Merge tag 'drm-intel-fixes-2013-11-20' of git://people.freedesktop.org/~danvet/drm...
[deliverable/linux.git] / drivers / regulator / Kconfig
CommitLineData
bbda14df 1menuconfig REGULATOR
ba7e4763 2 bool "Voltage and Current Regulator Support"
ba7e4763
LG
3 help
4 Generic Voltage and Current Regulator support.
5
6 This framework is designed to provide a generic interface to voltage
7 and current regulators within the Linux kernel. It's intended to
8 provide voltage and current control to client or consumer drivers and
9 also provide status information to user space applications through a
10 sysfs interface.
11
12 The intention is to allow systems to dynamically control regulator
13 output in order to save power and prolong battery life. This applies
14 to both voltage regulators (where voltage output is controllable) and
15 current sinks (where current output is controllable).
16
17 This framework safely compiles out if not selected so that client
18 drivers can still be used in systems with no software controllable
19 regulators.
20
21 If unsure, say no.
22
809d310c 23
bbda14df
TI
24if REGULATOR
25
ba7e4763
LG
26config REGULATOR_DEBUG
27 bool "Regulator debug support"
ba7e4763
LG
28 help
29 Say yes here to enable debugging support.
30
31config REGULATOR_FIXED_VOLTAGE
a9cb63b2 32 tristate "Fixed voltage regulator support"
a9cb63b2
MB
33 help
34 This driver provides support for fixed voltage regulators,
35 useful for systems which use a combination of software
36 managed regulators and simple non-configurable regulators.
ba7e4763
LG
37
38config REGULATOR_VIRTUAL_CONSUMER
39 tristate "Virtual regulator consumer support"
ba7e4763
LG
40 help
41 This driver provides a virtual consumer for the voltage and
c6d678b6
MJ
42 current regulator API which provides sysfs controls for
43 configuring the supplies requested. This is mainly useful
44 for test purposes.
ba7e4763 45
c6d678b6 46 If unsure, say no.
ba7e4763 47
1d98cccf
MR
48config REGULATOR_USERSPACE_CONSUMER
49 tristate "Userspace regulator consumer support"
1d98cccf
MR
50 help
51 There are some classes of devices that are controlled entirely
6f2653e6 52 from user space. Userspace consumer driver provides ability to
1d98cccf
MR
53 control power supplies for such devices.
54
c6d678b6 55 If unsure, say no.
1d98cccf 56
95f1dc08
CX
57config REGULATOR_88PM800
58 tristate "Marvell 88PM800 Power regulators"
7c45f60b 59 depends on MFD_88PM800
95f1dc08
CX
60 help
61 This driver supports Marvell 88PM800 voltage regulator chips.
62 It delivers digitally programmable output,
63 the voltage is programmed via I2C interface.
64 It's suitable to support PXA988 chips to control VCC_MAIN and
65 various voltages.
66
82b736df 67config REGULATOR_88PM8607
631a1fc4 68 tristate "Marvell 88PM8607 Power regulators"
82b736df 69 depends on MFD_88PM860X=y
3f0292ae 70 help
82b736df 71 This driver supports 88PM8607 voltage regulator chips.
3f0292ae 72
dfb9b8a4
AL
73config REGULATOR_AD5398
74 tristate "Analog Devices AD5398/AD5821 regulators"
75 depends on I2C
0eb5d5ab 76 help
dfb9b8a4
AL
77 This driver supports AD5398 and AD5821 current regulator chips.
78 If building into module, its name is ad5398.ko.
79
82b736df
MB
80config REGULATOR_ANATOP
81 tristate "Freescale i.MX on-chip ANATOP LDO regulators"
82 depends on MFD_SYSCON
83 help
84 Say y here to support Freescale i.MX on-chip ANATOP LDOs
85 regulators. It is recommended that this option be
86 enabled on i.MX6 platform.
87
dfb9b8a4
AL
88config REGULATOR_AAT2870
89 tristate "AnalogicTech AAT2870 Regulators"
90 depends on MFD_AAT2870_CORE
91 help
92 If you have a AnalogicTech AAT2870 say Y to enable the
93 regulator driver.
94
82b736df
MB
95config REGULATOR_AB3100
96 tristate "ST-Ericsson AB3100 Regulator functions"
97 depends on AB3100_CORE
98 default y if AB3100_CORE
99 help
100 These regulators correspond to functionality in the
101 AB3100 analog baseband dealing with power regulators
102 for the system.
103
104config REGULATOR_AB8500
105 bool "ST-Ericsson AB8500 Power Regulators"
106 depends on AB8500_CORE
107 help
108 This driver supports the regulators found on the ST-Ericsson mixed
109 signal AB8500 PMIC
110
b667a45d
MB
111config REGULATOR_ARIZONA
112 tristate "Wolfson Arizona class devices"
113 depends on MFD_ARIZONA
e6ed9058 114 depends on SND_SOC
b667a45d
MB
115 help
116 Support for the regulators found on Wolfson Arizona class
117 devices.
118
82b736df
MB
119config REGULATOR_AS3711
120 tristate "AS3711 PMIC"
121 depends on MFD_AS3711
122 help
123 This driver provides support for the voltage regulators on the
124 AS3711 PMIC
125
bc407334
LD
126config REGULATOR_AS3722
127 tristate "AMS AS3722 PMIC Regulators"
128 depends on MFD_AS3722
129 help
130 This driver provides support for the voltage regulators on the
131 AS3722 PMIC. This will enable support for all the software
132 controllable DCDC/LDO regulators.
133
dfb9b8a4
AL
134config REGULATOR_DA903X
135 tristate "Dialog Semiconductor DA9030/DA9034 regulators"
136 depends on PMIC_DA903X
137 help
138 Say y here to support the BUCKs and LDOs regulators found on
139 Dialog Semiconductor DA9030/DA9034 PMIC.
140
141config REGULATOR_DA9052
142 tristate "Dialog Semiconductor DA9052/DA9053 regulators"
143 depends on PMIC_DA9052
144 help
145 This driver supports the voltage regulators of DA9052-BC and
146 DA9053-AA/Bx PMIC.
147
f6130be6
AJ
148config REGULATOR_DA9055
149 tristate "Dialog Semiconductor DA9055 regulators"
150 depends on MFD_DA9055
151 help
152 Say y here to support the BUCKs and LDOs regulators found on
153 Dialog Semiconductor DA9055 PMIC.
154
155 This driver can also be built as a module. If so, the module
156 will be called da9055-regulator.
157
69ca3e58
KG
158config REGULATOR_DA9063
159 tristate "Dialog Semiconductor DA9063 regulators"
160 depends on MFD_DA9063
161 help
162 Say y here to support the BUCKs and LDOs regulators found on
163 DA9063 PMICs.
164
165 This driver can also be built as a module. If so, the module
166 will be called da9063-regulator.
167
16f10918
ST
168config REGULATOR_DA9210
169 tristate "Dialog Semiconductor DA9210 regulator"
170 depends on I2C
171 select REGMAP_I2C
172 help
173 Say y here to support for the Dialog Semiconductor DA9210.
174 The DA9210 is a multi-phase synchronous step down
175 converter 12A DC-DC Buck controlled through an I2C
176 interface.
177
82b736df
MB
178config REGULATOR_DBX500_PRCMU
179 bool
180
181config REGULATOR_DB8500_PRCMU
182 bool "ST-Ericsson DB8500 Voltage Domain Regulators"
183 depends on MFD_DB8500_PRCMU
184 select REGULATOR_DBX500_PRCMU
185 help
186 This driver supports the voltage domain regulators controlled by the
187 DB8500 PRCMU
188
49d8c599
YZ
189config REGULATOR_FAN53555
190 tristate "Fairchild FAN53555 Regulator"
191 depends on I2C
192 select REGMAP_I2C
193 help
194 This driver supports Fairchild FAN53555 Digitally Programmable
195 TinyBuck Regulator. The FAN53555 is a step-down switching voltage
196 regulator that delivers a digitally programmable output from an
197 input voltage supply of 2.5V to 5.5V. The output voltage is
198 programmed through an I2C interface.
199
82b736df
MB
200config REGULATOR_GPIO
201 tristate "GPIO regulator support"
202 depends on GPIOLIB
e3e5aff7 203 help
82b736df
MB
204 This driver provides support for regulators that can be
205 controlled via gpios.
206 It is capable of supporting current and voltage regulators
207 and the platform has to provide a mapping of GPIO-states
208 to target volts/amps.
e3e5aff7 209
82b736df
MB
210config REGULATOR_ISL6271A
211 tristate "Intersil ISL6271A Power regulator"
212 depends on I2C
213 help
214 This driver supports ISL6271A voltage regulator chip.
dfb9b8a4 215
82b736df
MB
216config REGULATOR_LP3971
217 tristate "National Semiconductors LP3971 PMIC regulator driver"
218 depends on I2C
dfb9b8a4 219 help
82b736df
MB
220 Say Y here to support the voltage regulators and convertors
221 on National Semiconductors LP3971 PMIC
dfb9b8a4 222
82b736df
MB
223config REGULATOR_LP3972
224 tristate "National Semiconductors LP3972 PMIC regulator driver"
225 depends on I2C
dfb9b8a4 226 help
82b736df
MB
227 Say Y here to support the voltage regulators and convertors
228 on National Semiconductors LP3972 PMIC
dfb9b8a4 229
82b736df 230config REGULATOR_LP872X
631a1fc4 231 tristate "TI/National Semiconductor LP8720/LP8725 voltage regulators"
613965fb 232 depends on I2C
82b736df
MB
233 select REGMAP_I2C
234 help
235 This driver supports LP8720/LP8725 PMIC
236
237config REGULATOR_LP8755
238 tristate "TI LP8755 High Performance PMU driver"
dfb9b8a4 239 depends on I2C
82b736df 240 select REGMAP_I2C
dfb9b8a4 241 help
82b736df
MB
242 This driver supports LP8755 High Performance PMU driver. This
243 chip contains six step-down DC/DC converters which can support
244 9 mode multiphase configuration.
dfb9b8a4 245
82b736df 246config REGULATOR_LP8788
631a1fc4 247 tristate "TI LP8788 Power Regulators"
82b736df 248 depends on MFD_LP8788
dfb9b8a4 249 help
82b736df 250 This driver supports LP8788 voltage regulator chip.
0eb5d5ab 251
55f4fa4e
RJ
252config REGULATOR_MAX1586
253 tristate "Maxim 1586/1587 voltage regulator"
254 depends on I2C
55f4fa4e
RJ
255 help
256 This driver controls a Maxim 1586 or 1587 voltage output
257 regulator via I2C bus. The provided regulator is suitable
258 for PXA27x chips to control VCC_CORE and VCC_USIM voltages.
259
a71b797f
HZ
260config REGULATOR_MAX8649
261 tristate "Maxim 8649 voltage regulator"
262 depends on I2C
c5b68d47 263 select REGMAP_I2C
a71b797f
HZ
264 help
265 This driver controls a Maxim 8649 voltage output regulator via
266 I2C bus.
267
27f37e4b
WS
268config REGULATOR_MAX8660
269 tristate "Maxim 8660/8661 voltage regulator"
270 depends on I2C
271 help
272 This driver controls a Maxim 8660/8661 voltage output
273 regulator via I2C bus.
274
ffee1909
GY
275config REGULATOR_MAX8907
276 tristate "Maxim 8907 voltage regulator"
277 depends on MFD_MAX8907
278 help
279 This driver controls a Maxim 8907 voltage output regulator
280 via I2C bus. The provided regulator is suitable for Tegra
281 chip to control Step-Down DC-DC and LDOs.
282
08ff6f2a
HZ
283config REGULATOR_MAX8925
284 tristate "Maxim MAX8925 Power Management IC"
285 depends on MFD_MAX8925
286 help
287 Say y here to support the voltage regulaltor of Maxim MAX8925 PMIC.
288
202f4f53
MH
289config REGULATOR_MAX8952
290 tristate "Maxim MAX8952 Power Management IC"
291 depends on I2C
292 help
293 This driver controls a Maxim 8952 voltage output regulator
294 via I2C bus. Maxim 8952 has one voltage output and supports 4 DVS
295 modes ranging from 0.77V to 1.40V by 0.01V steps.
296
5928f538
LD
297config REGULATOR_MAX8973
298 tristate "Maxim MAX8973 voltage regulator "
299 depends on I2C
300 select REGMAP_I2C
301 help
302 The MAXIM MAX8973 high-efficiency. three phase, DC-DC step-down
303 switching regulator delievers up to 9A of output current. Each
304 phase operates at a 2MHz fixed frequency with a 120 deg shift
305 from the adjacent phase, allowing the use of small magnetic component.
306
bd6ca2cf
MH
307config REGULATOR_MAX8997
308 tristate "Maxim 8997/8966 regulator"
309 depends on MFD_MAX8997
310 help
311 This driver controls a Maxim 8997/8966 regulator
312 via I2C bus. The provided regulator is suitable for S5PC110,
313 S5PV210, and Exynos-4 chips to control VCC_CORE and
314 VCC_USIM voltages.
315
156f2528
KP
316config REGULATOR_MAX8998
317 tristate "Maxim 8998 voltage regulator"
69f71008 318 depends on MFD_MAX8998
156f2528
KP
319 help
320 This driver controls a Maxim 8998 voltage output regulator
321 via I2C bus. The provided regulator is suitable for S3C6410
322 and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages.
323
133d4016
JL
324config REGULATOR_MAX77686
325 tristate "Maxim 77686 regulator"
326 depends on MFD_MAX77686
327 help
328 This driver controls a Maxim 77686 regulator
329 via I2C bus. The provided regulator is suitable for
330 Exynos-4 chips to control VARM and VINT voltages.
331
80b022e2
JL
332config REGULATOR_MAX77693
333 tristate "Maxim MAX77693 regulator"
334 depends on MFD_MAX77693
335 help
336 This driver controls a Maxim 77693 regulator via I2C bus.
337 The regulators include two LDOs, 'SAFEOUT1', 'SAFEOUT2'
338 and one current regulator 'CHARGER'. This is suitable for
339 Exynos-4x12 chips.
340
82b736df
MB
341config REGULATOR_MC13XXX_CORE
342 tristate
5ec271e7 343
82b736df
MB
344config REGULATOR_MC13783
345 tristate "Freescale MC13783 regulator driver"
346 depends on MFD_MC13783
347 select REGULATOR_MC13XXX_CORE
0cbdf7bc 348 help
82b736df
MB
349 Say y here to support the regulators found on the Freescale MC13783
350 PMIC.
0cbdf7bc 351
82b736df
MB
352config REGULATOR_MC13892
353 tristate "Freescale MC13892 regulator driver"
354 depends on MFD_MC13XXX
355 select REGULATOR_MC13XXX_CORE
5976f095 356 help
82b736df
MB
357 Say y here to support the regulators found on the Freescale MC13892
358 PMIC.
5976f095 359
82b736df
MB
360config REGULATOR_PALMAS
361 tristate "TI Palmas PMIC Regulators"
362 depends on MFD_PALMAS
af8b5fc3 363 help
82b736df
MB
364 If you wish to control the regulators on the Palmas series of
365 chips say Y here. This will enable support for all the software
366 controllable SMPS/LDO regulators.
af8b5fc3 367
82b736df
MB
368 The regulators available on Palmas series chips vary depending
369 on the muxing. This is handled automatically in the driver by
370 reading the mux info from OTP.
b59320cc 371
82b736df
MB
372config REGULATOR_PCAP
373 tristate "Motorola PCAP2 regulator driver"
374 depends on EZX_PCAP
ade7515f 375 help
82b736df
MB
376 This driver provides support for the voltage regulators of the
377 PCAP2 PMIC.
ade7515f 378
dfb9b8a4
AL
379config REGULATOR_PCF50633
380 tristate "NXP PCF50633 regulator driver"
c6d678b6 381 depends on MFD_PCF50633
295c08bc 382 help
dfb9b8a4
AL
383 Say Y here to support the voltage regulators and convertors
384 on PCF50633
295c08bc 385
3784b6d6
RG
386config REGULATOR_PFUZE100
387 tristate "Support regulators on Freescale PFUZE100 PMIC"
388 depends on I2C
94421b05 389 select REGMAP_I2C
3784b6d6
RG
390 help
391 Say y here to support the regulators found on the Freescale PFUZE100
392 PMIC.
393
6ffc3270
LD
394config REGULATOR_RC5T583
395 tristate "RICOH RC5T583 Power regulators"
396 depends on MFD_RC5T583
397 help
398 Select this option to enable the power regulator of RICOH
399 PMIC RC5T583.
400 This driver supports the control of different power rails of device
401 through regulator interface. The device supports multiple DCDC/LDO
402 outputs which can be controlled by i2c communication.
403
cb74685e
SK
404config REGULATOR_S2MPS11
405 tristate "Samsung S2MPS11 voltage regulator"
406 depends on MFD_SEC_CORE
407 help
408 This driver supports a Samsung S2MPS11 voltage output regulator
409 via I2C bus. S2MPS11 is comprised of high efficient Buck converters
410 including Dual-Phase Buck converter, Buck-Boost converter, various LDOs.
411
dfb9b8a4
AL
412config REGULATOR_S5M8767
413 tristate "Samsung S5M8767A voltage regulator"
66c9fbb9 414 depends on MFD_SEC_CORE
5e428d5c 415 help
dfb9b8a4
AL
416 This driver supports a Samsung S5M8767A voltage output regulator
417 via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and
418 supports DVS mode with 8bits of output voltage control.
5e428d5c 419
82b736df 420config REGULATOR_TI_ABB
631a1fc4 421 tristate "TI Adaptive Body Bias on-chip LDO"
82b736df 422 depends on ARCH_OMAP
4c5dabce 423 help
82b736df
MB
424 Select this option to support Texas Instruments' on-chip Adaptive Body
425 Bias (ABB) LDO regulators. It is recommended that this option be
426 enabled on required TI SoC. Certain Operating Performance Points
427 on TI SoCs may be unstable without enabling this as it provides
428 device specific optimized bias to allow/optimize functionality.
4c5dabce 429
3615a34e
LW
430config REGULATOR_STW481X_VMMC
431 bool "ST Microelectronics STW481X VMMC regulator"
432 depends on MFD_STW481X
433 default y if MFD_STW481X
434 help
435 This driver supports the internal VMMC regulator in the STw481x
436 PMIC chips.
437
0c570674
LD
438config REGULATOR_TPS51632
439 tristate "TI TPS51632 Power Regulator"
440 depends on I2C
441 select REGMAP_I2C
442 help
443 This driver supports TPS51632 voltage regulator chip.
7bde7672 444 The TPS51632 is 3-2-1 Phase D-Cap+ Step Down Driverless Controller
0c570674
LD
445 with Serial VID control and DVFS.
446 The voltage output can be configure through I2C interface or PWM
447 interface.
448
2edd3b69
LW
449config REGULATOR_TPS6105X
450 tristate "TI TPS6105X Power regulators"
451 depends on TPS6105X
452 default y if TPS6105X
453 help
454 This driver supports TPS61050/TPS61052 voltage regulator chips.
455 It is a single boost converter primarily for white LEDs and
456 audio amplifiers.
457
dfb9b8a4 458config REGULATOR_TPS62360
d1cf4f65 459 tristate "TI TPS6236x Power Regulator"
dfb9b8a4
AL
460 depends on I2C
461 select REGMAP_I2C
462 help
d1cf4f65 463 This driver supports TPS6236x voltage regulator chip. This
dfb9b8a4
AL
464 regulator is meant for processor core supply. This chip is
465 high-frequency synchronous step down dc-dc converter optimized
466 for battery-powered portable applications.
467
2de79850
AA
468config REGULATOR_TPS65023
469 tristate "TI TPS65023 Power regulators"
470 depends on I2C
90923351 471 select REGMAP_I2C
2de79850
AA
472 help
473 This driver supports TPS65023 voltage regulator chips. TPS65023 provides
474 three step-down converters and two general-purpose LDO voltage regulators.
475 It supports TI's software based Class-2 SmartReflex implementation.
476
477config REGULATOR_TPS6507X
478 tristate "TI TPS6507X Power regulators"
479 depends on I2C
480 help
481 This driver supports TPS6507X voltage regulator chips. TPS6507X provides
482 three step-down converters and two general-purpose LDO voltage regulators.
483 It supports TI's software based Class-2 SmartReflex implementation.
484
452534e5
VB
485config REGULATOR_TPS65090
486 tristate "TI TPS65090 Power regulator"
487 depends on MFD_TPS65090
488 help
489 This driver provides support for the voltage regulators on the
490 TI TPS65090 PMIC.
491
a493077f
AC
492config REGULATOR_TPS65217
493 tristate "TI TPS65217 Power regulators"
494 depends on MFD_TPS65217
9260ad98 495 help
a493077f
AC
496 This driver supports TPS65217 voltage regulator chips. TPS65217
497 provides three step-down converters and four general-purpose LDO
498 voltage regulators. It supports software based voltage control
499 for different voltage domains
9260ad98 500
1394fd28
CC
501config REGULATOR_TPS6524X
502 tristate "TI TPS6524X Power regulators"
503 depends on SPI
be0e2d3e 504 help
1394fd28
CC
505 This driver supports TPS6524X voltage regulator chips. TPS6524X
506 provides three step-down converters and two general-purpose LDO
507 voltage regulators. This device is interfaced using a customized
508 serial interface currently supported on the sequencer serial
509 port controller.
be0e2d3e 510
dfb9b8a4
AL
511config REGULATOR_TPS6586X
512 tristate "TI TPS6586X Power regulators"
513 depends on MFD_TPS6586X
51bd6943 514 help
dfb9b8a4 515 This driver supports TPS6586X voltage regulator chips.
51bd6943 516
518fb721 517config REGULATOR_TPS65910
ae0e6544 518 tristate "TI TPS65910/TPS65911 Power Regulators"
518fb721 519 depends on MFD_TPS65910
8b385d9b 520 help
ae0e6544 521 This driver supports TPS65910/TPS65911 voltage regulator chips.
c789ca20 522
dfb9b8a4
AL
523config REGULATOR_TPS65912
524 tristate "TI TPS65912 Power regulator"
525 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
c789ca20 526 help
dfb9b8a4 527 This driver supports TPS65912 voltage regulator chip.
c789ca20 528
1a0bb679
LD
529config REGULATOR_TPS80031
530 tristate "TI TPS80031/TPS80032 power regualtor driver"
531 depends on MFD_TPS80031
532 help
533 TPS80031/ TPS80032 Fully Integrated Power Management with Power
534 Path and Battery Charger. It has 5 configurable step-down
535 converters, 11 general purpose LDOs, VBUS generator and digital
536 output to control regulators.
537
dfb9b8a4 538config REGULATOR_TWL4030
631a1fc4 539 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
dfb9b8a4 540 depends on TWL4030_CORE
1032fbfd 541 help
dfb9b8a4
AL
542 This driver supports the voltage regulators provided by
543 this family of companion chips.
1032fbfd 544
31e54086
PM
545config REGULATOR_VEXPRESS
546 tristate "Versatile Express regulators"
547 depends on VEXPRESS_CONFIG
548 help
549 This driver provides support for voltage regulators available
550 on the ARM Ltd's Versatile Express platform.
551
dfb9b8a4
AL
552config REGULATOR_WM831X
553 tristate "Wolfson Microelectronics WM831x PMIC regulators"
554 depends on MFD_WM831X
49610235 555 help
dfb9b8a4
AL
556 Support the voltage and current regulators of the WM831x series
557 of PMIC devices.
49610235 558
dfb9b8a4
AL
559config REGULATOR_WM8350
560 tristate "Wolfson Microelectronics WM8350 AudioPlus PMIC"
561 depends on MFD_WM8350
1394fd28 562 help
dfb9b8a4 563 This driver provides support for the voltage and current regulators
c6d678b6 564 of the WM8350 AudioPlus PMIC.
1394fd28 565
dfb9b8a4
AL
566config REGULATOR_WM8400
567 tristate "Wolfson Microelectronics WM8400 AudioPlus PMIC"
568 depends on MFD_WM8400
518fb721 569 help
dfb9b8a4
AL
570 This driver provides support for the voltage regulators of the
571 WM8400 AudioPlus PMIC.
518fb721 572
dfb9b8a4
AL
573config REGULATOR_WM8994
574 tristate "Wolfson Microelectronics WM8994 CODEC"
575 depends on MFD_WM8994
f7eb6c5e 576 help
dfb9b8a4
AL
577 This driver provides support for the voltage regulators on the
578 WM8994 CODEC.
f7eb6c5e 579
bbda14df 580endif
295c08bc 581
This page took 0.452983 seconds and 5 git commands to generate.