summaryrefslogtreecommitdiffstats
path: root/drivers/regulator/qcom-rpmh-regulator.c
blob: db6c085da65ecf742daeca83824072ab70a3834b (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
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018, The Linux Foundation. All rights reserved.

#define pr_fmt(fmt) "%s: " fmt, __func__

#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>

#include <soc/qcom/cmd-db.h>
#include <soc/qcom/rpmh.h>

#include <dt-bindings/regulator/qcom,rpmh-regulator.h>

/**
 * enum rpmh_regulator_type - supported RPMh accelerator types
 * %VRM:	RPMh VRM accelerator which supports voting on enable, voltage,
 *		and mode of LDO, SMPS, and BOB type PMIC regulators.
 * %XOB:	RPMh XOB accelerator which supports voting on the enable state
 *		of PMIC regulators.
 */
enum rpmh_regulator_type {
	VRM,
	XOB,
};

#define RPMH_REGULATOR_REG_VRM_VOLTAGE		0x0
#define RPMH_REGULATOR_REG_ENABLE		0x4
#define RPMH_REGULATOR_REG_VRM_MODE		0x8

#define PMIC4_LDO_MODE_RETENTION		4
#define PMIC4_LDO_MODE_LPM			5
#define PMIC4_LDO_MODE_HPM			7

#define PMIC4_SMPS_MODE_RETENTION		4
#define PMIC4_SMPS_MODE_PFM			5
#define PMIC4_SMPS_MODE_AUTO			6
#define PMIC4_SMPS_MODE_PWM			7

#define PMIC4_BOB_MODE_PASS			0
#define PMIC4_BOB_MODE_PFM			1
#define PMIC4_BOB_MODE_AUTO			2
#define PMIC4_BOB_MODE_PWM			3

#define PMIC5_LDO_MODE_RETENTION		3
#define PMIC5_LDO_MODE_LPM			4
#define PMIC5_LDO_MODE_HPM			7

#define PMIC5_SMPS_MODE_RETENTION		3
#define PMIC5_SMPS_MODE_PFM			4
#define PMIC5_SMPS_MODE_AUTO			6
#define PMIC5_SMPS_MODE_PWM			7

#define PMIC5_BOB_MODE_PASS			2
#define PMIC5_BOB_MODE_PFM			4
#define PMIC5_BOB_MODE_AUTO			6
#define PMIC5_BOB_MODE_PWM			7

/**
 * struct rpmh_vreg_hw_data - RPMh regulator hardware configurations
 * @regulator_type:		RPMh accelerator type used to manage this
 *				regulator
 * @ops:			Pointer to regulator ops callback structure
 * @voltage_range:		The single range of voltages supported by this
 *				PMIC regulator type
 * @n_voltages:			The number of unique voltage set points defined
 *				by voltage_range
 * @hpm_min_load_uA:		Minimum load current in microamps that requires
 *				high power mode (HPM) operation.  This is used
 *				for LDO hardware type regulators only.
 * @pmic_mode_map:		Array indexed by regulator framework mode
 *				containing PMIC hardware modes.  Must be large
 *				enough to index all framework modes supported
 *				by this regulator hardware type.
 * @of_map_mode:		Maps an RPMH_REGULATOR_MODE_* mode value defined
 *				in device tree to a regulator framework mode
 */
struct rpmh_vreg_hw_data {
	enum rpmh_regulator_type		regulator_type;
	const struct regulator_ops		*ops;
	const struct regulator_linear_range	voltage_range;
	int					n_voltages;
	int					hpm_min_load_uA;
	const int				*pmic_mode_map;
	unsigned int			      (*of_map_mode)(unsigned int mode);
};

/**
 * struct rpmh_vreg - individual RPMh regulator data structure encapsulating a
 *		single regulator device
 * @dev:			Device pointer for the top-level PMIC RPMh
 *				regulator parent device.  This is used as a
 *				handle in RPMh write requests.
 * @addr:			Base address of the regulator resource within
 *				an RPMh accelerator
 * @rdesc:			Regulator descriptor
 * @hw_data:			PMIC regulator configuration data for this RPMh
 *				regulator
 * @always_wait_for_ack:	Boolean flag indicating if a request must always
 *				wait for an ACK from RPMh before continuing even
 *				if it corresponds to a strictly lower power
 *				state (e.g. enabled --> disabled).
 * @enabled:			Flag indicating if the regulator is enabled or
 *				not
 * @bypassed:			Boolean indicating if the regulator is in
 *				bypass (pass-through) mode or not.  This is
 *				only used by BOB rpmh-regulator resources.
 * @voltage_selector:		Selector used for get_voltage_sel() and
 *				set_voltage_sel() callbacks
 * @mode:			RPMh VRM regulator current framework mode
 */
struct rpmh_vreg {
	struct device			*dev;
	u32				addr;
	struct regulator_desc		rdesc;
	const struct rpmh_vreg_hw_data	*hw_data;
	bool				always_wait_for_ack;

	int				enabled;
	bool				bypassed;
	int				voltage_selector;
	unsigned int			mode;
};

/**
 * struct rpmh_vreg_init_data - initialization data for an RPMh regulator
 * @name:			Name for the regulator which also corresponds
 *				to the device tree subnode name of the regulator
 * @resource_name:		RPMh regulator resource name format string.
 *				This must include exactly one field: '%s' which
 *				is filled at run-time with the PMIC ID provided
 *				by device tree property qcom,pmic-id.  Example:
 *				"ldo%s1" for RPMh resource "ldoa1".
 * @supply_name:		Parent supply regulator name
 * @hw_data:			Configuration data for this PMIC regulator type
 */
struct rpmh_vreg_init_data {
	const char			*name;
	const char			*resource_name;
	const char			*supply_name;
	const struct rpmh_vreg_hw_data	*hw_data;
};

/**
 * rpmh_regulator_send_request() - send the request to RPMh
 * @vreg:		Pointer to the RPMh regulator
 * @cmd:		Pointer to the RPMh command to send
 * @wait_for_ack:	Boolean indicating if execution must wait until the
 *			request has been acknowledged as complete
 *
 * Return: 0 on success, errno on failure
 */
static int rpmh_regulator_send_request(struct rpmh_vreg *vreg,
			struct tcs_cmd *cmd, bool wait_for_ack)
{
	int ret;

	if (wait_for_ack || vreg->always_wait_for_ack)
		ret = rpmh_write(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd, 1);
	else
		ret = rpmh_write_async(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd,
					1);

	return ret;
}

static int _rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev,
				unsigned int selector, bool wait_for_ack)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
	struct tcs_cmd cmd = {
		.addr = vreg->addr + RPMH_REGULATOR_REG_VRM_VOLTAGE,
	};
	int ret;

	/* VRM voltage control register is set with voltage in millivolts. */
	cmd.data = DIV_ROUND_UP(regulator_list_voltage_linear_range(rdev,
							selector), 1000);

	ret = rpmh_regulator_send_request(vreg, &cmd, wait_for_ack);
	if (!ret)
		vreg->voltage_selector = selector;

	return ret;
}

static int rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev,
					unsigned int selector)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);

	if (vreg->enabled == -EINVAL) {
		/*
		 * Cache the voltage and send it later when the regulator is
		 * enabled or disabled.
		 */
		vreg->voltage_selector = selector;
		return 0;
	}

	return _rpmh_regulator_vrm_set_voltage_sel(rdev, selector,
					selector > vreg->voltage_selector);
}

static int rpmh_regulator_vrm_get_voltage_sel(struct regulator_dev *rdev)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);

	return vreg->voltage_selector;
}

static int rpmh_regulator_is_enabled(struct regulator_dev *rdev)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);

	return vreg->enabled;
}

static int rpmh_regulator_set_enable_state(struct regulator_dev *rdev,
					bool enable)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
	struct tcs_cmd cmd = {
		.addr = vreg->addr + RPMH_REGULATOR_REG_ENABLE,
		.data = enable,
	};
	int ret;

	if (vreg->enabled == -EINVAL &&
	    vreg->voltage_selector != -ENOTRECOVERABLE) {
		ret = _rpmh_regulator_vrm_set_voltage_sel(rdev,
						vreg->voltage_selector, true);
		if (ret < 0)
			return ret;
	}

	ret = rpmh_regulator_send_request(vreg, &cmd, enable);
	if (!ret)
		vreg->enabled = enable;

	return ret;
}

static int rpmh_regulator_enable(struct regulator_dev *rdev)
{
	return rpmh_regulator_set_enable_state(rdev, true);
}

static int rpmh_regulator_disable(struct regulator_dev *rdev)
{
	return rpmh_regulator_set_enable_state(rdev, false);
}

static int rpmh_regulator_vrm_set_mode_bypass(struct rpmh_vreg *vreg,
					unsigned int mode, bool bypassed)
{
	struct tcs_cmd cmd = {
		.addr = vreg->addr + RPMH_REGULATOR_REG_VRM_MODE,
	};
	int pmic_mode;

	if (mode > REGULATOR_MODE_STANDBY)
		return -EINVAL;

	pmic_mode = vreg->hw_data->pmic_mode_map[mode];
	if (pmic_mode < 0)
		return pmic_mode;

	if (bypassed)
		cmd.data = PMIC4_BOB_MODE_PASS;
	else
		cmd.data = pmic_mode;

	return rpmh_regulator_send_request(vreg, &cmd, true);
}

static int rpmh_regulator_vrm_set_mode(struct regulator_dev *rdev,
					unsigned int mode)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
	int ret;

	if (mode == vreg->mode)
		return 0;

	ret = rpmh_regulator_vrm_set_mode_bypass(vreg, mode, vreg->bypassed);
	if (!ret)
		vreg->mode = mode;

	return ret;
}

static unsigned int rpmh_regulator_vrm_get_mode(struct regulator_dev *rdev)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);

	return vreg->mode;
}

/**
 * rpmh_regulator_vrm_set_load() - set the regulator mode based upon the load
 *		current requested
 * @rdev:		Regulator device pointer for the rpmh-regulator
 * @load_uA:		Aggregated load current in microamps
 *
 * This function is used in the regulator_ops for VRM type RPMh regulator
 * devices.
 *
 * Return: 0 on success, errno on failure
 */
static int rpmh_regulator_vrm_set_load(struct regulator_dev *rdev, int load_uA)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
	unsigned int mode;

	if (load_uA >= vreg->hw_data->hpm_min_load_uA)
		mode = REGULATOR_MODE_NORMAL;
	else
		mode = REGULATOR_MODE_IDLE;

	return rpmh_regulator_vrm_set_mode(rdev, mode);
}

static int rpmh_regulator_vrm_set_bypass(struct regulator_dev *rdev,
				bool enable)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
	int ret;

	if (vreg->bypassed == enable)
		return 0;

	ret = rpmh_regulator_vrm_set_mode_bypass(vreg, vreg->mode, enable);
	if (!ret)
		vreg->bypassed = enable;

	return ret;
}

static int rpmh_regulator_vrm_get_bypass(struct regulator_dev *rdev,
				bool *enable)
{
	struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);

	*enable = vreg->bypassed;

	return 0;
}

static const struct regulator_ops rpmh_regulator_vrm_ops = {
	.enable			= rpmh_regulator_enable,
	.disable		= rpmh_regulator_disable,
	.is_enabled		= rpmh_regulator_is_enabled,
	.set_voltage_sel	= rpmh_regulator_vrm_set_voltage_sel,
	.get_voltage_sel	= rpmh_regulator_vrm_get_voltage_sel,
	.list_voltage		= regulator_list_voltage_linear_range,
	.set_mode		= rpmh_regulator_vrm_set_mode,
	.get_mode		= rpmh_regulator_vrm_get_mode,
};

static const struct regulator_ops rpmh_regulator_vrm_drms_ops = {
	.enable			= rpmh_regulator_enable,
	.disable		= rpmh_regulator_disable,
	.is_enabled		= rpmh_regulator_is_enabled,
	.set_voltage_sel	= rpmh_regulator_vrm_set_voltage_sel,
	.get_voltage_sel	= rpmh_regulator_vrm_get_voltage_sel,
	.list_voltage		= regulator_list_voltage_linear_range,
	.set_mode		= rpmh_regulator_vrm_set_mode,
	.get_mode		= rpmh_regulator_vrm_get_mode,
	.set_load		= rpmh_regulator_vrm_set_load,
};

static const struct regulator_ops rpmh_regulator_vrm_bypass_ops = {
	.enable			= rpmh_regulator_enable,
	.disable		= rpmh_regulator_disable,
	.is_enabled		= rpmh_regulator_is_enabled,
	.set_voltage_sel	= rpmh_regulator_vrm_set_voltage_sel,
	.get_voltage_sel	= rpmh_regulator_vrm_get_voltage_sel,
	.list_voltage		= regulator_list_voltage_linear_range,
	.set_mode		= rpmh_regulator_vrm_set_mode,
	.get_mode		= rpmh_regulator_vrm_get_mode,
	.set_bypass		= rpmh_regulator_vrm_set_bypass,
	.get_bypass		= rpmh_regulator_vrm_get_bypass,
};

static const struct regulator_ops rpmh_regulator_xob_ops = {
	.enable			= rpmh_regulator_enable,
	.disable		= rpmh_regulator_disable,
	.is_enabled		= rpmh_regulator_is_enabled,
};

/**
 * rpmh_regulator_init_vreg() - initialize all attributes of an rpmh-regulator
 * vreg:		Pointer to the individual rpmh-regulator resource
 * dev:			Pointer to the top level rpmh-regulator PMIC device
 * node:		Pointer to the individual rpmh-regulator resource
 *			device node
 * pmic_id:		String used to identify the top level rpmh-regulator
 *			PMIC device on the board
 * pmic_rpmh_data:	Pointer to a null-terminated array of rpmh-regulator
 *			resources defined for the top level PMIC device
 *
 * Return: 0 on success, errno on failure
 */
static int rpmh_regulator_init_vreg(struct rpmh_vreg *vreg, struct device *dev,
			struct device_node *node, const char *pmic_id,
			const struct rpmh_vreg_init_data *pmic_rpmh_data)
{
	struct regulator_config reg_config = {};
	char rpmh_resource_name[20] = "";
	const struct rpmh_vreg_init_data *rpmh_data;
	struct regulator_init_data *init_data;
	struct regulator_dev *rdev;
	int ret;

	vreg->dev = dev;

	for (rpmh_data = pmic_rpmh_data; rpmh_data->name; rpmh_data++)
		if (of_node_name_eq(node, rpmh_data->name))
			break;

	if (!rpmh_data->name) {
		dev_err(dev, "Unknown regulator %pOFn\n", node);
		return -EINVAL;
	}

	scnprintf(rpmh_resource_name, sizeof(rpmh_resource_name),
		rpmh_data->resource_name, pmic_id);

	vreg->addr = cmd_db_read_addr(rpmh_resource_name);
	if (!vreg->addr) {
		dev_err(dev, "%pOFn: could not find RPMh address for resource %s\n",
			node, rpmh_resource_name);
		return -ENODEV;
	}

	vreg->rdesc.name = rpmh_data->name;
	vreg->rdesc.supply_name = rpmh_data->supply_name;
	vreg->hw_data = rpmh_data->hw_data;

	vreg->enabled = -EINVAL;
	vreg->voltage_selector = -ENOTRECOVERABLE;
	vreg->mode = REGULATOR_MODE_INVALID;

	if (rpmh_data->hw_data->n_voltages) {
		vreg->rdesc.linear_ranges = &rpmh_data->hw_data->voltage_range;
		vreg->rdesc.n_linear_ranges = 1;
		vreg->rdesc.n_voltages = rpmh_data->hw_data->n_voltages;
	}

	vreg->always_wait_for_ack = of_property_read_bool(node,
						"qcom,always-wait-for-ack");

	vreg->rdesc.owner	= THIS_MODULE;
	vreg->rdesc.type	= REGULATOR_VOLTAGE;
	vreg->rdesc.ops		= vreg->hw_data->ops;
	vreg->rdesc.of_map_mode	= vreg->hw_data->of_map_mode;

	init_data = of_get_regulator_init_data(dev, node, &vreg->rdesc);
	if (!init_data)
		return -ENOMEM;

	if (rpmh_data->hw_data->regulator_type == XOB &&
	    init_data->constraints.min_uV &&
	    init_data->constraints.min_uV == init_data->constraints.max_uV) {
		vreg->rdesc.fixed_uV = init_data->constraints.min_uV;
		vreg->rdesc.n_voltages = 1;
	}

	reg_config.dev		= dev;
	reg_config.init_data	= init_data;
	reg_config.of_node	= node;
	reg_config.driver_data	= vreg;

	rdev = devm_regulator_register(dev, &vreg->rdesc, &reg_config);
	if (IS_ERR(rdev)) {
		ret = PTR_ERR(rdev);
		dev_err(dev, "%pOFn: devm_regulator_register() failed, ret=%d\n",
			node, ret);
		return ret;
	}

	dev_dbg(dev, "%pOFn regulator registered for RPMh resource %s @ 0x%05X\n",
		node, rpmh_resource_name, vreg->addr);

	return 0;
}

static const int pmic_mode_map_pmic4_ldo[REGULATOR_MODE_STANDBY + 1] = {
	[REGULATOR_MODE_INVALID] = -EINVAL,
	[REGULATOR_MODE_STANDBY] = PMIC4_LDO_MODE_RETENTION,
	[REGULATOR_MODE_IDLE]    = PMIC4_LDO_MODE_LPM,
	[REGULATOR_MODE_NORMAL]  = PMIC4_LDO_MODE_HPM,
	[REGULATOR_MODE_FAST]    = -EINVAL,
};

static const int pmic_mode_map_pmic5_ldo[REGULATOR_MODE_STANDBY + 1] = {
	[REGULATOR_MODE_INVALID] = -EINVAL,
	[REGULATOR_MODE_STANDBY] = PMIC5_LDO_MODE_RETENTION,
	[REGULATOR_MODE_IDLE]    = PMIC5_LDO_MODE_LPM,
	[REGULATOR_MODE_NORMAL]  = PMIC5_LDO_MODE_HPM,
	[REGULATOR_MODE_FAST]    = -EINVAL,
};

static unsigned int rpmh_regulator_pmic4_ldo_of_map_mode(unsigned int rpmh_mode)
{
	unsigned int mode;

	switch (rpmh_mode) {
	case RPMH_REGULATOR_MODE_HPM:
		mode = REGULATOR_MODE_NORMAL;
		break;
	case RPMH_REGULATOR_MODE_LPM:
		mode = REGULATOR_MODE_IDLE;
		break;
	case RPMH_REGULATOR_MODE_RET:
		mode = REGULATOR_MODE_STANDBY;
		break;
	default:
		mode = REGULATOR_MODE_INVALID;
		break;
	}

	return mode;
}

static const int pmic_mode_map_pmic4_smps[REGULATOR_MODE_STANDBY + 1] = {
	[REGULATOR_MODE_INVALID] = -EINVAL,
	[REGULATOR_MODE_STANDBY] = PMIC4_SMPS_MODE_RETENTION,
	[REGULATOR_MODE_IDLE]    = PMIC4_SMPS_MODE_PFM,
	[REGULATOR_MODE_NORMAL]  = PMIC4_SMPS_MODE_AUTO,
	[REGULATOR_MODE_FAST]    = PMIC4_SMPS_MODE_PWM,
};

static const int pmic_mode_map_pmic5_smps[REGULATOR_MODE_STANDBY + 1] = {
	[REGULATOR_MODE_INVALID] = -EINVAL,
	[REGULATOR_MODE_STANDBY] = PMIC5_SMPS_MODE_RETENTION,
	[REGULATOR_MODE_IDLE]    = PMIC5_SMPS_MODE_PFM,
	[REGULATOR_MODE_NORMAL]  = PMIC5_SMPS_MODE_AUTO,
	[REGULATOR_MODE_FAST]    = PMIC5_SMPS_MODE_PWM,
};

static unsigned int
rpmh_regulator_pmic4_smps_of_map_mode(unsigned int rpmh_mode)
{
	unsigned int mode;

	switch (rpmh_mode) {
	case RPMH_REGULATOR_MODE_HPM:
		mode = REGULATOR_MODE_FAST;
		break;
	case RPMH_REGULATOR_MODE_AUTO:
		mode = REGULATOR_MODE_NORMAL;
		break;
	case RPMH_REGULATOR_MODE_LPM:
		mode = REGULATOR_MODE_IDLE;
		break;
	case RPMH_REGULATOR_MODE_RET:
		mode = REGULATOR_MODE_STANDBY;
		break;
	default:
		mode = REGULATOR_MODE_INVALID;
		break;
	}

	return mode;
}

static const int pmic_mode_map_pmic4_bob[REGULATOR_MODE_STANDBY + 1] = {
	[REGULATOR_MODE_INVALID] = -EINVAL,
	[REGULATOR_MODE_STANDBY] = -EINVAL,
	[REGULATOR_MODE_IDLE]    = PMIC4_BOB_MODE_PFM,
	[REGULATOR_MODE_NORMAL]  = PMIC4_BOB_MODE_AUTO,
	[REGULATOR_MODE_FAST]    = PMIC4_BOB_MODE_PWM,
};

static const int pmic_mode_map_pmic5_bob[REGULATOR_MODE_STANDBY + 1] = {
	[REGULATOR_MODE_INVALID] = -EINVAL,
	[REGULATOR_MODE_STANDBY] = -EINVAL,
	[REGULATOR_MODE_IDLE]    = PMIC5_BOB_MODE_PFM,
	[REGULATOR_MODE_NORMAL]  = PMIC5_BOB_MODE_AUTO,
	[REGULATOR_MODE_FAST]    = PMIC5_BOB_MODE_PWM,
};

static unsigned int rpmh_regulator_pmic4_bob_of_map_mode(unsigned int rpmh_mode)
{
	unsigned int mode;

	switch (rpmh_mode) {
	case RPMH_REGULATOR_MODE_HPM:
		mode = REGULATOR_MODE_FAST;
		break;
	case RPMH_REGULATOR_MODE_AUTO:
		mode = REGULATOR_MODE_NORMAL;
		break;
	case RPMH_REGULATOR_MODE_LPM:
		mode = REGULATOR_MODE_IDLE;
		break;
	default:
		mode = REGULATOR_MODE_INVALID;
		break;
	}

	return mode;
}

static const struct rpmh_vreg_hw_data pmic4_pldo = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_drms_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(1664000, 0, 255, 8000),
	.n_voltages = 256,
	.hpm_min_load_uA = 10000,
	.pmic_mode_map = pmic_mode_map_pmic4_ldo,
	.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic4_pldo_lv = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_drms_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(1256000, 0, 127, 8000),
	.n_voltages = 128,
	.hpm_min_load_uA = 10000,
	.pmic_mode_map = pmic_mode_map_pmic4_ldo,
	.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic4_nldo = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_drms_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000),
	.n_voltages = 128,
	.hpm_min_load_uA = 30000,
	.pmic_mode_map = pmic_mode_map_pmic4_ldo,
	.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic4_hfsmps3 = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000),
	.n_voltages = 216,
	.pmic_mode_map = pmic_mode_map_pmic4_smps,
	.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic4_ftsmps426 = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 258, 4000),
	.n_voltages = 259,
	.pmic_mode_map = pmic_mode_map_pmic4_smps,
	.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic4_bob = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_bypass_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(1824000, 0, 83, 32000),
	.n_voltages = 84,
	.pmic_mode_map = pmic_mode_map_pmic4_bob,
	.of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic4_lvs = {
	.regulator_type = XOB,
	.ops = &rpmh_regulator_xob_ops,
	/* LVS hardware does not support voltage or mode configuration. */
};

static const struct rpmh_vreg_hw_data pmic5_pldo = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_drms_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(1504000, 0, 255, 8000),
	.n_voltages = 256,
	.hpm_min_load_uA = 10000,
	.pmic_mode_map = pmic_mode_map_pmic5_ldo,
	.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic5_pldo_lv = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_drms_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(1504000, 0, 62, 8000),
	.n_voltages = 63,
	.hpm_min_load_uA = 10000,
	.pmic_mode_map = pmic_mode_map_pmic5_ldo,
	.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic5_nldo = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_drms_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 123, 8000),
	.n_voltages = 124,
	.hpm_min_load_uA = 30000,
	.pmic_mode_map = pmic_mode_map_pmic5_ldo,
	.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic5_hfsmps510 = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000),
	.n_voltages = 216,
	.pmic_mode_map = pmic_mode_map_pmic5_smps,
	.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic5_ftsmps510 = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 263, 4000),
	.n_voltages = 264,
	.pmic_mode_map = pmic_mode_map_pmic5_smps,
	.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic5_hfsmps515 = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(2800000, 0, 4, 1600),
	.n_voltages = 5,
	.pmic_mode_map = pmic_mode_map_pmic5_smps,
	.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};

static const struct rpmh_vreg_hw_data pmic5_bob = {
	.regulator_type = VRM,
	.ops = &rpmh_regulator_vrm_bypass_ops,
	.voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 135, 32000),
	.n_voltages = 136,
	.pmic_mode_map = pmic_mode_map_pmic5_bob,
	.of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode,
};

#define RPMH_VREG(_name, _resource_name, _hw_data, _supply_name) \
{ \
	.name		= _name, \
	.resource_name	= _resource_name, \
	.hw_data	= _hw_data, \
	.supply_name	= _supply_name, \
}

static const struct rpmh_vreg_init_data pm8998_vreg_data[] = {
	RPMH_VREG("smps1",  "smp%s1",  &pmic4_ftsmps426, "vdd-s1"),
	RPMH_VREG("smps2",  "smp%s2",  &pmic4_ftsmps426, "vdd-s2"),
	RPMH_VREG("smps3",  "smp%s3",  &pmic4_hfsmps3,   "vdd-s3"),
	RPMH_VREG("smps4",  "smp%s4",  &pmic4_hfsmps3,   "vdd-s4"),
	RPMH_VREG("smps5",  "smp%s5",  &pmic4_hfsmps3,   "vdd-s5"),
	RPMH_VREG("smps6",  "smp%s6",  &pmic4_ftsmps426, "vdd-s6"),
	RPMH_VREG("smps7",  "smp%s7",  &pmic4_ftsmps426, "vdd-s7"),
	RPMH_VREG("smps8",  "smp%s8",  &pmic4_ftsmps426, "vdd-s8"),
	RPMH_VREG("smps9",  "smp%s9",  &pmic4_ftsmps426, "vdd-s9"),
	RPMH_VREG("smps10", "smp%s10", &pmic4_ftsmps426, "vdd-s10"),
	RPMH_VREG("smps11", "smp%s11", &pmic4_ftsmps426, "vdd-s11"),
	RPMH_VREG("smps12", "smp%s12", &pmic4_ftsmps426, "vdd-s12"),
	RPMH_VREG("smps13", "smp%s13", &pmic4_ftsmps426, "vdd-s13"),
	RPMH_VREG("ldo1",   "ldo%s1",  &pmic4_nldo,      "vdd-l1-l27"),
	RPMH_VREG("ldo2",   "ldo%s2",  &pmic4_nldo,      "vdd-l2-l8-l17"),
	RPMH_VREG("ldo3",   "ldo%s3",  &pmic4_nldo,      "vdd-l3-l11"),
	RPMH_VREG("ldo4",   "ldo%s4",  &pmic4_nldo,      "vdd-l4-l5"),
	RPMH_VREG("ldo5",   "ldo%s5",  &pmic4_nldo,      "vdd-l4-l5"),
	RPMH_VREG("ldo6",   "ldo%s6",  &pmic4_pldo,      "vdd-l6"),
	RPMH_VREG("ldo7",   "ldo%s7",  &pmic4_pldo_lv,   "vdd-l7-l12-l14-l15"),
	RPMH_VREG("ldo8",   "ldo%s8",  &pmic4_nldo,      "vdd-l2-l8-l17"),
	RPMH_VREG("ldo9",   "ldo%s9",  &pmic4_pldo,      "vdd-l9"),
	RPMH_VREG("ldo10",  "ldo%s10", &pmic4_pldo,      "vdd-l10-l23-l25"),
	RPMH_VREG("ldo11",  "ldo%s11", &pmic4_nldo,      "vdd-l3-l11"),
	RPMH_VREG("ldo12",  "ldo%s12", &pmic4_pldo_lv,   "vdd-l7-l12-l14-l15"),
	RPMH_VREG("ldo13",  "ldo%s13", &pmic4_pldo,      "vdd-l13-l19-l21"),
	RPMH_VREG("ldo14",  "ldo%s14", &pmic4_pldo_lv,   "vdd-l7-l12-l14-l15"),
	RPMH_VREG("ldo15",  "ldo%s15", &pmic4_pldo_lv,   "vdd-l7-l12-l14-l15"),
	RPMH_VREG("ldo16",  "ldo%s16", &pmic4_pldo,      "vdd-l16-l28"),
	RPMH_VREG("ldo17",  "ldo%s17", &pmic4_nldo,      "vdd-l2-l8-l17"),
	RPMH_VREG("ldo18",  "ldo%s18", &pmic4_pldo,      "vdd-l18-l22"),
	RPMH_VREG("ldo19",  "ldo%s19", &pmic4_pldo,      "vdd-l13-l19-l21"),
	RPMH_VREG("ldo20",  "ldo%s20", &pmic4_pldo,      "vdd-l20-l24"),
	RPMH_VREG("ldo21",  "ldo%s21", &pmic4_pldo,      "vdd-l13-l19-l21"),
	RPMH_VREG("ldo22",  "ldo%s22", &pmic4_pldo,      "vdd-l18-l22"),
	RPMH_VREG("ldo23",  "ldo%s23", &pmic4_pldo,      "vdd-l10-l23-l25"),
	RPMH_VREG("ldo24",  "ldo%s24", &pmic4_pldo,      "vdd-l20-l24"),
	RPMH_VREG("ldo25",  "ldo%s25", &pmic4_pldo,      "vdd-l10-l23-l25"),
	RPMH_VREG("ldo26",  "ldo%s26", &pmic4_nldo,      "vdd-l26"),
	RPMH_VREG("ldo27",  "ldo%s27", &pmic4_nldo,      "vdd-l1-l27"),
	RPMH_VREG("ldo28",  "ldo%s28", &pmic4_pldo,      "vdd-l16-l28"),
	RPMH_VREG("lvs1",   "vs%s1",   &pmic4_lvs,       "vin-lvs-1-2"),
	RPMH_VREG("lvs2",   "vs%s2",   &pmic4_lvs,       "vin-lvs-1-2"),
	{},
};

static const struct rpmh_vreg_init_data pmi8998_vreg_data[] = {
	RPMH_VREG("bob",    "bob%s1",  &pmic4_bob,       "vdd-bob"),
	{},
};

static const struct rpmh_vreg_init_data pm8005_vreg_data[] = {
	RPMH_VREG("smps1",  "smp%s1",  &pmic4_ftsmps426, "vdd-s1"),
	RPMH_VREG("smps2",  "smp%s2",  &pmic4_ftsmps426, "vdd-s2"),
	RPMH_VREG("smps3",  "smp%s3",  &pmic4_ftsmps426, "vdd-s3"),
	RPMH_VREG("smps4",  "smp%s4",  &pmic4_ftsmps426, "vdd-s4"),
	{},
};

static const struct rpmh_vreg_init_data pm8150_vreg_data[] = {
	RPMH_VREG("smps1",  "smp%s1",  &pmic5_ftsmps510, "vdd-s1"),
	RPMH_VREG("smps2",  "smp%s2",  &pmic5_ftsmps510, "vdd-s2"),
	RPMH_VREG("smps3",  "smp%s3",  &pmic5_ftsmps510, "vdd-s3"),
	RPMH_VREG("smps4",  "smp%s4",  &pmic5_hfsmps510,   "vdd-s4"),
	RPMH_VREG("smps5",  "smp%s5",  &pmic5_hfsmps510,   "vdd-s5"),
	RPMH_VREG("smps6",  "smp%s6",  &pmic5_ftsmps510, "vdd-s6"),
	RPMH_VREG("smps7",  "smp%s7",  &pmic5_ftsmps510, "vdd-s7"),
	RPMH_VREG("smps8",  "smp%s8",  &pmic5_ftsmps510, "vdd-s8"),
	RPMH_VREG("smps9",  "smp%s9",  &pmic5_ftsmps510, "vdd-s9"),
	RPMH_VREG("smps10", "smp%s10", &pmic5_ftsmps510, "vdd-s10"),
	RPMH_VREG("ldo1",   "ldo%s1",  &pmic5_nldo,      "vdd-l1-l8-l11"),
	RPMH_VREG("ldo2",   "ldo%s2",  &pmic5_pldo,      "vdd-l2-l10"),
	RPMH_VREG("ldo3",   "ldo%s3",  &pmic5_nldo,      "vdd-l3-l4-l5-l18"),
	RPMH_VREG("ldo4",   "ldo%s4",  &pmic5_nldo,      "vdd-l3-l4-l5-l18"),
	RPMH_VREG("ldo5",   "ldo%s5",  &pmic5_nldo,      "vdd-l3-l4-l5-l18"),
	RPMH_VREG("ldo6",   "ldo%s6",  &pmic5_nldo,      "vdd-l6-l9"),
	RPMH_VREG("ldo7",   "ldo%s7",  &pmic5_pldo,      "vdd-l7-l12-l14-l15"),
	RPMH_VREG("ldo8",   "ldo%s8",  &pmic5_nldo,      "vdd-l1-l8-l11"),
	RPMH_VREG("ldo9",   "ldo%s9",  &pmic5_nldo,      "vdd-l6-l9"),
	RPMH_VREG("ldo10",  "ldo%s10", &pmic5_pldo,      "vdd-l2-l10"),
	RPMH_VREG("ldo11",  "ldo%s11", &pmic5_nldo,      "vdd-l1-l8-l11"),
	RPMH_VREG("ldo12",  "ldo%s12", &pmic5_pldo_lv,   "vdd-l7-l12-l14-l15"),
	RPMH_VREG("ldo13",  "ldo%s13", &pmic5_pldo,      "vdd-l13-l6-l17"),
	RPMH_VREG("ldo14",  "ldo%s14", &pmic5_pldo_lv,   "vdd-l7-l12-l14-l15"),
	RPMH_VREG("ldo15",  "ldo%s15", &pmic5_pldo_lv,   "vdd-l7-l12-l14-l15"),
	RPMH_VREG("ldo16",  "ldo%s16", &pmic5_pldo,      "vdd-l13-l6-l17"),
	RPMH_VREG("ldo17",  "ldo%s17", &pmic5_pldo,      "vdd-l13-l6-l17"),
	RPMH_VREG("ldo18",  "ldo%s18", &pmic5_nldo,      "vdd-l3-l4-l5-l18"),
	{},
};

static const struct rpmh_vreg_init_data pm8150l_vreg_data[] = {
	RPMH_VREG("smps1",  "smp%s1",  &pmic5_ftsmps510, "vdd-s1"),
	RPMH_VREG("smps2",  "smp%s2",  &pmic5_ftsmps510, "vdd-s2"),
	RPMH_VREG("smps3",  "smp%s3",  &pmic5_ftsmps510, "vdd-s3"),
	RPMH_VREG("smps4",  "smp%s4",  &pmic5_ftsmps510, "vdd-s4"),
	RPMH_VREG("smps5",  "smp%s5",  &pmic5_ftsmps510, "vdd-s5"),
	RPMH_VREG("smps6",  "smp%s6",  &pmic5_ftsmps510, "vdd-s6"),
	RPMH_VREG("smps7",  "smp%s7",  &pmic5_ftsmps510, "vdd-s7"),
	RPMH_VREG("smps8",  "smp%s8",  &pmic5_hfsmps510, "vdd-s8"),
	RPMH_VREG("ldo1",   "ldo%s1",  &pmic5_pldo_lv,   "vdd-l1-l8"),
	RPMH_VREG("ldo2",   "ldo%s2",  &pmic5_nldo,      "vdd-l2-l3"),
	RPMH_VREG("ldo3",   "ldo%s3",  &pmic5_nldo,      "vdd-l2-l3"),
	RPMH_VREG("ldo4",   "ldo%s4",  &pmic5_pldo,      "vdd-l4-l5-l6"),
	RPMH_VREG("ldo5",   "ldo%s5",  &pmic5_pldo,      "vdd-l4-l5-l6"),
	RPMH_VREG("ldo6",   "ldo%s6",  &pmic5_pldo,      "vdd-l4-l5-l6"),
	RPMH_VREG("ldo7",   "ldo%s7",  &pmic5_pldo,      "vdd-l7-l11"),
	RPMH_VREG("ldo8",   "ldo%s8",  &pmic5_pldo_lv,   "vdd-l1-l8-l11"),
	RPMH_VREG("ldo9",   "ldo%s9",  &pmic5_pldo,      "vdd-l9-l10"),
	RPMH_VREG("ldo10",  "ldo%s10", &pmic5_pldo,      "vdd-l9-l10"),
	RPMH_VREG("ldo11",  "ldo%s11", &pmic5_pldo,      "vdd-l7-l11"),
	RPMH_VREG("bob",    "bob%s1",  &pmic5_bob,       "vdd-bob"),
	{},
};

static const struct rpmh_vreg_init_data pm8009_vreg_data[] = {
	RPMH_VREG("smps1",  "smp%s1",  &pmic5_hfsmps510, "vdd-s1"),
	RPMH_VREG("smps2",  "smp%s2",  &pmic5_hfsmps515, "vdd-s2"),
	RPMH_VREG("ldo1",   "ldo%s1",  &pmic5_nldo,      "vdd-l1"),
	RPMH_VREG("ldo2",   "ldo%s2",  &pmic5_nldo,      "vdd-l2"),
	RPMH_VREG("ldo3",   "ldo%s3",  &pmic5_nldo,      "vdd-l3"),
	RPMH_VREG("ldo4",   "ldo%s4",  &pmic5_nldo,      "vdd-l4"),
	RPMH_VREG("ldo5",   "ldo%s5",  &pmic5_pldo,      "vdd-l5-l6"),
	RPMH_VREG("ldo6",   "ldo%s6",  &pmic5_pldo,      "vdd-l5-l6"),
	RPMH_VREG("ldo7",   "ldo%s6",  &pmic5_pldo_lv,   "vdd-l7"),
	{},
};

static int rpmh_regulator_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	const struct rpmh_vreg_init_data *vreg_data;
	struct device_node *node;
	struct rpmh_vreg *vreg;
	const char *pmic_id;
	int ret;

	vreg_data = of_device_get_match_data(dev);
	if (!vreg_data)
		return -ENODEV;

	ret = of_property_read_string(dev->of_node, "qcom,pmic-id", &pmic_id);
	if (ret < 0) {
		dev_err(dev, "qcom,pmic-id missing in DT node\n");
		return ret;
	}

	for_each_available_child_of_node(dev->of_node, node) {
		vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL);
		if (!vreg) {
			of_node_put(node);
			return -ENOMEM;
		}

		ret = rpmh_regulator_init_vreg(vreg, dev, node, pmic_id,
						vreg_data);
		if (ret < 0) {
			of_node_put(node);
			return ret;
		}
	}

	return 0;
}

static const struct of_device_id rpmh_regulator_match_table[] = {
	{
		.compatible = "qcom,pm8005-rpmh-regulators",
		.data = pm8005_vreg_data,
	},
	{
		.compatible = "qcom,pm8009-rpmh-regulators",
		.data = pm8009_vreg_data,
	},
	{
		.compatible = "qcom,pm8150-rpmh-regulators",
		.data = pm8150_vreg_data,
	},
	{
		.compatible = "qcom,pm8150l-rpmh-regulators",
		.data = pm8150l_vreg_data,
	},
	{
		.compatible = "qcom,pm8998-rpmh-regulators",
		.data = pm8998_vreg_data,
	},
	{
		.compatible = "qcom,pmi8998-rpmh-regulators",
		.data = pmi8998_vreg_data,
	},
	{}
};
MODULE_DEVICE_TABLE(of, rpmh_regulator_match_table);

static struct platform_driver rpmh_regulator_driver = {
	.driver = {
		.name = "qcom-rpmh-regulator",
		.of_match_table	= of_match_ptr(rpmh_regulator_match_table),
	},
	.probe = rpmh_regulator_probe,
};
module_platform_driver(rpmh_regulator_driver);

MODULE_DESCRIPTION("Qualcomm RPMh regulator driver");
MODULE_LICENSE("GPL v2");