aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/regmap.h
blob: f8bff272c42988355de6bb2f8b768821926e67da (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
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
#ifndef __LINUX_REGMAP_H
#define __LINUX_REGMAP_H

/*
 * Register map access API
 *
 * Copyright 2011 Wolfson Microelectronics plc
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.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.
 */

#include <linux/list.h>
#include <linux/rbtree.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/bug.h>
#include <linux/lockdep.h>

struct module;
struct device;
struct i2c_client;
struct irq_domain;
struct spi_device;
struct spmi_device;
struct regmap;
struct regmap_range_cfg;
struct regmap_field;
struct snd_ac97;

/* An enum of all the supported cache types */
enum regcache_type {
	REGCACHE_NONE,
	REGCACHE_RBTREE,
	REGCACHE_COMPRESSED,
	REGCACHE_FLAT,
};

/**
 * struct reg_default - Default value for a register.
 *
 * @reg: Register address.
 * @def: Register default value.
 *
 * We use an array of structs rather than a simple array as many modern devices
 * have very sparse register maps.
 */
struct reg_default {
	unsigned int reg;
	unsigned int def;
};

/**
 * struct reg_sequence - An individual write from a sequence of writes.
 *
 * @reg: Register address.
 * @def: Register value.
 * @delay_us: Delay to be applied after the register write in microseconds
 *
 * Register/value pairs for sequences of writes with an optional delay in
 * microseconds to be applied after each write.
 */
struct reg_sequence {
	unsigned int reg;
	unsigned int def;
	unsigned int delay_us;
};

#define	regmap_update_bits(map, reg, mask, val) \
	regmap_update_bits_base(map, reg, mask, val, NULL, false, false)
#define	regmap_update_bits_async(map, reg, mask, val)\
	regmap_update_bits_base(map, reg, mask, val, NULL, true, false)
#define	regmap_update_bits_check(map, reg, mask, val, change)\
	regmap_update_bits_base(map, reg, mask, val, change, false, false)
#define	regmap_update_bits_check_async(map, reg, mask, val, change)\
	regmap_update_bits_base(map, reg, mask, val, change, true, false)

#define	regmap_write_bits(map, reg, mask, val) \
	regmap_update_bits_base(map, reg, mask, val, NULL, false, true)

#define	regmap_field_write(field, val) \
	regmap_field_update_bits_base(field, ~0, val, NULL, false, false)
#define	regmap_field_force_write(field, val) \
	regmap_field_update_bits_base(field, ~0, val, NULL, false, true)
#define	regmap_field_update_bits(field, mask, val)\
	regmap_field_update_bits_base(field, mask, val, NULL, false, false)
#define	regmap_field_force_update_bits(field, mask, val) \
	regmap_field_update_bits_base(field, mask, val, NULL, false, true)

#define	regmap_fields_write(field, id, val) \
	regmap_fields_update_bits_base(field, id, ~0, val, NULL, false, false)
#define	regmap_fields_force_write(field, id, val) \
	regmap_fields_update_bits_base(field, id, ~0, val, NULL, false, true)
#define	regmap_fields_update_bits(field, id, mask, val)\
	regmap_fields_update_bits_base(field, id, mask, val, NULL, false, false)
#define	regmap_fields_force_update_bits(field, id, mask, val) \
	regmap_fields_update_bits_base(field, id, mask, val, NULL, false, true)

/**
 * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs
 *
 * @map: Regmap to read from
 * @addr: Address to poll
 * @val: Unsigned integer variable to read the value into
 * @cond: Break condition (usually involving @val)
 * @sleep_us: Maximum time to sleep between reads in us (0
 *            tight-loops).  Should be less than ~20ms since usleep_range
 *            is used (see Documentation/timers/timers-howto.txt).
 * @timeout_us: Timeout in us, 0 means never timeout
 *
 * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read
 * error return value in case of a error read. In the two former cases,
 * the last read value at @addr is stored in @val. Must not be called
 * from atomic context if sleep_us or timeout_us are used.
 *
 * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
 */
#define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \
({ \
	u64 __timeout_us = (timeout_us); \
	unsigned long __sleep_us = (sleep_us); \
	ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \
	int __ret; \
	might_sleep_if(__sleep_us); \
	for (;;) { \
		__ret = regmap_read((map), (addr), &(val)); \
		if (__ret) \
			break; \
		if (cond) \
			break; \
		if ((__timeout_us) && \
		    ktime_compare(ktime_get(), __timeout) > 0) { \
			__ret = regmap_read((map), (addr), &(val)); \
			break; \
		} \
		if (__sleep_us) \
			usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
	} \
	__ret ?: ((cond) ? 0 : -ETIMEDOUT); \
})

/**
 * regmap_field_read_poll_timeout - Poll until a condition is met or timeout
 *
 * @field: Regmap field to read from
 * @val: Unsigned integer variable to read the value into
 * @cond: Break condition (usually involving @val)
 * @sleep_us: Maximum time to sleep between reads in us (0
 *            tight-loops).  Should be less than ~20ms since usleep_range
 *            is used (see Documentation/timers/timers-howto.txt).
 * @timeout_us: Timeout in us, 0 means never timeout
 *
 * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read
 * error return value in case of a error read. In the two former cases,
 * the last read value at @addr is stored in @val. Must not be called
 * from atomic context if sleep_us or timeout_us are used.
 *
 * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
 */
#define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \
({ \
	u64 __timeout_us = (timeout_us); \
	unsigned long __sleep_us = (sleep_us); \
	ktime_t timeout = ktime_add_us(ktime_get(), __timeout_us); \
	int pollret; \
	might_sleep_if(__sleep_us); \
	for (;;) { \
		pollret = regmap_field_read((field), &(val)); \
		if (pollret) \
			break; \
		if (cond) \
			break; \
		if (__timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \
			pollret = regmap_field_read((field), &(val)); \
			break; \
		} \
		if (__sleep_us) \
			usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
	} \
	pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
})

#ifdef CONFIG_REGMAP

enum regmap_endian {
	/* Unspecified -> 0 -> Backwards compatible default */
	REGMAP_ENDIAN_DEFAULT = 0,
	REGMAP_ENDIAN_BIG,
	REGMAP_ENDIAN_LITTLE,
	REGMAP_ENDIAN_NATIVE,
};

/**
 * struct regmap_range - A register range, used for access related checks
 *                       (readable/writeable/volatile/precious checks)
 *
 * @range_min: address of first register
 * @range_max: address of last register
 */
struct regmap_range {
	unsigned int range_min;
	unsigned int range_max;
};

#define regmap_reg_range(low, high) { .range_min = low, .range_max = high, }

/**
 * struct regmap_access_table - A table of register ranges for access checks
 *
 * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges"
 * @n_yes_ranges: size of the above array
 * @no_ranges: pointer to an array of regmap ranges used as "no ranges"
 * @n_no_ranges: size of the above array
 *
 * A table of ranges including some yes ranges and some no ranges.
 * If a register belongs to a no_range, the corresponding check function
 * will return false. If a register belongs to a yes range, the corresponding
 * check function will return true. "no_ranges" are searched first.
 */
struct regmap_access_table {
	const struct regmap_range *yes_ranges;
	unsigned int n_yes_ranges;
	const struct regmap_range *no_ranges;
	unsigned int n_no_ranges;
};

typedef void (*regmap_lock)(void *);
typedef void (*regmap_unlock)(void *);

/**
 * struct regmap_config - Configuration for the register map of a device.
 *
 * @name: Optional name of the regmap. Useful when a device has multiple
 *        register regions.
 *
 * @reg_bits: Number of bits in a register address, mandatory.
 * @reg_stride: The register address stride. Valid register addresses are a
 *              multiple of this value. If set to 0, a value of 1 will be
 *              used.
 * @pad_bits: Number of bits of padding between register and value.
 * @val_bits: Number of bits in a register value, mandatory.
 *
 * @writeable_reg: Optional callback returning true if the register
 *		   can be written to. If this field is NULL but wr_table
 *		   (see below) is not, the check is performed on such table
 *                 (a register is writeable if it belongs to one of the ranges
 *                  specified by wr_table).
 * @readable_reg: Optional callback returning true if the register
 *		  can be read from. If this field is NULL but rd_table
 *		   (see below) is not, the check is performed on such table
 *                 (a register is readable if it belongs to one of the ranges
 *                  specified by rd_table).
 * @volatile_reg: Optional callback returning true if the register
 *		  value can't be cached. If this field is NULL but
 *		  volatile_table (see below) is not, the check is performed on
 *                such table (a register is volatile if it belongs to one of
 *                the ranges specified by volatile_table).
 * @precious_reg: Optional callback returning true if the register
 *		  should not be read outside of a call from the driver
 *		  (e.g., a clear on read interrupt status register). If this
 *                field is NULL but precious_table (see below) is not, the
 *                check is performed on such table (a register is precious if
 *                it belongs to one of the ranges specified by precious_table).
 * @lock:	  Optional lock callback (overrides regmap's default lock
 *		  function, based on spinlock or mutex).
 * @unlock:	  As above for unlocking.
 * @lock_arg:	  this field is passed as the only argument of lock/unlock
 *		  functions (ignored in case regular lock/unlock functions
 *		  are not overridden).
 * @reg_read:	  Optional callback that if filled will be used to perform
 *           	  all the reads from the registers. Should only be provided for
 *		  devices whose read operation cannot be represented as a simple
 *		  read operation on a bus such as SPI, I2C, etc. Most of the
 *		  devices do not need this.
 * @reg_write:	  Same as above for writing.
 * @fast_io:	  Register IO is fast. Use a spinlock instead of a mutex
 *	     	  to perform locking. This field is ignored if custom lock/unlock
 *	     	  functions are used (see fields lock/unlock of struct regmap_config).
 *		  This field is a duplicate of a similar file in
 *		  'struct regmap_bus' and serves exact same purpose.
 *		   Use it only for "no-bus" cases.
 * @max_register: Optional, specifies the maximum valid register address.
 * @wr_table:     Optional, points to a struct regmap_access_table specifying
 *                valid ranges for write access.
 * @rd_table:     As above, for read access.
 * @volatile_table: As above, for volatile registers.
 * @precious_table: As above, for precious registers.
 * @reg_defaults: Power on reset values for registers (for use with
 *                register cache support).
 * @num_reg_defaults: Number of elements in reg_defaults.
 *
 * @read_flag_mask: Mask to be set in the top bytes of the register when doing
 *                  a read.
 * @write_flag_mask: Mask to be set in the top bytes of the register when doing
 *                   a write. If both read_flag_mask and write_flag_mask are
 *                   empty and zero_flag_mask is not set the regmap_bus default
 *                   masks are used.
 * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even
 *                   if they are both empty.
 * @use_single_rw: If set, converts the bulk read and write operations into
 *		    a series of single read and write operations. This is useful
 *		    for device that does not support bulk read and write.
 * @can_multi_write: If set, the device supports the multi write mode of bulk
 *                   write operations, if clear multi write requests will be
 *                   split into individual write operations
 *
 * @cache_type: The actual cache type.
 * @reg_defaults_raw: Power on reset values for registers (for use with
 *                    register cache support).
 * @num_reg_defaults_raw: Number of elements in reg_defaults_raw.
 * @reg_format_endian: Endianness for formatted register addresses. If this is
 *                     DEFAULT, the @reg_format_endian_default value from the
 *                     regmap bus is used.
 * @val_format_endian: Endianness for formatted register values. If this is
 *                     DEFAULT, the @reg_format_endian_default value from the
 *                     regmap bus is used.
 *
 * @ranges: Array of configuration entries for virtual address ranges.
 * @num_ranges: Number of range configuration entries.
 * @hwlock_id: Specify the hardware spinlock id.
 * @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE,
 *		 HWLOCK_IRQ or 0.
 */
struct regmap_config {
	const char *name;

	int reg_bits;
	int reg_stride;
	int pad_bits;
	int val_bits;

	bool (*writeable_reg)(struct device *dev, unsigned int reg);
	bool (*readable_reg)(struct device *dev, unsigned int reg);
	bool (*volatile_reg)(struct device *dev, unsigned int reg);
	bool (*precious_reg)(struct device *dev, unsigned int reg);
	regmap_lock lock;
	regmap_unlock unlock;
	void *lock_arg;

	int (*reg_read)(void *context, unsigned int reg, unsigned int *val);
	int (*reg_write)(void *context, unsigned int reg, unsigned int val);

	bool fast_io;

	unsigned int max_register;
	const struct regmap_access_table *wr_table;
	const struct regmap_access_table *rd_table;
	const struct regmap_access_table *volatile_table;
	const struct regmap_access_table *precious_table;
	const struct reg_default *reg_defaults;
	unsigned int num_reg_defaults;
	enum regcache_type cache_type;
	const void *reg_defaults_raw;
	unsigned int num_reg_defaults_raw;

	unsigned long read_flag_mask;
	unsigned long write_flag_mask;
	bool zero_flag_mask;

	bool use_single_rw;
	bool can_multi_write;

	enum regmap_endian reg_format_endian;
	enum regmap_endian val_format_endian;

	const struct regmap_range_cfg *ranges;
	unsigned int num_ranges;

	unsigned int hwlock_id;
	unsigned int hwlock_mode;
};

/**
 * struct regmap_range_cfg - Configuration for indirectly accessed or paged
 *                           registers.
 *
 * @name: Descriptive name for diagnostics
 *
 * @range_min: Address of the lowest register address in virtual range.
 * @range_max: Address of the highest register in virtual range.
 *
 * @selector_reg: Register with selector field.
 * @selector_mask: Bit shift for selector value.
 * @selector_shift: Bit mask for selector value.
 *
 * @window_start: Address of first (lowest) register in data window.
 * @window_len: Number of registers in data window.
 *
 * Registers, mapped to this virtual range, are accessed in two steps:
 *     1. page selector register update;
 *     2. access through data window registers.
 */
struct regmap_range_cfg {
	const char *name;

	/* Registers of virtual address range */
	unsigned int range_min;
	unsigned int range_max;

	/* Page selector for indirect addressing */
	unsigned int selector_reg;
	unsigned int selector_mask;
	int selector_shift;

	/* Data window (per each page) */
	unsigned int window_start;
	unsigned int window_len;
};

struct regmap_async;

typedef int (*regmap_hw_write)(void *context, const void *data,
			       size_t count);
typedef int (*regmap_hw_gather_write)(void *context,
				      const void *reg, size_t reg_len,
				      const void *val, size_t val_len);
typedef int (*regmap_hw_async_write)(void *context,
				     const void *reg, size_t reg_len,
				     const void *val, size_t val_len,
				     struct regmap_async *async);
typedef int (*regmap_hw_read)(void *context,
			      const void *reg_buf, size_t reg_size,
			      void *val_buf, size_t val_size);
typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg,
				  unsigned int *val);
typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg,
				   unsigned int val);
typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg,
					 unsigned int mask, unsigned int val);
typedef struct regmap_async *(*regmap_hw_async_alloc)(void);
typedef void (*regmap_hw_free_context)(void *context);

/**
 * struct regmap_bus - Description of a hardware bus for the register map
 *                     infrastructure.
 *
 * @fast_io: Register IO is fast. Use a spinlock instead of a mutex
 *	     to perform locking. This field is ignored if custom lock/unlock
 *	     functions are used (see fields lock/unlock of
 *	     struct regmap_config).
 * @write: Write operation.
 * @gather_write: Write operation with split register/value, return -ENOTSUPP
 *                if not implemented  on a given device.
 * @async_write: Write operation which completes asynchronously, optional and
 *               must serialise with respect to non-async I/O.
 * @reg_write: Write a single register value to the given register address. This
 *             write operation has to complete when returning from the function.
 * @reg_update_bits: Update bits operation to be used against volatile
 *                   registers, intended for devices supporting some mechanism
 *                   for setting clearing bits without having to
 *                   read/modify/write.
 * @read: Read operation.  Data is returned in the buffer used to transmit
 *         data.
 * @reg_read: Read a single register value from a given register address.
 * @free_context: Free context.
 * @async_alloc: Allocate a regmap_async() structure.
 * @read_flag_mask: Mask to be set in the top byte of the register when doing
 *                  a read.
 * @reg_format_endian_default: Default endianness for formatted register
 *     addresses. Used when the regmap_config specifies DEFAULT. If this is
 *     DEFAULT, BIG is assumed.
 * @val_format_endian_default: Default endianness for formatted register
 *     values. Used when the regmap_config specifies DEFAULT. If this is
 *     DEFAULT, BIG is assumed.
 * @max_raw_read: Max raw read size that can be used on the bus.
 * @max_raw_write: Max raw write size that can be used on the bus.
 */
struct regmap_bus {
	bool fast_io;
	regmap_hw_write write;
	regmap_hw_gather_write gather_write;
	regmap_hw_async_write async_write;
	regmap_hw_reg_write reg_write;
	regmap_hw_reg_update_bits reg_update_bits;
	regmap_hw_read read;
	regmap_hw_reg_read reg_read;
	regmap_hw_free_context free_context;
	regmap_hw_async_alloc async_alloc;
	u8 read_flag_mask;
	enum regmap_endian reg_format_endian_default;
	enum regmap_endian val_format_endian_default;
	size_t max_raw_read;
	size_t max_raw_write;
};

/*
 * __regmap_init functions.
 *
 * These functions take a lock key and name parameter, and should not be called
 * directly. Instead, use the regmap_init macros that generate a key and name
 * for each call.
 */
struct regmap *__regmap_init(struct device *dev,
			     const struct regmap_bus *bus,
			     void *bus_context,
			     const struct regmap_config *config,
			     struct lock_class_key *lock_key,
			     const char *lock_name);
struct regmap *__regmap_init_i2c(struct i2c_client *i2c,
				 const struct regmap_config *config,
				 struct lock_class_key *lock_key,
				 const char *lock_name);
struct regmap *__regmap_init_spi(struct spi_device *dev,
				 const struct regmap_config *config,
				 struct lock_class_key *lock_key,
				 const char *lock_name);
struct regmap *__regmap_init_spmi_base(struct spmi_device *dev,
				       const struct regmap_config *config,
				       struct lock_class_key *lock_key,
				       const char *lock_name);
struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev,
				      const struct regmap_config *config,
				      struct lock_class_key *lock_key,
				      const char *lock_name);
struct regmap *__regmap_init_w1(struct device *w1_dev,
				 const struct regmap_config *config,
				 struct lock_class_key *lock_key,
				 const char *lock_name);
struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id,
				      void __iomem *regs,
				      const struct regmap_config *config,
				      struct lock_class_key *lock_key,
				      const char *lock_name);
struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97,
				  const struct regmap_config *config,
				  struct lock_class_key *lock_key,
				  const char *lock_name);

struct regmap *__devm_regmap_init(struct device *dev,
				  const struct regmap_bus *bus,
				  void *bus_context,
				  const struct regmap_config *config,
				  struct lock_class_key *lock_key,
				  const char *lock_name);
struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c,
				      const struct regmap_config *config,
				      struct lock_class_key *lock_key,
				      const char *lock_name);
struct regmap *__devm_regmap_init_spi(struct spi_device *dev,
				      const struct regmap_config *config,
				      struct lock_class_key *lock_key,
				      const char *lock_name);
struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev,
					    const struct regmap_config *config,
					    struct lock_class_key *lock_key,
					    const char *lock_name);
struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev,
					   const struct regmap_config *config,
					   struct lock_class_key *lock_key,
					   const char *lock_name);
struct regmap *__devm_regmap_init_w1(struct device *w1_dev,
				      const struct regmap_config *config,
				      struct lock_class_key *lock_key,
				      const char *lock_name);
struct regmap *__devm_regmap_init_mmio_clk(struct device *dev,
					   const char *clk_id,
					   void __iomem *regs,
					   const struct regmap_config *config,
					   struct lock_class_key *lock_key,
					   const char *lock_name);
struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97,
				       const struct regmap_config *config,
				       struct lock_class_key *lock_key,
				       const char *lock_name);

/*
 * Wrapper for regmap_init macros to include a unique lockdep key and name
 * for each call. No-op if CONFIG_LOCKDEP is not set.
 *
 * @fn: Real function to call (in the form __[*_]regmap_init[_*])
 * @name: Config variable name (#config in the calling macro)
 **/
#ifdef CONFIG_LOCKDEP
#define __regmap_lockdep_wrapper(fn, name, ...)				\
(									\
	({								\
		static struct lock_class_key _key;			\
		fn(__VA_ARGS__, &_key,					\
			KBUILD_BASENAME ":"				\
			__stringify(__LINE__) ":"			\
			"(" name ")->lock");				\
	})								\
)
#else
#define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL)
#endif

/**
 * regmap_init() - Initialise register map
 *
 * @dev: Device that will be interacted with
 * @bus: Bus-specific callbacks to use with device
 * @bus_context: Data passed to bus-specific callbacks
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.  This function should generally not be called
 * directly, it should be called by bus-specific init functions.
 */
#define regmap_init(dev, bus, bus_context, config)			\
	__regmap_lockdep_wrapper(__regmap_init, #config,		\
				dev, bus, bus_context, config)
int regmap_attach_dev(struct device *dev, struct regmap *map,
		      const struct regmap_config *config);

/**
 * regmap_init_i2c() - Initialise register map
 *
 * @i2c: Device that will be interacted with
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.
 */
#define regmap_init_i2c(i2c, config)					\
	__regmap_lockdep_wrapper(__regmap_init_i2c, #config,		\
				i2c, config)

/**
 * regmap_init_spi() - Initialise register map
 *
 * @dev: Device that will be interacted with
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.
 */
#define regmap_init_spi(dev, config)					\
	__regmap_lockdep_wrapper(__regmap_init_spi, #config,		\
				dev, config)

/**
 * regmap_init_spmi_base() - Create regmap for the Base register space
 *
 * @dev:	SPMI device that will be interacted with
 * @config:	Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.
 */
#define regmap_init_spmi_base(dev, config)				\
	__regmap_lockdep_wrapper(__regmap_init_spmi_base, #config,	\
				dev, config)

/**
 * regmap_init_spmi_ext() - Create regmap for Ext register space
 *
 * @dev:	Device that will be interacted with
 * @config:	Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.
 */
#define regmap_init_spmi_ext(dev, config)				\
	__regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config,	\
				dev, config)

/**
 * regmap_init_w1() - Initialise register map
 *
 * @w1_dev: Device that will be interacted with
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.
 */
#define regmap_init_w1(w1_dev, config)					\
	__regmap_lockdep_wrapper(__regmap_init_w1, #config,		\
				w1_dev, config)

/**
 * regmap_init_mmio_clk() - Initialise register map with register clock
 *
 * @dev: Device that will be interacted with
 * @clk_id: register clock consumer ID
 * @regs: Pointer to memory-mapped IO region
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.
 */
#define regmap_init_mmio_clk(dev, clk_id, regs, config)			\
	__regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config,	\
				dev, clk_id, regs, config)

/**
 * regmap_init_mmio() - Initialise register map
 *
 * @dev: Device that will be interacted with
 * @regs: Pointer to memory-mapped IO region
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.
 */
#define regmap_init_mmio(dev, regs, config)		\
	regmap_init_mmio_clk(dev, NULL, regs, config)

/**
 * regmap_init_ac97() - Initialise AC'97 register map
 *
 * @ac97: Device that will be interacted with
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer to
 * a struct regmap.
 */
#define regmap_init_ac97(ac97, config)					\
	__regmap_lockdep_wrapper(__regmap_init_ac97, #config,		\
				ac97, config)
bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);

/**
 * devm_regmap_init() - Initialise managed register map
 *
 * @dev: Device that will be interacted with
 * @bus: Bus-specific callbacks to use with device
 * @bus_context: Data passed to bus-specific callbacks
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  This function should generally not be called
 * directly, it should be called by bus-specific init functions.  The
 * map will be automatically freed by the device management code.
 */
#define devm_regmap_init(dev, bus, bus_context, config)			\
	__regmap_lockdep_wrapper(__devm_regmap_init, #config,		\
				dev, bus, bus_context, config)

/**
 * devm_regmap_init_i2c() - Initialise managed register map
 *
 * @i2c: Device that will be interacted with
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  The regmap will be automatically freed by the
 * device management code.
 */
#define devm_regmap_init_i2c(i2c, config)				\
	__regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config,	\
				i2c, config)

/**
 * devm_regmap_init_spi() - Initialise register map
 *
 * @dev: Device that will be interacted with
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  The map will be automatically freed by the
 * device management code.
 */
#define devm_regmap_init_spi(dev, config)				\
	__regmap_lockdep_wrapper(__devm_regmap_init_spi, #config,	\
				dev, config)

/**
 * devm_regmap_init_spmi_base() - Create managed regmap for Base register space
 *
 * @dev:	SPMI device that will be interacted with
 * @config:	Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  The regmap will be automatically freed by the
 * device management code.
 */
#define devm_regmap_init_spmi_base(dev, config)				\
	__regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config,	\
				dev, config)

/**
 * devm_regmap_init_spmi_ext() - Create managed regmap for Ext register space
 *
 * @dev:	SPMI device that will be interacted with
 * @config:	Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  The regmap will be automatically freed by the
 * device management code.
 */
#define devm_regmap_init_spmi_ext(dev, config)				\
	__regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config,	\
				dev, config)

/**
 * devm_regmap_init_w1() - Initialise managed register map
 *
 * @w1_dev: Device that will be interacted with
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  The regmap will be automatically freed by the
 * device management code.
 */
#define devm_regmap_init_w1(w1_dev, config)				\
	__regmap_lockdep_wrapper(__devm_regmap_init_w1, #config,	\
				w1_dev, config)
/**
 * devm_regmap_init_mmio_clk() - Initialise managed register map with clock
 *
 * @dev: Device that will be interacted with
 * @clk_id: register clock consumer ID
 * @regs: Pointer to memory-mapped IO region
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  The regmap will be automatically freed by the
 * device management code.
 */
#define devm_regmap_init_mmio_clk(dev, clk_id, regs, config)		\
	__regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config,	\
				dev, clk_id, regs, config)

/**
 * devm_regmap_init_mmio() - Initialise managed register map
 *
 * @dev: Device that will be interacted with
 * @regs: Pointer to memory-mapped IO region
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  The regmap will be automatically freed by the
 * device management code.
 */
#define devm_regmap_init_mmio(dev, regs, config)		\
	devm_regmap_init_mmio_clk(dev, NULL, regs, config)

/**
 * devm_regmap_init_ac97() - Initialise AC'97 register map
 *
 * @ac97: Device that will be interacted with
 * @config: Configuration for register map
 *
 * The return value will be an ERR_PTR() on error or a valid pointer
 * to a struct regmap.  The regmap will be automatically freed by the
 * device management code.
 */
#define devm_regmap_init_ac97(ac97, config)				\
	__regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config,	\
				ac97, config)

void regmap_exit(struct regmap *map);
int regmap_reinit_cache(struct regmap *map,
			const struct regmap_config *config);
struct regmap *dev_get_regmap(struct device *dev, const char *name);
struct device *regmap_get_device(struct regmap *map);
int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val);
int regmap_raw_write(struct regmap *map, unsigned int reg,
		     const void *val, size_t val_len);
int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
			size_t val_count);
int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs,
			int num_regs);
int regmap_multi_reg_write_bypassed(struct regmap *map,
				    const struct reg_sequence *regs,
				    int num_regs);
int regmap_raw_write_async(struct regmap *map, unsigned int reg,
			   const void *val, size_t val_len);
int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
int regmap_raw_read(struct regmap *map, unsigned int reg,
		    void *val, size_t val_len);
int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
		     size_t val_count);
int regmap_update_bits_base(struct regmap *map, unsigned int reg,
			    unsigned int mask, unsigned int val,
			    bool *change, bool async, bool force);
int regmap_get_val_bytes(struct regmap *map);
int regmap_get_max_register(struct regmap *map);
int regmap_get_reg_stride(struct regmap *map);
int regmap_async_complete(struct regmap *map);
bool regmap_can_raw_write(struct regmap *map);
size_t regmap_get_raw_read_max(struct regmap *map);
size_t regmap_get_raw_write_max(struct regmap *map);

int regcache_sync(struct regmap *map);
int regcache_sync_region(struct regmap *map, unsigned int min,
			 unsigned int max);
int regcache_drop_region(struct regmap *map, unsigned int min,
			 unsigned int max);
void regcache_cache_only(struct regmap *map, bool enable);
void regcache_cache_bypass(struct regmap *map, bool enable);
void regcache_mark_dirty(struct regmap *map);

bool regmap_check_range_table(struct regmap *map, unsigned int reg,
			      const struct regmap_access_table *table);

int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs,
			  int num_regs);
int regmap_parse_val(struct regmap *map, const void *buf,
				unsigned int *val);

static inline bool regmap_reg_in_range(unsigned int reg,
				       const struct regmap_range *range)
{
	return reg >= range->range_min && reg <= range->range_max;
}

bool regmap_reg_in_ranges(unsigned int reg,
			  const struct regmap_range *ranges,
			  unsigned int nranges);

/**
 * struct reg_field - Description of an register field
 *
 * @reg: Offset of the register within the regmap bank
 * @lsb: lsb of the register field.
 * @msb: msb of the register field.
 * @id_size: port size if it has some ports
 * @id_offset: address offset for each ports
 */
struct reg_field {
	unsigned int reg;
	unsigned int lsb;
	unsigned int msb;
	unsigned int id_size;
	unsigned int id_offset;
};

#define REG_FIELD(_reg, _lsb, _msb) {		\
				.reg = _reg,	\
				.lsb = _lsb,	\
				.msb = _msb,	\
				}

struct regmap_field *regmap_field_alloc(struct regmap *regmap,
		struct reg_field reg_field);
void regmap_field_free(struct regmap_field *field);

struct regmap_field *devm_regmap_field_alloc(struct device *dev,
		struct regmap *regmap, struct reg_field reg_field);
void devm_regmap_field_free(struct device *dev,	struct regmap_field *field);

int regmap_field_read(struct regmap_field *field, unsigned int *val);
int regmap_field_update_bits_base(struct regmap_field *field,
				  unsigned int mask, unsigned int val,
				  bool *change, bool async, bool force);
int regmap_fields_read(struct regmap_field *field, unsigned int id,
		       unsigned int *val);
int regmap_fields_update_bits_base(struct regmap_field *field,  unsigned int id,
				   unsigned int mask, unsigned int val,
				   bool *change, bool async, bool force);

/**
 * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip.
 *
 * @reg_offset: Offset of the status/mask register within the bank
 * @mask:       Mask used to flag/control the register.
 * @type_reg_offset: Offset register for the irq type setting.
 * @type_rising_mask: Mask bit to configure RISING type irq.
 * @type_falling_mask: Mask bit to configure FALLING type irq.
 */
struct regmap_irq {
	unsigned int reg_offset;
	unsigned int mask;
	unsigned int type_reg_offset;
	unsigned int type_rising_mask;
	unsigned int type_falling_mask;
};

#define REGMAP_IRQ_REG(_irq, _off, _mask)		\
	[_irq] = { .reg_offset = (_off), .mask = (_mask) }

/**
 * struct regmap_irq_chip - Description of a generic regmap irq_chip.
 *
 * @name:        Descriptive name for IRQ controller.
 *
 * @status_base: Base status register address.
 * @mask_base:   Base mask register address.
 * @mask_writeonly: Base mask register is write only.
 * @unmask_base:  Base unmask register address. for chips who have
 *                separate mask and unmask registers
 * @ack_base:    Base ack address. If zero then the chip is clear on read.
 *               Using zero value is possible with @use_ack bit.
 * @wake_base:   Base address for wake enables.  If zero unsupported.
 * @type_base:   Base address for irq type.  If zero unsupported.
 * @irq_reg_stride:  Stride to use for chips where registers are not contiguous.
 * @init_ack_masked: Ack all masked interrupts once during initalization.
 * @mask_invert: Inverted mask register: cleared bits are masked out.
 * @use_ack:     Use @ack register even if it is zero.
 * @ack_invert:  Inverted ack register: cleared bits for ack.
 * @wake_invert: Inverted wake register: cleared bits are wake enabled.
 * @type_invert: Invert the type flags.
 * @runtime_pm:  Hold a runtime PM lock on the device when accessing it.
 *
 * @num_regs:    Number of registers in each control bank.
 * @irqs:        Descriptors for individual IRQs.  Interrupt numbers are
 *               assigned based on the index in the array of the interrupt.
 * @num_irqs:    Number of descriptors.
 * @num_type_reg:    Number of type registers.
 * @type_reg_stride: Stride to use for chips where type registers are not
 *			contiguous.
 * @handle_pre_irq:  Driver specific callback to handle interrupt from device
 *		     before regmap_irq_handler process the interrupts.
 * @handle_post_irq: Driver specific callback to handle interrupt from device
 *		     after handling the interrupts in regmap_irq_handler().
 * @irq_drv_data:    Driver specific IRQ data which is passed as parameter when
 *		     driver specific pre/post interrupt handler is called.
 *
 * This is not intended to handle every possible interrupt controller, but
 * it should handle a substantial proportion of those that are found in the
 * wild.
 */
struct regmap_irq_chip {
	const char *name;

	unsigned int status_base;
	unsigned int mask_base;
	unsigned int unmask_base;
	unsigned int ack_base;
	unsigned int wake_base;
	unsigned int type_base;
	unsigned int irq_reg_stride;
	bool mask_writeonly:1;
	bool init_ack_masked:1;
	bool mask_invert:1;
	bool use_ack:1;
	bool ack_invert:1;
	bool wake_invert:1;
	bool runtime_pm:1;
	bool type_invert:1;

	int num_regs;

	const struct regmap_irq *irqs;
	int num_irqs;

	int num_type_reg;
	unsigned int type_reg_stride;

	int (*handle_pre_irq)(void *irq_drv_data);
	int (*handle_post_irq)(void *irq_drv_data);
	void *irq_drv_data;
};

struct regmap_irq_chip_data;

int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
			int irq_base, const struct regmap_irq_chip *chip,
			struct regmap_irq_chip_data **data);
void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data);

int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq,
			     int irq_flags, int irq_base,
			     const struct regmap_irq_chip *chip,
			     struct regmap_irq_chip_data **data);
void devm_regmap_del_irq_chip(struct device *dev, int irq,
			      struct regmap_irq_chip_data *data);

int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data);
int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq);
struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data);

#else

/*
 * These stubs should only ever be called by generic code which has
 * regmap based facilities, if they ever get called at runtime
 * something is going wrong and something probably needs to select
 * REGMAP.
 */

static inline int regmap_write(struct regmap *map, unsigned int reg,
			       unsigned int val)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_write_async(struct regmap *map, unsigned int reg,
				     unsigned int val)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_raw_write(struct regmap *map, unsigned int reg,
				   const void *val, size_t val_len)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg,
					 const void *val, size_t val_len)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_bulk_write(struct regmap *map, unsigned int reg,
				    const void *val, size_t val_count)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_read(struct regmap *map, unsigned int reg,
			      unsigned int *val)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_raw_read(struct regmap *map, unsigned int reg,
				  void *val, size_t val_len)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_bulk_read(struct regmap *map, unsigned int reg,
				   void *val, size_t val_count)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg,
					  unsigned int mask, unsigned int val,
					  bool *change, bool async, bool force)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_field_update_bits_base(struct regmap_field *field,
					unsigned int mask, unsigned int val,
					bool *change, bool async, bool force)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_fields_update_bits_base(struct regmap_field *field,
				   unsigned int id,
				   unsigned int mask, unsigned int val,
				   bool *change, bool async, bool force)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_get_val_bytes(struct regmap *map)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_get_max_register(struct regmap *map)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_get_reg_stride(struct regmap *map)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regcache_sync(struct regmap *map)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regcache_sync_region(struct regmap *map, unsigned int min,
				       unsigned int max)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regcache_drop_region(struct regmap *map, unsigned int min,
				       unsigned int max)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline void regcache_cache_only(struct regmap *map, bool enable)
{
	WARN_ONCE(1, "regmap API is disabled");
}

static inline void regcache_cache_bypass(struct regmap *map, bool enable)
{
	WARN_ONCE(1, "regmap API is disabled");
}

static inline void regcache_mark_dirty(struct regmap *map)
{
	WARN_ONCE(1, "regmap API is disabled");
}

static inline void regmap_async_complete(struct regmap *map)
{
	WARN_ONCE(1, "regmap API is disabled");
}

static inline int regmap_register_patch(struct regmap *map,
					const struct reg_sequence *regs,
					int num_regs)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline int regmap_parse_val(struct regmap *map, const void *buf,
				unsigned int *val)
{
	WARN_ONCE(1, "regmap API is disabled");
	return -EINVAL;
}

static inline struct regmap *dev_get_regmap(struct device *dev,
					    const char *name)
{
	return NULL;
}

static inline struct device *regmap_get_device(struct regmap *map)
{
	WARN_ONCE(1, "regmap API is disabled");
	return NULL;
}

#endif

#endif

Privacy Policy