summaryrefslogtreecommitdiff
path: root/drivers/mfd/da9063-i2c.c
blob: 343ed6e96d87e55102c1e8a0eb56b3ab1978a306 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
// SPDX-License-Identifier: GPL-2.0+
/* I2C support for Dialog DA9063
 *
 * Copyright 2012 Dialog Semiconductor Ltd.
 * Copyright 2013 Philipp Zabel, Pengutronix
 *
 * Author: Krystian Garbaciak, Dialog Semiconductor
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/err.h>

#include <linux/mfd/core.h>
#include <linux/mfd/da9063/core.h>
#include <linux/mfd/da9063/registers.h>

#include <linux/of.h>
#include <linux/regulator/of_regulator.h>

/*
 * Raw I2C access required for just accessing chip and variant info before we
 * know which device is present. The info read from the device using this
 * approach is then used to select the correct regmap tables.
 */

#define DA9063_REG_PAGE_SIZE		0x100
#define DA9063_REG_PAGED_ADDR_MASK	0xFF

enum da9063_page_sel_buf_fmt {
	DA9063_PAGE_SEL_BUF_PAGE_REG = 0,
	DA9063_PAGE_SEL_BUF_PAGE_VAL,
	DA9063_PAGE_SEL_BUF_SIZE,
};

enum da9063_paged_read_msgs {
	DA9063_PAGED_READ_MSG_PAGE_SEL = 0,
	DA9063_PAGED_READ_MSG_REG_SEL,
	DA9063_PAGED_READ_MSG_DATA,
	DA9063_PAGED_READ_MSG_CNT,
};

static int da9063_i2c_blockreg_read(struct i2c_client *client, u16 addr,
				    u8 *buf, int count)
{
	struct i2c_msg xfer[DA9063_PAGED_READ_MSG_CNT];
	u8 page_sel_buf[DA9063_PAGE_SEL_BUF_SIZE];
	u8 page_num, paged_addr;
	int ret;

	/* Determine page info based on register address */
	page_num = (addr / DA9063_REG_PAGE_SIZE);
	if (page_num > 1) {
		dev_err(&client->dev, "Invalid register address provided\n");
		return -EINVAL;
	}

	paged_addr = (addr % DA9063_REG_PAGE_SIZE) & DA9063_REG_PAGED_ADDR_MASK;
	page_sel_buf[DA9063_PAGE_SEL_BUF_PAGE_REG] = DA9063_REG_PAGE_CON;
	page_sel_buf[DA9063_PAGE_SEL_BUF_PAGE_VAL] =
		(page_num << DA9063_I2C_PAGE_SEL_SHIFT) & DA9063_REG_PAGE_MASK;

	/* Write reg address, page selection */
	xfer[DA9063_PAGED_READ_MSG_PAGE_SEL].addr = client->addr;
	xfer[DA9063_PAGED_READ_MSG_PAGE_SEL].flags = 0;
	xfer[DA9063_PAGED_READ_MSG_PAGE_SEL].len = DA9063_PAGE_SEL_BUF_SIZE;
	xfer[DA9063_PAGED_READ_MSG_PAGE_SEL].buf = page_sel_buf;

	/* Select register address */
	xfer[DA9063_PAGED_READ_MSG_REG_SEL].addr = client->addr;
	xfer[DA9063_PAGED_READ_MSG_REG_SEL].flags = 0;
	xfer[DA9063_PAGED_READ_MSG_REG_SEL].len = sizeof(paged_addr);
	xfer[DA9063_PAGED_READ_MSG_REG_SEL].buf = &paged_addr;

	/* Read data */
	xfer[DA9063_PAGED_READ_MSG_DATA].addr = client->addr;
	xfer[DA9063_PAGED_READ_MSG_DATA].flags = I2C_M_RD;
	xfer[DA9063_PAGED_READ_MSG_DATA].len = count;
	xfer[DA9063_PAGED_READ_MSG_DATA].buf = buf;

	ret = i2c_transfer(client->adapter, xfer, DA9063_PAGED_READ_MSG_CNT);
	if (ret < 0) {
		dev_err(&client->dev, "Paged block read failed: %d\n", ret);
		return ret;
	}

	if (ret != DA9063_PAGED_READ_MSG_CNT) {
		dev_err(&client->dev, "Paged block read failed to complete\n");
		return -EIO;
	}

	return 0;
}

enum {
	DA9063_DEV_ID_REG = 0,
	DA9063_VAR_ID_REG,
	DA9063_CHIP_ID_REGS,
};

static int da9063_get_device_type(struct i2c_client *i2c, struct da9063 *da9063)
{
	u8 buf[DA9063_CHIP_ID_REGS];
	int ret;

	ret = da9063_i2c_blockreg_read(i2c, DA9063_REG_DEVICE_ID, buf,
				       DA9063_CHIP_ID_REGS);
	if (ret)
		return ret;

	if (buf[DA9063_DEV_ID_REG] != PMIC_CHIP_ID_DA9063) {
		dev_err(da9063->dev,
			"Invalid chip device ID: 0x%02x\n",
			buf[DA9063_DEV_ID_REG]);
		return -ENODEV;
	}

	dev_info(da9063->dev,
		 "Device detected (chip-ID: 0x%02X, var-ID: 0x%02X)\n",
		 buf[DA9063_DEV_ID_REG], buf[DA9063_VAR_ID_REG]);

	da9063->variant_code =
		(buf[DA9063_VAR_ID_REG] & DA9063_VARIANT_ID_MRC_MASK)
		>> DA9063_VARIANT_ID_MRC_SHIFT;

	return 0;
}

/*
 * Variant specific regmap configs
 */

static const struct regmap_range da9063_ad_readable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_AD_REG_SECOND_D),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_AD_REG_GP_ID_19),
	regmap_reg_range(DA9063_REG_DEVICE_ID, DA9063_REG_VARIANT_ID),
};

static const struct regmap_range da9063_ad_writeable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
	regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
	regmap_reg_range(DA9063_REG_COUNT_S, DA9063_AD_REG_ALARM_Y),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_AD_REG_MON_REG_4),
	regmap_reg_range(DA9063_AD_REG_GP_ID_0, DA9063_AD_REG_GP_ID_19),
};

static const struct regmap_range da9063_ad_volatile_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
	regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
	regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
	regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
	regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
	regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_AD_REG_SECOND_D),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
	regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
	regmap_reg_range(DA9063_AD_REG_MON_REG_5, DA9063_AD_REG_MON_REG_6),
};

static const struct regmap_access_table da9063_ad_readable_table = {
	.yes_ranges = da9063_ad_readable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063_ad_readable_ranges),
};

static const struct regmap_access_table da9063_ad_writeable_table = {
	.yes_ranges = da9063_ad_writeable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063_ad_writeable_ranges),
};

static const struct regmap_access_table da9063_ad_volatile_table = {
	.yes_ranges = da9063_ad_volatile_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063_ad_volatile_ranges),
};

static const struct regmap_range da9063_bb_readable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_BB_REG_SECOND_D),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_BB_REG_GP_ID_19),
	regmap_reg_range(DA9063_REG_DEVICE_ID, DA9063_REG_VARIANT_ID),
};

static const struct regmap_range da9063_bb_writeable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
	regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
	regmap_reg_range(DA9063_REG_COUNT_S, DA9063_BB_REG_ALARM_Y),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_BB_REG_MON_REG_4),
	regmap_reg_range(DA9063_BB_REG_GP_ID_0, DA9063_BB_REG_GP_ID_19),
};

static const struct regmap_range da9063_bb_da_volatile_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
	regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
	regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
	regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
	regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
	regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_BB_REG_SECOND_D),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
	regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
	regmap_reg_range(DA9063_BB_REG_MON_REG_5, DA9063_BB_REG_MON_REG_6),
};

static const struct regmap_access_table da9063_bb_readable_table = {
	.yes_ranges = da9063_bb_readable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063_bb_readable_ranges),
};

static const struct regmap_access_table da9063_bb_writeable_table = {
	.yes_ranges = da9063_bb_writeable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063_bb_writeable_ranges),
};

static const struct regmap_access_table da9063_bb_da_volatile_table = {
	.yes_ranges = da9063_bb_da_volatile_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063_bb_da_volatile_ranges),
};

static const struct regmap_range da9063l_bb_readable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_MON_A10_RES),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_BB_REG_GP_ID_19),
	regmap_reg_range(DA9063_REG_DEVICE_ID, DA9063_REG_VARIANT_ID),
};

static const struct regmap_range da9063l_bb_writeable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
	regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_BB_REG_MON_REG_4),
	regmap_reg_range(DA9063_BB_REG_GP_ID_0, DA9063_BB_REG_GP_ID_19),
};

static const struct regmap_range da9063l_bb_da_volatile_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
	regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
	regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
	regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
	regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
	regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_REG_MON_A10_RES),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
	regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
	regmap_reg_range(DA9063_BB_REG_MON_REG_5, DA9063_BB_REG_MON_REG_6),
};

static const struct regmap_access_table da9063l_bb_readable_table = {
	.yes_ranges = da9063l_bb_readable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063l_bb_readable_ranges),
};

static const struct regmap_access_table da9063l_bb_writeable_table = {
	.yes_ranges = da9063l_bb_writeable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063l_bb_writeable_ranges),
};

static const struct regmap_access_table da9063l_bb_da_volatile_table = {
	.yes_ranges = da9063l_bb_da_volatile_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063l_bb_da_volatile_ranges),
};

static const struct regmap_range da9063_da_readable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_BB_REG_SECOND_D),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_BB_REG_GP_ID_11),
	regmap_reg_range(DA9063_REG_DEVICE_ID, DA9063_REG_VARIANT_ID),
};

static const struct regmap_range da9063_da_writeable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
	regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
	regmap_reg_range(DA9063_REG_COUNT_S, DA9063_BB_REG_ALARM_Y),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_BB_REG_MON_REG_4),
	regmap_reg_range(DA9063_BB_REG_GP_ID_0, DA9063_BB_REG_GP_ID_11),
};

static const struct regmap_access_table da9063_da_readable_table = {
	.yes_ranges = da9063_da_readable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063_da_readable_ranges),
};

static const struct regmap_access_table da9063_da_writeable_table = {
	.yes_ranges = da9063_da_writeable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063_da_writeable_ranges),
};

static const struct regmap_range da9063l_da_readable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_MON_A10_RES),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_BB_REG_GP_ID_11),
	regmap_reg_range(DA9063_REG_DEVICE_ID, DA9063_REG_VARIANT_ID),
};

static const struct regmap_range da9063l_da_writeable_ranges[] = {
	regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
	regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
	regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
	regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
	regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_BB_REG_MON_REG_4),
	regmap_reg_range(DA9063_BB_REG_GP_ID_0, DA9063_BB_REG_GP_ID_11),
};

static const struct regmap_access_table da9063l_da_readable_table = {
	.yes_ranges = da9063l_da_readable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063l_da_readable_ranges),
};

static const struct regmap_access_table da9063l_da_writeable_table = {
	.yes_ranges = da9063l_da_writeable_ranges,
	.n_yes_ranges = ARRAY_SIZE(da9063l_da_writeable_ranges),
};

static const struct regmap_range_cfg da9063_range_cfg[] = {
	{
		.range_min = DA9063_REG_PAGE_CON,
		.range_max = DA9063_REG_CONFIG_ID,
		.selector_reg = DA9063_REG_PAGE_CON,
		.selector_mask = 1 << DA9063_I2C_PAGE_SEL_SHIFT,
		.selector_shift = DA9063_I2C_PAGE_SEL_SHIFT,
		.window_start = 0,
		.window_len = 256,
	}
};

static struct regmap_config da9063_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.ranges = da9063_range_cfg,
	.num_ranges = ARRAY_SIZE(da9063_range_cfg),
	.max_register = DA9063_REG_CONFIG_ID,

	.cache_type = REGCACHE_RBTREE,
};

static const struct of_device_id da9063_dt_ids[] = {
	{ .compatible = "dlg,da9063", },
	{ .compatible = "dlg,da9063l", },
	{ }
};
MODULE_DEVICE_TABLE(of, da9063_dt_ids);
static int da9063_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct da9063 *da9063;
	int ret;

	da9063 = devm_kzalloc(&i2c->dev, sizeof(struct da9063), GFP_KERNEL);
	if (da9063 == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, da9063);
	da9063->dev = &i2c->dev;
	da9063->chip_irq = i2c->irq;
	da9063->type = id->driver_data;

	ret = da9063_get_device_type(i2c, da9063);
	if (ret)
		return ret;

	switch (da9063->type) {
	case PMIC_TYPE_DA9063:
		switch (da9063->variant_code) {
		case PMIC_DA9063_AD:
			da9063_regmap_config.rd_table =
				&da9063_ad_readable_table;
			da9063_regmap_config.wr_table =
				&da9063_ad_writeable_table;
			da9063_regmap_config.volatile_table =
				&da9063_ad_volatile_table;
			break;
		case PMIC_DA9063_BB:
		case PMIC_DA9063_CA:
			da9063_regmap_config.rd_table =
				&da9063_bb_readable_table;
			da9063_regmap_config.wr_table =
				&da9063_bb_writeable_table;
			da9063_regmap_config.volatile_table =
				&da9063_bb_da_volatile_table;
			break;
		case PMIC_DA9063_DA:
		case PMIC_DA9063_EA:
			da9063_regmap_config.rd_table =
				&da9063_da_readable_table;
			da9063_regmap_config.wr_table =
				&da9063_da_writeable_table;
			da9063_regmap_config.volatile_table =
				&da9063_bb_da_volatile_table;
			break;
		default:
			dev_err(da9063->dev,
				"Chip variant not supported for DA9063\n");
			return -ENODEV;
		}
		break;
	case PMIC_TYPE_DA9063L:
		switch (da9063->variant_code) {
		case PMIC_DA9063_BB:
		case PMIC_DA9063_CA:
			da9063_regmap_config.rd_table =
				&da9063l_bb_readable_table;
			da9063_regmap_config.wr_table =
				&da9063l_bb_writeable_table;
			da9063_regmap_config.volatile_table =
				&da9063l_bb_da_volatile_table;
			break;
		case PMIC_DA9063_DA:
		case PMIC_DA9063_EA:
			da9063_regmap_config.rd_table =
				&da9063l_da_readable_table;
			da9063_regmap_config.wr_table =
				&da9063l_da_writeable_table;
			da9063_regmap_config.volatile_table =
				&da9063l_bb_da_volatile_table;
			break;
		default:
			dev_err(da9063->dev,
				"Chip variant not supported for DA9063L\n");
			return -ENODEV;
		}
		break;
	default:
		dev_err(da9063->dev, "Chip type not supported\n");
		return -ENODEV;
	}

	da9063->regmap = devm_regmap_init_i2c(i2c, &da9063_regmap_config);
	if (IS_ERR(da9063->regmap)) {
		ret = PTR_ERR(da9063->regmap);
		dev_err(da9063->dev, "Failed to allocate register map: %d\n",
			ret);
		return ret;
	}

	/* If SMBus is not available and only I2C is possible, enter I2C mode */
	if (i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C)) {
		ret = regmap_clear_bits(da9063->regmap, DA9063_REG_CONFIG_J,
					DA9063_TWOWIRE_TO);
		if (ret < 0) {
			dev_err(da9063->dev, "Failed to set Two-Wire Bus Mode.\n");
			return ret;
		}
	}

	return da9063_device_init(da9063, i2c->irq);
}

static const struct i2c_device_id da9063_i2c_id[] = {
	{ "da9063", PMIC_TYPE_DA9063 },
	{ "da9063l", PMIC_TYPE_DA9063L },
	{},
};
MODULE_DEVICE_TABLE(i2c, da9063_i2c_id);

static struct i2c_driver da9063_i2c_driver = {
	.driver = {
		.name = "da9063",
		.of_match_table = da9063_dt_ids,
	},
	.probe    = da9063_i2c_probe,
	.id_table = da9063_i2c_id,
};

module_i2c_driver(da9063_i2c_driver);