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David Brownell7be2c7c2007-02-10 01:46:02 -08001#
Alessandro Zummoc58411e2006-03-27 01:16:34 -08002# RTC class/drivers configuration
3#
4
5config RTC_LIB
John Stultzb4d246b2011-04-29 15:03:11 -07006 bool
Alessandro Zummo0c86edc2006-03-27 01:16:37 -08007
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07008menuconfig RTC_CLASS
John Stultzb4d246b2011-04-29 15:03:11 -07009 bool "Real Time Clock"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080010 default n
Al Viro33694652011-08-18 20:11:59 +010011 depends on !S390 && !UML
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080012 select RTC_LIB
13 help
14 Generic RTC class support. If you say yes here, you will
15 be allowed to plug one or more RTCs to your system. You will
Adrian Bunk27ae4102006-06-30 18:18:41 +020016 probably want to enable one or more of the interfaces below.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080017
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070018if RTC_CLASS
19
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080020config RTC_HCTOSYS
David Brownell7ca1d482007-05-08 00:33:42 -070021 bool "Set system time from RTC on startup and resume"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080022 default y
23 help
David Brownell7ca1d482007-05-08 00:33:42 -070024 If you say yes here, the system time (wall clock) will be set using
25 the value read from a specified RTC device. This is useful to avoid
26 unnecessary fsck runs at boot time, and to network better.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080027
Jason Gunthorpe023f3332012-12-17 14:30:53 -070028config RTC_SYSTOHC
29 bool "Set the RTC time based on NTP synchronization"
30 default y
31 help
32 If you say yes here, the system time (wall clock) will be stored
33 in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
34 minutes if userspace reports synchronized NTP status.
35
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080036config RTC_HCTOSYS_DEVICE
David Brownell7ca1d482007-05-08 00:33:42 -070037 string "RTC used to set the system time"
Jason Gunthorpe023f3332012-12-17 14:30:53 -070038 depends on RTC_HCTOSYS = y || RTC_SYSTOHC = y
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080039 default "rtc0"
40 help
David Brownell7ca1d482007-05-08 00:33:42 -070041 The RTC device that will be used to (re)initialize the system
Alessandro Zummoae64d162009-01-06 14:42:17 -080042 clock, usually rtc0. Initialization is done when the system
43 starts up, and when it resumes from a low power state. This
David Brownell779d2082007-11-14 16:58:29 -080044 device should record time in UTC, since the kernel won't do
45 timezone correction.
David Brownell7ca1d482007-05-08 00:33:42 -070046
David Brownell55ff1ab2007-07-21 04:37:56 -070047 The driver for this RTC device must be loaded before late_initcall
48 functions run, so it must usually be statically linked.
49
David Brownell7ca1d482007-05-08 00:33:42 -070050 This clock should be battery-backed, so that it reads the correct
Alessandro Zummoae64d162009-01-06 14:42:17 -080051 time when the system boots from a power-off state. Otherwise, your
David Brownell7ca1d482007-05-08 00:33:42 -070052 system will need an external clock source (like an NTP server).
53
54 If the clock you specify here is not battery backed, it may still
55 be useful to reinitialize system time when resuming from system
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -080056 sleep states. Do not specify an RTC here unless it stays powered
David Brownell7ca1d482007-05-08 00:33:42 -070057 during all this system's supported sleep states.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080058
David Brownell9e86ecb2006-09-30 23:28:14 -070059config RTC_DEBUG
60 bool "RTC debug support"
David Brownell9e86ecb2006-09-30 23:28:14 -070061 help
62 Say yes here to enable debugging support in the RTC framework
63 and individual RTC drivers.
64
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080065comment "RTC interfaces"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080066
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080067config RTC_INTF_SYSFS
David Brownelle40659c2007-05-16 22:11:15 -070068 boolean "/sys/class/rtc/rtcN (sysfs)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070069 depends on SYSFS
Kevin Hilman8dc08392012-10-10 15:54:06 -070070 default RTC_CLASS
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080071 help
David Brownell9e86ecb2006-09-30 23:28:14 -070072 Say yes here if you want to use your RTCs using sysfs interfaces,
73 /sys/class/rtc/rtc0 through /sys/.../rtcN.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080074
Alessandro Zummoae64d162009-01-06 14:42:17 -080075 If unsure, say Y.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080076
Alessandro Zummo728a2942006-03-27 01:16:40 -080077config RTC_INTF_PROC
Kim, Milo92589c92012-10-04 17:13:45 -070078 boolean "/proc/driver/rtc (procfs for rtcN)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070079 depends on PROC_FS
Kevin Hilman8dc08392012-10-10 15:54:06 -070080 default RTC_CLASS
Alessandro Zummo728a2942006-03-27 01:16:40 -080081 help
Kim, Milo92589c92012-10-04 17:13:45 -070082 Say yes here if you want to use your system clock RTC through
83 the proc interface, /proc/driver/rtc.
84 Other RTCs will not be available through that API.
85 If there is no RTC for the system clock, then the first RTC(rtc0)
86 is used by default.
Alessandro Zummo728a2942006-03-27 01:16:40 -080087
Alessandro Zummoae64d162009-01-06 14:42:17 -080088 If unsure, say Y.
Alessandro Zummo728a2942006-03-27 01:16:40 -080089
Alessandro Zummoe8242902006-03-27 01:16:41 -080090config RTC_INTF_DEV
David Brownelle40659c2007-05-16 22:11:15 -070091 boolean "/dev/rtcN (character devices)"
Kevin Hilman8dc08392012-10-10 15:54:06 -070092 default RTC_CLASS
Alessandro Zummoe8242902006-03-27 01:16:41 -080093 help
David Brownell9e86ecb2006-09-30 23:28:14 -070094 Say yes here if you want to use your RTCs using the /dev
95 interfaces, which "udev" sets up as /dev/rtc0 through
Alessandro Zummoae64d162009-01-06 14:42:17 -080096 /dev/rtcN.
Alessandro Zummoe8242902006-03-27 01:16:41 -080097
Alessandro Zummoae64d162009-01-06 14:42:17 -080098 You may want to set up a symbolic link so one of these
99 can be accessed as /dev/rtc, which is a name
100 expected by "hwclock" and some other programs. Recent
101 versions of "udev" are known to set up the symlink for you.
102
103 If unsure, say Y.
Alessandro Zummoe8242902006-03-27 01:16:41 -0800104
John Stultz6e57b1d2011-02-11 17:45:40 -0800105config RTC_INTF_DEV_UIE_EMUL
106 bool "RTC UIE emulation on dev interface"
107 depends on RTC_INTF_DEV
108 help
109 Provides an emulation for RTC_UIE if the underlying rtc chip
110 driver does not expose RTC_UIE ioctls. Those requests generate
111 once-per-second update interrupts, used for synchronization.
112
113 The emulation code will read the time from the hardware
114 clock several times per second, please enable this option
115 only if you know that you really need it.
116
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700117config RTC_DRV_TEST
118 tristate "Test driver/device"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700119 help
120 If you say yes here you get support for the
121 RTC test driver. It's a software RTC which can be
122 used to test the RTC subsystem APIs. It gets
123 the time from the system clock.
124 You want this driver only if you are doing development
125 on the RTC subsystem. Please read the source code
126 for further details.
127
128 This driver can also be built as a module. If so, the module
129 will be called rtc-test.
130
131comment "I2C RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700132 depends on I2C
133
134if I2C
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700135
Haojian Zhuang008b3042011-05-06 17:21:20 +0800136config RTC_DRV_88PM860X
137 tristate "Marvell 88PM860x"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700138 depends on I2C && MFD_88PM860X
Haojian Zhuang008b3042011-05-06 17:21:20 +0800139 help
140 If you say yes here you get support for RTC function in Marvell
141 88PM860x chips.
142
143 This driver can also be built as a module. If so, the module
144 will be called rtc-88pm860x.
145
Qiao Zhou2985c292012-07-09 14:37:34 +0800146config RTC_DRV_88PM80X
147 tristate "Marvell 88PM80x"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700148 depends on I2C && MFD_88PM800
Qiao Zhou2985c292012-07-09 14:37:34 +0800149 help
150 If you say yes here you get support for RTC function in Marvell
151 88PM80x chips.
152
153 This driver can also be built as a module. If so, the module
154 will be called rtc-88pm80x.
155
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700156config RTC_DRV_DS1307
Matthias Fuchsa2166852009-03-31 15:24:58 -0700157 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700158 help
159 If you say yes here you get support for various compatible RTC
Alessandro Zummoae64d162009-01-06 14:42:17 -0800160 chips (often with battery backup) connected with I2C. This driver
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700161 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
Matthias Fuchsa2166852009-03-31 15:24:58 -0700162 EPSON RX-8025 and probably other chips. In some cases the RTC
163 must already have been initialized (by manufacturing or a
164 bootloader).
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700165
166 The first seven registers on these chips hold an RTC, and other
167 registers may add features such as NVRAM, a trickle charger for
Alessandro Zummoae64d162009-01-06 14:42:17 -0800168 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
David Brownell682d73f2007-11-14 16:58:32 -0800169 sysfs, but other chip features may not be available.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700170
171 This driver can also be built as a module. If so, the module
172 will be called rtc-ds1307.
173
Scott Woodbf4994d2007-10-16 01:28:19 -0700174config RTC_DRV_DS1374
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800175 tristate "Dallas/Maxim DS1374"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700176 depends on I2C
Scott Woodbf4994d2007-10-16 01:28:19 -0700177 help
178 If you say yes here you get support for Dallas Semiconductor
Alessandro Zummoae64d162009-01-06 14:42:17 -0800179 DS1374 real-time clock chips. If an interrupt is associated
Scott Woodbf4994d2007-10-16 01:28:19 -0700180 with the device, the alarm functionality is supported.
181
Alessandro Zummoae64d162009-01-06 14:42:17 -0800182 This driver can also be built as a module. If so, the module
Scott Woodbf4994d2007-10-16 01:28:19 -0700183 will be called rtc-ds1374.
184
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700185config RTC_DRV_DS1672
186 tristate "Dallas/Maxim DS1672"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700187 help
188 If you say yes here you get support for the
189 Dallas/Maxim DS1672 timekeeping chip.
190
191 This driver can also be built as a module. If so, the module
192 will be called rtc-ds1672.
193
Roy Zangc03675f2010-08-10 18:02:20 -0700194config RTC_DRV_DS3232
195 tristate "Dallas/Maxim DS3232"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700196 depends on I2C
Roy Zangc03675f2010-08-10 18:02:20 -0700197 help
198 If you say yes here you get support for Dallas Semiconductor
Lan Chunhe-B25806f46418c2010-10-27 15:33:12 -0700199 DS3232 real-time clock chips. If an interrupt is associated
200 with the device, the alarm functionality is supported.
Roy Zangc03675f2010-08-10 18:02:20 -0700201
202 This driver can also be built as a module. If so, the module
203 will be called rtc-ds3232.
204
Kim, Milo38ae1762013-02-21 16:44:32 -0800205config RTC_DRV_LP8788
206 tristate "TI LP8788 RTC driver"
207 depends on MFD_LP8788
208 help
209 Say Y to enable support for the LP8788 RTC/ALARM driver.
210
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700211config RTC_DRV_MAX6900
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800212 tristate "Maxim MAX6900"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700213 help
214 If you say yes here you will get support for the
215 Maxim MAX6900 I2C RTC chip.
216
217 This driver can also be built as a module. If so, the module
218 will be called rtc-max6900.
219
Stephen Warren94c01ab2012-10-04 17:13:56 -0700220config RTC_DRV_MAX8907
221 tristate "Maxim MAX8907"
222 depends on MFD_MAX8907
223 help
224 If you say yes here you will get support for the
225 RTC of Maxim MAX8907 PMIC.
226
227 This driver can also be built as a module. If so, the module
228 will be called rtc-max8907.
229
Haojian Zhuanga39069f2010-01-25 06:30:29 -0500230config RTC_DRV_MAX8925
231 tristate "Maxim MAX8925"
232 depends on MFD_MAX8925
233 help
234 If you say yes here you will get support for the
235 RTC of Maxim MAX8925 PMIC.
236
237 This driver can also be built as a module. If so, the module
238 will be called rtc-max8925.
239
Joonyoung Shim9b16c0a2010-08-06 11:28:08 +0900240config RTC_DRV_MAX8998
241 tristate "Maxim MAX8998"
242 depends on MFD_MAX8998
243 help
244 If you say yes here you will get support for the
245 RTC of Maxim MAX8998 PMIC.
246
247 This driver can also be built as a module. If so, the module
248 will be called rtc-max8998.
249
Jonghwa Lee5e0b2702013-02-21 16:45:07 -0800250config RTC_DRV_MAX8997
251 tristate "Maxim MAX8997"
252 depends on MFD_MAX8997
253 help
254 If you say yes here you will get support for the
255 RTC of Maxim MAX8997 PMIC.
256
257 This driver can also be built as a module. If so, the module
258 will be called rtc-max8997.
259
Jonghwa Leefca1dd02013-02-21 16:44:26 -0800260config RTC_DRV_MAX77686
261 tristate "Maxim MAX77686"
262 depends on MFD_MAX77686
263 help
264 If you say yes here you will get support for the
265 RTC of Maxim MAX77686 PMIC.
266
267 This driver can also be built as a module. If so, the module
268 will be called rtc-max77686.
269
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700270config RTC_DRV_RS5C372
Paul Mundt5d4529b2008-10-21 20:12:59 +0900271 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700272 help
273 If you say yes here you get support for the
Paul Mundt5d4529b2008-10-21 20:12:59 +0900274 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700275
276 This driver can also be built as a module. If so, the module
277 will be called rtc-rs5c372.
278
279config RTC_DRV_ISL1208
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800280 tristate "Intersil ISL1208"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700281 help
282 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800283 Intersil ISL1208 RTC chip.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700284
285 This driver can also be built as a module. If so, the module
286 will be called rtc-isl1208.
287
Roman Fietzed6c74282010-08-10 18:02:14 -0700288config RTC_DRV_ISL12022
289 tristate "Intersil ISL12022"
290 help
291 If you say yes here you get support for the
292 Intersil ISL12022 RTC chip.
293
294 This driver can also be built as a module. If so, the module
295 will be called rtc-isl12022.
296
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700297config RTC_DRV_X1205
298 tristate "Xicor/Intersil X1205"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700299 help
300 If you say yes here you get support for the
301 Xicor/Intersil X1205 RTC chip.
302
303 This driver can also be built as a module. If so, the module
304 will be called rtc-x1205.
305
Laxman Dewangan0101e532013-01-03 16:17:00 +0530306config RTC_DRV_PALMAS
307 tristate "TI Palmas RTC driver"
308 depends on MFD_PALMAS
309 help
310 If you say yes here you get support for the RTC of TI PALMA series PMIC
311 chips.
312
313 This driver can also be built as a module. If so, the module
314 will be called rtc-palma.
315
Renaud Cerrato18cb6362013-07-03 15:08:01 -0700316config RTC_DRV_PCF2127
317 tristate "NXP PCF2127"
318 help
319 If you say yes here you get support for the NXP PCF2127/29 RTC
320 chips.
321
322 This driver can also be built as a module. If so, the module
323 will be called rtc-pcf2127.
324
Thierry Redingf803f0d2012-12-17 16:02:44 -0800325config RTC_DRV_PCF8523
326 tristate "NXP PCF8523"
327 help
328 If you say yes here you get support for the NXP PCF8523 RTC
329 chips.
330
331 This driver can also be built as a module. If so, the module
332 will be called rtc-pcf8523.
333
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700334config RTC_DRV_PCF8563
335 tristate "Philips PCF8563/Epson RTC8564"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700336 help
337 If you say yes here you get support for the
338 Philips PCF8563 RTC chip. The Epson RTC8564
339 should work as well.
340
341 This driver can also be built as a module. If so, the module
342 will be called rtc-pcf8563.
343
344config RTC_DRV_PCF8583
345 tristate "Philips PCF8583"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700346 help
347 If you say yes here you get support for the Philips PCF8583
348 RTC chip found on Acorn RiscPCs. This driver supports the
349 platform specific method of retrieving the current year from
350 the RTC's SRAM. It will work on other platforms with the same
351 chip, but the year will probably have to be tweaked.
352
353 This driver can also be built as a module. If so, the module
354 will be called rtc-pcf8583.
355
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700356config RTC_DRV_M41T80
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700357 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87"
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700358 help
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700359 If you say Y here you will get support for the ST M41T60
360 and M41T80 RTC chips series. Currently, the following chips are
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700361 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700362 M41ST85, and M41ST87.
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700363
364 This driver can also be built as a module. If so, the module
365 will be called rtc-m41t80.
366
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700367config RTC_DRV_M41T80_WDT
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700368 bool "ST M41T65/M41T80 series RTC watchdog timer"
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700369 depends on RTC_DRV_M41T80
370 help
371 If you say Y here you will get support for the
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700372 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700373
Piotr Ziecik1ce7c832009-12-15 16:46:12 -0800374config RTC_DRV_BQ32K
375 tristate "TI BQ32000"
376 help
377 If you say Y here you will get support for the TI
378 BQ32000 I2C RTC chip.
379
380 This driver can also be built as a module. If so, the module
381 will be called rtc-bq32k.
382
David Brownellafd8d0f2009-02-04 15:12:01 -0800383config RTC_DRV_DM355EVM
384 tristate "TI DaVinci DM355 EVM RTC"
385 depends on MFD_DM355EVM_MSP
386 help
387 Supports the RTC firmware in the MSP430 on the DM355 EVM.
388
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700389config RTC_DRV_TWL92330
390 boolean "TI TWL92330/Menelaus"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700391 depends on MENELAUS
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700392 help
393 If you say yes here you get support for the RTC on the
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200394 TWL92330 "Menelaus" power management chip, used with OMAP2
Alessandro Zummoae64d162009-01-06 14:42:17 -0800395 platforms. The support is integrated with the rest of
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700396 the Menelaus driver; it's not separate module.
397
David Brownellf96411a2008-10-20 23:50:05 +0200398config RTC_DRV_TWL4030
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100399 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700400 depends on TWL4030_CORE
David Brownellf96411a2008-10-20 23:50:05 +0200401 help
402 If you say yes here you get support for the RTC on the
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100403 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
David Brownellf96411a2008-10-20 23:50:05 +0200404
405 This driver can also be built as a module. If so, the module
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100406 will be called rtc-twl.
David Brownellf96411a2008-10-20 23:50:05 +0200407
Laxman Dewangandc59ed32013-01-04 15:35:44 -0800408config RTC_DRV_TPS6586X
409 tristate "TI TPS6586X RTC driver"
410 depends on MFD_TPS6586X
411 help
Masanari Iidaa895d572013-04-09 02:06:50 +0900412 TI Power Management IC TPS6586X supports RTC functionality
Laxman Dewangandc59ed32013-01-04 15:35:44 -0800413 along with alarm. This driver supports the RTC driver for
414 the TPS6586X RTC module.
415
Venu Byravarasu0e783982012-10-04 17:13:55 -0700416config RTC_DRV_TPS65910
417 tristate "TI TPS65910 RTC driver"
418 depends on RTC_CLASS && MFD_TPS65910
419 help
420 If you say yes here you get support for the RTC on the
421 TPS65910 chips.
422
423 This driver can also be built as a module. If so, the module
424 will be called rtc-tps65910.
425
Laxman Dewangan36d61822013-02-21 16:44:34 -0800426config RTC_DRV_TPS80031
427 tristate "TI TPS80031/TPS80032 RTC driver"
428 depends on MFD_TPS80031
429 help
Masanari Iidaa895d572013-04-09 02:06:50 +0900430 TI Power Management IC TPS80031 supports RTC functionality
Laxman Dewangan36d61822013-02-21 16:44:34 -0800431 along with alarm. This driver supports the RTC driver for
432 the TPS80031 RTC module.
433
Venu Byravarasu90829c02012-10-04 17:14:04 -0700434config RTC_DRV_RC5T583
435 tristate "RICOH 5T583 RTC driver"
436 depends on MFD_RC5T583
437 help
438 If you say yes here you get support for the RTC on the
439 RICOH 5T583 chips.
440
441 This driver can also be built as a module. If so, the module
442 will be called rtc-rc5t583.
443
Byron Bradleyc46288b2008-03-04 14:28:25 -0800444config RTC_DRV_S35390A
445 tristate "Seiko Instruments S-35390A"
Randy Dunlapd4795402008-04-10 21:29:18 -0700446 select BITREVERSE
Byron Bradleyc46288b2008-03-04 14:28:25 -0800447 help
448 If you say yes here you will get support for the Seiko
449 Instruments S-35390A.
450
451 This driver can also be built as a module. If so the module
452 will be called rtc-s35390a.
453
Sergey Lapinc6d8f402008-06-12 15:21:55 -0700454config RTC_DRV_FM3130
455 tristate "Ramtron FM3130"
456 help
457 If you say Y here you will get support for the
458 Ramtron FM3130 RTC chips.
459 Ramtron FM3130 is a chip with two separate devices inside,
460 RTC clock and FRAM. This driver provides only RTC functionality.
461
462 This driver can also be built as a module. If so the module
463 will be called rtc-fm3130.
464
Martyn Welcha7fa9852008-11-12 13:27:06 -0800465config RTC_DRV_RX8581
466 tristate "Epson RX-8581"
467 help
468 If you say yes here you will get support for the Epson RX-8581.
469
470 This driver can also be built as a module. If so the module
471 will be called rtc-rx8581.
472
Wolfgang Grandegger3c2b9072009-06-17 16:26:11 -0700473config RTC_DRV_RX8025
474 tristate "Epson RX-8025SA/NB"
475 help
476 If you say yes here you get support for the Epson
477 RX-8025SA/NB RTC chips.
478
479 This driver can also be built as a module. If so, the module
480 will be called rtc-rx8025.
481
Mike Rapoportae3551f2011-05-26 16:25:04 -0700482config RTC_DRV_EM3027
483 tristate "EM Microelectronic EM3027"
484 help
485 If you say yes here you get support for the EM
486 Microelectronic EM3027 RTC chips.
487
488 This driver can also be built as a module. If so, the module
489 will be called rtc-em3027.
490
Heiko Schocher52365232011-05-26 16:25:05 -0700491config RTC_DRV_RV3029C2
492 tristate "Micro Crystal RTC"
493 help
494 If you say yes here you get support for the Micro Crystal
495 RV3029-C2 RTC chips.
496
497 This driver can also be built as a module. If so, the module
498 will be called rtc-rv3029c2.
499
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700500endif # I2C
501
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700502comment "SPI RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700503
504if SPI_MASTER
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700505
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700506config RTC_DRV_M41T93
507 tristate "ST M41T93"
508 help
509 If you say yes here you will get support for the
510 ST M41T93 SPI RTC chip.
511
512 This driver can also be built as a module. If so, the module
513 will be called rtc-m41t93.
514
Kim B. Heino8fc2c762008-07-23 21:30:34 -0700515config RTC_DRV_M41T94
516 tristate "ST M41T94"
517 help
518 If you say yes here you will get support for the
519 ST M41T94 SPI RTC chip.
520
521 This driver can also be built as a module. If so, the module
522 will be called rtc-m41t94.
523
David Brownell53e84b62008-07-23 21:30:36 -0700524config RTC_DRV_DS1305
525 tristate "Dallas/Maxim DS1305/DS1306"
526 help
527 Select this driver to get support for the Dallas/Maxim DS1305
Alessandro Zummoae64d162009-01-06 14:42:17 -0800528 and DS1306 real time clock chips. These support a trickle
David Brownell53e84b62008-07-23 21:30:36 -0700529 charger, alarms, and NVRAM in addition to the clock.
530
531 This driver can also be built as a module. If so, the module
532 will be called rtc-ds1305.
533
Mark Jackson06de1802008-11-12 13:27:07 -0800534config RTC_DRV_DS1390
535 tristate "Dallas/Maxim DS1390/93/94"
536 help
Alessandro Zummo7b9b2ef2009-01-06 14:42:16 -0800537 If you say yes here you get support for the
538 Dallas/Maxim DS1390/93/94 chips.
Mark Jackson06de1802008-11-12 13:27:07 -0800539
540 This driver only supports the RTC feature, and not other chip
541 features such as alarms and trickle charging.
542
543 This driver can also be built as a module. If so, the module
544 will be called rtc-ds1390.
545
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800546config RTC_DRV_MAX6902
547 tristate "Maxim MAX6902"
548 help
549 If you say yes here you will get support for the
550 Maxim MAX6902 SPI RTC chip.
551
552 This driver can also be built as a module. If so, the module
553 will be called rtc-max6902.
554
Magnus Damm2805b962008-02-06 01:38:53 -0800555config RTC_DRV_R9701
556 tristate "Epson RTC-9701JE"
557 help
558 If you say yes here you will get support for the
559 Epson RTC-9701JE SPI RTC chip.
560
561 This driver can also be built as a module. If so, the module
562 will be called rtc-r9701.
563
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700564config RTC_DRV_RS5C348
565 tristate "Ricoh RS5C348A/B"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700566 help
567 If you say yes here you get support for the
568 Ricoh RS5C348A and RS5C348B RTC chips.
569
570 This driver can also be built as a module. If so, the module
571 will be called rtc-rs5c348.
572
Dennis Aberilla2f9b75e2008-10-15 22:02:57 -0700573config RTC_DRV_DS3234
574 tristate "Maxim/Dallas DS3234"
575 help
576 If you say yes here you get support for the
577 Maxim/Dallas DS3234 SPI RTC chip.
578
579 This driver can also be built as a module. If so, the module
580 will be called rtc-ds3234.
581
Chris Verges7f3923a2009-09-22 16:46:20 -0700582config RTC_DRV_PCF2123
583 tristate "NXP PCF2123"
584 help
585 If you say yes here you get support for the NXP PCF2123
586 RTC chip.
587
588 This driver can also be built as a module. If so, the module
589 will be called rtc-pcf2123.
590
Torben Hohncce2da92013-02-21 16:44:40 -0800591config RTC_DRV_RX4581
592 tristate "Epson RX-4581"
593 help
594 If you say yes here you will get support for the Epson RX-4581.
595
596 This driver can also be built as a module. If so the module
597 will be called rtc-rx4581.
598
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700599endif # SPI_MASTER
600
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700601comment "Platform RTC drivers"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800602
David Brownell7be2c7c2007-02-10 01:46:02 -0800603# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
604# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
605# global rtc_lock ... it's not yet just another platform_device.
606
607config RTC_DRV_CMOS
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700608 tristate "PC-style 'CMOS'"
Andrew Morton5ec87702008-09-22 21:40:04 -0700609 depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
David Brownellc7500902008-04-28 02:11:52 -0700610 default y if X86
David Brownell7be2c7c2007-02-10 01:46:02 -0800611 help
612 Say "yes" here to get direct support for the real time clock
613 found in every PC or ACPI-based system, and some other boards.
614 Specifically the original MC146818, compatibles like those in
615 PC south bridges, the DS12887 or M48T86, some multifunction
616 or LPC bus chips, and so on.
617
618 Your system will need to define the platform device used by
Alessandro Zummoae64d162009-01-06 14:42:17 -0800619 this driver, otherwise it won't be accessible. This means
David Brownell7be2c7c2007-02-10 01:46:02 -0800620 you can safely enable this driver if you don't know whether
621 or not your board has this kind of hardware.
622
623 This driver can also be built as a module. If so, the module
624 will be called rtc-cmos.
625
Feng Tang0146f262010-11-10 17:29:17 +0000626config RTC_DRV_VRTC
Alan Cox933b9462011-12-17 17:43:40 +0000627 tristate "Virtual RTC for Intel MID platforms"
628 depends on X86_INTEL_MID
629 default y if X86_INTEL_MID
Feng Tang0146f262010-11-10 17:29:17 +0000630
631 help
632 Say "yes" here to get direct support for the real time clock
633 found on Moorestown platforms. The VRTC is a emulated RTC that
634 derives its clock source from a real RTC in the PMIC. The MC146818
635 style programming interface is mostly conserved, but any
636 updates are done via IPC calls to the system controller FW.
637
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700638config RTC_DRV_DS1216
639 tristate "Dallas DS1216"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700640 depends on SNI_RM
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700641 help
642 If you say yes here you get support for the Dallas DS1216 RTC chips.
643
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200644config RTC_DRV_DS1286
645 tristate "Dallas DS1286"
646 help
647 If you say yes here you get support for the Dallas DS1286 RTC chips.
648
Paul Mundt739d3402008-02-06 01:38:44 -0800649config RTC_DRV_DS1302
650 tristate "Dallas DS1302"
651 depends on SH_SECUREEDGE5410
652 help
653 If you say yes here you get support for the Dallas DS1302 RTC chips.
654
Andrew Sharp8f267952008-02-06 01:38:46 -0800655config RTC_DRV_DS1511
656 tristate "Dallas DS1511"
Andrew Sharp8f267952008-02-06 01:38:46 -0800657 help
658 If you say yes here you get support for the
659 Dallas DS1511 timekeeping/watchdog chip.
660
661 This driver can also be built as a module. If so, the module
662 will be called rtc-ds1511.
663
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700664config RTC_DRV_DS1553
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800665 tristate "Maxim/Dallas DS1553"
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700666 help
667 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800668 Maxim/Dallas DS1553 timekeeping chip.
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700669
670 This driver can also be built as a module. If so, the module
671 will be called rtc-ds1553.
672
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800673config RTC_DRV_DS1742
674 tristate "Maxim/Dallas DS1742/1743"
675 help
676 If you say yes here you get support for the
677 Maxim/Dallas DS1742/1743 timekeeping chip.
678
679 This driver can also be built as a module. If so, the module
680 will be called rtc-ds1742.
681
Ashish Jangamfef931f2012-03-23 15:02:36 -0700682config RTC_DRV_DA9052
683 tristate "Dialog DA9052/DA9053 RTC"
684 depends on PMIC_DA9052
685 help
686 Say y here to support the RTC driver for Dialog Semiconductor
687 DA9052-BC and DA9053-AA/Bx PMICs.
688
Ashish Jangam6920d992012-12-17 16:02:53 -0800689config RTC_DRV_DA9055
690 tristate "Dialog Semiconductor DA9055 RTC"
691 depends on MFD_DA9055
692 help
693 If you say yes here you will get support for the
694 RTC of the Dialog DA9055 PMIC.
695
696 This driver can also be built as a module. If so, the module
697 will be called rtc-da9055
698
dann frazier5e3fd9e2009-03-31 15:24:48 -0700699config RTC_DRV_EFI
700 tristate "EFI RTC"
701 depends on IA64
702 help
703 If you say yes here you will get support for the EFI
704 Real Time Clock.
705
706 This driver can also be built as a module. If so, the module
707 will be called rtc-efi.
708
Thomas Hommel02964112007-07-21 04:37:58 -0700709config RTC_DRV_STK17TA8
710 tristate "Simtek STK17TA8"
Thomas Hommel02964112007-07-21 04:37:58 -0700711 help
712 If you say yes here you get support for the
713 Simtek STK17TA8 timekeeping chip.
714
715 This driver can also be built as a module. If so, the module
716 will be called rtc-stk17ta8.
717
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700718config RTC_DRV_M48T86
719 tristate "ST M48T86/Dallas DS12887"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700720 help
721 If you say Y here you will get support for the
722 ST M48T86 and Dallas DS12887 RTC chips.
723
724 This driver can also be built as a module. If so, the module
725 will be called rtc-m48t86.
726
Thomas Bogendoerferd1dbd82e2008-10-14 17:17:32 +0200727config RTC_DRV_M48T35
728 tristate "ST M48T35"
729 help
730 If you say Y here you will get support for the
731 ST M48T35 RTC chip.
732
733 This driver can also be built as a module, if so, the module
734 will be called "rtc-m48t35".
735
Mark Zhan2e774c72007-07-17 04:05:05 -0700736config RTC_DRV_M48T59
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700737 tristate "ST M48T59/M48T08/M48T02"
Mark Zhan2e774c72007-07-17 04:05:05 -0700738 help
739 If you say Y here you will get support for the
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700740 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
741
742 These chips are usually found in Sun SPARC and UltraSPARC
743 workstations.
Mark Zhan2e774c72007-07-17 04:05:05 -0700744
745 This driver can also be built as a module, if so, the module
746 will be called "rtc-m48t59".
747
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +0100748config RTC_DRV_MSM6242
749 tristate "Oki MSM6242"
750 help
751 If you say yes here you get support for the Oki MSM6242
752 timekeeping chip. It is used in some Amiga models (e.g. A2000).
753
754 This driver can also be built as a module. If so, the module
755 will be called rtc-msm6242.
756
David S. Millercca4c232008-08-29 01:29:53 -0700757config RTC_DRV_BQ4802
758 tristate "TI BQ4802"
759 help
760 If you say Y here you will get support for the TI
761 BQ4802 RTC chip.
762
763 This driver can also be built as a module. If so, the module
764 will be called rtc-bq4802.
765
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +0100766config RTC_DRV_RP5C01
767 tristate "Ricoh RP5C01"
768 help
769 If you say yes here you get support for the Ricoh RP5C01
770 timekeeping chip. It is used in some Amiga models (e.g. A3000
771 and A4000).
772
773 This driver can also be built as a module. If so, the module
774 will be called rtc-rp5c01.
775
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700776config RTC_DRV_V3020
777 tristate "EM Microelectronic V3020"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700778 help
779 If you say yes here you will get support for the
780 EM Microelectronic v3020 RTC chip.
781
782 This driver can also be built as a module. If so, the module
783 will be called rtc-v3020.
784
Sven Schnelle7418a112012-10-04 17:13:47 -0700785config RTC_DRV_DS2404
786 tristate "Dallas DS2404"
787 help
788 If you say yes here you get support for the
789 Dallas DS2404 RTC chip.
790
791 This driver can also be built as a module. If so, the module
792 will be called rtc-ds2404.
793
Mark Brown35c86bf2009-08-27 19:59:05 +0200794config RTC_DRV_WM831X
795 tristate "Wolfson Microelectronics WM831x RTC"
796 depends on MFD_WM831X
797 help
798 If you say yes here you will get support for the RTC subsystem
799 of the Wolfson Microelectronics WM831X series PMICs.
800
801 This driver can also be built as a module. If so, the module
802 will be called "rtc-wm831x".
803
Mark Brown077eaf52008-11-12 13:27:04 -0800804config RTC_DRV_WM8350
805 tristate "Wolfson Microelectronics WM8350 RTC"
806 depends on MFD_WM8350
807 help
808 If you say yes here you will get support for the RTC subsystem
809 of the Wolfson Microelectronics WM8350.
810
811 This driver can also be built as a module. If so, the module
812 will be called "rtc-wm8350".
813
Rajeev Kumar0942a712011-05-26 16:25:09 -0700814config RTC_DRV_SPEAR
815 tristate "SPEAR ST RTC"
816 depends on PLAT_SPEAR
817 default y
818 help
819 If you say Y here you will get support for the RTC found on
820 spear
821
Balaji Raoeae854b2009-01-09 01:50:51 +0100822config RTC_DRV_PCF50633
823 depends on MFD_PCF50633
824 tristate "NXP PCF50633 RTC"
825 help
826 If you say yes here you get support for the RTC subsystem of the
827 NXP PCF50633 used in embedded systems.
828
Linus Walleijbd207cf2009-08-30 23:49:04 +0200829config RTC_DRV_AB3100
830 tristate "ST-Ericsson AB3100 RTC"
831 depends on AB3100_CORE
832 default y if AB3100_CORE
833 help
834 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
835 support. This chip contains a battery- and capacitor-backed RTC.
836
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700837config RTC_DRV_AB8500
838 tristate "ST-Ericsson AB8500 RTC"
839 depends on AB8500_CORE
Ulf Hansson651fb482012-10-04 17:14:32 -0700840 select RTC_INTF_DEV
Ramesh Chandrasekarandc43d4a2012-07-30 14:41:41 -0700841 select RTC_INTF_DEV_UIE_EMUL
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700842 help
843 Select this to enable the ST-Ericsson AB8500 power management IC RTC
844 support. This chip contains a battery- and capacitor-backed RTC.
845
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800846config RTC_DRV_NUC900
847 tristate "NUC910/NUC920 RTC driver"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700848 depends on ARCH_W90X900
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800849 help
850 If you say yes here you get support for the RTC subsystem of the
851 NUC910/NUC920 used in embedded systems.
Linus Walleijbd207cf2009-08-30 23:49:04 +0200852
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700853comment "on-CPU RTC drivers"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700854
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -0600855config RTC_DRV_DAVINCI
856 tristate "TI DaVinci RTC"
857 depends on ARCH_DAVINCI_DM365
858 help
859 If you say yes here you get support for the RTC on the
860 DaVinci platforms (DM365).
861
862 This driver can also be built as a module. If so, the module
863 will be called rtc-davinci.
864
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700865config RTC_DRV_IMXDI
866 tristate "Freescale IMX DryIce Real Time Clock"
Roland Stiggeef216ad2012-12-17 16:02:22 -0800867 depends on ARCH_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700868 help
869 Support for Freescale IMX DryIce RTC
870
871 This driver can also be built as a module, if so, the module
872 will be called "rtc-imxdi".
873
David Brownelldb68b182006-12-06 20:38:36 -0800874config RTC_DRV_OMAP
875 tristate "TI OMAP1"
Afzal Mohammed427af9a2012-12-17 16:02:17 -0800876 depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX || SOC_AM33XX
David Brownelldb68b182006-12-06 20:38:36 -0800877 help
Afzal Mohammed427af9a2012-12-17 16:02:17 -0800878 Say "yes" here to support the on chip real time clock
879 present on TI OMAP1, AM33xx and DA8xx/OMAP-L13x.
880
881 This driver can also be built as a module, if so, module
882 will be called rtc-omap.
David Brownelldb68b182006-12-06 20:38:36 -0800883
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530884config HAVE_S3C_RTC
885 bool
886 help
887 This will include RTC support for Samsung SoCs. If
888 you want to include RTC support for any machine, kindly
889 select this in the respective mach-XXXX/Kconfig file.
890
Ben Dooks1add6782006-07-01 04:36:26 -0700891config RTC_DRV_S3C
892 tristate "Samsung S3C series SoC RTC"
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900893 depends on ARCH_S3C64XX || HAVE_S3C_RTC
Ben Dooks1add6782006-07-01 04:36:26 -0700894 help
895 RTC (Realtime Clock) driver for the clock inbuilt into the
896 Samsung S3C24XX series of SoCs. This can provide periodic
897 interrupt rates from 1Hz to 64Hz for user programs, and
898 wakeup from Alarm.
899
900 The driver currently supports the common features on all the
901 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
902 and S3C2442.
903
904 This driver can also be build as a module. If so, the module
905 will be called rtc-s3c.
906
Alessandro Zummofd507e22006-03-27 01:16:45 -0800907config RTC_DRV_EP93XX
908 tristate "Cirrus Logic EP93XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700909 depends on ARCH_EP93XX
Alessandro Zummofd507e22006-03-27 01:16:45 -0800910 help
911 If you say yes here you get support for the
912 RTC embedded in the Cirrus Logic EP93XX processors.
913
914 This driver can also be built as a module. If so, the module
915 will be called rtc-ep93xx.
916
Richard Purdiee842f1c2006-03-27 01:16:46 -0800917config RTC_DRV_SA1100
Haojian Zhuang3888c092012-02-21 11:51:13 +0800918 tristate "SA11x0/PXA2xx/PXA910"
919 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
Richard Purdiee842f1c2006-03-27 01:16:46 -0800920 help
921 If you say Y here you will get access to the real time clock
922 built into your SA11x0 or PXA2xx CPU.
923
924 To compile this driver as a module, choose M here: the
925 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -0800926
Paul Mundt317a6102006-09-27 17:13:19 +0900927config RTC_DRV_SH
928 tristate "SuperH On-Chip RTC"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700929 depends on SUPERH && HAVE_CLK
Paul Mundt317a6102006-09-27 17:13:19 +0900930 help
931 Say Y here to enable support for the on-chip RTC found in
932 most SuperH processors.
933
934 To compile this driver as a module, choose M here: the
935 module will be called rtc-sh.
936
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700937config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700938 tristate "NEC VR41XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700939 depends on CPU_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700940 help
941 If you say Y here you will get access to the real time clock
942 built into your NEC VR41XX CPU.
943
944 To compile this driver as a module, choose M here: the
945 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700946
Russell Kinga1909012008-04-20 12:08:36 +0100947config RTC_DRV_PL030
948 tristate "ARM AMBA PL030 RTC"
949 depends on ARM_AMBA
950 help
951 If you say Y here you will get access to ARM AMBA
952 PrimeCell PL030 RTC found on certain ARM SOCs.
953
954 To compile this driver as a module, choose M here: the
955 module will be called rtc-pl030.
956
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700957config RTC_DRV_PL031
958 tristate "ARM AMBA PL031 RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700959 depends on ARM_AMBA
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700960 help
961 If you say Y here you will get access to ARM AMBA
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700962 PrimeCell PL031 RTC found on certain ARM SOCs.
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700963
964 To compile this driver as a module, choose M here: the
965 module will be called rtc-pl031.
966
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700967config RTC_DRV_AT32AP700X
968 tristate "AT32AP700X series RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700969 depends on PLATFORM_AT32AP
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700970 help
971 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
972 AT32AP700x family processors.
973
Andrew Victor7fc39f62006-12-10 02:19:03 -0800974config RTC_DRV_AT91RM9200
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200975 tristate "AT91RM9200 or some AT91SAM9 RTC"
Nicolas Ferre938f9702012-03-15 14:38:09 +0100976 depends on ARCH_AT91
Andrew Victor788b1fc2006-06-25 05:48:27 -0700977 help
David Brownell4cdf8542008-02-06 01:38:59 -0800978 Driver for the internal RTC (Realtime Clock) module found on
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200979 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
David Brownell4cdf8542008-02-06 01:38:59 -0800980 this is powered by the backup power supply.
981
982config RTC_DRV_AT91SAM9
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200983 tristate "AT91SAM9x/AT91CAP9 RTT as RTC"
David Brownell4cdf8542008-02-06 01:38:59 -0800984 depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
985 help
Stelian Pop6b71dbf2008-04-05 21:16:15 +0100986 RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
987 (Real Time Timer). These timers are powered by the backup power
988 supply (such as a small coin cell battery), but do not need to
989 be used as RTCs.
David Brownell4cdf8542008-02-06 01:38:59 -0800990
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200991 (On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
992 dedicated RTC module and leave the RTT available for other uses.)
David Brownell4cdf8542008-02-06 01:38:59 -0800993
994config RTC_DRV_AT91SAM9_RTT
995 int
996 range 0 1
997 default 0
998 prompt "RTT module Number" if ARCH_AT91SAM9263
999 depends on RTC_DRV_AT91SAM9
1000 help
Alessandro Zummoae64d162009-01-06 14:42:17 -08001001 More than one RTT module is available. You can choose which
1002 one will be used as an RTC. The default of zero is normally
David Brownell4cdf8542008-02-06 01:38:59 -08001003 OK to use, though some systems use that for non-RTC purposes.
1004
1005config RTC_DRV_AT91SAM9_GPBR
1006 int
1007 range 0 3 if !ARCH_AT91SAM9263
1008 range 0 15 if ARCH_AT91SAM9263
1009 default 0
1010 prompt "Backup Register Number"
1011 depends on RTC_DRV_AT91SAM9
1012 help
1013 The RTC driver needs to use one of the General Purpose Backup
Alessandro Zummoae64d162009-01-06 14:42:17 -08001014 Registers (GPBRs) as well as the RTT. You can choose which one
1015 will be used. The default of zero is normally OK to use, but
David Brownell4cdf8542008-02-06 01:38:59 -08001016 on some systems other software needs to use that register.
Andrew Victor788b1fc2006-06-25 05:48:27 -07001017
Manuel Lauss45fd8a02009-01-06 14:42:18 -08001018config RTC_DRV_AU1XXX
1019 tristate "Au1xxx Counter0 RTC support"
Manuel Lauss42a4f172010-07-15 21:45:04 +02001020 depends on MIPS_ALCHEMY
Manuel Lauss45fd8a02009-01-06 14:42:18 -08001021 help
1022 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
1023 counter) to be used as a RTC.
1024
1025 This driver can also be built as a module. If so, the module
1026 will be called rtc-au1xxx.
1027
Wu, Bryan8cc75c92007-05-06 14:50:32 -07001028config RTC_DRV_BFIN
1029 tristate "Blackfin On-Chip RTC"
Graf Yang7f604592008-08-20 14:09:02 -07001030 depends on BLACKFIN && !BF561
Wu, Bryan8cc75c92007-05-06 14:50:32 -07001031 help
1032 If you say yes here you will get support for the
1033 Blackfin On-Chip Real Time Clock.
1034
1035 This driver can also be built as a module. If so, the module
1036 will be called rtc-bfin.
1037
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -07001038config RTC_DRV_RS5C313
1039 tristate "Ricoh RS5C313"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001040 depends on SH_LANDISK
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -07001041 help
1042 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
1043
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +01001044config RTC_DRV_GENERIC
1045 tristate "Generic RTC support"
1046 # Please consider writing a new RTC driver instead of using the generic
1047 # RTC abstraction
Paul Mundt47c8a082009-04-27 17:34:39 +09001048 depends on PARISC || M68K || PPC || SUPERH32
Kyle McMartin9eb16862008-09-10 14:24:07 +00001049 help
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +01001050 Say Y or M here to enable RTC support on systems using the generic
1051 RTC abstraction. If you do not know what you are doing, you should
Kyle McMartin9eb16862008-09-10 14:24:07 +00001052 just say Y.
1053
Robert Jarzmikdc944362009-01-06 14:42:14 -08001054config RTC_DRV_PXA
1055 tristate "PXA27x/PXA3xx"
1056 depends on ARCH_PXA
1057 help
1058 If you say Y here you will get access to the real time clock
1059 built into your PXA27x or PXA3xx CPU.
1060
1061 This RTC driver uses PXA RTC registers available since pxa27x
1062 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
1063
Alexey Charkovf77fbdf2011-05-26 16:25:03 -07001064config RTC_DRV_VT8500
1065 tristate "VIA/WonderMedia 85xx SoC RTC"
1066 depends on ARCH_VT8500
1067 help
1068 If you say Y here you will get access to the real time clock
1069 built into your VIA VT8500 SoC or its relatives.
1070
Robert Jarzmikdc944362009-01-06 14:42:14 -08001071
David S. Miller7a138ed2008-08-29 01:32:43 -07001072config RTC_DRV_SUN4V
1073 bool "SUN4V Hypervisor RTC"
1074 depends on SPARC64
1075 help
1076 If you say Y here you will get support for the Hypervisor
1077 based RTC on SUN4V systems.
1078
David S. Millerde2cf332008-08-28 23:02:36 -07001079config RTC_DRV_STARFIRE
1080 bool "Starfire RTC"
1081 depends on SPARC64
1082 help
1083 If you say Y here you will get support for the RTC found on
1084 Starfire systems.
1085
Atsushi Nemoto0e149232009-01-06 14:42:22 -08001086config RTC_DRV_TX4939
1087 tristate "TX4939 SoC"
1088 depends on SOC_TX4939
1089 help
1090 Driver for the internal RTC (Realtime Clock) module found on
1091 Toshiba TX4939 SoC.
1092
Saeed Bisharadefb4512009-01-06 14:42:24 -08001093config RTC_DRV_MV
1094 tristate "Marvell SoC RTC"
Gregory CLEMENTa1671da2012-12-12 10:06:23 +01001095 depends on ARCH_KIRKWOOD || ARCH_DOVE || ARCH_MVEBU
Saeed Bisharadefb4512009-01-06 14:42:24 -08001096 help
1097 If you say yes here you will get support for the in-chip RTC
1098 that can be found in some of Marvell's SoC devices, such as
1099 the Kirkwood 88F6281 and 88F6192.
1100
1101 This driver can also be built as a module. If so, the module
1102 will be called rtc-mv.
1103
Geert Uytterhoeven0b5f0372009-02-24 14:04:20 +01001104config RTC_DRV_PS3
1105 tristate "PS3 RTC"
1106 depends on PPC_PS3
1107 help
1108 If you say yes here you will get support for the RTC on PS3.
1109
1110 This driver can also be built as a module. If so, the module
1111 will be called rtc-ps3.
1112
Linus Walleijaa958f52009-09-22 16:46:24 -07001113config RTC_DRV_COH901331
1114 tristate "ST-Ericsson COH 901 331 RTC"
1115 depends on ARCH_U300
1116 help
1117 If you say Y here you will get access to ST-Ericsson
1118 COH 901 331 RTC clock found in some ST-Ericsson Mobile
1119 Platforms.
1120
1121 This driver can also be built as a module. If so, the module
1122 will be called "rtc-coh901331".
1123
1124
dmitry pervushindf17f632009-09-22 16:46:26 -07001125config RTC_DRV_STMP
Wolfram Sang46b21212011-05-25 12:56:50 +02001126 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
1127 depends on ARCH_MXS
dmitry pervushindf17f632009-09-22 16:46:26 -07001128 help
1129 If you say yes here you will get support for the onboard
Wolfram Sang46b21212011-05-25 12:56:50 +02001130 STMP3xxx/i.MX23/i.MX28 RTC.
dmitry pervushindf17f632009-09-22 16:46:26 -07001131
1132 This driver can also be built as a module. If so, the module
1133 will be called rtc-stmp3xxx.
1134
Daniel Ribeirod3c7a3f2009-09-22 16:46:27 -07001135config RTC_DRV_PCAP
1136 tristate "PCAP RTC"
1137 depends on EZX_PCAP
1138 help
1139 If you say Y here you will get support for the RTC found on
1140 the PCAP2 ASIC used on some Motorola phones.
1141
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001142config RTC_DRV_MC13XXX
1143 depends on MFD_MC13XXX
1144 tristate "Freescale MC13xxx RTC"
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001145 help
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001146 This enables support for the RTCs found on Freescale's PMICs
1147 MC13783 and MC13892.
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001148
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001149config RTC_DRV_MPC5121
1150 tristate "Freescale MPC5121 built-in RTC"
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001151 depends on PPC_MPC512x || PPC_MPC52xx
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001152 help
1153 If you say yes here you will get support for the
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001154 built-in RTC on MPC5121 or on MPC5200.
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001155
1156 This driver can also be built as a module. If so, the module
1157 will be called rtc-mpc5121.
1158
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001159config RTC_DRV_JZ4740
1160 tristate "Ingenic JZ4740 SoC"
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001161 depends on MACH_JZ4740
1162 help
1163 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1164 controller.
1165
1166 This driver can also be buillt as a module. If so, the module
1167 will be called rtc-jz4740.
1168
Kevin Wells9aa449b2010-10-27 15:33:01 -07001169config RTC_DRV_LPC32XX
1170 depends on ARCH_LPC32XX
1171 tristate "NXP LPC32XX RTC"
1172 help
1173 This enables support for the NXP RTC in the LPC32XX
1174
1175 This driver can also be buillt as a module. If so, the module
1176 will be called rtc-lpc32xx.
1177
Anirudh Ghayal9a9a54a2011-07-25 17:13:33 -07001178config RTC_DRV_PM8XXX
1179 tristate "Qualcomm PMIC8XXX RTC"
1180 depends on MFD_PM8XXX
1181 help
1182 If you say yes here you get support for the
1183 Qualcomm PMIC8XXX RTC.
1184
1185 To compile this driver as a module, choose M here: the
1186 module will be called rtc-pm8xxx.
1187
Andrew Chewff859ba2011-03-22 16:34:55 -07001188config RTC_DRV_TEGRA
1189 tristate "NVIDIA Tegra Internal RTC driver"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -07001190 depends on ARCH_TEGRA
Andrew Chewff859ba2011-03-22 16:34:55 -07001191 help
1192 If you say yes here you get support for the
1193 Tegra 200 series internal RTC module.
1194
1195 This drive can also be built as a module. If so, the module
1196 will be called rtc-tegra.
1197
Chris Metcalfdd196a22011-05-09 13:28:43 -04001198config RTC_DRV_TILE
1199 tristate "Tilera hypervisor RTC support"
1200 depends on TILE
1201 help
1202 Enable support for the Linux driver side of the Tilera
1203 hypervisor's real-time clock interface.
1204
Guan Xuetao2809e802011-05-26 16:43:27 +08001205config RTC_DRV_PUV3
1206 tristate "PKUnity v3 RTC support"
1207 depends on ARCH_PUV3
1208 help
1209 This enables support for the RTC in the PKUnity-v3 SoCs.
1210
1211 This drive can also be built as a module. If so, the module
1212 will be called rtc-puv3.
1213
zhao zhangb4f0b882012-03-23 15:02:32 -07001214config RTC_DRV_LOONGSON1
1215 tristate "loongson1 RTC support"
1216 depends on MACH_LOONGSON1
1217 help
1218 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1219 counter) to be used as a RTC.
1220
1221 This driver can also be built as a module. If so, the module
1222 will be called rtc-ls1x.
1223
Fabio Estevam79811592012-05-29 15:07:37 -07001224config RTC_DRV_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001225 tristate "Freescale MXC Real Time Clock"
1226 depends on ARCH_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001227 help
1228 If you say yes here you get support for the Freescale MXC
1229 RTC module.
1230
1231 This driver can also be built as a module, if so, the module
1232 will be called "rtc-mxc".
1233
Shawn Guo179a5022012-10-04 17:13:49 -07001234config RTC_DRV_SNVS
1235 tristate "Freescale SNVS RTC support"
1236 depends on HAS_IOMEM
1237 depends on OF
1238 help
1239 If you say yes here you get support for the Freescale SNVS
1240 Low Power (LP) RTC module.
1241
1242 This driver can also be built as a module, if so, the module
1243 will be called "rtc-snvs".
1244
Xianglong Due88b8152013-07-03 15:08:04 -07001245config RTC_DRV_SIRFSOC
1246 tristate "SiRFSOC RTC"
1247 depends on ARCH_SIRF
1248 help
1249 Say "yes" here to support the real time clock on SiRF SOC chips.
1250 This driver can also be built as a module called rtc-sirfsoc.
1251
Jonas Jensen453b4c62013-09-11 14:24:17 -07001252config RTC_DRV_MOXART
1253 tristate "MOXA ART RTC"
1254 help
1255 If you say yes here you get support for the MOXA ART
1256 RTC module.
1257
1258 This driver can also be built as a module. If so, the module
1259 will be called rtc-moxart
1260
Alexander Holler62e00cb2012-12-15 12:45:00 +00001261comment "HID Sensor RTC drivers"
1262
1263config RTC_DRV_HID_SENSOR_TIME
1264 tristate "HID Sensor Time"
1265 depends on USB_HID
1266 select IIO
1267 select HID_SENSOR_HUB
1268 select HID_SENSOR_IIO_COMMON
1269 help
1270 Say yes here to build support for the HID Sensors of type Time.
1271 This drivers makes such sensors available as RTCs.
1272
1273 If this driver is compiled as a module, it will be named
1274 rtc-hid-sensor-time.
1275
1276
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001277endif # RTC_CLASS