Blame view

kernel/linux-imx6_3.14.28/drivers/regulator/Kconfig 18.3 KB
6b13f685e   김민수   BSP 최초 추가
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
  menuconfig REGULATOR
  	bool "Voltage and Current Regulator Support"
  	help
  	  Generic Voltage and Current Regulator support.
  
  	  This framework is designed to provide a generic interface to voltage
  	  and current regulators within the Linux kernel. It's intended to
  	  provide voltage and current control to client or consumer drivers and
  	  also provide status information to user space applications through a
  	  sysfs interface.
  
  	  The intention is to allow systems to dynamically control regulator
  	  output in order to save power and prolong battery life. This applies
  	  to both voltage regulators (where voltage output is controllable) and
  	  current sinks (where current output is controllable).
  
  	  This framework safely compiles out if not selected so that client
  	  drivers can still be used in systems with no software controllable
  	  regulators.
  
  	  If unsure, say no.
  
  
  if REGULATOR
  
  config REGULATOR_DEBUG
  	bool "Regulator debug support"
  	help
  	  Say yes here to enable debugging support.
  
  config REGULATOR_FIXED_VOLTAGE
  	tristate "Fixed voltage regulator support"
  	help
  	  This driver provides support for fixed voltage regulators,
  	  useful for systems which use a combination of software
  	  managed regulators and simple non-configurable regulators.
  
  config REGULATOR_VIRTUAL_CONSUMER
  	tristate "Virtual regulator consumer support"
  	help
  	  This driver provides a virtual consumer for the voltage and
  	  current regulator API which provides sysfs controls for
  	  configuring the supplies requested.  This is mainly useful
  	  for test purposes.
  
  	  If unsure, say no.
  
  config REGULATOR_USERSPACE_CONSUMER
  	tristate "Userspace regulator consumer support"
  	help
  	  There are some classes of devices that are controlled entirely
  	  from user space. Userspace consumer driver provides ability to
  	  control power supplies for such devices.
  
  	  If unsure, say no.
  
  config REGULATOR_88PM800
  	tristate "Marvell 88PM800 Power regulators"
  	depends on MFD_88PM800
  	help
  	  This driver supports Marvell 88PM800 voltage regulator chips.
  	  It delivers digitally programmable output,
  	  the voltage is programmed via I2C interface.
  	  It's suitable to support PXA988 chips to control VCC_MAIN and
  	  various voltages.
  
  config REGULATOR_88PM8607
  	tristate "Marvell 88PM8607 Power regulators"
  	depends on MFD_88PM860X=y
  	help
  	  This driver supports 88PM8607 voltage regulator chips.
  
  config REGULATOR_ACT8865
  	tristate "Active-semi act8865 voltage regulator"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  This driver controls a active-semi act8865 voltage output
  	  regulator via I2C bus.
  
  config REGULATOR_AD5398
  	tristate "Analog Devices AD5398/AD5821 regulators"
  	depends on I2C
  	help
  	  This driver supports AD5398 and AD5821 current regulator chips.
  	  If building into module, its name is ad5398.ko.
  
  config REGULATOR_ANATOP
  	tristate "Freescale i.MX on-chip ANATOP LDO regulators"
  	depends on MFD_SYSCON
  	help
  	  Say y here to support Freescale i.MX on-chip ANATOP LDOs
  	  regulators. It is recommended that this option be
  	  enabled on i.MX6 platform.
  
  config REGULATOR_AAT2870
  	tristate "AnalogicTech AAT2870 Regulators"
  	depends on MFD_AAT2870_CORE
  	help
  	  If you have a AnalogicTech AAT2870 say Y to enable the
  	  regulator driver.
  
  config REGULATOR_AB3100
  	tristate "ST-Ericsson AB3100 Regulator functions"
  	depends on AB3100_CORE
  	default y if AB3100_CORE
  	help
  	 These regulators correspond to functionality in the
  	 AB3100 analog baseband dealing with power regulators
  	 for the system.
  
  config REGULATOR_AB8500
  	bool "ST-Ericsson AB8500 Power Regulators"
  	depends on AB8500_CORE
  	help
  	  This driver supports the regulators found on the ST-Ericsson mixed
  	  signal AB8500 PMIC
  
  config REGULATOR_ARIZONA
  	tristate "Wolfson Arizona class devices"
  	depends on MFD_ARIZONA
  	depends on SND_SOC
  	help
  	  Support for the regulators found on Wolfson Arizona class
  	  devices.
  
  config REGULATOR_AS3711
  	tristate "AS3711 PMIC"
  	depends on MFD_AS3711
  	help
  	  This driver provides support for the voltage regulators on the
  	  AS3711 PMIC
  
  config REGULATOR_AS3722
  	tristate "AMS AS3722 PMIC Regulators"
  	depends on MFD_AS3722
  	help
  	  This driver provides support for the voltage regulators on the
  	  AS3722 PMIC. This will enable support for all the software
  	  controllable DCDC/LDO regulators.
  
  config REGULATOR_DA903X
  	tristate "Dialog Semiconductor DA9030/DA9034 regulators"
  	depends on PMIC_DA903X
  	help
  	  Say y here to support the BUCKs and LDOs regulators found on
  	  Dialog Semiconductor DA9030/DA9034 PMIC.
  
  config REGULATOR_DA9052
  	tristate "Dialog Semiconductor DA9052/DA9053 regulators"
  	depends on PMIC_DA9052
  	help
  	  This driver supports the voltage regulators of DA9052-BC and
  	  DA9053-AA/Bx PMIC.
  
  config REGULATOR_DA9055
  	tristate "Dialog Semiconductor DA9055 regulators"
  	depends on MFD_DA9055
  	help
  	  Say y here to support the BUCKs and LDOs regulators found on
  	  Dialog Semiconductor DA9055 PMIC.
  
  	  This driver can also be built as a module. If so, the module
  	  will be called da9055-regulator.
  
  config REGULATOR_DA9063
  	tristate "Dialog Semiconductor DA9063 regulators"
  	depends on MFD_DA9063
  	help
  	  Say y here to support the BUCKs and LDOs regulators found on
  	  DA9063 PMICs.
  
  	  This driver can also be built as a module. If so, the module
  	  will be called da9063-regulator.
  
  config REGULATOR_DA9210
  	tristate "Dialog Semiconductor DA9210 regulator"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  Say y here to support for the Dialog Semiconductor DA9210.
  	  The DA9210 is a multi-phase synchronous step down
  	  converter 12A DC-DC Buck controlled through an I2C
  	  interface.
  
  config REGULATOR_DBX500_PRCMU
  	bool
  
  config REGULATOR_DB8500_PRCMU
  	bool "ST-Ericsson DB8500 Voltage Domain Regulators"
  	depends on MFD_DB8500_PRCMU
  	select REGULATOR_DBX500_PRCMU
  	help
  	  This driver supports the voltage domain regulators controlled by the
  	  DB8500 PRCMU
  
  config REGULATOR_FAN53555
  	tristate "Fairchild FAN53555 Regulator"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  This driver supports Fairchild FAN53555 Digitally Programmable
  	  TinyBuck Regulator. The FAN53555 is a step-down switching voltage
  	  regulator that delivers a digitally programmable output from an
  	  input voltage supply of 2.5V to 5.5V. The output voltage is
  	  programmed through an I2C interface.
  
  config REGULATOR_GPIO
  	tristate "GPIO regulator support"
  	depends on GPIOLIB
  	help
  	  This driver provides support for regulators that can be
  	  controlled via gpios.
  	  It is capable of supporting current and voltage regulators
  	  and the platform has to provide a mapping of GPIO-states
  	  to target volts/amps.
  
  config REGULATOR_ISL6271A
  	tristate "Intersil ISL6271A Power regulator"
  	depends on I2C
  	help
  	  This driver supports ISL6271A voltage regulator chip.
  
  config REGULATOR_LP3971
  	tristate "National Semiconductors LP3971 PMIC regulator driver"
  	depends on I2C
  	help
  	 Say Y here to support the voltage regulators and convertors
  	 on National Semiconductors LP3971 PMIC
  
  config REGULATOR_LP3972
  	tristate "National Semiconductors LP3972 PMIC regulator driver"
  	depends on I2C
  	help
  	 Say Y here to support the voltage regulators and convertors
  	 on National Semiconductors LP3972 PMIC
  
  config REGULATOR_LP872X
  	tristate "TI/National Semiconductor LP8720/LP8725 voltage regulators"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  This driver supports LP8720/LP8725 PMIC
  
  config REGULATOR_LP8755
  	tristate "TI LP8755 High Performance PMU driver"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  This driver supports LP8755 High Performance PMU driver. This
  	  chip contains six step-down DC/DC converters which can support
  	  9 mode multiphase configuration.
  
  config REGULATOR_LP8788
  	tristate "TI LP8788 Power Regulators"
  	depends on MFD_LP8788
  	help
  	  This driver supports LP8788 voltage regulator chip.
  
  config REGULATOR_MAX14577
  	tristate "Maxim 14577 regulator"
  	depends on MFD_MAX14577
  	help
  	  This driver controls a Maxim 14577 regulator via I2C bus.
  	  The regulators include safeout LDO and current regulator 'CHARGER'.
  
  config REGULATOR_MAX1586
  	tristate "Maxim 1586/1587 voltage regulator"
  	depends on I2C
  	help
  	  This driver controls a Maxim 1586 or 1587 voltage output
  	  regulator via I2C bus. The provided regulator is suitable
  	  for PXA27x chips to control VCC_CORE and VCC_USIM voltages.
  
  config REGULATOR_MAX17135
          tristate "Maxim MAX17135 Regulator Support"
          depends on MFD_MAX17135
  
  config REGULATOR_MAX8649
  	tristate "Maxim 8649 voltage regulator"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  This driver controls a Maxim 8649 voltage output regulator via
  	  I2C bus.
  
  config REGULATOR_MAX8660
  	tristate "Maxim 8660/8661 voltage regulator"
  	depends on I2C
  	help
  	  This driver controls a Maxim 8660/8661 voltage output
  	  regulator via I2C bus.
  
  config REGULATOR_MAX8907
  	tristate "Maxim 8907 voltage regulator"
  	depends on MFD_MAX8907
  	help
  	  This driver controls a Maxim 8907 voltage output regulator
  	  via I2C bus. The provided regulator is suitable for Tegra
  	  chip to control Step-Down DC-DC and LDOs.
  
  config REGULATOR_MAX8925
  	tristate "Maxim MAX8925 Power Management IC"
  	depends on MFD_MAX8925
  	help
  	  Say y here to support the voltage regulaltor of Maxim MAX8925 PMIC.
  
  config REGULATOR_MAX8952
  	tristate "Maxim MAX8952 Power Management IC"
  	depends on I2C
  	help
  	  This driver controls a Maxim 8952 voltage output regulator
  	  via I2C bus. Maxim 8952 has one voltage output and supports 4 DVS
  	  modes ranging from 0.77V to 1.40V by 0.01V steps.
  
  config REGULATOR_MAX8973
  	tristate "Maxim MAX8973 voltage regulator "
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  The MAXIM MAX8973 high-efficiency. three phase, DC-DC step-down
  	  switching regulator delievers up to 9A of output current. Each
  	  phase operates at a 2MHz fixed frequency with a 120 deg shift
  	  from the adjacent phase, allowing the use of small magnetic component.
  
  config REGULATOR_MAX8997
  	tristate "Maxim 8997/8966 regulator"
  	depends on MFD_MAX8997
  	help
  	  This driver controls a Maxim 8997/8966 regulator
  	  via I2C bus. The provided regulator is suitable for S5PC110,
  	  S5PV210, and Exynos-4 chips to control VCC_CORE and
  	  VCC_USIM voltages.
  
  config REGULATOR_MAX8998
  	tristate "Maxim 8998 voltage regulator"
  	depends on MFD_MAX8998
  	help
  	  This driver controls a Maxim 8998 voltage output regulator
  	  via I2C bus. The provided regulator is suitable for S3C6410
  	  and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages.
  
  config REGULATOR_MAX77686
  	tristate "Maxim 77686 regulator"
  	depends on MFD_MAX77686
  	help
  	  This driver controls a Maxim 77686 regulator
  	  via I2C bus. The provided regulator is suitable for
  	  Exynos-4 chips to control VARM and VINT voltages.
  
  config REGULATOR_MAX77693
  	tristate "Maxim MAX77693 regulator"
  	depends on MFD_MAX77693
  	help
  	  This driver controls a Maxim 77693 regulator via I2C bus.
  	  The regulators include two LDOs, 'SAFEOUT1', 'SAFEOUT2'
  	  and one current regulator 'CHARGER'. This is suitable for
  	  Exynos-4x12 chips.
  
  config REGULATOR_MC13XXX_CORE
  	tristate
  
  config REGULATOR_MC13783
  	tristate "Freescale MC13783 regulator driver"
  	depends on MFD_MC13XXX
  	select REGULATOR_MC13XXX_CORE
  	help
  	  Say y here to support the regulators found on the Freescale MC13783
  	  PMIC.
  
  config REGULATOR_MC13892
  	tristate "Freescale MC13892 regulator driver"
  	depends on MFD_MC13XXX
  	select REGULATOR_MC13XXX_CORE
  	help
  	  Say y here to support the regulators found on the Freescale MC13892
  	  PMIC.
  
  config REGULATOR_PALMAS
  	tristate "TI Palmas PMIC Regulators"
  	depends on MFD_PALMAS
  	help
  	  If you wish to control the regulators on the Palmas series of
  	  chips say Y here. This will enable support for all the software
  	  controllable SMPS/LDO regulators.
  
  	  The regulators available on Palmas series chips vary depending
  	  on the muxing. This is handled automatically in the driver by
  	  reading the mux info from OTP.
  
  config REGULATOR_PCAP
  	tristate "Motorola PCAP2 regulator driver"
  	depends on EZX_PCAP
  	help
  	 This driver provides support for the voltage regulators of the
  	 PCAP2 PMIC.
  
  config REGULATOR_PCF50633
  	tristate "NXP PCF50633 regulator driver"
  	depends on MFD_PCF50633
  	help
  	 Say Y here to support the voltage regulators and convertors
  	 on PCF50633
  
  config REGULATOR_PFUZE100
  	tristate "Freescale PFUZE100/PFUZE200 regulator driver"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  Say y here to support the regulators found on the Freescale
  	  PFUZE100/PFUZE200 PMIC.
  
  config REGULATOR_RC5T583
  	tristate "RICOH RC5T583 Power regulators"
  	depends on MFD_RC5T583
  	help
  	  Select this option to enable the power regulator of RICOH
  	  PMIC RC5T583.
  	  This driver supports the control of different power rails of device
  	  through regulator interface. The device supports multiple DCDC/LDO
  	  outputs which can be controlled by i2c communication.
  
  config REGULATOR_S2MPS11
  	tristate "Samsung S2MPS11 voltage regulator"
  	depends on MFD_SEC_CORE
  	help
  	 This driver supports a Samsung S2MPS11 voltage output regulator
  	 via I2C bus. S2MPS11 is comprised of high efficient Buck converters
  	 including Dual-Phase Buck converter, Buck-Boost converter, various LDOs.
  
  config REGULATOR_S5M8767
  	tristate "Samsung S5M8767A voltage regulator"
  	depends on MFD_SEC_CORE
  	help
  	 This driver supports a Samsung S5M8767A voltage output regulator
  	 via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and
  	 supports DVS mode with 8bits of output voltage control.
  
  config REGULATOR_TI_ABB
  	tristate "TI Adaptive Body Bias on-chip LDO"
  	depends on ARCH_OMAP
  	help
  	  Select this option to support Texas Instruments' on-chip Adaptive Body
  	  Bias (ABB) LDO regulators. It is recommended that this option be
  	  enabled on required TI SoC. Certain Operating Performance Points
  	  on TI SoCs may be unstable without enabling this as it provides
  	  device specific optimized bias to allow/optimize functionality.
  
  config REGULATOR_STW481X_VMMC
  	bool "ST Microelectronics STW481X VMMC regulator"
  	depends on MFD_STW481X
  	default y if MFD_STW481X
  	help
  	  This driver supports the internal VMMC regulator in the STw481x
  	  PMIC chips.
  
  config REGULATOR_TPS51632
  	tristate "TI TPS51632 Power Regulator"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  This driver supports TPS51632 voltage regulator chip.
  	  The TPS51632 is 3-2-1 Phase D-Cap+ Step Down Driverless Controller
  	  with Serial VID control and DVFS.
  	  The voltage output can be configure through I2C interface or PWM
  	  interface.
  
  config REGULATOR_TPS6105X
  	tristate "TI TPS6105X Power regulators"
  	depends on TPS6105X
  	default y if TPS6105X
  	help
  	  This driver supports TPS61050/TPS61052 voltage regulator chips.
  	  It is a single boost converter primarily for white LEDs and
  	  audio amplifiers.
  
  config REGULATOR_TPS62360
  	tristate "TI TPS6236x Power Regulator"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  This driver supports TPS6236x voltage regulator chip. This
  	  regulator is meant for processor core supply. This chip is
  	  high-frequency synchronous step down dc-dc converter optimized
  	  for battery-powered portable applications.
  
  config REGULATOR_TPS65023
  	tristate "TI TPS65023 Power regulators"
  	depends on I2C
  	select REGMAP_I2C
  	help
  	  This driver supports TPS65023 voltage regulator chips. TPS65023 provides
  	  three step-down converters and two general-purpose LDO voltage regulators.
  	  It supports TI's software based Class-2 SmartReflex implementation.
  
  config REGULATOR_TPS6507X
  	tristate "TI TPS6507X Power regulators"
  	depends on I2C
  	help
  	  This driver supports TPS6507X voltage regulator chips. TPS6507X provides
  	  three step-down converters and two general-purpose LDO voltage regulators.
  	  It supports TI's software based Class-2 SmartReflex implementation.
  
  config REGULATOR_TPS65090
  	tristate "TI TPS65090 Power regulator"
  	depends on MFD_TPS65090
  	help
  	  This driver provides support for the voltage regulators on the
  	  TI TPS65090 PMIC.
  
  config REGULATOR_TPS65217
  	tristate "TI TPS65217 Power regulators"
  	depends on MFD_TPS65217
  	help
  	  This driver supports TPS65217 voltage regulator chips. TPS65217
  	  provides three step-down converters and four general-purpose LDO
  	  voltage regulators. It supports software based voltage control
  	  for different voltage domains
  
  config REGULATOR_TPS6524X
  	tristate "TI TPS6524X Power regulators"
  	depends on SPI
  	help
  	  This driver supports TPS6524X voltage regulator chips. TPS6524X
  	  provides three step-down converters and two general-purpose LDO
  	  voltage regulators.  This device is interfaced using a customized
  	  serial interface currently supported on the sequencer serial
  	  port controller.
  
  config REGULATOR_TPS6586X
  	tristate "TI TPS6586X Power regulators"
  	depends on MFD_TPS6586X
  	help
  	  This driver supports TPS6586X voltage regulator chips.
  
  config REGULATOR_TPS65910
  	tristate "TI TPS65910/TPS65911 Power Regulators"
  	depends on MFD_TPS65910
  	help
  	  This driver supports TPS65910/TPS65911 voltage regulator chips.
  
  config REGULATOR_TPS65912
  	tristate "TI TPS65912 Power regulator"
  	depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
  	help
  	    This driver supports TPS65912 voltage regulator chip.
  
  config REGULATOR_TPS80031
  	tristate "TI TPS80031/TPS80032 power regualtor driver"
  	depends on MFD_TPS80031
  	help
  	  TPS80031/ TPS80032 Fully Integrated Power Management with Power
  	  Path and Battery Charger. It has 5 configurable step-down
  	  converters, 11 general purpose LDOs, VBUS generator and digital
  	  output to control regulators.
  
  config REGULATOR_TWL4030
  	tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
  	depends on TWL4030_CORE
  	help
  	  This driver supports the voltage regulators provided by
  	  this family of companion chips.
  
  config REGULATOR_VEXPRESS
  	tristate "Versatile Express regulators"
  	depends on VEXPRESS_CONFIG
  	help
  	  This driver provides support for voltage regulators available
  	  on the ARM Ltd's Versatile Express platform.
  
  config REGULATOR_WM831X
  	tristate "Wolfson Microelectronics WM831x PMIC regulators"
  	depends on MFD_WM831X
  	help
  	  Support the voltage and current regulators of the WM831x series
  	  of PMIC devices.
  
  config REGULATOR_WM8350
  	tristate "Wolfson Microelectronics WM8350 AudioPlus PMIC"
  	depends on MFD_WM8350
  	help
  	  This driver provides support for the voltage and current regulators
  	  of the WM8350 AudioPlus PMIC.
  
  config REGULATOR_WM8400
  	tristate "Wolfson Microelectronics WM8400 AudioPlus PMIC"
  	depends on MFD_WM8400
  	help
  	  This driver provides support for the voltage regulators of the
  	  WM8400 AudioPlus PMIC.
  
  config REGULATOR_WM8994
  	tristate "Wolfson Microelectronics WM8994 CODEC"
  	depends on MFD_WM8994
  	help
  	  This driver provides support for the voltage regulators on the
  	  WM8994 CODEC.
  
  endif