summaryrefslogtreecommitdiffstats
path: root/drivers/mfd/intel_soc_pmic_bxtwc.c
blob: ba32cacfc499f3774656187390dd8f96d6ff378f (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
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
// SPDX-License-Identifier: GPL-2.0
/*
 * MFD core driver for Intel Broxton Whiskey Cove PMIC
 *
 * Copyright (C) 2015-2017, 2022 Intel Corporation. All rights reserved.
 */

#include <linux/acpi.h>
#include <linux/bits.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mfd/core.h>
#include <linux/mfd/intel_soc_pmic.h>
#include <linux/mfd/intel_soc_pmic_bxtwc.h>
#include <linux/module.h>

#include <asm/intel_scu_ipc.h>

/* PMIC device registers */
#define REG_ADDR_MASK		GENMASK(15, 8)
#define REG_ADDR_SHIFT		8
#define REG_OFFSET_MASK		GENMASK(7, 0)

/* Interrupt Status Registers */
#define BXTWC_IRQLVL1		0x4E02

#define BXTWC_PWRBTNIRQ		0x4E03
#define BXTWC_THRM0IRQ		0x4E04
#define BXTWC_THRM1IRQ		0x4E05
#define BXTWC_THRM2IRQ		0x4E06
#define BXTWC_BCUIRQ		0x4E07
#define BXTWC_ADCIRQ		0x4E08
#define BXTWC_CHGR0IRQ		0x4E09
#define BXTWC_CHGR1IRQ		0x4E0A
#define BXTWC_GPIOIRQ0		0x4E0B
#define BXTWC_GPIOIRQ1		0x4E0C
#define BXTWC_CRITIRQ		0x4E0D
#define BXTWC_TMUIRQ		0x4FB6

/* Interrupt MASK Registers */
#define BXTWC_MIRQLVL1		0x4E0E
#define BXTWC_MIRQLVL1_MCHGR	BIT(5)

#define BXTWC_MPWRBTNIRQ	0x4E0F
#define BXTWC_MTHRM0IRQ		0x4E12
#define BXTWC_MTHRM1IRQ		0x4E13
#define BXTWC_MTHRM2IRQ		0x4E14
#define BXTWC_MBCUIRQ		0x4E15
#define BXTWC_MADCIRQ		0x4E16
#define BXTWC_MCHGR0IRQ		0x4E17
#define BXTWC_MCHGR1IRQ		0x4E18
#define BXTWC_MGPIO0IRQ		0x4E19
#define BXTWC_MGPIO1IRQ		0x4E1A
#define BXTWC_MCRITIRQ		0x4E1B
#define BXTWC_MTMUIRQ		0x4FB7

/* Whiskey Cove PMIC share same ACPI ID between different platforms */
#define BROXTON_PMIC_WC_HRV	4

#define PMC_PMIC_ACCESS		0xFF
#define PMC_PMIC_READ		0x0
#define PMC_PMIC_WRITE		0x1

enum bxtwc_irqs {
	BXTWC_PWRBTN_LVL1_IRQ = 0,
	BXTWC_TMU_LVL1_IRQ,
	BXTWC_THRM_LVL1_IRQ,
	BXTWC_BCU_LVL1_IRQ,
	BXTWC_ADC_LVL1_IRQ,
	BXTWC_CHGR_LVL1_IRQ,
	BXTWC_GPIO_LVL1_IRQ,
	BXTWC_CRIT_LVL1_IRQ,
};

enum bxtwc_irqs_pwrbtn {
	BXTWC_PWRBTN_IRQ = 0,
	BXTWC_UIBTN_IRQ,
};

enum bxtwc_irqs_bcu {
	BXTWC_BCU_IRQ = 0,
};

enum bxtwc_irqs_adc {
	BXTWC_ADC_IRQ = 0,
};

enum bxtwc_irqs_chgr {
	BXTWC_USBC_IRQ = 0,
	BXTWC_CHGR0_IRQ,
	BXTWC_CHGR1_IRQ,
};

enum bxtwc_irqs_tmu {
	BXTWC_TMU_IRQ = 0,
};

enum bxtwc_irqs_crit {
	BXTWC_CRIT_IRQ = 0,
};

static const struct regmap_irq bxtwc_regmap_irqs[] = {
	REGMAP_IRQ_REG(BXTWC_PWRBTN_LVL1_IRQ, 0, BIT(0)),
	REGMAP_IRQ_REG(BXTWC_TMU_LVL1_IRQ, 0, BIT(1)),
	REGMAP_IRQ_REG(BXTWC_THRM_LVL1_IRQ, 0, BIT(2)),
	REGMAP_IRQ_REG(BXTWC_BCU_LVL1_IRQ, 0, BIT(3)),
	REGMAP_IRQ_REG(BXTWC_ADC_LVL1_IRQ, 0, BIT(4)),
	REGMAP_IRQ_REG(BXTWC_CHGR_LVL1_IRQ, 0, BIT(5)),
	REGMAP_IRQ_REG(BXTWC_GPIO_LVL1_IRQ, 0, BIT(6)),
	REGMAP_IRQ_REG(BXTWC_CRIT_LVL1_IRQ, 0, BIT(7)),
};

static const struct regmap_irq bxtwc_regmap_irqs_pwrbtn[] = {
	REGMAP_IRQ_REG(BXTWC_PWRBTN_IRQ, 0, BIT(0)),
};

static const struct regmap_irq bxtwc_regmap_irqs_bcu[] = {
	REGMAP_IRQ_REG(BXTWC_BCU_IRQ, 0, GENMASK(4, 0)),
};

static const struct regmap_irq bxtwc_regmap_irqs_adc[] = {
	REGMAP_IRQ_REG(BXTWC_ADC_IRQ, 0, GENMASK(7, 0)),
};

static const struct regmap_irq bxtwc_regmap_irqs_chgr[] = {
	REGMAP_IRQ_REG(BXTWC_USBC_IRQ, 0, BIT(5)),
	REGMAP_IRQ_REG(BXTWC_CHGR0_IRQ, 0, GENMASK(4, 0)),
	REGMAP_IRQ_REG(BXTWC_CHGR1_IRQ, 1, GENMASK(4, 0)),
};

static const struct regmap_irq bxtwc_regmap_irqs_tmu[] = {
	REGMAP_IRQ_REG(BXTWC_TMU_IRQ, 0, GENMASK(2, 1)),
};

static const struct regmap_irq bxtwc_regmap_irqs_crit[] = {
	REGMAP_IRQ_REG(BXTWC_CRIT_IRQ, 0, GENMASK(1, 0)),
};

static struct regmap_irq_chip bxtwc_regmap_irq_chip = {
	.name = "bxtwc_irq_chip",
	.status_base = BXTWC_IRQLVL1,
	.mask_base = BXTWC_MIRQLVL1,
	.irqs = bxtwc_regmap_irqs,
	.num_irqs = ARRAY_SIZE(bxtwc_regmap_irqs),
	.num_regs = 1,
};

static struct regmap_irq_chip bxtwc_regmap_irq_chip_pwrbtn = {
	.name = "bxtwc_irq_chip_pwrbtn",
	.status_base = BXTWC_PWRBTNIRQ,
	.mask_base = BXTWC_MPWRBTNIRQ,
	.irqs = bxtwc_regmap_irqs_pwrbtn,
	.num_irqs = ARRAY_SIZE(bxtwc_regmap_irqs_pwrbtn),
	.num_regs = 1,
};

static struct regmap_irq_chip bxtwc_regmap_irq_chip_tmu = {
	.name = "bxtwc_irq_chip_tmu",
	.status_base = BXTWC_TMUIRQ,
	.mask_base = BXTWC_MTMUIRQ,
	.irqs = bxtwc_regmap_irqs_tmu,
	.num_irqs = ARRAY_SIZE(bxtwc_regmap_irqs_tmu),
	.num_regs = 1,
};

static struct regmap_irq_chip bxtwc_regmap_irq_chip_bcu = {
	.name = "bxtwc_irq_chip_bcu",
	.status_base = BXTWC_BCUIRQ,
	.mask_base = BXTWC_MBCUIRQ,
	.irqs = bxtwc_regmap_irqs_bcu,
	.num_irqs = ARRAY_SIZE(bxtwc_regmap_irqs_bcu),
	.num_regs = 1,
};

static struct regmap_irq_chip bxtwc_regmap_irq_chip_adc = {
	.name = "bxtwc_irq_chip_adc",
	.status_base = BXTWC_ADCIRQ,
	.mask_base = BXTWC_MADCIRQ,
	.irqs = bxtwc_regmap_irqs_adc,
	.num_irqs = ARRAY_SIZE(bxtwc_regmap_irqs_adc),
	.num_regs = 1,
};

static struct regmap_irq_chip bxtwc_regmap_irq_chip_chgr = {
	.name = "bxtwc_irq_chip_chgr",
	.status_base = BXTWC_CHGR0IRQ,
	.mask_base = BXTWC_MCHGR0IRQ,
	.irqs = bxtwc_regmap_irqs_chgr,
	.num_irqs = ARRAY_SIZE(bxtwc_regmap_irqs_chgr),
	.num_regs = 2,
};

static struct regmap_irq_chip bxtwc_regmap_irq_chip_crit = {
	.name = "bxtwc_irq_chip_crit",
	.status_base = BXTWC_CRITIRQ,
	.mask_base = BXTWC_MCRITIRQ,
	.irqs = bxtwc_regmap_irqs_crit,
	.num_irqs = ARRAY_SIZE(bxtwc_regmap_irqs_crit),
	.num_regs = 1,
};

static const struct resource gpio_resources[] = {
	DEFINE_RES_IRQ_NAMED(BXTWC_GPIO_LVL1_IRQ, "GPIO"),
};

static const struct resource adc_resources[] = {
	DEFINE_RES_IRQ_NAMED(BXTWC_ADC_IRQ, "ADC"),
};

static const struct resource usbc_resources[] = {
	DEFINE_RES_IRQ(BXTWC_USBC_IRQ),
};

static const struct resource charger_resources[] = {
	DEFINE_RES_IRQ_NAMED(BXTWC_CHGR0_IRQ, "CHARGER"),
	DEFINE_RES_IRQ_NAMED(BXTWC_CHGR1_IRQ, "CHARGER1"),
};

static const struct resource thermal_resources[] = {
	DEFINE_RES_IRQ(BXTWC_THRM_LVL1_IRQ),
};

static const struct resource bcu_resources[] = {
	DEFINE_RES_IRQ_NAMED(BXTWC_BCU_IRQ, "BCU"),
};

static const struct resource tmu_resources[] = {
	DEFINE_RES_IRQ_NAMED(BXTWC_TMU_IRQ, "TMU"),
};

static struct mfd_cell bxt_wc_dev[] = {
	{
		.name = "bxt_wcove_gpadc",
		.num_resources = ARRAY_SIZE(adc_resources),
		.resources = adc_resources,
	},
	{
		.name = "bxt_wcove_thermal",
		.num_resources = ARRAY_SIZE(thermal_resources),
		.resources = thermal_resources,
	},
	{
		.name = "bxt_wcove_usbc",
		.num_resources = ARRAY_SIZE(usbc_resources),
		.resources = usbc_resources,
	},
	{
		.name = "bxt_wcove_ext_charger",
		.num_resources = ARRAY_SIZE(charger_resources),
		.resources = charger_resources,
	},
	{
		.name = "bxt_wcove_bcu",
		.num_resources = ARRAY_SIZE(bcu_resources),
		.resources = bcu_resources,
	},
	{
		.name = "bxt_wcove_tmu",
		.num_resources = ARRAY_SIZE(tmu_resources),
		.resources = tmu_resources,
	},

	{
		.name = "bxt_wcove_gpio",
		.num_resources = ARRAY_SIZE(gpio_resources),
		.resources = gpio_resources,
	},
	{
		.name = "bxt_wcove_region",
	},
};

static int regmap_ipc_byte_reg_read(void *context, unsigned int reg,
				    unsigned int *val)
{
	int ret;
	int i2c_addr;
	u8 ipc_in[2];
	u8 ipc_out[4];
	struct intel_soc_pmic *pmic = context;

	if (!pmic)
		return -EINVAL;

	if (reg & REG_ADDR_MASK)
		i2c_addr = (reg & REG_ADDR_MASK) >> REG_ADDR_SHIFT;
	else
		i2c_addr = BXTWC_DEVICE1_ADDR;

	reg &= REG_OFFSET_MASK;

	ipc_in[0] = reg;
	ipc_in[1] = i2c_addr;
	ret = intel_scu_ipc_dev_command(pmic->scu, PMC_PMIC_ACCESS,
					PMC_PMIC_READ, ipc_in, sizeof(ipc_in),
					ipc_out, sizeof(ipc_out));
	if (ret)
		return ret;

	*val = ipc_out[0];

	return 0;
}

static int regmap_ipc_byte_reg_write(void *context, unsigned int reg,
				       unsigned int val)
{
	int i2c_addr;
	u8 ipc_in[3];
	struct intel_soc_pmic *pmic = context;

	if (!pmic)
		return -EINVAL;

	if (reg & REG_ADDR_MASK)
		i2c_addr = (reg & REG_ADDR_MASK) >> REG_ADDR_SHIFT;
	else
		i2c_addr = BXTWC_DEVICE1_ADDR;

	reg &= REG_OFFSET_MASK;

	ipc_in[0] = reg;
	ipc_in[1] = i2c_addr;
	ipc_in[2] = val;
	return intel_scu_ipc_dev_command(pmic->scu, PMC_PMIC_ACCESS,
					 PMC_PMIC_WRITE, ipc_in, sizeof(ipc_in),
					 NULL, 0);
}

/* sysfs interfaces to r/w PMIC registers, required by initial script */
static unsigned long bxtwc_reg_addr;
static ssize_t addr_show(struct device *dev,
			 struct device_attribute *attr, char *buf)
{
	return sysfs_emit(buf, "0x%lx\n", bxtwc_reg_addr);
}

static ssize_t addr_store(struct device *dev,
			  struct device_attribute *attr, const char *buf, size_t count)
{
	int ret;

	ret = kstrtoul(buf, 0, &bxtwc_reg_addr);
	if (ret)
		return ret;

	return count;
}

static ssize_t val_show(struct device *dev,
			struct device_attribute *attr, char *buf)
{
	int ret;
	unsigned int val;
	struct intel_soc_pmic *pmic = dev_get_drvdata(dev);

	ret = regmap_read(pmic->regmap, bxtwc_reg_addr, &val);
	if (ret) {
		dev_err(dev, "Failed to read 0x%lx\n", bxtwc_reg_addr);
		return ret;
	}

	return sysfs_emit(buf, "0x%02x\n", val);
}

static ssize_t val_store(struct device *dev,
			 struct device_attribute *attr, const char *buf, size_t count)
{
	int ret;
	unsigned int val;
	struct intel_soc_pmic *pmic = dev_get_drvdata(dev);

	ret = kstrtouint(buf, 0, &val);
	if (ret)
		return ret;

	ret = regmap_write(pmic->regmap, bxtwc_reg_addr, val);
	if (ret) {
		dev_err(dev, "Failed to write value 0x%02x to address 0x%lx",
			val, bxtwc_reg_addr);
		return ret;
	}
	return count;
}

static DEVICE_ATTR_ADMIN_RW(addr);
static DEVICE_ATTR_ADMIN_RW(val);
static struct attribute *bxtwc_attrs[] = {
	&dev_attr_addr.attr,
	&dev_attr_val.attr,
	NULL
};

static const struct attribute_group bxtwc_group = {
	.attrs = bxtwc_attrs,
};

static const struct attribute_group *bxtwc_groups[] = {
	&bxtwc_group,
	NULL
};

static const struct regmap_config bxtwc_regmap_config = {
	.reg_bits = 16,
	.val_bits = 8,
	.reg_write = regmap_ipc_byte_reg_write,
	.reg_read = regmap_ipc_byte_reg_read,
};

static int bxtwc_add_chained_irq_chip(struct intel_soc_pmic *pmic,
				struct regmap_irq_chip_data *pdata,
				int pirq, int irq_flags,
				const struct regmap_irq_chip *chip,
				struct regmap_irq_chip_data **data)
{
	int irq;

	irq = regmap_irq_get_virq(pdata, pirq);
	if (irq < 0)
		return dev_err_probe(pmic->dev, irq, "Failed to get parent vIRQ(%d) for chip %s\n",
				     pirq, chip->name);

	return devm_regmap_add_irq_chip(pmic->dev, pmic->regmap, irq, irq_flags,
					0, chip, data);
}

static int bxtwc_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	int ret;
	acpi_status status;
	unsigned long long hrv;
	struct intel_soc_pmic *pmic;

	status = acpi_evaluate_integer(ACPI_HANDLE(dev), "_HRV", NULL, &hrv);
	if (ACPI_FAILURE(status))
		return dev_err_probe(dev, -ENODEV, "Failed to get PMIC hardware revision\n");
	if (hrv != BROXTON_PMIC_WC_HRV)
		return dev_err_probe(dev, -ENODEV, "Invalid PMIC hardware revision: %llu\n", hrv);

	pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL);
	if (!pmic)
		return -ENOMEM;

	ret = platform_get_irq(pdev, 0);
	if (ret < 0)
		return ret;
	pmic->irq = ret;

	platform_set_drvdata(pdev, pmic);
	pmic->dev = dev;

	pmic->scu = devm_intel_scu_ipc_dev_get(dev);
	if (!pmic->scu)
		return -EPROBE_DEFER;

	pmic->regmap = devm_regmap_init(dev, NULL, pmic, &bxtwc_regmap_config);
	if (IS_ERR(pmic->regmap))
		return dev_err_probe(dev, PTR_ERR(pmic->regmap), "Failed to initialise regmap\n");

	ret = devm_regmap_add_irq_chip(dev, pmic->regmap, pmic->irq,
				       IRQF_ONESHOT | IRQF_SHARED,
				       0, &bxtwc_regmap_irq_chip,
				       &pmic->irq_chip_data);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to add IRQ chip\n");

	ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data,
					 BXTWC_PWRBTN_LVL1_IRQ,
					 IRQF_ONESHOT,
					 &bxtwc_regmap_irq_chip_pwrbtn,
					 &pmic->irq_chip_data_pwrbtn);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to add PWRBTN IRQ chip\n");

	ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data,
					 BXTWC_TMU_LVL1_IRQ,
					 IRQF_ONESHOT,
					 &bxtwc_regmap_irq_chip_tmu,
					 &pmic->irq_chip_data_tmu);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to add TMU IRQ chip\n");

	/* Add chained IRQ handler for BCU IRQs */
	ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data,
					 BXTWC_BCU_LVL1_IRQ,
					 IRQF_ONESHOT,
					 &bxtwc_regmap_irq_chip_bcu,
					 &pmic->irq_chip_data_bcu);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to add BUC IRQ chip\n");

	/* Add chained IRQ handler for ADC IRQs */
	ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data,
					 BXTWC_ADC_LVL1_IRQ,
					 IRQF_ONESHOT,
					 &bxtwc_regmap_irq_chip_adc,
					 &pmic->irq_chip_data_adc);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to add ADC IRQ chip\n");

	/* Add chained IRQ handler for CHGR IRQs */
	ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data,
					 BXTWC_CHGR_LVL1_IRQ,
					 IRQF_ONESHOT,
					 &bxtwc_regmap_irq_chip_chgr,
					 &pmic->irq_chip_data_chgr);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to add CHGR IRQ chip\n");

	/* Add chained IRQ handler for CRIT IRQs */
	ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data,
					 BXTWC_CRIT_LVL1_IRQ,
					 IRQF_ONESHOT,
					 &bxtwc_regmap_irq_chip_crit,
					 &pmic->irq_chip_data_crit);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to add CRIT IRQ chip\n");

	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE, bxt_wc_dev, ARRAY_SIZE(bxt_wc_dev),
				   NULL, 0, NULL);
	if (ret)
		return dev_err_probe(dev, ret, "Failed to add devices\n");

	/*
	 * There is a known H/W bug. Upon reset, BIT 5 of register
	 * BXTWC_CHGR_LVL1_IRQ is 0 which is the expected value. However,
	 * later it's set to 1(masked) automatically by hardware. So we
	 * place the software workaround here to unmask it again in order
	 * to re-enable the charger interrupt.
	 */
	regmap_update_bits(pmic->regmap, BXTWC_MIRQLVL1, BXTWC_MIRQLVL1_MCHGR, 0);

	return 0;
}

static void bxtwc_shutdown(struct platform_device *pdev)
{
	struct intel_soc_pmic *pmic = platform_get_drvdata(pdev);

	disable_irq(pmic->irq);
}

static int bxtwc_suspend(struct device *dev)
{
	struct intel_soc_pmic *pmic = dev_get_drvdata(dev);

	disable_irq(pmic->irq);

	return 0;
}

static int bxtwc_resume(struct device *dev)
{
	struct intel_soc_pmic *pmic = dev_get_drvdata(dev);

	enable_irq(pmic->irq);
	return 0;
}

static DEFINE_SIMPLE_DEV_PM_OPS(bxtwc_pm_ops, bxtwc_suspend, bxtwc_resume);

static const struct acpi_device_id bxtwc_acpi_ids[] = {
	{ "INT34D3", },
	{ }
};
MODULE_DEVICE_TABLE(acpi, bxtwc_acpi_ids);

static struct platform_driver bxtwc_driver = {
	.probe = bxtwc_probe,
	.shutdown = bxtwc_shutdown,
	.driver	= {
		.name	= "BXTWC PMIC",
		.pm     = pm_sleep_ptr(&bxtwc_pm_ops),
		.acpi_match_table = bxtwc_acpi_ids,
		.dev_groups = bxtwc_groups,
	},
};

module_platform_driver(bxtwc_driver);

MODULE_DESCRIPTION("Intel Broxton Whiskey Cove PMIC MFD core driver");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Qipeng Zha <qipeng.zha@intel.com>");