Merge remote-tracking branch 'iommu/next'
[deliverable/linux.git] / drivers / rtc / Kconfig
CommitLineData
7be2c7c9 1#
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2# RTC class/drivers configuration
3#
4
5config RTC_LIB
b4d246b1 6 bool
0c86edc0 7
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8config RTC_MC146818_LIB
9 bool
10 select RTC_LIB
11
bb35fb20 12menuconfig RTC_CLASS
b4d246b1 13 bool "Real Time Clock"
0c86edc0 14 default n
3369465e 15 depends on !S390 && !UML
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16 select RTC_LIB
17 help
18 Generic RTC class support. If you say yes here, you will
98ab2c93 19 be allowed to plug one or more RTCs to your system. You will
27ae4104 20 probably want to enable one or more of the interfaces below.
0c86edc0 21
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22if RTC_CLASS
23
0c86edc0 24config RTC_HCTOSYS
7ca1d488 25 bool "Set system time from RTC on startup and resume"
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26 default y
27 help
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28 If you say yes here, the system time (wall clock) will be set using
29 the value read from a specified RTC device. This is useful to avoid
30 unnecessary fsck runs at boot time, and to network better.
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31
32config RTC_HCTOSYS_DEVICE
7ca1d488 33 string "RTC used to set the system time"
9c5150b3 34 depends on RTC_HCTOSYS
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35 default "rtc0"
36 help
7ca1d488 37 The RTC device that will be used to (re)initialize the system
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38 clock, usually rtc0. Initialization is done when the system
39 starts up, and when it resumes from a low power state. This
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40 device should record time in UTC, since the kernel won't do
41 timezone correction.
7ca1d488 42
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43 The driver for this RTC device must be loaded before late_initcall
44 functions run, so it must usually be statically linked.
45
7ca1d488 46 This clock should be battery-backed, so that it reads the correct
ae64d169 47 time when the system boots from a power-off state. Otherwise, your
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48 system will need an external clock source (like an NTP server).
49
50 If the clock you specify here is not battery backed, it may still
51 be useful to reinitialize system time when resuming from system
09b6bdb3 52 sleep states. Do not specify an RTC here unless it stays powered
7ca1d488 53 during all this system's supported sleep states.
0c86edc0 54
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55config RTC_SYSTOHC
56 bool "Set the RTC time based on NTP synchronization"
57 default y
58 help
59 If you say yes here, the system time (wall clock) will be stored
60 in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
61 minutes if userspace reports synchronized NTP status.
62
63config RTC_SYSTOHC_DEVICE
64 string "RTC used to synchronize NTP adjustment"
65 depends on RTC_SYSTOHC
66 default RTC_HCTOSYS_DEVICE if RTC_HCTOSYS
67 default "rtc0"
68 help
69 The RTC device used for NTP synchronization. The main difference
70 between RTC_HCTOSYS_DEVICE and RTC_SYSTOHC_DEVICE is that this
71 one can sleep when setting time, because it runs in the workqueue
72 context.
73
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74config RTC_DEBUG
75 bool "RTC debug support"
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76 help
77 Say yes here to enable debugging support in the RTC framework
78 and individual RTC drivers.
79
0c86edc0 80comment "RTC interfaces"
0c86edc0 81
c5c3e192 82config RTC_INTF_SYSFS
6341e62b 83 bool "/sys/class/rtc/rtcN (sysfs)"
bb35fb20 84 depends on SYSFS
8dc08395 85 default RTC_CLASS
c5c3e192 86 help
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87 Say yes here if you want to use your RTCs using sysfs interfaces,
88 /sys/class/rtc/rtc0 through /sys/.../rtcN.
c5c3e192 89
ae64d169 90 If unsure, say Y.
c5c3e192 91
728a2947 92config RTC_INTF_PROC
6341e62b 93 bool "/proc/driver/rtc (procfs for rtcN)"
bb35fb20 94 depends on PROC_FS
8dc08395 95 default RTC_CLASS
728a2947 96 help
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97 Say yes here if you want to use your system clock RTC through
98 the proc interface, /proc/driver/rtc.
99 Other RTCs will not be available through that API.
100 If there is no RTC for the system clock, then the first RTC(rtc0)
101 is used by default.
728a2947 102
ae64d169 103 If unsure, say Y.
728a2947 104
e824290e 105config RTC_INTF_DEV
6341e62b 106 bool "/dev/rtcN (character devices)"
8dc08395 107 default RTC_CLASS
e824290e 108 help
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109 Say yes here if you want to use your RTCs using the /dev
110 interfaces, which "udev" sets up as /dev/rtc0 through
ae64d169 111 /dev/rtcN.
e824290e 112
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113 You may want to set up a symbolic link so one of these
114 can be accessed as /dev/rtc, which is a name
115 expected by "hwclock" and some other programs. Recent
116 versions of "udev" are known to set up the symlink for you.
117
118 If unsure, say Y.
e824290e 119
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120config RTC_INTF_DEV_UIE_EMUL
121 bool "RTC UIE emulation on dev interface"
122 depends on RTC_INTF_DEV
123 help
124 Provides an emulation for RTC_UIE if the underlying rtc chip
125 driver does not expose RTC_UIE ioctls. Those requests generate
126 once-per-second update interrupts, used for synchronization.
127
128 The emulation code will read the time from the hardware
129 clock several times per second, please enable this option
130 only if you know that you really need it.
131
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132config RTC_DRV_TEST
133 tristate "Test driver/device"
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134 help
135 If you say yes here you get support for the
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136 RTC test driver. It's a software RTC which can be
137 used to test the RTC subsystem APIs. It gets
138 the time from the system clock.
139 You want this driver only if you are doing development
140 on the RTC subsystem. Please read the source code
141 for further details.
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142
143 This driver can also be built as a module. If so, the module
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144 will be called rtc-test.
145
146comment "I2C RTC drivers"
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147
148if I2C
1fec7c66 149
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150config RTC_DRV_88PM860X
151 tristate "Marvell 88PM860x"
3783055e 152 depends on MFD_88PM860X
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153 help
154 If you say yes here you get support for RTC function in Marvell
155 88PM860x chips.
156
157 This driver can also be built as a module. If so, the module
158 will be called rtc-88pm860x.
159
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160config RTC_DRV_88PM80X
161 tristate "Marvell 88PM80x"
3783055e 162 depends on MFD_88PM800
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163 help
164 If you say yes here you get support for RTC function in Marvell
165 88PM80x chips.
166
167 This driver can also be built as a module. If so, the module
168 will be called rtc-88pm80x.
169
0b2f6228 170config RTC_DRV_ABB5ZES3
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171 select REGMAP_I2C
172 tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
173 help
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174 If you say yes here you get support for the Abracon
175 AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.
176
177 This driver can also be built as a module. If so, the module
178 will be called rtc-ab-b5ze-s3.
179
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180config RTC_DRV_ABX80X
181 tristate "Abracon ABx80x"
182 help
183 If you say yes here you get support for Abracon AB080X and AB180X
184 families of ultra-low-power battery- and capacitor-backed real-time
185 clock chips.
186
187 This driver can also be built as a module. If so, the module
188 will be called rtc-abx80x.
189
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190config RTC_DRV_AC100
191 tristate "X-Powers AC100"
192 depends on MFD_AC100
193 help
194 If you say yes here you get support for the real-time clock found
195 in X-Powers AC100 family peripheral ICs.
196
197 This driver can also be built as a module. If so, the module
198 will be called rtc-ac100.
199
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200config RTC_DRV_AS3722
201 tristate "ams AS3722 RTC driver"
202 depends on MFD_AS3722
203 help
204 If you say yes here you get support for the RTC of ams AS3722 PMIC
205 chips.
206
207 This driver can also be built as a module. If so, the module
208 will be called rtc-as3722.
209
1abb0dc9 210config RTC_DRV_DS1307
a2166858 211 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
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DB
212 help
213 If you say yes here you get support for various compatible RTC
ae64d169 214 chips (often with battery backup) connected with I2C. This driver
1abb0dc9 215 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
a2166858
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216 EPSON RX-8025 and probably other chips. In some cases the RTC
217 must already have been initialized (by manufacturing or a
218 bootloader).
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219
220 The first seven registers on these chips hold an RTC, and other
221 registers may add features such as NVRAM, a trickle charger for
ae64d169 222 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
682d73f6 223 sysfs, but other chip features may not be available.
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224
225 This driver can also be built as a module. If so, the module
226 will be called rtc-ds1307.
227
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228config RTC_DRV_DS1307_HWMON
229 bool "HWMON support for rtc-ds1307"
230 depends on RTC_DRV_DS1307 && HWMON
231 depends on !(RTC_DRV_DS1307=y && HWMON=m)
232 default y
233 help
234 Say Y here if you want to expose temperature sensor data on
235 rtc-ds1307 (only DS3231)
236
bf4994d7 237config RTC_DRV_DS1374
09b6bdb3 238 tristate "Dallas/Maxim DS1374"
bf4994d7
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239 help
240 If you say yes here you get support for Dallas Semiconductor
ae64d169 241 DS1374 real-time clock chips. If an interrupt is associated
bf4994d7
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242 with the device, the alarm functionality is supported.
243
ae64d169 244 This driver can also be built as a module. If so, the module
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245 will be called rtc-ds1374.
246
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247config RTC_DRV_DS1374_WDT
248 bool "Dallas/Maxim DS1374 watchdog timer"
249 depends on RTC_DRV_DS1374
250 help
251 If you say Y here you will get support for the
252 watchdog timer in the Dallas Semiconductor DS1374
253 real-time clock chips.
254
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255config RTC_DRV_DS1672
256 tristate "Dallas/Maxim DS1672"
9bf5b4f5
AN
257 help
258 If you say yes here you get support for the
09a21e56 259 Dallas/Maxim DS1672 timekeeping chip.
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AN
260
261 This driver can also be built as a module. If so, the module
09a21e56 262 will be called rtc-ds1672.
9bf5b4f5 263
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264config RTC_DRV_HYM8563
265 tristate "Haoyu Microelectronics HYM8563"
3783055e 266 depends on OF
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267 help
268 Say Y to enable support for the HYM8563 I2C RTC chip. Apart
269 from the usual rtc functions it provides a clock output of
270 up to 32kHz.
271
272 This driver can also be built as a module. If so, the module
273 will be called rtc-hym8563.
274
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275config RTC_DRV_LP8788
276 tristate "TI LP8788 RTC driver"
277 depends on MFD_LP8788
278 help
279 Say Y to enable support for the LP8788 RTC/ALARM driver.
280
09a21e56 281config RTC_DRV_MAX6900
09b6bdb3 282 tristate "Maxim MAX6900"
7e56a7dc 283 help
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284 If you say yes here you will get support for the
285 Maxim MAX6900 I2C RTC chip.
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286
287 This driver can also be built as a module. If so, the module
09a21e56 288 will be called rtc-max6900.
7e56a7dc 289
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290config RTC_DRV_MAX8907
291 tristate "Maxim MAX8907"
292 depends on MFD_MAX8907
293 help
294 If you say yes here you will get support for the
295 RTC of Maxim MAX8907 PMIC.
296
297 This driver can also be built as a module. If so, the module
298 will be called rtc-max8907.
299
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300config RTC_DRV_MAX8925
301 tristate "Maxim MAX8925"
302 depends on MFD_MAX8925
303 help
304 If you say yes here you will get support for the
305 RTC of Maxim MAX8925 PMIC.
306
307 This driver can also be built as a module. If so, the module
308 will be called rtc-max8925.
309
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310config RTC_DRV_MAX8998
311 tristate "Maxim MAX8998"
312 depends on MFD_MAX8998
313 help
314 If you say yes here you will get support for the
315 RTC of Maxim MAX8998 PMIC.
316
317 This driver can also be built as a module. If so, the module
318 will be called rtc-max8998.
319
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320config RTC_DRV_MAX8997
321 tristate "Maxim MAX8997"
322 depends on MFD_MAX8997
323 help
324 If you say yes here you will get support for the
325 RTC of Maxim MAX8997 PMIC.
326
327 This driver can also be built as a module. If so, the module
328 will be called rtc-max8997.
329
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330config RTC_DRV_MAX77686
331 tristate "Maxim MAX77686"
726fe738 332 depends on MFD_MAX77686 || MFD_MAX77620
fca1dd03
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333 help
334 If you say yes here you will get support for the
726fe738 335 RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC.
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336
337 This driver can also be built as a module. If so, the module
338 will be called rtc-max77686.
339
3ca1e326 340config RTC_DRV_RK808
5d2fd5c7 341 tristate "Rockchip RK808/RK818 RTC"
3ca1e326
CZ
342 depends on MFD_RK808
343 help
344 If you say yes here you will get support for the
5d2fd5c7 345 RTC of RK808 and RK818 PMIC.
3ca1e326
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346
347 This driver can also be built as a module. If so, the module
348 will be called rk808-rtc.
349
09a21e56 350config RTC_DRV_RS5C372
5d4529be 351 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
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352 help
353 If you say yes here you get support for the
5d4529be 354 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
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355
356 This driver can also be built as a module. If so, the module
09a21e56 357 will be called rtc-rs5c372.
edf1aaa3 358
09a21e56 359config RTC_DRV_ISL1208
09b6bdb3 360 tristate "Intersil ISL1208"
5ec3e4b7
AN
361 help
362 If you say yes here you get support for the
09b6bdb3 363 Intersil ISL1208 RTC chip.
5ec3e4b7
AN
364
365 This driver can also be built as a module. If so, the module
09a21e56 366 will be called rtc-isl1208.
5ec3e4b7 367
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368config RTC_DRV_ISL12022
369 tristate "Intersil ISL12022"
370 help
371 If you say yes here you get support for the
372 Intersil ISL12022 RTC chip.
373
374 This driver can also be built as a module. If so, the module
375 will be called rtc-isl12022.
376
70e12337 377config RTC_DRV_ISL12057
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378 select REGMAP_I2C
379 tristate "Intersil ISL12057"
380 help
70e12337
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381 If you say yes here you get support for the Intersil ISL12057
382 I2C RTC chip.
383
384 This driver can also be built as a module. If so, the module
385 will be called rtc-isl12057.
386
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387config RTC_DRV_X1205
388 tristate "Xicor/Intersil X1205"
db68b189 389 help
09a21e56
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390 If you say yes here you get support for the
391 Xicor/Intersil X1205 RTC chip.
392
393 This driver can also be built as a module. If so, the module
394 will be called rtc-x1205.
db68b189 395
f803f0d0
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396config RTC_DRV_PCF8523
397 tristate "NXP PCF8523"
398 help
399 If you say yes here you get support for the NXP PCF8523 RTC
400 chips.
401
402 This driver can also be built as a module. If so, the module
403 will be called rtc-pcf8523.
404
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405config RTC_DRV_PCF85063
406 tristate "NXP PCF85063"
407 help
408 If you say yes here you get support for the PCF85063 RTC chip
409
410 This driver can also be built as a module. If so, the module
411 will be called rtc-pcf85063.
412
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413config RTC_DRV_PCF8563
414 tristate "Philips PCF8563/Epson RTC8564"
b5a82d62
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415 help
416 If you say yes here you get support for the
417 Philips PCF8563 RTC chip. The Epson RTC8564
418 should work as well.
419
420 This driver can also be built as a module. If so, the module
421 will be called rtc-pcf8563.
422
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423config RTC_DRV_PCF8583
424 tristate "Philips PCF8583"
9c0c5705 425 help
bb71f99f 426 If you say yes here you get support for the Philips PCF8583
09a21e56 427 RTC chip found on Acorn RiscPCs. This driver supports the
bb71f99f 428 platform specific method of retrieving the current year from
09a21e56
AZ
429 the RTC's SRAM. It will work on other platforms with the same
430 chip, but the year will probably have to be tweaked.
9c0c5705
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431
432 This driver can also be built as a module. If so, the module
433 will be called rtc-pcf8583.
434
caaff562 435config RTC_DRV_M41T80
6b1a5235 436 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible"
caaff562 437 help
d3a126fc
SF
438 If you say Y here you will get support for the ST M41T60
439 and M41T80 RTC chips series. Currently, the following chips are
f30281f4 440 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
6b1a5235 441 M41ST85, M41ST87, and MicroCrystal RV4162.
caaff562
AN
442
443 This driver can also be built as a module. If so, the module
444 will be called rtc-m41t80.
445
617780d2 446config RTC_DRV_M41T80_WDT
d3a126fc 447 bool "ST M41T65/M41T80 series RTC watchdog timer"
617780d2
AN
448 depends on RTC_DRV_M41T80
449 help
450 If you say Y here you will get support for the
d3a126fc 451 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
617780d2 452
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453config RTC_DRV_BQ32K
454 tristate "TI BQ32000"
455 help
456 If you say Y here you will get support for the TI
457 BQ32000 I2C RTC chip.
458
459 This driver can also be built as a module. If so, the module
460 will be called rtc-bq32k.
461
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462config RTC_DRV_DM355EVM
463 tristate "TI DaVinci DM355 EVM RTC"
464 depends on MFD_DM355EVM_MSP
465 help
466 Supports the RTC firmware in the MSP430 on the DM355 EVM.
467
0c4a59fe 468config RTC_DRV_TWL92330
6341e62b 469 bool "TI TWL92330/Menelaus"
bb35fb20 470 depends on MENELAUS
0c4a59fe
TL
471 help
472 If you say yes here you get support for the RTC on the
01dd2fbf 473 TWL92330 "Menelaus" power management chip, used with OMAP2
ae64d169 474 platforms. The support is integrated with the rest of
0c4a59fe
TL
475 the Menelaus driver; it's not separate module.
476
f96411ab 477config RTC_DRV_TWL4030
a6b49ffd 478 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
6b8029fa 479 depends on TWL4030_CORE
f96411ab
DB
480 help
481 If you say yes here you get support for the RTC on the
a6b49ffd 482 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
f96411ab
DB
483
484 This driver can also be built as a module. If so, the module
a6b49ffd 485 will be called rtc-twl.
f96411ab 486
d084885e
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487config RTC_DRV_PALMAS
488 tristate "TI Palmas RTC driver"
489 depends on MFD_PALMAS
490 help
491 If you say yes here you get support for the RTC of TI PALMA series PMIC
492 chips.
493
494 This driver can also be built as a module. If so, the module
495 will be called rtc-palma.
496
dc59ed38
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497config RTC_DRV_TPS6586X
498 tristate "TI TPS6586X RTC driver"
499 depends on MFD_TPS6586X
500 help
a895d57d 501 TI Power Management IC TPS6586X supports RTC functionality
dc59ed38
LD
502 along with alarm. This driver supports the RTC driver for
503 the TPS6586X RTC module.
504
0e783980
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505config RTC_DRV_TPS65910
506 tristate "TI TPS65910 RTC driver"
507 depends on RTC_CLASS && MFD_TPS65910
508 help
509 If you say yes here you get support for the RTC on the
510 TPS65910 chips.
511
512 This driver can also be built as a module. If so, the module
513 will be called rtc-tps65910.
514
36d61824
LD
515config RTC_DRV_TPS80031
516 tristate "TI TPS80031/TPS80032 RTC driver"
517 depends on MFD_TPS80031
518 help
a895d57d 519 TI Power Management IC TPS80031 supports RTC functionality
36d61824
LD
520 along with alarm. This driver supports the RTC driver for
521 the TPS80031 RTC module.
522
90829c08
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523config RTC_DRV_RC5T583
524 tristate "RICOH 5T583 RTC driver"
525 depends on MFD_RC5T583
526 help
527 If you say yes here you get support for the RTC on the
528 RICOH 5T583 chips.
529
530 This driver can also be built as a module. If so, the module
531 will be called rtc-rc5t583.
532
c46288b0
BB
533config RTC_DRV_S35390A
534 tristate "Seiko Instruments S-35390A"
d479540d 535 select BITREVERSE
c46288b0
BB
536 help
537 If you say yes here you will get support for the Seiko
538 Instruments S-35390A.
539
540 This driver can also be built as a module. If so the module
541 will be called rtc-s35390a.
542
c6d8f400
SL
543config RTC_DRV_FM3130
544 tristate "Ramtron FM3130"
545 help
546 If you say Y here you will get support for the
547 Ramtron FM3130 RTC chips.
548 Ramtron FM3130 is a chip with two separate devices inside,
549 RTC clock and FRAM. This driver provides only RTC functionality.
550
551 This driver can also be built as a module. If so the module
552 will be called rtc-fm3130.
553
ed13d89b
AB
554config RTC_DRV_RX8010
555 tristate "Epson RX8010SJ"
556 depends on I2C
557 help
558 If you say yes here you get support for the Epson RX8010SJ RTC
559 chip.
560
561 This driver can also be built as a module. If so, the module
562 will be called rtc-rx8010.
563
a7fa9851
MW
564config RTC_DRV_RX8581
565 tristate "Epson RX-8581"
566 help
567 If you say yes here you will get support for the Epson RX-8581.
568
569 This driver can also be built as a module. If so the module
570 will be called rtc-rx8581.
571
3c2b9075
WG
572config RTC_DRV_RX8025
573 tristate "Epson RX-8025SA/NB"
574 help
575 If you say yes here you get support for the Epson
576 RX-8025SA/NB RTC chips.
577
578 This driver can also be built as a module. If so, the module
579 will be called rtc-rx8025.
580
ae3551f9
MR
581config RTC_DRV_EM3027
582 tristate "EM Microelectronic EM3027"
583 help
584 If you say yes here you get support for the EM
585 Microelectronic EM3027 RTC chips.
586
587 This driver can also be built as a module. If so, the module
588 will be called rtc-em3027.
589
1e3929ef 590config RTC_DRV_RV8803
34166a00 591 tristate "Micro Crystal RV8803, Epson RX8900"
1e3929ef 592 help
34166a00
BT
593 If you say yes here you get support for the Micro Crystal RV8803 and
594 Epson RX8900 RTC chips.
1e3929ef
AB
595
596 This driver can also be built as a module. If so, the module
597 will be called rtc-rv8803.
598
5bccae6e 599config RTC_DRV_S5M
0c5deb1e 600 tristate "Samsung S2M/S5M series"
5bccae6e
SK
601 depends on MFD_SEC_CORE
602 help
603 If you say yes here you will get support for the
0c5deb1e 604 RTC of Samsung S2MPS14 and S5M PMIC series.
5bccae6e
SK
605
606 This driver can also be built as a module. If so, the module
607 will be called rtc-s5m.
608
bb35fb20
JE
609endif # I2C
610
09a21e56 611comment "SPI RTC drivers"
bb35fb20
JE
612
613if SPI_MASTER
09a21e56 614
74d34d4b 615config RTC_DRV_M41T93
98ab2c93
AB
616 tristate "ST M41T93"
617 help
618 If you say yes here you will get support for the
619 ST M41T93 SPI RTC chip.
74d34d4b 620
98ab2c93
AB
621 This driver can also be built as a module. If so, the module
622 will be called rtc-m41t93.
74d34d4b 623
8fc2c767
KH
624config RTC_DRV_M41T94
625 tristate "ST M41T94"
626 help
627 If you say yes here you will get support for the
628 ST M41T94 SPI RTC chip.
629
630 This driver can also be built as a module. If so, the module
631 will be called rtc-m41t94.
632
d25a5ed3
SY
633config RTC_DRV_DS1302
634 tristate "Dallas/Maxim DS1302"
635 depends on SPI
636 help
637 If you say yes here you get support for the Dallas DS1302 RTC chips.
638
639 This driver can also be built as a module. If so, the module
640 will be called rtc-ds1302.
641
53e84b67
DB
642config RTC_DRV_DS1305
643 tristate "Dallas/Maxim DS1305/DS1306"
644 help
645 Select this driver to get support for the Dallas/Maxim DS1305
ae64d169 646 and DS1306 real time clock chips. These support a trickle
53e84b67
DB
647 charger, alarms, and NVRAM in addition to the clock.
648
649 This driver can also be built as a module. If so, the module
650 will be called rtc-ds1305.
651
1d6316f5 652config RTC_DRV_DS1343
0dd449b1 653 select REGMAP_SPI
1d6316f5
RG
654 tristate "Dallas/Maxim DS1343/DS1344"
655 help
656 If you say yes here you get support for the
657 Dallas/Maxim DS1343 and DS1344 real time clock chips.
658 Support for trickle charger, alarm is provided.
659
660 This driver can also be built as a module. If so, the module
661 will be called rtc-ds1343.
662
617b26a0
RG
663config RTC_DRV_DS1347
664 tristate "Dallas/Maxim DS1347"
665 help
666 If you say yes here you get support for the
667 Dallas/Maxim DS1347 chips.
668
669 This driver only supports the RTC feature, and not other chip
670 features such as alarms.
671
672 This driver can also be built as a module. If so, the module
673 will be called rtc-ds1347.
674
06de1808
MJ
675config RTC_DRV_DS1390
676 tristate "Dallas/Maxim DS1390/93/94"
677 help
7b9b2ef1
AZ
678 If you say yes here you get support for the
679 Dallas/Maxim DS1390/93/94 chips.
06de1808 680
fa395fb8
IG
681 This driver supports the RTC feature and trickle charging but not
682 other chip features such as alarms.
06de1808
MJ
683
684 This driver can also be built as a module. If so, the module
685 will be called rtc-ds1390.
686
06776c89
VP
687config RTC_DRV_MAX6916
688 tristate "Maxim MAX6916"
689 help
690 If you say yes here you will get support for the
691 Maxim MAX6916 SPI RTC chip.
692
693 This driver only supports the RTC feature, and not other chip
694 features such as alarms.
695
696 This driver can also be built as a module. If so, the module
697 will be called rtc-max6916.
698
2805b969
MD
699config RTC_DRV_R9701
700 tristate "Epson RTC-9701JE"
701 help
702 If you say yes here you will get support for the
703 Epson RTC-9701JE SPI RTC chip.
704
705 This driver can also be built as a module. If so, the module
706 will be called rtc-r9701.
707
d084885e
SB
708config RTC_DRV_RX4581
709 tristate "Epson RX-4581"
710 help
711 If you say yes here you will get support for the Epson RX-4581.
712
713 This driver can also be built as a module. If so the module
714 will be called rtc-rx4581.
715
716config RTC_DRV_RX6110
717 tristate "Epson RX-6110"
718 select REGMAP_SPI
719 help
720 If you say yes here you will get support for the Epson RX-6610.
721
722 This driver can also be built as a module. If so the module
723 will be called rtc-rx6110.
724
e0ac4761
AN
725config RTC_DRV_RS5C348
726 tristate "Ricoh RS5C348A/B"
e0ac4761
AN
727 help
728 If you say yes here you get support for the
729 Ricoh RS5C348A and RS5C348B RTC chips.
730
731 This driver can also be built as a module. If so, the module
732 will be called rtc-rs5c348.
733
d084885e
SB
734config RTC_DRV_MAX6902
735 tristate "Maxim MAX6902"
736 help
737 If you say yes here you will get support for the
738 Maxim MAX6902 SPI RTC chip.
739
740 This driver can also be built as a module. If so, the module
741 will be called rtc-max6902.
742
7f3923a1
CV
743config RTC_DRV_PCF2123
744 tristate "NXP PCF2123"
745 help
746 If you say yes here you get support for the NXP PCF2123
747 RTC chip.
748
749 This driver can also be built as a module. If so, the module
750 will be called rtc-pcf2123.
751
1fcbe42c
JG
752config RTC_DRV_MCP795
753 tristate "Microchip MCP795"
754 help
755 If you say yes here you will get support for the Microchip MCP795.
756
757 This driver can also be built as a module. If so the module
758 will be called rtc-mcp795.
759
bb35fb20
JE
760endif # SPI_MASTER
761
080481f5
AM
762#
763# Helper to resolve issues with configs that have SPI enabled but I2C
764# modular. See SND_SOC_I2C_AND_SPI for more information
765#
766config RTC_I2C_AND_SPI
767 tristate
768 default m if I2C=m
769 default y if I2C=y
770 default y if SPI_MASTER=y
771 select REGMAP_I2C if I2C
772 select REGMAP_SPI if SPI_MASTER
773
774comment "SPI and I2C RTC drivers"
775
776config RTC_DRV_DS3232
777 tristate "Dallas/Maxim DS3232/DS3234"
778 depends on RTC_I2C_AND_SPI
779 help
780 If you say yes here you get support for Dallas Semiconductor
781 DS3232 and DS3234 real-time clock chips. If an interrupt is associated
782 with the device, the alarm functionality is supported.
783
784 This driver can also be built as a module. If so, the module
785 will be called rtc-ds3232.
786
9408ec1a
AM
787config RTC_DRV_PCF2127
788 tristate "NXP PCF2127"
789 depends on RTC_I2C_AND_SPI
790 help
791 If you say yes here you get support for the NXP PCF2127/29 RTC
792 chips.
793
794 This driver can also be built as a module. If so, the module
795 will be called rtc-pcf2127.
796
c2a1c145
MJ
797config RTC_DRV_RV3029C2
798 tristate "Micro Crystal RV3029/3049"
799 depends on RTC_I2C_AND_SPI
800 help
801 If you say yes here you get support for the Micro Crystal
802 RV3029 and RV3049 RTC chips.
803
804 This driver can also be built as a module. If so, the module
805 will be called rtc-rv3029c2.
806
807config RTC_DRV_RV3029_HWMON
808 bool "HWMON support for RV3029/3049"
809 depends on RTC_DRV_RV3029C2 && HWMON
810 depends on !(RTC_DRV_RV3029C2=y && HWMON=m)
811 default y
812 help
813 Say Y here if you want to expose temperature sensor data on
814 rtc-rv3029.
815
09a21e56 816comment "Platform RTC drivers"
09a21e56
AZ
817
818# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
819# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
820# global rtc_lock ... it's not yet just another platform_device.
821
822config RTC_DRV_CMOS
823 tristate "PC-style 'CMOS'"
5ee98ab3 824 depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 || MN10300
c7500900 825 default y if X86
d6faca40 826 select RTC_MC146818_LIB
09a21e56
AZ
827 help
828 Say "yes" here to get direct support for the real time clock
829 found in every PC or ACPI-based system, and some other boards.
830 Specifically the original MC146818, compatibles like those in
831 PC south bridges, the DS12887 or M48T86, some multifunction
832 or LPC bus chips, and so on.
833
834 Your system will need to define the platform device used by
ae64d169 835 this driver, otherwise it won't be accessible. This means
09a21e56
AZ
836 you can safely enable this driver if you don't know whether
837 or not your board has this kind of hardware.
838
839 This driver can also be built as a module. If so, the module
840 will be called rtc-cmos.
841
85d0b3a5
RH
842config RTC_DRV_ALPHA
843 bool "Alpha PC-style CMOS"
844 depends on ALPHA
d6faca40 845 select RTC_MC146818_LIB
85d0b3a5
RH
846 default y
847 help
848 Direct support for the real-time clock found on every Alpha
849 system, specifically MC146818 compatibles. If in doubt, say Y.
850
0146f261 851config RTC_DRV_VRTC
933b9463
AC
852 tristate "Virtual RTC for Intel MID platforms"
853 depends on X86_INTEL_MID
854 default y if X86_INTEL_MID
0146f261
FT
855
856 help
857 Say "yes" here to get direct support for the real time clock
858 found on Moorestown platforms. The VRTC is a emulated RTC that
859 derives its clock source from a real RTC in the PMIC. The MC146818
860 style programming interface is mostly conserved, but any
861 updates are done via IPC calls to the system controller FW.
862
537739de
TB
863config RTC_DRV_DS1216
864 tristate "Dallas DS1216"
bb35fb20 865 depends on SNI_RM
537739de
TB
866 help
867 If you say yes here you get support for the Dallas DS1216 RTC chips.
868
5f119f29
TB
869config RTC_DRV_DS1286
870 tristate "Dallas DS1286"
706b632d 871 depends on HAS_IOMEM
5f119f29
TB
872 help
873 If you say yes here you get support for the Dallas DS1286 RTC chips.
874
8f26795a
AS
875config RTC_DRV_DS1511
876 tristate "Dallas DS1511"
706b632d 877 depends on HAS_IOMEM
8f26795a
AS
878 help
879 If you say yes here you get support for the
880 Dallas DS1511 timekeeping/watchdog chip.
881
882 This driver can also be built as a module. If so, the module
883 will be called rtc-ds1511.
884
09a21e56 885config RTC_DRV_DS1553
09b6bdb3 886 tristate "Maxim/Dallas DS1553"
706b632d 887 depends on HAS_IOMEM
7520b94d
AZ
888 help
889 If you say yes here you get support for the
09b6bdb3 890 Maxim/Dallas DS1553 timekeeping chip.
7520b94d
AZ
891
892 This driver can also be built as a module. If so, the module
09a21e56
AZ
893 will be called rtc-ds1553.
894
aaaf5fbf
JK
895config RTC_DRV_DS1685_FAMILY
896 tristate "Dallas/Maxim DS1685 Family"
897 help
898 If you say yes here you get support for the Dallas/Maxim DS1685
899 family of real time chips. This family includes the DS1685/DS1687,
900 DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and
901 DS17885/DS17887 chips.
902
903 This driver can also be built as a module. If so, the module
904 will be called rtc-ds1685.
905
906choice
907 prompt "Subtype"
908 depends on RTC_DRV_DS1685_FAMILY
909 default RTC_DRV_DS1685
910
911config RTC_DRV_DS1685
912 bool "DS1685/DS1687"
913 help
914 This enables support for the Dallas/Maxim DS1685/DS1687 real time
915 clock chip.
916
917 This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30)
918 systems, as well as EPPC-405-UC modules by electronic system design
919 GmbH.
920
921config RTC_DRV_DS1689
922 bool "DS1689/DS1693"
923 help
924 This enables support for the Dallas/Maxim DS1689/DS1693 real time
925 clock chip.
926
927 This is an older RTC chip, supplanted by the DS1685/DS1687 above,
928 which supports a few minor features such as Vcc, Vbat, and Power
929 Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
930
931 It also works for the even older DS1688/DS1691 RTC chips, which are
932 virtually the same and carry the same model number. Both chips
933 have 114 bytes of user NVRAM.
934
935config RTC_DRV_DS17285
936 bool "DS17285/DS17287"
937 help
938 This enables support for the Dallas/Maxim DS17285/DS17287 real time
939 clock chip.
940
941 This chip features 2kb of extended NV-SRAM. It may possibly be
942 found in some SGI O2 systems (rare).
943
944config RTC_DRV_DS17485
945 bool "DS17485/DS17487"
946 help
947 This enables support for the Dallas/Maxim DS17485/DS17487 real time
948 clock chip.
949
950 This chip features 4kb of extended NV-SRAM.
951
952config RTC_DRV_DS17885
953 bool "DS17885/DS17887"
954 help
955 This enables support for the Dallas/Maxim DS17885/DS17887 real time
956 clock chip.
957
958 This chip features 8kb of extended NV-SRAM.
959
960endchoice
961
962config RTC_DS1685_PROC_REGS
963 bool "Display register values in /proc"
964 depends on RTC_DRV_DS1685_FAMILY && PROC_FS
965 help
966 Enable this to display a readout of all of the RTC registers in
967 /proc/drivers/rtc. Keep in mind that this can potentially lead
968 to lost interrupts, as reading Control Register C will clear
969 all pending IRQ flags.
970
971 Unless you are debugging this driver, choose N.
972
973config RTC_DS1685_SYSFS_REGS
974 bool "SysFS access to RTC register bits"
975 depends on RTC_DRV_DS1685_FAMILY && SYSFS
976 help
977 Enable this to provide access to the RTC control register bits
978 in /sys. Some of the bits are read-write, others are read-only.
979
980 Keep in mind that reading Control C's bits automatically clears
981 all pending IRQ flags - this can cause lost interrupts.
982
983 If you know that you need access to these bits, choose Y, Else N.
984
09b6bdb3
AZ
985config RTC_DRV_DS1742
986 tristate "Maxim/Dallas DS1742/1743"
706b632d 987 depends on HAS_IOMEM
02964115
TH
988 help
989 If you say yes here you get support for the
09b6bdb3 990 Maxim/Dallas DS1742/1743 timekeeping chip.
02964115
TH
991
992 This driver can also be built as a module. If so, the module
09b6bdb3 993 will be called rtc-ds1742.
02964115 994
ad0200f7
JD
995config RTC_DRV_DS2404
996 tristate "Maxim/Dallas DS2404"
997 help
998 If you say yes here you get support for the
999 Dallas DS2404 RTC chip.
1000
1001 This driver can also be built as a module. If so, the module
1002 will be called rtc-ds2404.
1003
fef931ff
AJ
1004config RTC_DRV_DA9052
1005 tristate "Dialog DA9052/DA9053 RTC"
1006 depends on PMIC_DA9052
1007 help
1008 Say y here to support the RTC driver for Dialog Semiconductor
1009 DA9052-BC and DA9053-AA/Bx PMICs.
1010
6920d996
AJ
1011config RTC_DRV_DA9055
1012 tristate "Dialog Semiconductor DA9055 RTC"
1013 depends on MFD_DA9055
1014 help
1015 If you say yes here you will get support for the
1016 RTC of the Dialog DA9055 PMIC.
1017
1018 This driver can also be built as a module. If so, the module
1019 will be called rtc-da9055
1020
c2a57550 1021config RTC_DRV_DA9063
80ca3277
T
1022 tristate "Dialog Semiconductor DA9063/DA9062 RTC"
1023 depends on MFD_DA9063 || MFD_DA9062
c2a57550
OST
1024 help
1025 If you say yes here you will get support for the RTC subsystem
80ca3277 1026 for the Dialog Semiconductor PMIC chips DA9063 and DA9062.
c2a57550
OST
1027
1028 This driver can also be built as a module. If so, the module
1029 will be called "rtc-da9063".
1030
5e3fd9e5 1031config RTC_DRV_EFI
1032 tristate "EFI RTC"
7efe6659 1033 depends on EFI && !X86
5e3fd9e5 1034 help
1035 If you say yes here you will get support for the EFI
1036 Real Time Clock.
1037
1038 This driver can also be built as a module. If so, the module
1039 will be called rtc-efi.
1040
09b6bdb3
AZ
1041config RTC_DRV_STK17TA8
1042 tristate "Simtek STK17TA8"
706b632d 1043 depends on HAS_IOMEM
09a21e56
AZ
1044 help
1045 If you say yes here you get support for the
09b6bdb3 1046 Simtek STK17TA8 timekeeping chip.
09a21e56
AZ
1047
1048 This driver can also be built as a module. If so, the module
09b6bdb3 1049 will be called rtc-stk17ta8.
09a21e56
AZ
1050
1051config RTC_DRV_M48T86
1052 tristate "ST M48T86/Dallas DS12887"
09a21e56
AZ
1053 help
1054 If you say Y here you will get support for the
1055 ST M48T86 and Dallas DS12887 RTC chips.
1056
1057 This driver can also be built as a module. If so, the module
1058 will be called rtc-m48t86.
1059
d1dbd82e
TB
1060config RTC_DRV_M48T35
1061 tristate "ST M48T35"
706b632d 1062 depends on HAS_IOMEM
d1dbd82e
TB
1063 help
1064 If you say Y here you will get support for the
1065 ST M48T35 RTC chip.
1066
1067 This driver can also be built as a module, if so, the module
1068 will be called "rtc-m48t35".
1069
2e774c7c 1070config RTC_DRV_M48T59
94fe7424 1071 tristate "ST M48T59/M48T08/M48T02"
706b632d 1072 depends on HAS_IOMEM
2e774c7c
MZ
1073 help
1074 If you say Y here you will get support for the
94fe7424
KH
1075 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
1076
1077 These chips are usually found in Sun SPARC and UltraSPARC
1078 workstations.
2e774c7c
MZ
1079
1080 This driver can also be built as a module, if so, the module
1081 will be called "rtc-m48t59".
1082
4f9b9bba
GU
1083config RTC_DRV_MSM6242
1084 tristate "Oki MSM6242"
706b632d 1085 depends on HAS_IOMEM
4f9b9bba
GU
1086 help
1087 If you say yes here you get support for the Oki MSM6242
1088 timekeeping chip. It is used in some Amiga models (e.g. A2000).
1089
1090 This driver can also be built as a module. If so, the module
1091 will be called rtc-msm6242.
1092
cca4c231
DM
1093config RTC_DRV_BQ4802
1094 tristate "TI BQ4802"
706b632d 1095 depends on HAS_IOMEM
cca4c231
DM
1096 help
1097 If you say Y here you will get support for the TI
1098 BQ4802 RTC chip.
1099
1100 This driver can also be built as a module. If so, the module
1101 will be called rtc-bq4802.
1102
4f672ce2
GU
1103config RTC_DRV_RP5C01
1104 tristate "Ricoh RP5C01"
706b632d 1105 depends on HAS_IOMEM
4f672ce2
GU
1106 help
1107 If you say yes here you get support for the Ricoh RP5C01
1108 timekeeping chip. It is used in some Amiga models (e.g. A3000
1109 and A4000).
1110
1111 This driver can also be built as a module. If so, the module
1112 will be called rtc-rp5c01.
1113
09a21e56
AZ
1114config RTC_DRV_V3020
1115 tristate "EM Microelectronic V3020"
09a21e56
AZ
1116 help
1117 If you say yes here you will get support for the
1118 EM Microelectronic v3020 RTC chip.
1119
1120 This driver can also be built as a module. If so, the module
1121 will be called rtc-v3020.
1122
35c86bf6
MB
1123config RTC_DRV_WM831X
1124 tristate "Wolfson Microelectronics WM831x RTC"
1125 depends on MFD_WM831X
1126 help
1127 If you say yes here you will get support for the RTC subsystem
1128 of the Wolfson Microelectronics WM831X series PMICs.
1129
1130 This driver can also be built as a module. If so, the module
1131 will be called "rtc-wm831x".
1132
077eaf5b
MB
1133config RTC_DRV_WM8350
1134 tristate "Wolfson Microelectronics WM8350 RTC"
1135 depends on MFD_WM8350
1136 help
1137 If you say yes here you will get support for the RTC subsystem
1138 of the Wolfson Microelectronics WM8350.
1139
1140 This driver can also be built as a module. If so, the module
1141 will be called "rtc-wm8350".
1142
0942a71e
RK
1143config RTC_DRV_SPEAR
1144 tristate "SPEAR ST RTC"
7a587eae 1145 depends on PLAT_SPEAR || COMPILE_TEST
0942a71e
RK
1146 default y
1147 help
1148 If you say Y here you will get support for the RTC found on
1149 spear
1150
eae854b2
BR
1151config RTC_DRV_PCF50633
1152 depends on MFD_PCF50633
1153 tristate "NXP PCF50633 RTC"
1154 help
1155 If you say yes here you get support for the RTC subsystem of the
1156 NXP PCF50633 used in embedded systems.
1157
bd207cfb
LW
1158config RTC_DRV_AB3100
1159 tristate "ST-Ericsson AB3100 RTC"
1160 depends on AB3100_CORE
1161 default y if AB3100_CORE
1162 help
1163 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
1164 support. This chip contains a battery- and capacitor-backed RTC.
1165
0af62f4d
VS
1166config RTC_DRV_AB8500
1167 tristate "ST-Ericsson AB8500 RTC"
1168 depends on AB8500_CORE
651fb480 1169 select RTC_INTF_DEV
dc43d4a2 1170 select RTC_INTF_DEV_UIE_EMUL
0af62f4d
VS
1171 help
1172 Select this to enable the ST-Ericsson AB8500 power management IC RTC
1173 support. This chip contains a battery- and capacitor-backed RTC.
1174
afd49a7e
WZ
1175config RTC_DRV_NUC900
1176 tristate "NUC910/NUC920 RTC driver"
7a587eae 1177 depends on ARCH_W90X900 || COMPILE_TEST
afd49a7e
WZ
1178 help
1179 If you say yes here you get support for the RTC subsystem of the
1180 NUC910/NUC920 used in embedded systems.
bd207cfb 1181
16b1d26e
NG
1182config RTC_DRV_OPAL
1183 tristate "IBM OPAL RTC driver"
1184 depends on PPC_POWERNV
1185 default y
1186 help
1187 If you say yes here you get support for the PowerNV platform RTC
1188 driver based on OPAL interfaces.
1189
1190 This driver can also be built as a module. If so, the module
1191 will be called rtc-opal.
1192
11143c19
SG
1193config RTC_DRV_ZYNQMP
1194 tristate "Xilinx Zynq Ultrascale+ MPSoC RTC"
1195 depends on OF
1196 help
1197 If you say yes here you get support for the RTC controller found on
1198 Xilinx Zynq Ultrascale+ MPSoC.
1199
09a21e56 1200comment "on-CPU RTC drivers"
09a21e56 1201
125e550f
OR
1202config RTC_DRV_ASM9260
1203 tristate "Alphascale asm9260 RTC"
1204 depends on MACH_ASM9260
1205 help
1206 If you say yes here you get support for the RTC on the
1207 Alphascale asm9260 SoC.
1208
1209 This driver can also be built as a module. If so, the module
1210 will be called rtc-asm9260.
1211
8ecf6c54
MA
1212config RTC_DRV_DAVINCI
1213 tristate "TI DaVinci RTC"
7a587eae 1214 depends on ARCH_DAVINCI_DM365 || COMPILE_TEST
8ecf6c54
MA
1215 help
1216 If you say yes here you get support for the RTC on the
1217 DaVinci platforms (DM365).
1218
1219 This driver can also be built as a module. If so, the module
1220 will be called rtc-davinci.
1221
ba172208
BS
1222config RTC_DRV_DIGICOLOR
1223 tristate "Conexant Digicolor RTC"
7a587eae 1224 depends on ARCH_DIGICOLOR || COMPILE_TEST
ba172208
BS
1225 help
1226 If you say yes here you get support for the RTC on Conexant
1227 Digicolor platforms. This currently includes the CX92755 SoC.
1228
1229 This driver can also be built as a module. If so, the module
1230 will be called rtc-digicolor.
1231
b224b9ac
FE
1232config RTC_DRV_IMXDI
1233 tristate "Freescale IMX DryIce Real Time Clock"
ef216ad0 1234 depends on ARCH_MXC
b224b9ac
FE
1235 help
1236 Support for Freescale IMX DryIce RTC
1237
1238 This driver can also be built as a module, if so, the module
1239 will be called "rtc-imxdi".
1240
09a21e56 1241config RTC_DRV_OMAP
8608976e 1242 tristate "TI OMAP Real Time Clock"
7a587eae 1243 depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST
09a21e56 1244 help
427af9a6 1245 Say "yes" here to support the on chip real time clock
8608976e 1246 present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
427af9a6
AM
1247
1248 This driver can also be built as a module, if so, module
1249 will be called rtc-omap.
7520b94d 1250
16f4efe7
AD
1251config HAVE_S3C_RTC
1252 bool
1253 help
1254 This will include RTC support for Samsung SoCs. If
1255 you want to include RTC support for any machine, kindly
1256 select this in the respective mach-XXXX/Kconfig file.
1257
1add6781
BD
1258config RTC_DRV_S3C
1259 tristate "Samsung S3C series SoC RTC"
7a587eae 1260 depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST
1add6781
BD
1261 help
1262 RTC (Realtime Clock) driver for the clock inbuilt into the
1263 Samsung S3C24XX series of SoCs. This can provide periodic
1264 interrupt rates from 1Hz to 64Hz for user programs, and
1265 wakeup from Alarm.
1266
1267 The driver currently supports the common features on all the
1268 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
1269 and S3C2442.
1270
1271 This driver can also be build as a module. If so, the module
1272 will be called rtc-s3c.
1273
fd507e2f
AZ
1274config RTC_DRV_EP93XX
1275 tristate "Cirrus Logic EP93XX"
7a587eae 1276 depends on ARCH_EP93XX || COMPILE_TEST
fd507e2f
AZ
1277 help
1278 If you say yes here you get support for the
1279 RTC embedded in the Cirrus Logic EP93XX processors.
1280
1281 This driver can also be built as a module. If so, the module
1282 will be called rtc-ep93xx.
1283
e842f1c8 1284config RTC_DRV_SA1100
3888c090
HZ
1285 tristate "SA11x0/PXA2xx/PXA910"
1286 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
e842f1c8
RP
1287 help
1288 If you say Y here you will get access to the real time clock
1289 built into your SA11x0 or PXA2xx CPU.
1290
1291 To compile this driver as a module, choose M here: the
1292 module will be called rtc-sa1100.
fd507e2f 1293
317a6104
PM
1294config RTC_DRV_SH
1295 tristate "SuperH On-Chip RTC"
6b8029fa 1296 depends on SUPERH && HAVE_CLK
317a6104
PM
1297 help
1298 Say Y here to enable support for the on-chip RTC found in
1299 most SuperH processors.
1300
98ab2c93 1301 To compile this driver as a module, choose M here: the
317a6104
PM
1302 module will be called rtc-sh.
1303
8417eb7a 1304config RTC_DRV_VR41XX
3e16f6af 1305 tristate "NEC VR41XX"
7a587eae 1306 depends on CPU_VR41XX || COMPILE_TEST
3e16f6af
AZ
1307 help
1308 If you say Y here you will get access to the real time clock
1309 built into your NEC VR41XX CPU.
1310
1311 To compile this driver as a module, choose M here: the
1312 module will be called rtc-vr41xx.
8417eb7a 1313
a190901c
RK
1314config RTC_DRV_PL030
1315 tristate "ARM AMBA PL030 RTC"
1316 depends on ARM_AMBA
1317 help
1318 If you say Y here you will get access to ARM AMBA
1319 PrimeCell PL030 RTC found on certain ARM SOCs.
1320
1321 To compile this driver as a module, choose M here: the
1322 module will be called rtc-pl030.
1323
8ae6e163
DS
1324config RTC_DRV_PL031
1325 tristate "ARM AMBA PL031 RTC"
bb35fb20 1326 depends on ARM_AMBA
8ae6e163
DS
1327 help
1328 If you say Y here you will get access to ARM AMBA
09a21e56 1329 PrimeCell PL031 RTC found on certain ARM SOCs.
8ae6e163
DS
1330
1331 To compile this driver as a module, choose M here: the
1332 module will be called rtc-pl031.
1333
fa04e78b
HCE
1334config RTC_DRV_AT32AP700X
1335 tristate "AT32AP700X series RTC"
7a587eae 1336 depends on PLATFORM_AT32AP || COMPILE_TEST
fa04e78b
HCE
1337 help
1338 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
1339 AT32AP700x family processors.
1340
7fc39f6d 1341config RTC_DRV_AT91RM9200
24cecc1b 1342 tristate "AT91RM9200 or some AT91SAM9 RTC"
7a587eae 1343 depends on ARCH_AT91 || COMPILE_TEST
4cdf854f
DB
1344 help
1345 Driver for the internal RTC (Realtime Clock) module found on
24cecc1b 1346 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
4cdf854f
DB
1347 this is powered by the backup power supply.
1348
1349config RTC_DRV_AT91SAM9
3969eb48 1350 tristate "AT91SAM9 RTT as RTC"
7a587eae 1351 depends on ARCH_AT91 || COMPILE_TEST
43e112bb 1352 select MFD_SYSCON
4cdf854f 1353 help
3969eb48
BB
1354 Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which
1355 can be used as an RTC thanks to the backup power supply (e.g. a
1356 small coin cell battery) which keeps this block and the GPBR
1357 (General Purpose Backup Registers) block powered when the device
1358 is shutdown.
1359 Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd
1360 probably want to use the real RTC block instead of the "RTT as an
1361 RTC" driver.
4cdf854f 1362
45fd8a0c
ML
1363config RTC_DRV_AU1XXX
1364 tristate "Au1xxx Counter0 RTC support"
42a4f17d 1365 depends on MIPS_ALCHEMY
45fd8a0c
ML
1366 help
1367 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
1368 counter) to be used as a RTC.
1369
1370 This driver can also be built as a module. If so, the module
1371 will be called rtc-au1xxx.
1372
8cc75c9a
WB
1373config RTC_DRV_BFIN
1374 tristate "Blackfin On-Chip RTC"
7f604599 1375 depends on BLACKFIN && !BF561
8cc75c9a
WB
1376 help
1377 If you say yes here you will get support for the
1378 Blackfin On-Chip Real Time Clock.
1379
1380 This driver can also be built as a module. If so, the module
1381 will be called rtc-bfin.
1382
e9f2bd81
NI
1383config RTC_DRV_RS5C313
1384 tristate "Ricoh RS5C313"
bb35fb20 1385 depends on SH_LANDISK
e9f2bd81
NI
1386 help
1387 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
1388
3afe6d04
GU
1389config RTC_DRV_GENERIC
1390 tristate "Generic RTC support"
1391 # Please consider writing a new RTC driver instead of using the generic
1392 # RTC abstraction
7a587eae 1393 depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST
9eb16864 1394 help
3afe6d04
GU
1395 Say Y or M here to enable RTC support on systems using the generic
1396 RTC abstraction. If you do not know what you are doing, you should
9eb16864
KM
1397 just say Y.
1398
dc944368 1399config RTC_DRV_PXA
832315b0
AB
1400 tristate "PXA27x/PXA3xx"
1401 depends on ARCH_PXA
1402 select RTC_DRV_SA1100
1403 help
3cdf4ad9
RH
1404 If you say Y here you will get access to the real time clock
1405 built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs
1406 consisting of an SA1100 compatible RTC and the extended PXA RTC.
dc944368 1407
98ab2c93
AB
1408 This RTC driver uses PXA RTC registers available since pxa27x
1409 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
dc944368 1410
f77fbdf9
AC
1411config RTC_DRV_VT8500
1412 tristate "VIA/WonderMedia 85xx SoC RTC"
7a587eae 1413 depends on ARCH_VT8500 || COMPILE_TEST
f77fbdf9
AC
1414 help
1415 If you say Y here you will get access to the real time clock
1416 built into your VIA VT8500 SoC or its relatives.
1417
dc944368 1418
7a138ede
DM
1419config RTC_DRV_SUN4V
1420 bool "SUN4V Hypervisor RTC"
1421 depends on SPARC64
1422 help
1423 If you say Y here you will get support for the Hypervisor
1424 based RTC on SUN4V systems.
1425
9765d2d9
CYT
1426config RTC_DRV_SUN6I
1427 tristate "Allwinner A31 RTC"
7a587eae 1428 default MACH_SUN6I || MACH_SUN8I || COMPILE_TEST
2863934e 1429 depends on ARCH_SUNXI
9765d2d9 1430 help
2863934e
AP
1431 If you say Y here you will get support for the RTC found in
1432 some Allwinner SoCs like the A31 or the A64.
9765d2d9 1433
594c6fb9
CC
1434config RTC_DRV_SUNXI
1435 tristate "Allwinner sun4i/sun7i RTC"
7a587eae 1436 depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST
594c6fb9
CC
1437 help
1438 If you say Y here you will get support for the RTC found on
1439 Allwinner A10/A20.
1440
de2cf332
DM
1441config RTC_DRV_STARFIRE
1442 bool "Starfire RTC"
1443 depends on SPARC64
1444 help
1445 If you say Y here you will get support for the RTC found on
1446 Starfire systems.
1447
0e149233
AN
1448config RTC_DRV_TX4939
1449 tristate "TX4939 SoC"
1450 depends on SOC_TX4939
1451 help
1452 Driver for the internal RTC (Realtime Clock) module found on
1453 Toshiba TX4939 SoC.
1454
defb4514
SB
1455config RTC_DRV_MV
1456 tristate "Marvell SoC RTC"
7a587eae 1457 depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST
defb4514
SB
1458 help
1459 If you say yes here you will get support for the in-chip RTC
1460 that can be found in some of Marvell's SoC devices, such as
1461 the Kirkwood 88F6281 and 88F6192.
1462
1463 This driver can also be built as a module. If so, the module
1464 will be called rtc-mv.
1465
a3a42806
GC
1466config RTC_DRV_ARMADA38X
1467 tristate "Armada 38x Marvell SoC RTC"
7a587eae 1468 depends on ARCH_MVEBU || COMPILE_TEST
a3a42806
GC
1469 help
1470 If you say yes here you will get support for the in-chip RTC
1471 that can be found in the Armada 38x Marvell's SoC device
1472
1473 This driver can also be built as a module. If so, the module
1474 will be called armada38x-rtc.
1475
98a9bb5b
HUK
1476config RTC_DRV_GEMINI
1477 tristate "Gemini SoC RTC"
1478 depends on ARCH_GEMINI || COMPILE_TEST
1479 depends on HAS_IOMEM
1480 help
1481 If you say Y here you will get support for the
1482 RTC found on Gemini SoC's.
1483
1484 This driver can also be built as a module. If so, the module
1485 will be called rtc-gemini.
1486
0b5f037a
GU
1487config RTC_DRV_PS3
1488 tristate "PS3 RTC"
1489 depends on PPC_PS3
1490 help
1491 If you say yes here you will get support for the RTC on PS3.
1492
1493 This driver can also be built as a module. If so, the module
1494 will be called rtc-ps3.
1495
aa958f57
LW
1496config RTC_DRV_COH901331
1497 tristate "ST-Ericsson COH 901 331 RTC"
7a587eae 1498 depends on ARCH_U300 || COMPILE_TEST
aa958f57
LW
1499 help
1500 If you say Y here you will get access to ST-Ericsson
1501 COH 901 331 RTC clock found in some ST-Ericsson Mobile
1502 Platforms.
1503
1504 This driver can also be built as a module. If so, the module
1505 will be called "rtc-coh901331".
1506
1507
df17f631 1508config RTC_DRV_STMP
46b21218 1509 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
7a587eae 1510 depends on ARCH_MXS || COMPILE_TEST
20d048ac 1511 select STMP_DEVICE
df17f631 1512 help
1513 If you say yes here you will get support for the onboard
46b21218 1514 STMP3xxx/i.MX23/i.MX28 RTC.
df17f631 1515
1516 This driver can also be built as a module. If so, the module
1517 will be called rtc-stmp3xxx.
1518
d3c7a3f7
DR
1519config RTC_DRV_PCAP
1520 tristate "PCAP RTC"
1521 depends on EZX_PCAP
1522 help
1523 If you say Y here you will get support for the RTC found on
1524 the PCAP2 ASIC used on some Motorola phones.
1525
1c97872b
UKK
1526config RTC_DRV_MC13XXX
1527 depends on MFD_MC13XXX
1528 tristate "Freescale MC13xxx RTC"
43299f28 1529 help
1c97872b
UKK
1530 This enables support for the RTCs found on Freescale's PMICs
1531 MC13783 and MC13892.
43299f28 1532
50aae724
AG
1533config RTC_DRV_MPC5121
1534 tristate "Freescale MPC5121 built-in RTC"
955dbea3 1535 depends on PPC_MPC512x || PPC_MPC52xx
50aae724
AG
1536 help
1537 If you say yes here you will get support for the
955dbea3 1538 built-in RTC on MPC5121 or on MPC5200.
50aae724
AG
1539
1540 This driver can also be built as a module. If so, the module
1541 will be called rtc-mpc5121.
1542
3bf0eea8
LPC
1543config RTC_DRV_JZ4740
1544 tristate "Ingenic JZ4740 SoC"
7a587eae 1545 depends on MACH_JZ4740 || COMPILE_TEST
3bf0eea8
LPC
1546 help
1547 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1548 controller.
1549
1550 This driver can also be buillt as a module. If so, the module
1551 will be called rtc-jz4740.
1552
c28b42e3
JE
1553config RTC_DRV_LPC24XX
1554 tristate "NXP RTC for LPC178x/18xx/408x/43xx"
1555 depends on ARCH_LPC18XX || COMPILE_TEST
1556 depends on OF && HAS_IOMEM
1557 help
1558 This enables support for the NXP RTC found which can be found on
1559 NXP LPC178x/18xx/408x/43xx devices.
1560
1561 If you have one of the devices above enable this driver to use
1562 the hardware RTC. This driver can also be buillt as a module. If
1563 so, the module will be called rtc-lpc24xx.
1564
9aa449be 1565config RTC_DRV_LPC32XX
7a587eae 1566 depends on ARCH_LPC32XX || COMPILE_TEST
9aa449be
KW
1567 tristate "NXP LPC32XX RTC"
1568 help
1569 This enables support for the NXP RTC in the LPC32XX
1570
1571 This driver can also be buillt as a module. If so, the module
1572 will be called rtc-lpc32xx.
1573
9a9a54ad
AG
1574config RTC_DRV_PM8XXX
1575 tristate "Qualcomm PMIC8XXX RTC"
7a587eae 1576 depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST
9a9a54ad
AG
1577 help
1578 If you say yes here you get support for the
1579 Qualcomm PMIC8XXX RTC.
1580
1581 To compile this driver as a module, choose M here: the
1582 module will be called rtc-pm8xxx.
1583
ff859ba6
AC
1584config RTC_DRV_TEGRA
1585 tristate "NVIDIA Tegra Internal RTC driver"
7a587eae 1586 depends on ARCH_TEGRA || COMPILE_TEST
ff859ba6
AC
1587 help
1588 If you say yes here you get support for the
1589 Tegra 200 series internal RTC module.
1590
1591 This drive can also be built as a module. If so, the module
1592 will be called rtc-tegra.
1593
dd196a2b
CM
1594config RTC_DRV_TILE
1595 tristate "Tilera hypervisor RTC support"
1596 depends on TILE
1597 help
1598 Enable support for the Linux driver side of the Tilera
1599 hypervisor's real-time clock interface.
1600
2809e80b
GX
1601config RTC_DRV_PUV3
1602 tristate "PKUnity v3 RTC support"
1603 depends on ARCH_PUV3
1604 help
1605 This enables support for the RTC in the PKUnity-v3 SoCs.
1606
1607 This drive can also be built as a module. If so, the module
1608 will be called rtc-puv3.
1609
b4f0b880 1610config RTC_DRV_LOONGSON1
1611 tristate "loongson1 RTC support"
30ad29bb 1612 depends on MACH_LOONGSON32
b4f0b880 1613 help
1614 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1615 counter) to be used as a RTC.
1616
1617 This driver can also be built as a module. If so, the module
1618 will be called rtc-ls1x.
1619
79811595 1620config RTC_DRV_MXC
b224b9ac
FE
1621 tristate "Freescale MXC Real Time Clock"
1622 depends on ARCH_MXC
b224b9ac
FE
1623 help
1624 If you say yes here you get support for the Freescale MXC
1625 RTC module.
1626
1627 This driver can also be built as a module, if so, the module
1628 will be called "rtc-mxc".
1629
179a502f
SG
1630config RTC_DRV_SNVS
1631 tristate "Freescale SNVS RTC support"
8a0fa184 1632 select REGMAP_MMIO
179a502f
SG
1633 depends on HAS_IOMEM
1634 depends on OF
1635 help
1636 If you say yes here you get support for the Freescale SNVS
1637 Low Power (LP) RTC module.
1638
1639 This driver can also be built as a module, if so, the module
1640 will be called "rtc-snvs".
1641
e88b815e
XD
1642config RTC_DRV_SIRFSOC
1643 tristate "SiRFSOC RTC"
1644 depends on ARCH_SIRF
1645 help
1646 Say "yes" here to support the real time clock on SiRF SOC chips.
1647 This driver can also be built as a module called rtc-sirfsoc.
1648
b5b2bdfc
LJ
1649config RTC_DRV_ST_LPC
1650 tristate "STMicroelectronics LPC RTC"
1651 depends on ARCH_STI
1652 depends on OF
1653 help
1654 Say Y here to include STMicroelectronics Low Power Controller
1655 (LPC) based RTC support.
1656
1657 To compile this driver as a module, choose M here: the
1658 module will be called rtc-st-lpc.
1659
453b4c6d
JJ
1660config RTC_DRV_MOXART
1661 tristate "MOXA ART RTC"
441fb768 1662 depends on ARCH_MOXART || COMPILE_TEST
453b4c6d
JJ
1663 help
1664 If you say yes here you get support for the MOXA ART
1665 RTC module.
1666
1667 This driver can also be built as a module. If so, the module
1668 will be called rtc-moxart
1669
fc297911
TF
1670config RTC_DRV_MT6397
1671 tristate "Mediatek Real Time Clock driver"
04d3ba70 1672 depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN)
fc297911
TF
1673 help
1674 This selects the Mediatek(R) RTC driver. RTC is part of Mediatek
1675 MT6397 PMIC. You should enable MT6397 PMIC MFD before select
1676 Mediatek(R) RTC driver.
1677
1678 If you want to use Mediatek(R) RTC interface, select Y or M here.
1679
f12d8695
LH
1680config RTC_DRV_XGENE
1681 tristate "APM X-Gene RTC"
706b632d 1682 depends on HAS_IOMEM
fdf8afa1 1683 depends on ARCH_XGENE || COMPILE_TEST
f12d8695
LH
1684 help
1685 If you say yes here you get support for the APM X-Gene SoC real time
1686 clock.
1687
1688 This driver can also be built as a module, if so, the module
1689 will be called "rtc-xgene".
1690
51aa905c
JH
1691config RTC_DRV_PIC32
1692 tristate "Microchip PIC32 RTC"
1693 depends on MACH_PIC32
1694 default y
1695 help
1696 If you say yes here you get support for the PIC32 RTC module.
1697
1698 This driver can also be built as a module. If so, the module
1699 will be called rtc-pic32
1700
62e00cb9
AH
1701comment "HID Sensor RTC drivers"
1702
1703config RTC_DRV_HID_SENSOR_TIME
1704 tristate "HID Sensor Time"
1705 depends on USB_HID
1706 select IIO
1707 select HID_SENSOR_HUB
1708 select HID_SENSOR_IIO_COMMON
1709 help
1710 Say yes here to build support for the HID Sensors of type Time.
1711 This drivers makes such sensors available as RTCs.
1712
1713 If this driver is compiled as a module, it will be named
1714 rtc-hid-sensor-time.
1715
1716
bb35fb20 1717endif # RTC_CLASS
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