Free Software
 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 21 *
 22 * This driver is based on max77686.c
 23 */
 24
 25#include <linux/err.h>
 26#include <linux/slab.h>
 27#include <linux/platform_device.h>
 28#include <linux/module.h>
 29#include <linux/export.h>
 30#include <linux/regulator/driver.h>
 31#include <linux/regulator/machine.h>
 32#include <linux/mfd/max77693.h>
 33#include <linux/mfd/max77693-common.h>
 34#include <linux/mfd/max77693-private.h>
 35#include <linux/mfd/max77843-private.h>
 36#include <linux/regulator/of_regulator.h>
 37#include <linux/regmap.h>
 38
 39/*
 40 * ID for MAX77843 regulators.
 41 * There is no need for such for MAX77693.
 42 */
 43enum max77843_regulator_type {
 44	MAX77843_SAFEOUT1 = 0,
 45	MAX77843_SAFEOUT2,
 46	MAX77843_CHARGER,
 47
 48	MAX77843_NUM,
 49};
 50
 51/* Register differences between chargers: MAX77693 and MAX77843 */
 52struct chg_reg_data {
 53	unsigned int linear_reg;
 54	unsigned int linear_mask;
 55	unsigned int uA_step;
 56	unsigned int min_sel;
 57};
 58
 59/*
 60 * MAX77693 CHARGER regulator - Min : 20mA, Max : 2580mA, step : 20mA
 61 * 0x00, 0x01, 0x2, 0x03	= 60 mA
 62 * 0x04 ~ 0x7E			= (60 + (X - 3) * 20) mA
 63 * Actually for MAX77693 the driver manipulates the maximum input current,
 64 * not the fast charge current (output). This should be fixed.
 65 *
 66 * On MAX77843 the calculation formula is the same (except values).
 67 * Fortunately it properly manipulates the fast charge current.
 68 */
 69static int max77693_chg_get_current_limit(struct regulator_dev *rdev)
 70{
 71	const struct chg_reg_data *reg_data = rdev_get_drvdata(rdev);
 72	unsigned int chg_min_uA = rdev->constraints->min_uA;
 73	unsigned int chg_max_uA = rdev->constraints->max_uA;
 74	unsigned int reg, sel;
 75	unsigned int val;
 76	int ret;
 77
 78	ret = regmap_read(rdev->regmap, reg_data->linear_reg, &reg);
 79	if (ret < 0)
 80		return ret;
 81
 82	sel = reg & reg_data->linear_mask;
 83
 84	/* the first four codes for charger current are all 60mA */
 85	if (sel <= reg_data->min_sel)
 86		sel = 0;
 87	else
 88		sel -= reg_data->min_sel;
 89
 90	val = chg_min_uA + reg_data->uA_step * sel;
 91	if (val > chg_max_uA)
 92		return -EINVAL;
 93
 94	return val;
 95}
 96
 97static int max77693_chg_set_current_limit(struct regulator_dev *rdev,
 98						int min_uA, int max_uA)
 99{
100	const struct chg_reg_data *reg_data = rdev_get_drvdata(rdev);
101	unsigned int chg_min_uA = rdev->constraints->min_uA;
102	int sel = 0;
103
104	while (chg_min_uA + reg_data->uA_step * sel < min_uA)
105		sel++;
106
107	if (chg_min_uA + reg_data->uA_step * sel > max_uA)
108		return -EINVAL;
109
110	/* the first four codes for charger current are all 60mA */
111	sel += reg_data->min_sel;
112
113	return regmap_write(rdev->regmap, reg_data->linear_reg, sel);
114}
115/* end of CHARGER regulator ops */
116
117/* Returns regmap suitable for given regulator on chosen device */
118static struct regmap *max77693_get_regmap(enum max77693_types type,
119					  struct max77693_dev *max77693,
120					  int reg_id)
121{
122	if (type == TYPE_MAX77693)
123		return max77693->regmap;
124
125	/* Else: TYPE_MAX77843 */
126	switch (reg_id) {
127	case MAX77843_SAFEOUT1:
128	case MAX77843_SAFEOUT2:
129		return max77693->regmap;
130	case MAX77843_CHARGER:
131		return max77693->regmap_chg;
132	default:
133		return max77693->regmap;
134	}
135}
136
137static const unsigned int max77693_safeout_table[] = {
138	4850000,
139	4900000,
140	4950000,
141	3300000,
142};
143
144static const struct regulator_ops max77693_safeout_ops = {
145	.list_voltage		= regulator_list_voltage_table,
146	.is_enabled		= regulator_is_enabled_regmap,
147	.enable			= regulator_enable_regmap,
148	.disable		= regulator_disable_regmap,
149	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
150	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
151};
152
153static const struct regulator_ops max77693_charger_ops = {
154	.is_enabled		= regulator_is_enabled_regmap,
155	.enable			= regulator_enable_regmap,
156	.disable		= regulator_disable_regmap,
157	.get_current_limit	= max77693_chg_get_current_limit,
158	.set_current_limit	= max77693_chg_set_current_limit,
159};
160
161#define max77693_regulator_desc_esafeout(_num)	{		\
162	.name		= "ESAFEOUT"#_num,			\
163	.id		= MAX77693_ESAFEOUT##_num,		\
164	.of_match	= of_match_ptr("ESAFEOUT"#_num),	\
165	.regulators_node	= of_match_ptr("regulators"),	\
166	.n_voltages	= 4,					\
167	.ops		= &max77693_safeout_ops,		\
168	.type		= REGULATOR_VOLTAGE,			\
169	.owner		= THIS_MODULE,				\
170	.volt_table	= max77693_safeout_table,		\
171	.vsel_reg	= MAX77693_CHG_REG_SAFEOUT_CTRL,	\
172	.vsel_mask	= SAFEOUT_CTRL_SAFEOUT##_num##_MASK,	\
173	.enable_reg	= MAX77693_CHG_REG_SAFEOUT_CTRL,	\
174	.enable_mask	= SAFEOUT_CTRL_ENSAFEOUT##_num##_MASK ,	\
175}
176
177static const struct regulator_desc max77693_supported_regulators[] = {
178	max77693_regulator_desc_esafeout(1),
179	max77693_regulator_desc_esafeout(2),
180	{
181		.name = "CHARGER",
182		.id = MAX77693_CHARGER,
183		.of_match = of_match_ptr("CHARGER"),
184		.regulators_node = of_match_ptr("regulators"),
185		.ops = &max77693_charger_ops,
186		.type = REGULATOR_CURRENT,
187		.owner = THIS_MODULE,
188		.enable_reg = MAX77693_CHG_REG_CHG_CNFG_00,
189		.enable_mask = CHG_CNFG_00_CHG_MASK |
190				CHG_CNFG_00_BUCK_MASK,
191		.enable_val = CHG_CNFG_00_CHG_MASK | CHG_CNFG_00_BUCK_MASK,
192	},
193};
194
195static const struct chg_reg_data max77693_chg_reg_data = {
196	.linear_reg	= MAX77693_CHG_REG_CHG_CNFG_09,
197	.linear_mask	= CHG_CNFG_09_CHGIN_ILIM_MASK,
198	.uA_step	= 20000,
199	.min_sel	= 3,
200};
201
202#define	max77843_regulator_desc_esafeout(num)	{			\
203	.name		= "SAFEOUT" # num,				\
204	.id		= MAX77843_SAFEOUT ## num,			\
205	.ops		= &max77693_safeout_ops,			\
206	.of_match	= of_match_ptr("SAFEOUT" # num),		\
207	.regulators_node = of_match_ptr("regulators"),			\
208	.type		= REGULATOR_VOLTAGE,				\
209	.owner		= THIS_MODULE,					\
210	.n_voltages	= ARRAY_SIZE(max77693_safeout_table),		\
211	.volt_table	= max77693_safeout_table,			\
212	.enable_reg	= MAX77843_SYS_REG_SAFEOUTCTRL,			\
213	.enable_mask	= MAX77843_REG_SAFEOUTCTRL_ENSAFEOUT ## num,	\
214	.vsel_reg	= MAX77843_SYS_REG_SAFEOUTCTRL,			\
215	.vsel_mask	= MAX77843_REG_SAFEOUTCTRL_SAFEOUT ## num ## _MASK, \
216}
217
218static const struct regulator_desc max77843_supported_regulators[] = {
219	[MAX77843_SAFEOUT1] = max77843_regulator_desc_esafeout(1),
220	[MAX77843_SAFEOUT2] = max77843_regulator_desc_esafeout(2),
221	[MAX77843_CHARGER] = {
222		.name		= "CHARGER",
223		.id		= MAX77843_CHARGER,
224		.ops		= &max77693_charger_ops,
225		.of_match	= of_match_ptr("CHARGER"),
226		.regulators_node = of_match_ptr("regulators"),
227		.type		= REGULATOR_CURRENT,
228		.owner		= THIS_MODULE,
229		.enable_reg	= MAX77843_CHG_REG_CHG_CNFG_00,
230		.enable_mask	= MAX77843_CHG_MASK,
231		.enable_val	= MAX77843_CHG_MASK,
232	},
233};
234
235static const struct chg_reg_data max77843_chg_reg_data = {
236	.linear_reg	= MAX77843_CHG_REG_CHG_CNFG_02,
237	.linear_mask	= MAX77843_CHG_FAST_CHG_CURRENT_MASK,
238	.uA_step	= MAX77843_CHG_FAST_CHG_CURRENT_STEP,
239	.min_sel	= 2,
240};
241
242static int max77693_pmic_probe(struct platform_device *pdev)
243{
244	enum max77693_types type = platform_get_device_id(pdev)->driver_data;
245	struct max77693_dev *iodev = dev_get_drvdata(pdev->dev.parent);
246	const struct regulator_desc *regulators;
247	unsigned int regulators_size;
248	int i;
249	struct regulator_config config = { };
250
251	config.dev = iodev->dev;
252
253	switch (type) {
254	case TYPE_MAX77693:
255		regulators = max77693_supported_regulators;
256		regulators_size = ARRAY_SIZE(max77693_supported_regulators);
257		config.driver_data = (void *)&max77693_chg_reg_data;
258		break;
259	case TYPE_MAX77843:
260		regulators = max77843_supported_regulators;
261		regulators_size = ARRAY_SIZE(max77843_supported_regulators);
262		config.driver_data = (void *)&max77843_chg_reg_data;
263		break;
264	default:
265		dev_err(&pdev->dev, "Unsupported device type: %u\n", type);
266		return -ENODEV;
267	}
268
269	for (i = 0; i < regulators_size; i++) {
270		struct regulator_dev *rdev;
271
272		config.regmap = max77693_get_regmap(type, iodev,
273						    regulators[i].id);
274
275		rdev = devm_regulator_register(&pdev->dev,
276						&regulators[i], &config);
277		if (IS_ERR(rdev)) {
278			dev_err(&pdev->dev,
279				"Failed to initialize regulator-%d\n", i);
280			return PTR_ERR(rdev);
281		}
282	}
283
284	return 0;
285}
286
287static const struct platform_device_id max77693_pmic_id[] = {
288	{ "max77693-pmic", TYPE_MAX77693 },
289	{ "max77843-regulator", TYPE_MAX77843 },
290	{},
291};
292
293MODULE_DEVICE_TABLE(platform, max77693_pmic_id);
294
295static struct platform_driver max77693_pmic_driver = {
296	.driver = {
297		   .name = "max77693-pmic",
298		   },
299	.probe = max77693_pmic_probe,
300	.id_table = max77693_pmic_id,
301};
302
303static int __init max77693_pmic_init(void)
304{
305	return platform_driver_register(&max77693_pmic_driver);
306}
307subsys_initcall(max77693_pmic_init);
308
309static void __exit max77693_pmic_cleanup(void)
310{
311	platform_driver_unregister(&max77693_pmic_driver);
312}
313module_exit(max77693_pmic_cleanup);
314
315MODULE_DESCRIPTION("MAXIM 77693/77843 regulator driver");
316MODULE_AUTHOR("Jonghwa Lee <jonghwa3.lee@samsung.com>");
317MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>");
318MODULE_LICENSE("GPL");