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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
Alexandre Belloni98ab2c92015-05-09 21:21:54 +020015 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
28config RTC_HCTOSYS_DEVICE
David Brownell7ca1d482007-05-08 00:33:42 -070029 string "RTC used to set the system time"
Xunlei Pang9c5150b2015-06-12 11:10:16 +080030 depends on RTC_HCTOSYS
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080031 default "rtc0"
32 help
David Brownell7ca1d482007-05-08 00:33:42 -070033 The RTC device that will be used to (re)initialize the system
Alessandro Zummoae64d162009-01-06 14:42:17 -080034 clock, usually rtc0. Initialization is done when the system
35 starts up, and when it resumes from a low power state. This
David Brownell779d2082007-11-14 16:58:29 -080036 device should record time in UTC, since the kernel won't do
37 timezone correction.
David Brownell7ca1d482007-05-08 00:33:42 -070038
David Brownell55ff1ab2007-07-21 04:37:56 -070039 The driver for this RTC device must be loaded before late_initcall
40 functions run, so it must usually be statically linked.
41
David Brownell7ca1d482007-05-08 00:33:42 -070042 This clock should be battery-backed, so that it reads the correct
Alessandro Zummoae64d162009-01-06 14:42:17 -080043 time when the system boots from a power-off state. Otherwise, your
David Brownell7ca1d482007-05-08 00:33:42 -070044 system will need an external clock source (like an NTP server).
45
46 If the clock you specify here is not battery backed, it may still
47 be useful to reinitialize system time when resuming from system
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -080048 sleep states. Do not specify an RTC here unless it stays powered
David Brownell7ca1d482007-05-08 00:33:42 -070049 during all this system's supported sleep states.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080050
Xunlei Pang9c5150b2015-06-12 11:10:16 +080051config RTC_SYSTOHC
52 bool "Set the RTC time based on NTP synchronization"
53 default y
54 help
55 If you say yes here, the system time (wall clock) will be stored
56 in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
57 minutes if userspace reports synchronized NTP status.
58
59config RTC_SYSTOHC_DEVICE
60 string "RTC used to synchronize NTP adjustment"
61 depends on RTC_SYSTOHC
62 default RTC_HCTOSYS_DEVICE if RTC_HCTOSYS
63 default "rtc0"
64 help
65 The RTC device used for NTP synchronization. The main difference
66 between RTC_HCTOSYS_DEVICE and RTC_SYSTOHC_DEVICE is that this
67 one can sleep when setting time, because it runs in the workqueue
68 context.
69
David Brownell9e86ecb2006-09-30 23:28:14 -070070config RTC_DEBUG
71 bool "RTC debug support"
David Brownell9e86ecb2006-09-30 23:28:14 -070072 help
73 Say yes here to enable debugging support in the RTC framework
74 and individual RTC drivers.
75
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080076comment "RTC interfaces"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080077
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080078config RTC_INTF_SYSFS
Christoph Jaeger6341e622014-12-20 15:41:11 -050079 bool "/sys/class/rtc/rtcN (sysfs)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070080 depends on SYSFS
Kevin Hilman8dc08392012-10-10 15:54:06 -070081 default RTC_CLASS
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080082 help
David Brownell9e86ecb2006-09-30 23:28:14 -070083 Say yes here if you want to use your RTCs using sysfs interfaces,
84 /sys/class/rtc/rtc0 through /sys/.../rtcN.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080085
Alessandro Zummoae64d162009-01-06 14:42:17 -080086 If unsure, say Y.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080087
Alessandro Zummo728a2942006-03-27 01:16:40 -080088config RTC_INTF_PROC
Christoph Jaeger6341e622014-12-20 15:41:11 -050089 bool "/proc/driver/rtc (procfs for rtcN)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070090 depends on PROC_FS
Kevin Hilman8dc08392012-10-10 15:54:06 -070091 default RTC_CLASS
Alessandro Zummo728a2942006-03-27 01:16:40 -080092 help
Kim, Milo92589c92012-10-04 17:13:45 -070093 Say yes here if you want to use your system clock RTC through
94 the proc interface, /proc/driver/rtc.
95 Other RTCs will not be available through that API.
96 If there is no RTC for the system clock, then the first RTC(rtc0)
97 is used by default.
Alessandro Zummo728a2942006-03-27 01:16:40 -080098
Alessandro Zummoae64d162009-01-06 14:42:17 -080099 If unsure, say Y.
Alessandro Zummo728a2942006-03-27 01:16:40 -0800100
Alessandro Zummoe8242902006-03-27 01:16:41 -0800101config RTC_INTF_DEV
Christoph Jaeger6341e622014-12-20 15:41:11 -0500102 bool "/dev/rtcN (character devices)"
Kevin Hilman8dc08392012-10-10 15:54:06 -0700103 default RTC_CLASS
Alessandro Zummoe8242902006-03-27 01:16:41 -0800104 help
David Brownell9e86ecb2006-09-30 23:28:14 -0700105 Say yes here if you want to use your RTCs using the /dev
106 interfaces, which "udev" sets up as /dev/rtc0 through
Alessandro Zummoae64d162009-01-06 14:42:17 -0800107 /dev/rtcN.
Alessandro Zummoe8242902006-03-27 01:16:41 -0800108
Alessandro Zummoae64d162009-01-06 14:42:17 -0800109 You may want to set up a symbolic link so one of these
110 can be accessed as /dev/rtc, which is a name
111 expected by "hwclock" and some other programs. Recent
112 versions of "udev" are known to set up the symlink for you.
113
114 If unsure, say Y.
Alessandro Zummoe8242902006-03-27 01:16:41 -0800115
John Stultz6e57b1d2011-02-11 17:45:40 -0800116config RTC_INTF_DEV_UIE_EMUL
117 bool "RTC UIE emulation on dev interface"
118 depends on RTC_INTF_DEV
119 help
120 Provides an emulation for RTC_UIE if the underlying rtc chip
121 driver does not expose RTC_UIE ioctls. Those requests generate
122 once-per-second update interrupts, used for synchronization.
123
124 The emulation code will read the time from the hardware
125 clock several times per second, please enable this option
126 only if you know that you really need it.
127
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700128config RTC_DRV_TEST
129 tristate "Test driver/device"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700130 help
131 If you say yes here you get support for the
132 RTC test driver. It's a software RTC which can be
133 used to test the RTC subsystem APIs. It gets
134 the time from the system clock.
135 You want this driver only if you are doing development
136 on the RTC subsystem. Please read the source code
137 for further details.
138
139 This driver can also be built as a module. If so, the module
140 will be called rtc-test.
141
142comment "I2C RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700143
144if I2C
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700145
Haojian Zhuang008b3042011-05-06 17:21:20 +0800146config RTC_DRV_88PM860X
147 tristate "Marvell 88PM860x"
Alexandre Belloni37830552015-06-08 19:27:37 +0200148 depends on MFD_88PM860X
Haojian Zhuang008b3042011-05-06 17:21:20 +0800149 help
150 If you say yes here you get support for RTC function in Marvell
151 88PM860x chips.
152
153 This driver can also be built as a module. If so, the module
154 will be called rtc-88pm860x.
155
Qiao Zhou2985c292012-07-09 14:37:34 +0800156config RTC_DRV_88PM80X
157 tristate "Marvell 88PM80x"
Alexandre Belloni37830552015-06-08 19:27:37 +0200158 depends on MFD_88PM800
Qiao Zhou2985c292012-07-09 14:37:34 +0800159 help
160 If you say yes here you get support for RTC function in Marvell
161 88PM80x chips.
162
163 This driver can also be built as a module. If so, the module
164 will be called rtc-88pm80x.
165
Arnaud Ebalard0b2f6222015-02-13 14:41:00 -0800166config RTC_DRV_ABB5ZES3
Alexandre Belloni98ab2c92015-05-09 21:21:54 +0200167 select REGMAP_I2C
168 tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
169 help
Arnaud Ebalard0b2f6222015-02-13 14:41:00 -0800170 If you say yes here you get support for the Abracon
171 AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.
172
173 This driver can also be built as a module. If so, the module
174 will be called rtc-ab-b5ze-s3.
175
Philippe De Muyter4d61ff62015-05-05 16:23:44 -0700176config RTC_DRV_ABX80X
177 tristate "Abracon ABx80x"
178 help
179 If you say yes here you get support for Abracon AB080X and AB180X
180 families of ultra-low-power battery- and capacitor-backed real-time
181 clock chips.
182
183 This driver can also be built as a module. If so, the module
184 will be called rtc-abx80x.
185
Laxman Dewanganb4506262013-11-12 15:11:05 -0800186config RTC_DRV_AS3722
187 tristate "ams AS3722 RTC driver"
188 depends on MFD_AS3722
189 help
190 If you say yes here you get support for the RTC of ams AS3722 PMIC
191 chips.
192
193 This driver can also be built as a module. If so, the module
194 will be called rtc-as3722.
195
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700196config RTC_DRV_DS1307
Matthias Fuchsa2166852009-03-31 15:24:58 -0700197 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700198 help
199 If you say yes here you get support for various compatible RTC
Alessandro Zummoae64d162009-01-06 14:42:17 -0800200 chips (often with battery backup) connected with I2C. This driver
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700201 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
Matthias Fuchsa2166852009-03-31 15:24:58 -0700202 EPSON RX-8025 and probably other chips. In some cases the RTC
203 must already have been initialized (by manufacturing or a
204 bootloader).
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700205
206 The first seven registers on these chips hold an RTC, and other
207 registers may add features such as NVRAM, a trickle charger for
Alessandro Zummoae64d162009-01-06 14:42:17 -0800208 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
David Brownell682d73f2007-11-14 16:58:32 -0800209 sysfs, but other chip features may not be available.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700210
211 This driver can also be built as a module. If so, the module
212 will be called rtc-ds1307.
213
Akinobu Mita445c0202016-01-25 00:22:16 +0900214config RTC_DRV_DS1307_HWMON
215 bool "HWMON support for rtc-ds1307"
216 depends on RTC_DRV_DS1307 && HWMON
217 depends on !(RTC_DRV_DS1307=y && HWMON=m)
218 default y
219 help
220 Say Y here if you want to expose temperature sensor data on
221 rtc-ds1307 (only DS3231)
222
Scott Woodbf4994d2007-10-16 01:28:19 -0700223config RTC_DRV_DS1374
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800224 tristate "Dallas/Maxim DS1374"
Scott Woodbf4994d2007-10-16 01:28:19 -0700225 help
226 If you say yes here you get support for Dallas Semiconductor
Alessandro Zummoae64d162009-01-06 14:42:17 -0800227 DS1374 real-time clock chips. If an interrupt is associated
Scott Woodbf4994d2007-10-16 01:28:19 -0700228 with the device, the alarm functionality is supported.
229
Alessandro Zummoae64d162009-01-06 14:42:17 -0800230 This driver can also be built as a module. If so, the module
Scott Woodbf4994d2007-10-16 01:28:19 -0700231 will be called rtc-ds1374.
232
Søren Andersen920f91e2014-12-10 15:53:54 -0800233config RTC_DRV_DS1374_WDT
234 bool "Dallas/Maxim DS1374 watchdog timer"
235 depends on RTC_DRV_DS1374
236 help
237 If you say Y here you will get support for the
238 watchdog timer in the Dallas Semiconductor DS1374
239 real-time clock chips.
240
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700241config RTC_DRV_DS1672
242 tristate "Dallas/Maxim DS1672"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700243 help
244 If you say yes here you get support for the
245 Dallas/Maxim DS1672 timekeeping chip.
246
247 This driver can also be built as a module. If so, the module
248 will be called rtc-ds1672.
249
Heiko Stuebnerdcaf0382014-01-23 15:55:10 -0800250config RTC_DRV_HYM8563
251 tristate "Haoyu Microelectronics HYM8563"
Alexandre Belloni37830552015-06-08 19:27:37 +0200252 depends on OF
Heiko Stuebnerdcaf0382014-01-23 15:55:10 -0800253 help
254 Say Y to enable support for the HYM8563 I2C RTC chip. Apart
255 from the usual rtc functions it provides a clock output of
256 up to 32kHz.
257
258 This driver can also be built as a module. If so, the module
259 will be called rtc-hym8563.
260
Kim, Milo38ae1762013-02-21 16:44:32 -0800261config RTC_DRV_LP8788
262 tristate "TI LP8788 RTC driver"
263 depends on MFD_LP8788
264 help
265 Say Y to enable support for the LP8788 RTC/ALARM driver.
266
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700267config RTC_DRV_MAX6900
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800268 tristate "Maxim MAX6900"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700269 help
270 If you say yes here you will get support for the
271 Maxim MAX6900 I2C RTC chip.
272
273 This driver can also be built as a module. If so, the module
274 will be called rtc-max6900.
275
Stephen Warren94c01ab2012-10-04 17:13:56 -0700276config RTC_DRV_MAX8907
277 tristate "Maxim MAX8907"
278 depends on MFD_MAX8907
279 help
280 If you say yes here you will get support for the
281 RTC of Maxim MAX8907 PMIC.
282
283 This driver can also be built as a module. If so, the module
284 will be called rtc-max8907.
285
Haojian Zhuanga39069f62010-01-25 06:30:29 -0500286config RTC_DRV_MAX8925
287 tristate "Maxim MAX8925"
288 depends on MFD_MAX8925
289 help
290 If you say yes here you will get support for the
291 RTC of Maxim MAX8925 PMIC.
292
293 This driver can also be built as a module. If so, the module
294 will be called rtc-max8925.
295
Joonyoung Shim9b16c0a2010-08-06 11:28:08 +0900296config RTC_DRV_MAX8998
297 tristate "Maxim MAX8998"
298 depends on MFD_MAX8998
299 help
300 If you say yes here you will get support for the
301 RTC of Maxim MAX8998 PMIC.
302
303 This driver can also be built as a module. If so, the module
304 will be called rtc-max8998.
305
Jonghwa Lee5e0b2702013-02-21 16:45:07 -0800306config RTC_DRV_MAX8997
307 tristate "Maxim MAX8997"
308 depends on MFD_MAX8997
309 help
310 If you say yes here you will get support for the
311 RTC of Maxim MAX8997 PMIC.
312
313 This driver can also be built as a module. If so, the module
314 will be called rtc-max8997.
315
Jonghwa Leefca1dd02013-02-21 16:44:26 -0800316config RTC_DRV_MAX77686
317 tristate "Maxim MAX77686"
Laxman Dewangan726fe732016-03-02 14:06:24 +0530318 depends on MFD_MAX77686 || MFD_MAX77620
Jonghwa Leefca1dd02013-02-21 16:44:26 -0800319 help
320 If you say yes here you will get support for the
Laxman Dewangan726fe732016-03-02 14:06:24 +0530321 RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC.
Jonghwa Leefca1dd02013-02-21 16:44:26 -0800322
323 This driver can also be built as a module. If so, the module
324 will be called rtc-max77686.
325
Chris Zhong3ca1e322014-10-13 15:52:42 -0700326config RTC_DRV_RK808
327 tristate "Rockchip RK808 RTC"
328 depends on MFD_RK808
329 help
330 If you say yes here you will get support for the
331 RTC of RK808 PMIC.
332
333 This driver can also be built as a module. If so, the module
334 will be called rk808-rtc.
335
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700336config RTC_DRV_RS5C372
Paul Mundt5d4529b2008-10-21 20:12:59 +0900337 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700338 help
339 If you say yes here you get support for the
Paul Mundt5d4529b2008-10-21 20:12:59 +0900340 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700341
342 This driver can also be built as a module. If so, the module
343 will be called rtc-rs5c372.
344
345config RTC_DRV_ISL1208
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800346 tristate "Intersil ISL1208"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700347 help
348 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800349 Intersil ISL1208 RTC chip.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700350
351 This driver can also be built as a module. If so, the module
352 will be called rtc-isl1208.
353
Roman Fietzed6c74282010-08-10 18:02:14 -0700354config RTC_DRV_ISL12022
355 tristate "Intersil ISL12022"
356 help
357 If you say yes here you get support for the
358 Intersil ISL12022 RTC chip.
359
360 This driver can also be built as a module. If so, the module
361 will be called rtc-isl12022.
362
Arnaud Ebalard70e12332013-12-19 23:27:28 +0100363config RTC_DRV_ISL12057
Alexandre Belloni98ab2c92015-05-09 21:21:54 +0200364 select REGMAP_I2C
365 tristate "Intersil ISL12057"
366 help
Arnaud Ebalard70e12332013-12-19 23:27:28 +0100367 If you say yes here you get support for the Intersil ISL12057
368 I2C RTC chip.
369
370 This driver can also be built as a module. If so, the module
371 will be called rtc-isl12057.
372
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700373config RTC_DRV_X1205
374 tristate "Xicor/Intersil X1205"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700375 help
376 If you say yes here you get support for the
377 Xicor/Intersil X1205 RTC chip.
378
379 This driver can also be built as a module. If so, the module
380 will be called rtc-x1205.
381
Thierry Redingf803f0d2012-12-17 16:02:44 -0800382config RTC_DRV_PCF8523
383 tristate "NXP PCF8523"
384 help
385 If you say yes here you get support for the NXP PCF8523 RTC
386 chips.
387
388 This driver can also be built as a module. If so, the module
389 will be called rtc-pcf8523.
390
Soren Brinkmannd0848852015-11-03 23:13:46 -0800391config RTC_DRV_PCF85063
392 tristate "NXP PCF85063"
393 help
394 If you say yes here you get support for the PCF85063 RTC chip
395
396 This driver can also be built as a module. If so, the module
397 will be called rtc-pcf85063.
398
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700399config RTC_DRV_PCF8563
400 tristate "Philips PCF8563/Epson RTC8564"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700401 help
402 If you say yes here you get support for the
403 Philips PCF8563 RTC chip. The Epson RTC8564
404 should work as well.
405
406 This driver can also be built as a module. If so, the module
407 will be called rtc-pcf8563.
408
409config RTC_DRV_PCF8583
410 tristate "Philips PCF8583"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700411 help
412 If you say yes here you get support for the Philips PCF8583
413 RTC chip found on Acorn RiscPCs. This driver supports the
414 platform specific method of retrieving the current year from
415 the RTC's SRAM. It will work on other platforms with the same
416 chip, but the year will probably have to be tweaked.
417
418 This driver can also be built as a module. If so, the module
419 will be called rtc-pcf8583.
420
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700421config RTC_DRV_M41T80
Wolfram Sang6b1a5232014-06-06 14:35:47 -0700422 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible"
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700423 help
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700424 If you say Y here you will get support for the ST M41T60
425 and M41T80 RTC chips series. Currently, the following chips are
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700426 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
Wolfram Sang6b1a5232014-06-06 14:35:47 -0700427 M41ST85, M41ST87, and MicroCrystal RV4162.
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700428
429 This driver can also be built as a module. If so, the module
430 will be called rtc-m41t80.
431
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700432config RTC_DRV_M41T80_WDT
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700433 bool "ST M41T65/M41T80 series RTC watchdog timer"
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700434 depends on RTC_DRV_M41T80
435 help
436 If you say Y here you will get support for the
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700437 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700438
Piotr Ziecik1ce7c832009-12-15 16:46:12 -0800439config RTC_DRV_BQ32K
440 tristate "TI BQ32000"
441 help
442 If you say Y here you will get support for the TI
443 BQ32000 I2C RTC chip.
444
445 This driver can also be built as a module. If so, the module
446 will be called rtc-bq32k.
447
David Brownellafd8d0f2009-02-04 15:12:01 -0800448config RTC_DRV_DM355EVM
449 tristate "TI DaVinci DM355 EVM RTC"
450 depends on MFD_DM355EVM_MSP
451 help
452 Supports the RTC firmware in the MSP430 on the DM355 EVM.
453
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700454config RTC_DRV_TWL92330
Christoph Jaeger6341e622014-12-20 15:41:11 -0500455 bool "TI TWL92330/Menelaus"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700456 depends on MENELAUS
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700457 help
458 If you say yes here you get support for the RTC on the
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200459 TWL92330 "Menelaus" power management chip, used with OMAP2
Alessandro Zummoae64d162009-01-06 14:42:17 -0800460 platforms. The support is integrated with the rest of
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700461 the Menelaus driver; it's not separate module.
462
David Brownellf96411a2008-10-20 23:50:05 +0200463config RTC_DRV_TWL4030
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100464 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700465 depends on TWL4030_CORE
David Brownellf96411a2008-10-20 23:50:05 +0200466 help
467 If you say yes here you get support for the RTC on the
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100468 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
David Brownellf96411a2008-10-20 23:50:05 +0200469
470 This driver can also be built as a module. If so, the module
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100471 will be called rtc-twl.
David Brownellf96411a2008-10-20 23:50:05 +0200472
Soren Brinkmannd0848852015-11-03 23:13:46 -0800473config RTC_DRV_PALMAS
474 tristate "TI Palmas RTC driver"
475 depends on MFD_PALMAS
476 help
477 If you say yes here you get support for the RTC of TI PALMA series PMIC
478 chips.
479
480 This driver can also be built as a module. If so, the module
481 will be called rtc-palma.
482
Laxman Dewangandc59ed32013-01-04 15:35:44 -0800483config RTC_DRV_TPS6586X
484 tristate "TI TPS6586X RTC driver"
485 depends on MFD_TPS6586X
486 help
Masanari Iidaa895d572013-04-09 02:06:50 +0900487 TI Power Management IC TPS6586X supports RTC functionality
Laxman Dewangandc59ed32013-01-04 15:35:44 -0800488 along with alarm. This driver supports the RTC driver for
489 the TPS6586X RTC module.
490
Venu Byravarasu0e783982012-10-04 17:13:55 -0700491config RTC_DRV_TPS65910
492 tristate "TI TPS65910 RTC driver"
493 depends on RTC_CLASS && MFD_TPS65910
494 help
495 If you say yes here you get support for the RTC on the
496 TPS65910 chips.
497
498 This driver can also be built as a module. If so, the module
499 will be called rtc-tps65910.
500
Laxman Dewangan36d61822013-02-21 16:44:34 -0800501config RTC_DRV_TPS80031
502 tristate "TI TPS80031/TPS80032 RTC driver"
503 depends on MFD_TPS80031
504 help
Masanari Iidaa895d572013-04-09 02:06:50 +0900505 TI Power Management IC TPS80031 supports RTC functionality
Laxman Dewangan36d61822013-02-21 16:44:34 -0800506 along with alarm. This driver supports the RTC driver for
507 the TPS80031 RTC module.
508
Venu Byravarasu90829c02012-10-04 17:14:04 -0700509config RTC_DRV_RC5T583
510 tristate "RICOH 5T583 RTC driver"
511 depends on MFD_RC5T583
512 help
513 If you say yes here you get support for the RTC on the
514 RICOH 5T583 chips.
515
516 This driver can also be built as a module. If so, the module
517 will be called rtc-rc5t583.
518
Byron Bradleyc46288b2008-03-04 14:28:25 -0800519config RTC_DRV_S35390A
520 tristate "Seiko Instruments S-35390A"
Randy Dunlapd4795402008-04-10 21:29:18 -0700521 select BITREVERSE
Byron Bradleyc46288b2008-03-04 14:28:25 -0800522 help
523 If you say yes here you will get support for the Seiko
524 Instruments S-35390A.
525
526 This driver can also be built as a module. If so the module
527 will be called rtc-s35390a.
528
Sergey Lapinc6d8f402008-06-12 15:21:55 -0700529config RTC_DRV_FM3130
530 tristate "Ramtron FM3130"
531 help
532 If you say Y here you will get support for the
533 Ramtron FM3130 RTC chips.
534 Ramtron FM3130 is a chip with two separate devices inside,
535 RTC clock and FRAM. This driver provides only RTC functionality.
536
537 This driver can also be built as a module. If so the module
538 will be called rtc-fm3130.
539
Akshay Bhated13d892015-12-03 14:41:21 -0500540config RTC_DRV_RX8010
541 tristate "Epson RX8010SJ"
542 depends on I2C
543 help
544 If you say yes here you get support for the Epson RX8010SJ RTC
545 chip.
546
547 This driver can also be built as a module. If so, the module
548 will be called rtc-rx8010.
549
Martyn Welcha7fa9852008-11-12 13:27:06 -0800550config RTC_DRV_RX8581
551 tristate "Epson RX-8581"
552 help
553 If you say yes here you will get support for the Epson RX-8581.
554
555 This driver can also be built as a module. If so the module
556 will be called rtc-rx8581.
557
Wolfgang Grandegger3c2b9072009-06-17 16:26:11 -0700558config RTC_DRV_RX8025
559 tristate "Epson RX-8025SA/NB"
560 help
561 If you say yes here you get support for the Epson
562 RX-8025SA/NB RTC chips.
563
564 This driver can also be built as a module. If so, the module
565 will be called rtc-rx8025.
566
Mike Rapoportae3551f2011-05-26 16:25:04 -0700567config RTC_DRV_EM3027
568 tristate "EM Microelectronic EM3027"
569 help
570 If you say yes here you get support for the EM
571 Microelectronic EM3027 RTC chips.
572
573 This driver can also be built as a module. If so, the module
574 will be called rtc-em3027.
575
Alexandre Belloni1e3929e2015-11-02 23:48:32 +0100576config RTC_DRV_RV8803
577 tristate "Micro Crystal RV8803"
578 help
579 If you say yes here you get support for the Micro Crystal
580 RV8803 RTC chips.
581
582 This driver can also be built as a module. If so, the module
583 will be called rtc-rv8803.
584
Sangbeom Kim5bccae62013-11-12 15:11:04 -0800585config RTC_DRV_S5M
Krzysztof Kozlowski0c5deb12014-06-10 15:18:46 -0700586 tristate "Samsung S2M/S5M series"
Sangbeom Kim5bccae62013-11-12 15:11:04 -0800587 depends on MFD_SEC_CORE
588 help
589 If you say yes here you will get support for the
Krzysztof Kozlowski0c5deb12014-06-10 15:18:46 -0700590 RTC of Samsung S2MPS14 and S5M PMIC series.
Sangbeom Kim5bccae62013-11-12 15:11:04 -0800591
592 This driver can also be built as a module. If so, the module
593 will be called rtc-s5m.
594
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700595endif # I2C
596
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700597comment "SPI RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700598
599if SPI_MASTER
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700600
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700601config RTC_DRV_M41T93
Alexandre Belloni98ab2c92015-05-09 21:21:54 +0200602 tristate "ST M41T93"
603 help
604 If you say yes here you will get support for the
605 ST M41T93 SPI RTC chip.
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700606
Alexandre Belloni98ab2c92015-05-09 21:21:54 +0200607 This driver can also be built as a module. If so, the module
608 will be called rtc-m41t93.
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700609
Kim B. Heino8fc2c762008-07-23 21:30:34 -0700610config RTC_DRV_M41T94
611 tristate "ST M41T94"
612 help
613 If you say yes here you will get support for the
614 ST M41T94 SPI RTC chip.
615
616 This driver can also be built as a module. If so, the module
617 will be called rtc-m41t94.
618
Sergey Yanovichd25a5ed2016-02-23 13:54:57 +0300619config RTC_DRV_DS1302
620 tristate "Dallas/Maxim DS1302"
621 depends on SPI
622 help
623 If you say yes here you get support for the Dallas DS1302 RTC chips.
624
625 This driver can also be built as a module. If so, the module
626 will be called rtc-ds1302.
627
David Brownell53e84b62008-07-23 21:30:36 -0700628config RTC_DRV_DS1305
629 tristate "Dallas/Maxim DS1305/DS1306"
630 help
631 Select this driver to get support for the Dallas/Maxim DS1305
Alessandro Zummoae64d162009-01-06 14:42:17 -0800632 and DS1306 real time clock chips. These support a trickle
David Brownell53e84b62008-07-23 21:30:36 -0700633 charger, alarms, and NVRAM in addition to the clock.
634
635 This driver can also be built as a module. If so, the module
636 will be called rtc-ds1305.
637
Raghavendra Ganiga1d6316f2014-06-06 14:35:59 -0700638config RTC_DRV_DS1343
Raghavendra Ganiga0dd449b2014-06-06 14:36:00 -0700639 select REGMAP_SPI
Raghavendra Ganiga1d6316f2014-06-06 14:35:59 -0700640 tristate "Dallas/Maxim DS1343/DS1344"
641 help
642 If you say yes here you get support for the
643 Dallas/Maxim DS1343 and DS1344 real time clock chips.
644 Support for trickle charger, alarm is provided.
645
646 This driver can also be built as a module. If so, the module
647 will be called rtc-ds1343.
648
Raghavendra Ganiga617b26a2014-04-03 14:50:16 -0700649config RTC_DRV_DS1347
650 tristate "Dallas/Maxim DS1347"
651 help
652 If you say yes here you get support for the
653 Dallas/Maxim DS1347 chips.
654
655 This driver only supports the RTC feature, and not other chip
656 features such as alarms.
657
658 This driver can also be built as a module. If so, the module
659 will be called rtc-ds1347.
660
Mark Jackson06de1802008-11-12 13:27:07 -0800661config RTC_DRV_DS1390
662 tristate "Dallas/Maxim DS1390/93/94"
663 help
Alessandro Zummo7b9b2ef2009-01-06 14:42:16 -0800664 If you say yes here you get support for the
665 Dallas/Maxim DS1390/93/94 chips.
Mark Jackson06de1802008-11-12 13:27:07 -0800666
Ivan Grimaldifa395fb2015-09-18 17:27:57 +0200667 This driver supports the RTC feature and trickle charging but not
668 other chip features such as alarms.
Mark Jackson06de1802008-11-12 13:27:07 -0800669
670 This driver can also be built as a module. If so, the module
671 will be called rtc-ds1390.
672
Venkat Prashanth B U06776c82016-06-01 11:59:54 +0530673config RTC_DRV_MAX6916
674 tristate "Maxim MAX6916"
675 help
676 If you say yes here you will get support for the
677 Maxim MAX6916 SPI RTC chip.
678
679 This driver only supports the RTC feature, and not other chip
680 features such as alarms.
681
682 This driver can also be built as a module. If so, the module
683 will be called rtc-max6916.
684
Magnus Damm2805b962008-02-06 01:38:53 -0800685config RTC_DRV_R9701
686 tristate "Epson RTC-9701JE"
687 help
688 If you say yes here you will get support for the
689 Epson RTC-9701JE SPI RTC chip.
690
691 This driver can also be built as a module. If so, the module
692 will be called rtc-r9701.
693
Soren Brinkmannd0848852015-11-03 23:13:46 -0800694config RTC_DRV_RX4581
695 tristate "Epson RX-4581"
696 help
697 If you say yes here you will get support for the Epson RX-4581.
698
699 This driver can also be built as a module. If so the module
700 will be called rtc-rx4581.
701
702config RTC_DRV_RX6110
703 tristate "Epson RX-6110"
704 select REGMAP_SPI
705 help
706 If you say yes here you will get support for the Epson RX-6610.
707
708 This driver can also be built as a module. If so the module
709 will be called rtc-rx6110.
710
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700711config RTC_DRV_RS5C348
712 tristate "Ricoh RS5C348A/B"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700713 help
714 If you say yes here you get support for the
715 Ricoh RS5C348A and RS5C348B RTC chips.
716
717 This driver can also be built as a module. If so, the module
718 will be called rtc-rs5c348.
719
Soren Brinkmannd0848852015-11-03 23:13:46 -0800720config RTC_DRV_MAX6902
721 tristate "Maxim MAX6902"
722 help
723 If you say yes here you will get support for the
724 Maxim MAX6902 SPI RTC chip.
725
726 This driver can also be built as a module. If so, the module
727 will be called rtc-max6902.
728
Chris Verges7f3923a2009-09-22 16:46:20 -0700729config RTC_DRV_PCF2123
730 tristate "NXP PCF2123"
731 help
732 If you say yes here you get support for the NXP PCF2123
733 RTC chip.
734
735 This driver can also be built as a module. If so, the module
736 will be called rtc-pcf2123.
737
Josef Gajdusek1fcbe422014-06-06 14:36:02 -0700738config RTC_DRV_MCP795
739 tristate "Microchip MCP795"
740 help
741 If you say yes here you will get support for the Microchip MCP795.
742
743 This driver can also be built as a module. If so the module
744 will be called rtc-mcp795.
745
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700746endif # SPI_MASTER
747
Akinobu Mita080481f52016-03-07 00:27:48 +0900748#
749# Helper to resolve issues with configs that have SPI enabled but I2C
750# modular. See SND_SOC_I2C_AND_SPI for more information
751#
752config RTC_I2C_AND_SPI
753 tristate
754 default m if I2C=m
755 default y if I2C=y
756 default y if SPI_MASTER=y
757 select REGMAP_I2C if I2C
758 select REGMAP_SPI if SPI_MASTER
759
760comment "SPI and I2C RTC drivers"
761
762config RTC_DRV_DS3232
763 tristate "Dallas/Maxim DS3232/DS3234"
764 depends on RTC_I2C_AND_SPI
765 help
766 If you say yes here you get support for Dallas Semiconductor
767 DS3232 and DS3234 real-time clock chips. If an interrupt is associated
768 with the device, the alarm functionality is supported.
769
770 This driver can also be built as a module. If so, the module
771 will be called rtc-ds3232.
772
Akinobu Mita9408ec12016-03-14 23:45:00 +0900773config RTC_DRV_PCF2127
774 tristate "NXP PCF2127"
775 depends on RTC_I2C_AND_SPI
776 help
777 If you say yes here you get support for the NXP PCF2127/29 RTC
778 chips.
779
780 This driver can also be built as a module. If so, the module
781 will be called rtc-pcf2127.
782
Mylène Josserandc2a1c142016-05-03 11:54:34 +0200783config RTC_DRV_RV3029C2
784 tristate "Micro Crystal RV3029/3049"
785 depends on RTC_I2C_AND_SPI
786 help
787 If you say yes here you get support for the Micro Crystal
788 RV3029 and RV3049 RTC chips.
789
790 This driver can also be built as a module. If so, the module
791 will be called rtc-rv3029c2.
792
793config RTC_DRV_RV3029_HWMON
794 bool "HWMON support for RV3029/3049"
795 depends on RTC_DRV_RV3029C2 && HWMON
796 depends on !(RTC_DRV_RV3029C2=y && HWMON=m)
797 default y
798 help
799 Say Y here if you want to expose temperature sensor data on
800 rtc-rv3029.
801
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700802comment "Platform RTC drivers"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800803
David Brownell7be2c7c2007-02-10 01:46:02 -0800804# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
805# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
806# global rtc_lock ... it's not yet just another platform_device.
807
808config RTC_DRV_CMOS
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700809 tristate "PC-style 'CMOS'"
Geert Uytterhoeven41c9dbf2014-01-23 15:55:12 -0800810 depends on X86 || ARM || M32R || PPC || MIPS || SPARC64
David Brownellc7500902008-04-28 02:11:52 -0700811 default y if X86
David Brownell7be2c7c2007-02-10 01:46:02 -0800812 help
813 Say "yes" here to get direct support for the real time clock
814 found in every PC or ACPI-based system, and some other boards.
815 Specifically the original MC146818, compatibles like those in
816 PC south bridges, the DS12887 or M48T86, some multifunction
817 or LPC bus chips, and so on.
818
819 Your system will need to define the platform device used by
Alessandro Zummoae64d162009-01-06 14:42:17 -0800820 this driver, otherwise it won't be accessible. This means
David Brownell7be2c7c2007-02-10 01:46:02 -0800821 you can safely enable this driver if you don't know whether
822 or not your board has this kind of hardware.
823
824 This driver can also be built as a module. If so, the module
825 will be called rtc-cmos.
826
Richard Henderson85d0b3a2013-07-13 15:49:45 -0700827config RTC_DRV_ALPHA
828 bool "Alpha PC-style CMOS"
829 depends on ALPHA
830 default y
831 help
832 Direct support for the real-time clock found on every Alpha
833 system, specifically MC146818 compatibles. If in doubt, say Y.
834
Feng Tang0146f262010-11-10 17:29:17 +0000835config RTC_DRV_VRTC
Alan Cox933b9462011-12-17 17:43:40 +0000836 tristate "Virtual RTC for Intel MID platforms"
837 depends on X86_INTEL_MID
838 default y if X86_INTEL_MID
Feng Tang0146f262010-11-10 17:29:17 +0000839
840 help
841 Say "yes" here to get direct support for the real time clock
842 found on Moorestown platforms. The VRTC is a emulated RTC that
843 derives its clock source from a real RTC in the PMIC. The MC146818
844 style programming interface is mostly conserved, but any
845 updates are done via IPC calls to the system controller FW.
846
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700847config RTC_DRV_DS1216
848 tristate "Dallas DS1216"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700849 depends on SNI_RM
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700850 help
851 If you say yes here you get support for the Dallas DS1216 RTC chips.
852
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200853config RTC_DRV_DS1286
854 tristate "Dallas DS1286"
Chen Gang706b6322014-10-13 15:53:14 -0700855 depends on HAS_IOMEM
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200856 help
857 If you say yes here you get support for the Dallas DS1286 RTC chips.
858
Andrew Sharp8f267952008-02-06 01:38:46 -0800859config RTC_DRV_DS1511
860 tristate "Dallas DS1511"
Chen Gang706b6322014-10-13 15:53:14 -0700861 depends on HAS_IOMEM
Andrew Sharp8f267952008-02-06 01:38:46 -0800862 help
863 If you say yes here you get support for the
864 Dallas DS1511 timekeeping/watchdog chip.
865
866 This driver can also be built as a module. If so, the module
867 will be called rtc-ds1511.
868
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700869config RTC_DRV_DS1553
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800870 tristate "Maxim/Dallas DS1553"
Chen Gang706b6322014-10-13 15:53:14 -0700871 depends on HAS_IOMEM
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700872 help
873 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800874 Maxim/Dallas DS1553 timekeeping chip.
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700875
876 This driver can also be built as a module. If so, the module
877 will be called rtc-ds1553.
878
Joshua Kinardaaaf5fb2015-02-16 16:00:26 -0800879config RTC_DRV_DS1685_FAMILY
880 tristate "Dallas/Maxim DS1685 Family"
881 help
882 If you say yes here you get support for the Dallas/Maxim DS1685
883 family of real time chips. This family includes the DS1685/DS1687,
884 DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and
885 DS17885/DS17887 chips.
886
887 This driver can also be built as a module. If so, the module
888 will be called rtc-ds1685.
889
890choice
891 prompt "Subtype"
892 depends on RTC_DRV_DS1685_FAMILY
893 default RTC_DRV_DS1685
894
895config RTC_DRV_DS1685
896 bool "DS1685/DS1687"
897 help
898 This enables support for the Dallas/Maxim DS1685/DS1687 real time
899 clock chip.
900
901 This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30)
902 systems, as well as EPPC-405-UC modules by electronic system design
903 GmbH.
904
905config RTC_DRV_DS1689
906 bool "DS1689/DS1693"
907 help
908 This enables support for the Dallas/Maxim DS1689/DS1693 real time
909 clock chip.
910
911 This is an older RTC chip, supplanted by the DS1685/DS1687 above,
912 which supports a few minor features such as Vcc, Vbat, and Power
913 Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
914
915 It also works for the even older DS1688/DS1691 RTC chips, which are
916 virtually the same and carry the same model number. Both chips
917 have 114 bytes of user NVRAM.
918
919config RTC_DRV_DS17285
920 bool "DS17285/DS17287"
921 help
922 This enables support for the Dallas/Maxim DS17285/DS17287 real time
923 clock chip.
924
925 This chip features 2kb of extended NV-SRAM. It may possibly be
926 found in some SGI O2 systems (rare).
927
928config RTC_DRV_DS17485
929 bool "DS17485/DS17487"
930 help
931 This enables support for the Dallas/Maxim DS17485/DS17487 real time
932 clock chip.
933
934 This chip features 4kb of extended NV-SRAM.
935
936config RTC_DRV_DS17885
937 bool "DS17885/DS17887"
938 help
939 This enables support for the Dallas/Maxim DS17885/DS17887 real time
940 clock chip.
941
942 This chip features 8kb of extended NV-SRAM.
943
944endchoice
945
946config RTC_DS1685_PROC_REGS
947 bool "Display register values in /proc"
948 depends on RTC_DRV_DS1685_FAMILY && PROC_FS
949 help
950 Enable this to display a readout of all of the RTC registers in
951 /proc/drivers/rtc. Keep in mind that this can potentially lead
952 to lost interrupts, as reading Control Register C will clear
953 all pending IRQ flags.
954
955 Unless you are debugging this driver, choose N.
956
957config RTC_DS1685_SYSFS_REGS
958 bool "SysFS access to RTC register bits"
959 depends on RTC_DRV_DS1685_FAMILY && SYSFS
960 help
961 Enable this to provide access to the RTC control register bits
962 in /sys. Some of the bits are read-write, others are read-only.
963
964 Keep in mind that reading Control C's bits automatically clears
965 all pending IRQ flags - this can cause lost interrupts.
966
967 If you know that you need access to these bits, choose Y, Else N.
968
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800969config RTC_DRV_DS1742
970 tristate "Maxim/Dallas DS1742/1743"
Chen Gang706b6322014-10-13 15:53:14 -0700971 depends on HAS_IOMEM
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800972 help
973 If you say yes here you get support for the
974 Maxim/Dallas DS1742/1743 timekeeping chip.
975
976 This driver can also be built as a module. If so, the module
977 will be called rtc-ds1742.
978
Jean Delvaread0200f2014-08-08 14:20:03 -0700979config RTC_DRV_DS2404
980 tristate "Maxim/Dallas DS2404"
981 help
982 If you say yes here you get support for the
983 Dallas DS2404 RTC chip.
984
985 This driver can also be built as a module. If so, the module
986 will be called rtc-ds2404.
987
Ashish Jangamfef931f2012-03-23 15:02:36 -0700988config RTC_DRV_DA9052
989 tristate "Dialog DA9052/DA9053 RTC"
990 depends on PMIC_DA9052
991 help
992 Say y here to support the RTC driver for Dialog Semiconductor
993 DA9052-BC and DA9053-AA/Bx PMICs.
994
Ashish Jangam6920d992012-12-17 16:02:53 -0800995config RTC_DRV_DA9055
996 tristate "Dialog Semiconductor DA9055 RTC"
997 depends on MFD_DA9055
998 help
999 If you say yes here you will get support for the
1000 RTC of the Dialog DA9055 PMIC.
1001
1002 This driver can also be built as a module. If so, the module
1003 will be called rtc-da9055
1004
Opensource [Steve Twiss]c2a57552014-06-06 14:36:03 -07001005config RTC_DRV_DA9063
S Twiss80ca3272015-07-21 11:29:07 +01001006 tristate "Dialog Semiconductor DA9063/DA9062 RTC"
1007 depends on MFD_DA9063 || MFD_DA9062
Opensource [Steve Twiss]c2a57552014-06-06 14:36:03 -07001008 help
1009 If you say yes here you will get support for the RTC subsystem
S Twiss80ca3272015-07-21 11:29:07 +01001010 for the Dialog Semiconductor PMIC chips DA9063 and DA9062.
Opensource [Steve Twiss]c2a57552014-06-06 14:36:03 -07001011
1012 This driver can also be built as a module. If so, the module
1013 will be called "rtc-da9063".
1014
dann frazier5e3fd9e2009-03-31 15:24:48 -07001015config RTC_DRV_EFI
1016 tristate "EFI RTC"
Matt Fleming7efe6652014-10-03 13:06:33 +01001017 depends on EFI && !X86
dann frazier5e3fd9e2009-03-31 15:24:48 -07001018 help
1019 If you say yes here you will get support for the EFI
1020 Real Time Clock.
1021
1022 This driver can also be built as a module. If so, the module
1023 will be called rtc-efi.
1024
Thomas Hommel02964112007-07-21 04:37:58 -07001025config RTC_DRV_STK17TA8
1026 tristate "Simtek STK17TA8"
Chen Gang706b6322014-10-13 15:53:14 -07001027 depends on HAS_IOMEM
Thomas Hommel02964112007-07-21 04:37:58 -07001028 help
1029 If you say yes here you get support for the
1030 Simtek STK17TA8 timekeeping chip.
1031
1032 This driver can also be built as a module. If so, the module
1033 will be called rtc-stk17ta8.
1034
Alessandro Zummo09a21e52007-05-08 00:33:48 -07001035config RTC_DRV_M48T86
1036 tristate "ST M48T86/Dallas DS12887"
Alessandro Zummo09a21e52007-05-08 00:33:48 -07001037 help
1038 If you say Y here you will get support for the
1039 ST M48T86 and Dallas DS12887 RTC chips.
1040
1041 This driver can also be built as a module. If so, the module
1042 will be called rtc-m48t86.
1043
Thomas Bogendoerferd1dbd82e2008-10-14 17:17:32 +02001044config RTC_DRV_M48T35
1045 tristate "ST M48T35"
Chen Gang706b6322014-10-13 15:53:14 -07001046 depends on HAS_IOMEM
Thomas Bogendoerferd1dbd82e2008-10-14 17:17:32 +02001047 help
1048 If you say Y here you will get support for the
1049 ST M48T35 RTC chip.
1050
1051 This driver can also be built as a module, if so, the module
1052 will be called "rtc-m48t35".
1053
Mark Zhan2e774c72007-07-17 04:05:05 -07001054config RTC_DRV_M48T59
Krzysztof Helt94fe7422008-09-03 15:12:34 -07001055 tristate "ST M48T59/M48T08/M48T02"
Chen Gang706b6322014-10-13 15:53:14 -07001056 depends on HAS_IOMEM
Mark Zhan2e774c72007-07-17 04:05:05 -07001057 help
1058 If you say Y here you will get support for the
Krzysztof Helt94fe7422008-09-03 15:12:34 -07001059 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
1060
1061 These chips are usually found in Sun SPARC and UltraSPARC
1062 workstations.
Mark Zhan2e774c72007-07-17 04:05:05 -07001063
1064 This driver can also be built as a module, if so, the module
1065 will be called "rtc-m48t59".
1066
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +01001067config RTC_DRV_MSM6242
1068 tristate "Oki MSM6242"
Chen Gang706b6322014-10-13 15:53:14 -07001069 depends on HAS_IOMEM
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +01001070 help
1071 If you say yes here you get support for the Oki MSM6242
1072 timekeeping chip. It is used in some Amiga models (e.g. A2000).
1073
1074 This driver can also be built as a module. If so, the module
1075 will be called rtc-msm6242.
1076
David S. Millercca4c232008-08-29 01:29:53 -07001077config RTC_DRV_BQ4802
1078 tristate "TI BQ4802"
Chen Gang706b6322014-10-13 15:53:14 -07001079 depends on HAS_IOMEM
David S. Millercca4c232008-08-29 01:29:53 -07001080 help
1081 If you say Y here you will get support for the TI
1082 BQ4802 RTC chip.
1083
1084 This driver can also be built as a module. If so, the module
1085 will be called rtc-bq4802.
1086
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +01001087config RTC_DRV_RP5C01
1088 tristate "Ricoh RP5C01"
Chen Gang706b6322014-10-13 15:53:14 -07001089 depends on HAS_IOMEM
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +01001090 help
1091 If you say yes here you get support for the Ricoh RP5C01
1092 timekeeping chip. It is used in some Amiga models (e.g. A3000
1093 and A4000).
1094
1095 This driver can also be built as a module. If so, the module
1096 will be called rtc-rp5c01.
1097
Alessandro Zummo09a21e52007-05-08 00:33:48 -07001098config RTC_DRV_V3020
1099 tristate "EM Microelectronic V3020"
Alessandro Zummo09a21e52007-05-08 00:33:48 -07001100 help
1101 If you say yes here you will get support for the
1102 EM Microelectronic v3020 RTC chip.
1103
1104 This driver can also be built as a module. If so, the module
1105 will be called rtc-v3020.
1106
Mark Brown35c86bf2009-08-27 19:59:05 +02001107config RTC_DRV_WM831X
1108 tristate "Wolfson Microelectronics WM831x RTC"
1109 depends on MFD_WM831X
1110 help
1111 If you say yes here you will get support for the RTC subsystem
1112 of the Wolfson Microelectronics WM831X series PMICs.
1113
1114 This driver can also be built as a module. If so, the module
1115 will be called "rtc-wm831x".
1116
Mark Brown077eaf52008-11-12 13:27:04 -08001117config RTC_DRV_WM8350
1118 tristate "Wolfson Microelectronics WM8350 RTC"
1119 depends on MFD_WM8350
1120 help
1121 If you say yes here you will get support for the RTC subsystem
1122 of the Wolfson Microelectronics WM8350.
1123
1124 This driver can also be built as a module. If so, the module
1125 will be called "rtc-wm8350".
1126
Rajeev Kumar0942a712011-05-26 16:25:09 -07001127config RTC_DRV_SPEAR
1128 tristate "SPEAR ST RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001129 depends on PLAT_SPEAR || COMPILE_TEST
Rajeev Kumar0942a712011-05-26 16:25:09 -07001130 default y
1131 help
1132 If you say Y here you will get support for the RTC found on
1133 spear
1134
Balaji Raoeae854b2009-01-09 01:50:51 +01001135config RTC_DRV_PCF50633
1136 depends on MFD_PCF50633
1137 tristate "NXP PCF50633 RTC"
1138 help
1139 If you say yes here you get support for the RTC subsystem of the
1140 NXP PCF50633 used in embedded systems.
1141
Linus Walleijbd207cf2009-08-30 23:49:04 +02001142config RTC_DRV_AB3100
1143 tristate "ST-Ericsson AB3100 RTC"
1144 depends on AB3100_CORE
1145 default y if AB3100_CORE
1146 help
1147 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
1148 support. This chip contains a battery- and capacitor-backed RTC.
1149
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -07001150config RTC_DRV_AB8500
1151 tristate "ST-Ericsson AB8500 RTC"
1152 depends on AB8500_CORE
Ulf Hansson651fb482012-10-04 17:14:32 -07001153 select RTC_INTF_DEV
Ramesh Chandrasekarandc43d4a2012-07-30 14:41:41 -07001154 select RTC_INTF_DEV_UIE_EMUL
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -07001155 help
1156 Select this to enable the ST-Ericsson AB8500 power management IC RTC
1157 support. This chip contains a battery- and capacitor-backed RTC.
1158
Wan ZongShunafd49a7e2009-12-15 16:46:17 -08001159config RTC_DRV_NUC900
1160 tristate "NUC910/NUC920 RTC driver"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001161 depends on ARCH_W90X900 || COMPILE_TEST
Wan ZongShunafd49a7e2009-12-15 16:46:17 -08001162 help
1163 If you say yes here you get support for the RTC subsystem of the
1164 NUC910/NUC920 used in embedded systems.
Linus Walleijbd207cf2009-08-30 23:49:04 +02001165
Neelesh Gupta16b1d262014-10-14 14:08:36 +05301166config RTC_DRV_OPAL
1167 tristate "IBM OPAL RTC driver"
1168 depends on PPC_POWERNV
1169 default y
1170 help
1171 If you say yes here you get support for the PowerNV platform RTC
1172 driver based on OPAL interfaces.
1173
1174 This driver can also be built as a module. If so, the module
1175 will be called rtc-opal.
1176
Suneel Garapati11143c12015-08-19 15:23:22 +05301177config RTC_DRV_ZYNQMP
1178 tristate "Xilinx Zynq Ultrascale+ MPSoC RTC"
1179 depends on OF
1180 help
1181 If you say yes here you get support for the RTC controller found on
1182 Xilinx Zynq Ultrascale+ MPSoC.
1183
Alessandro Zummo09a21e52007-05-08 00:33:48 -07001184comment "on-CPU RTC drivers"
Alessandro Zummo09a21e52007-05-08 00:33:48 -07001185
Oleksij Rempel125e5502016-02-02 20:56:10 +01001186config RTC_DRV_ASM9260
1187 tristate "Alphascale asm9260 RTC"
1188 depends on MACH_ASM9260
1189 help
1190 If you say yes here you get support for the RTC on the
1191 Alphascale asm9260 SoC.
1192
1193 This driver can also be built as a module. If so, the module
1194 will be called rtc-asm9260.
1195
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -06001196config RTC_DRV_DAVINCI
1197 tristate "TI DaVinci RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001198 depends on ARCH_DAVINCI_DM365 || COMPILE_TEST
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -06001199 help
1200 If you say yes here you get support for the RTC on the
1201 DaVinci platforms (DM365).
1202
1203 This driver can also be built as a module. If so, the module
1204 will be called rtc-davinci.
1205
Baruch Siachba172202015-04-16 12:45:40 -07001206config RTC_DRV_DIGICOLOR
1207 tristate "Conexant Digicolor RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001208 depends on ARCH_DIGICOLOR || COMPILE_TEST
Baruch Siachba172202015-04-16 12:45:40 -07001209 help
1210 If you say yes here you get support for the RTC on Conexant
1211 Digicolor platforms. This currently includes the CX92755 SoC.
1212
1213 This driver can also be built as a module. If so, the module
1214 will be called rtc-digicolor.
1215
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001216config RTC_DRV_IMXDI
1217 tristate "Freescale IMX DryIce Real Time Clock"
Roland Stiggeef216ad2012-12-17 16:02:22 -08001218 depends on ARCH_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001219 help
1220 Support for Freescale IMX DryIce RTC
1221
1222 This driver can also be built as a module, if so, the module
1223 will be called "rtc-imxdi".
1224
David Brownelldb68b182006-12-06 20:38:36 -08001225config RTC_DRV_OMAP
Lokesh Vutla86089762015-04-16 12:46:03 -07001226 tristate "TI OMAP Real Time Clock"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001227 depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST
David Brownelldb68b182006-12-06 20:38:36 -08001228 help
Afzal Mohammed427af9a2012-12-17 16:02:17 -08001229 Say "yes" here to support the on chip real time clock
Lokesh Vutla86089762015-04-16 12:46:03 -07001230 present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
Afzal Mohammed427af9a2012-12-17 16:02:17 -08001231
1232 This driver can also be built as a module, if so, module
1233 will be called rtc-omap.
David Brownelldb68b182006-12-06 20:38:36 -08001234
Atul Dahiya16f4efe2010-07-20 16:38:49 +05301235config HAVE_S3C_RTC
1236 bool
1237 help
1238 This will include RTC support for Samsung SoCs. If
1239 you want to include RTC support for any machine, kindly
1240 select this in the respective mach-XXXX/Kconfig file.
1241
Ben Dooks1add6782006-07-01 04:36:26 -07001242config RTC_DRV_S3C
1243 tristate "Samsung S3C series SoC RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001244 depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST
Ben Dooks1add6782006-07-01 04:36:26 -07001245 help
1246 RTC (Realtime Clock) driver for the clock inbuilt into the
1247 Samsung S3C24XX series of SoCs. This can provide periodic
1248 interrupt rates from 1Hz to 64Hz for user programs, and
1249 wakeup from Alarm.
1250
1251 The driver currently supports the common features on all the
1252 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
1253 and S3C2442.
1254
1255 This driver can also be build as a module. If so, the module
1256 will be called rtc-s3c.
1257
Alessandro Zummofd507e22006-03-27 01:16:45 -08001258config RTC_DRV_EP93XX
1259 tristate "Cirrus Logic EP93XX"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001260 depends on ARCH_EP93XX || COMPILE_TEST
Alessandro Zummofd507e22006-03-27 01:16:45 -08001261 help
1262 If you say yes here you get support for the
1263 RTC embedded in the Cirrus Logic EP93XX processors.
1264
1265 This driver can also be built as a module. If so, the module
1266 will be called rtc-ep93xx.
1267
Richard Purdiee842f1c2006-03-27 01:16:46 -08001268config RTC_DRV_SA1100
Haojian Zhuang3888c092012-02-21 11:51:13 +08001269 tristate "SA11x0/PXA2xx/PXA910"
1270 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
Richard Purdiee842f1c2006-03-27 01:16:46 -08001271 help
1272 If you say Y here you will get access to the real time clock
1273 built into your SA11x0 or PXA2xx CPU.
1274
1275 To compile this driver as a module, choose M here: the
1276 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -08001277
Paul Mundt317a6102006-09-27 17:13:19 +09001278config RTC_DRV_SH
1279 tristate "SuperH On-Chip RTC"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -07001280 depends on SUPERH && HAVE_CLK
Paul Mundt317a6102006-09-27 17:13:19 +09001281 help
1282 Say Y here to enable support for the on-chip RTC found in
1283 most SuperH processors.
1284
Alexandre Belloni98ab2c92015-05-09 21:21:54 +02001285 To compile this driver as a module, choose M here: the
Paul Mundt317a6102006-09-27 17:13:19 +09001286 module will be called rtc-sh.
1287
Yoichi Yuasa8417eb72006-04-10 22:54:47 -07001288config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -07001289 tristate "NEC VR41XX"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001290 depends on CPU_VR41XX || COMPILE_TEST
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -07001291 help
1292 If you say Y here you will get access to the real time clock
1293 built into your NEC VR41XX CPU.
1294
1295 To compile this driver as a module, choose M here: the
1296 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -07001297
Russell Kinga1909012008-04-20 12:08:36 +01001298config RTC_DRV_PL030
1299 tristate "ARM AMBA PL030 RTC"
1300 depends on ARM_AMBA
1301 help
1302 If you say Y here you will get access to ARM AMBA
1303 PrimeCell PL030 RTC found on certain ARM SOCs.
1304
1305 To compile this driver as a module, choose M here: the
1306 module will be called rtc-pl030.
1307
Deepak Saxena8ae6e162006-06-25 05:47:38 -07001308config RTC_DRV_PL031
1309 tristate "ARM AMBA PL031 RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001310 depends on ARM_AMBA
Deepak Saxena8ae6e162006-06-25 05:47:38 -07001311 help
1312 If you say Y here you will get access to ARM AMBA
Alessandro Zummo09a21e52007-05-08 00:33:48 -07001313 PrimeCell PL031 RTC found on certain ARM SOCs.
Deepak Saxena8ae6e162006-06-25 05:47:38 -07001314
1315 To compile this driver as a module, choose M here: the
1316 module will be called rtc-pl031.
1317
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -07001318config RTC_DRV_AT32AP700X
1319 tristate "AT32AP700X series RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001320 depends on PLATFORM_AT32AP || COMPILE_TEST
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -07001321 help
1322 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
1323 AT32AP700x family processors.
1324
Andrew Victor7fc39f62006-12-10 02:19:03 -08001325config RTC_DRV_AT91RM9200
Nicolas Ferre24cecc12010-10-22 19:12:52 +02001326 tristate "AT91RM9200 or some AT91SAM9 RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001327 depends on ARCH_AT91 || COMPILE_TEST
Andrew Victor788b1fc2006-06-25 05:48:27 -07001328 help
David Brownell4cdf8542008-02-06 01:38:59 -08001329 Driver for the internal RTC (Realtime Clock) module found on
Nicolas Ferre24cecc12010-10-22 19:12:52 +02001330 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
David Brownell4cdf8542008-02-06 01:38:59 -08001331 this is powered by the backup power supply.
1332
1333config RTC_DRV_AT91SAM9
Boris BREZILLON3969eb42014-09-23 13:16:05 +02001334 tristate "AT91SAM9 RTT as RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001335 depends on ARCH_AT91 || COMPILE_TEST
Boris BREZILLON43e112b2014-09-23 13:14:44 +02001336 select MFD_SYSCON
David Brownell4cdf8542008-02-06 01:38:59 -08001337 help
Boris BREZILLON3969eb42014-09-23 13:16:05 +02001338 Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which
1339 can be used as an RTC thanks to the backup power supply (e.g. a
1340 small coin cell battery) which keeps this block and the GPBR
1341 (General Purpose Backup Registers) block powered when the device
1342 is shutdown.
1343 Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd
1344 probably want to use the real RTC block instead of the "RTT as an
1345 RTC" driver.
David Brownell4cdf8542008-02-06 01:38:59 -08001346
Manuel Lauss45fd8a02009-01-06 14:42:18 -08001347config RTC_DRV_AU1XXX
1348 tristate "Au1xxx Counter0 RTC support"
Manuel Lauss42a4f172010-07-15 21:45:04 +02001349 depends on MIPS_ALCHEMY
Manuel Lauss45fd8a02009-01-06 14:42:18 -08001350 help
1351 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
1352 counter) to be used as a RTC.
1353
1354 This driver can also be built as a module. If so, the module
1355 will be called rtc-au1xxx.
1356
Wu, Bryan8cc75c92007-05-06 14:50:32 -07001357config RTC_DRV_BFIN
1358 tristate "Blackfin On-Chip RTC"
Graf Yang7f604592008-08-20 14:09:02 -07001359 depends on BLACKFIN && !BF561
Wu, Bryan8cc75c92007-05-06 14:50:32 -07001360 help
1361 If you say yes here you will get support for the
1362 Blackfin On-Chip Real Time Clock.
1363
1364 This driver can also be built as a module. If so, the module
1365 will be called rtc-bfin.
1366
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -07001367config RTC_DRV_RS5C313
1368 tristate "Ricoh RS5C313"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001369 depends on SH_LANDISK
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -07001370 help
1371 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
1372
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +01001373config RTC_DRV_GENERIC
1374 tristate "Generic RTC support"
1375 # Please consider writing a new RTC driver instead of using the generic
1376 # RTC abstraction
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001377 depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST
Kyle McMartin9eb16862008-09-10 14:24:07 +00001378 help
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +01001379 Say Y or M here to enable RTC support on systems using the generic
1380 RTC abstraction. If you do not know what you are doing, you should
Kyle McMartin9eb16862008-09-10 14:24:07 +00001381 just say Y.
1382
Robert Jarzmikdc944362009-01-06 14:42:14 -08001383config RTC_DRV_PXA
Alexandre Belloni832315b2016-03-10 05:46:18 +01001384 tristate "PXA27x/PXA3xx"
1385 depends on ARCH_PXA
1386 select RTC_DRV_SA1100
1387 help
Rob Herring3cdf4ad2015-05-13 09:20:04 -05001388 If you say Y here you will get access to the real time clock
1389 built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs
1390 consisting of an SA1100 compatible RTC and the extended PXA RTC.
Robert Jarzmikdc944362009-01-06 14:42:14 -08001391
Alexandre Belloni98ab2c92015-05-09 21:21:54 +02001392 This RTC driver uses PXA RTC registers available since pxa27x
1393 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
Robert Jarzmikdc944362009-01-06 14:42:14 -08001394
Alexey Charkovf77fbdf2011-05-26 16:25:03 -07001395config RTC_DRV_VT8500
1396 tristate "VIA/WonderMedia 85xx SoC RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001397 depends on ARCH_VT8500 || COMPILE_TEST
Alexey Charkovf77fbdf2011-05-26 16:25:03 -07001398 help
1399 If you say Y here you will get access to the real time clock
1400 built into your VIA VT8500 SoC or its relatives.
1401
Robert Jarzmikdc944362009-01-06 14:42:14 -08001402
David S. Miller7a138ed2008-08-29 01:32:43 -07001403config RTC_DRV_SUN4V
1404 bool "SUN4V Hypervisor RTC"
1405 depends on SPARC64
1406 help
1407 If you say Y here you will get support for the Hypervisor
1408 based RTC on SUN4V systems.
1409
Chen-Yu Tsai9765d2d2014-08-26 11:54:55 +08001410config RTC_DRV_SUN6I
1411 tristate "Allwinner A31 RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001412 default MACH_SUN6I || MACH_SUN8I || COMPILE_TEST
Andre Przywara28639342016-02-01 17:39:22 +00001413 depends on ARCH_SUNXI
Chen-Yu Tsai9765d2d2014-08-26 11:54:55 +08001414 help
Andre Przywara28639342016-02-01 17:39:22 +00001415 If you say Y here you will get support for the RTC found in
1416 some Allwinner SoCs like the A31 or the A64.
Chen-Yu Tsai9765d2d2014-08-26 11:54:55 +08001417
Carlo Caione594c6fb2013-11-16 18:33:54 +01001418config RTC_DRV_SUNXI
1419 tristate "Allwinner sun4i/sun7i RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001420 depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST
Carlo Caione594c6fb2013-11-16 18:33:54 +01001421 help
1422 If you say Y here you will get support for the RTC found on
1423 Allwinner A10/A20.
1424
David S. Millerde2cf332008-08-28 23:02:36 -07001425config RTC_DRV_STARFIRE
1426 bool "Starfire RTC"
1427 depends on SPARC64
1428 help
1429 If you say Y here you will get support for the RTC found on
1430 Starfire systems.
1431
Atsushi Nemoto0e149232009-01-06 14:42:22 -08001432config RTC_DRV_TX4939
1433 tristate "TX4939 SoC"
1434 depends on SOC_TX4939
1435 help
1436 Driver for the internal RTC (Realtime Clock) module found on
1437 Toshiba TX4939 SoC.
1438
Saeed Bisharadefb4512009-01-06 14:42:24 -08001439config RTC_DRV_MV
1440 tristate "Marvell SoC RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001441 depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST
Saeed Bisharadefb4512009-01-06 14:42:24 -08001442 help
1443 If you say yes here you will get support for the in-chip RTC
1444 that can be found in some of Marvell's SoC devices, such as
1445 the Kirkwood 88F6281 and 88F6192.
1446
1447 This driver can also be built as a module. If so, the module
1448 will be called rtc-mv.
1449
Gregory CLEMENTa3a42802015-02-13 14:41:11 -08001450config RTC_DRV_ARMADA38X
1451 tristate "Armada 38x Marvell SoC RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001452 depends on ARCH_MVEBU || COMPILE_TEST
Gregory CLEMENTa3a42802015-02-13 14:41:11 -08001453 help
1454 If you say yes here you will get support for the in-chip RTC
1455 that can be found in the Armada 38x Marvell's SoC device
1456
1457 This driver can also be built as a module. If so, the module
1458 will be called armada38x-rtc.
1459
Hans Ulli Kroll98a9bb52015-05-20 17:49:31 +02001460config RTC_DRV_GEMINI
1461 tristate "Gemini SoC RTC"
1462 depends on ARCH_GEMINI || COMPILE_TEST
1463 depends on HAS_IOMEM
1464 help
1465 If you say Y here you will get support for the
1466 RTC found on Gemini SoC's.
1467
1468 This driver can also be built as a module. If so, the module
1469 will be called rtc-gemini.
1470
Geert Uytterhoeven0b5f0372009-02-24 14:04:20 +01001471config RTC_DRV_PS3
1472 tristate "PS3 RTC"
1473 depends on PPC_PS3
1474 help
1475 If you say yes here you will get support for the RTC on PS3.
1476
1477 This driver can also be built as a module. If so, the module
1478 will be called rtc-ps3.
1479
Linus Walleijaa958f52009-09-22 16:46:24 -07001480config RTC_DRV_COH901331
1481 tristate "ST-Ericsson COH 901 331 RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001482 depends on ARCH_U300 || COMPILE_TEST
Linus Walleijaa958f52009-09-22 16:46:24 -07001483 help
1484 If you say Y here you will get access to ST-Ericsson
1485 COH 901 331 RTC clock found in some ST-Ericsson Mobile
1486 Platforms.
1487
1488 This driver can also be built as a module. If so, the module
1489 will be called "rtc-coh901331".
1490
1491
dmitry pervushindf17f632009-09-22 16:46:26 -07001492config RTC_DRV_STMP
Wolfram Sang46b21212011-05-25 12:56:50 +02001493 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001494 depends on ARCH_MXS || COMPILE_TEST
Alexandre Belloni20d048a2015-05-03 11:29:44 +02001495 select STMP_DEVICE
dmitry pervushindf17f632009-09-22 16:46:26 -07001496 help
1497 If you say yes here you will get support for the onboard
Wolfram Sang46b21212011-05-25 12:56:50 +02001498 STMP3xxx/i.MX23/i.MX28 RTC.
dmitry pervushindf17f632009-09-22 16:46:26 -07001499
1500 This driver can also be built as a module. If so, the module
1501 will be called rtc-stmp3xxx.
1502
Daniel Ribeirod3c7a3f2009-09-22 16:46:27 -07001503config RTC_DRV_PCAP
1504 tristate "PCAP RTC"
1505 depends on EZX_PCAP
1506 help
1507 If you say Y here you will get support for the RTC found on
1508 the PCAP2 ASIC used on some Motorola phones.
1509
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001510config RTC_DRV_MC13XXX
1511 depends on MFD_MC13XXX
1512 tristate "Freescale MC13xxx RTC"
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001513 help
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001514 This enables support for the RTCs found on Freescale's PMICs
1515 MC13783 and MC13892.
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001516
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001517config RTC_DRV_MPC5121
1518 tristate "Freescale MPC5121 built-in RTC"
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001519 depends on PPC_MPC512x || PPC_MPC52xx
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001520 help
1521 If you say yes here you will get support for the
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001522 built-in RTC on MPC5121 or on MPC5200.
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001523
1524 This driver can also be built as a module. If so, the module
1525 will be called rtc-mpc5121.
1526
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001527config RTC_DRV_JZ4740
1528 tristate "Ingenic JZ4740 SoC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001529 depends on MACH_JZ4740 || COMPILE_TEST
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001530 help
1531 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1532 controller.
1533
1534 This driver can also be buillt as a module. If so, the module
1535 will be called rtc-jz4740.
1536
Joachim Eastwoodc28b42e2015-07-11 19:28:49 +02001537config RTC_DRV_LPC24XX
1538 tristate "NXP RTC for LPC178x/18xx/408x/43xx"
1539 depends on ARCH_LPC18XX || COMPILE_TEST
1540 depends on OF && HAS_IOMEM
1541 help
1542 This enables support for the NXP RTC found which can be found on
1543 NXP LPC178x/18xx/408x/43xx devices.
1544
1545 If you have one of the devices above enable this driver to use
1546 the hardware RTC. This driver can also be buillt as a module. If
1547 so, the module will be called rtc-lpc24xx.
1548
Kevin Wells9aa449b2010-10-27 15:33:01 -07001549config RTC_DRV_LPC32XX
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001550 depends on ARCH_LPC32XX || COMPILE_TEST
Kevin Wells9aa449b2010-10-27 15:33:01 -07001551 tristate "NXP LPC32XX RTC"
1552 help
1553 This enables support for the NXP RTC in the LPC32XX
1554
1555 This driver can also be buillt as a module. If so, the module
1556 will be called rtc-lpc32xx.
1557
Anirudh Ghayal9a9a54a2011-07-25 17:13:33 -07001558config RTC_DRV_PM8XXX
1559 tristate "Qualcomm PMIC8XXX RTC"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001560 depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST
Anirudh Ghayal9a9a54a2011-07-25 17:13:33 -07001561 help
1562 If you say yes here you get support for the
1563 Qualcomm PMIC8XXX RTC.
1564
1565 To compile this driver as a module, choose M here: the
1566 module will be called rtc-pm8xxx.
1567
Andrew Chewff859ba2011-03-22 16:34:55 -07001568config RTC_DRV_TEGRA
1569 tristate "NVIDIA Tegra Internal RTC driver"
Alexandre Belloni7a587ea2015-05-03 11:00:57 +02001570 depends on ARCH_TEGRA || COMPILE_TEST
Andrew Chewff859ba2011-03-22 16:34:55 -07001571 help
1572 If you say yes here you get support for the
1573 Tegra 200 series internal RTC module.
1574
1575 This drive can also be built as a module. If so, the module
1576 will be called rtc-tegra.
1577
Chris Metcalfdd196a22011-05-09 13:28:43 -04001578config RTC_DRV_TILE
1579 tristate "Tilera hypervisor RTC support"
1580 depends on TILE
1581 help
1582 Enable support for the Linux driver side of the Tilera
1583 hypervisor's real-time clock interface.
1584
Guan Xuetao2809e802011-05-26 16:43:27 +08001585config RTC_DRV_PUV3
1586 tristate "PKUnity v3 RTC support"
1587 depends on ARCH_PUV3
1588 help
1589 This enables support for the RTC in the PKUnity-v3 SoCs.
1590
1591 This drive can also be built as a module. If so, the module
1592 will be called rtc-puv3.
1593
zhao zhangb4f0b882012-03-23 15:02:32 -07001594config RTC_DRV_LOONGSON1
1595 tristate "loongson1 RTC support"
Huacai Chen30ad29b2015-04-21 10:00:35 +08001596 depends on MACH_LOONGSON32
zhao zhangb4f0b882012-03-23 15:02:32 -07001597 help
1598 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1599 counter) to be used as a RTC.
1600
1601 This driver can also be built as a module. If so, the module
1602 will be called rtc-ls1x.
1603
Fabio Estevam79811592012-05-29 15:07:37 -07001604config RTC_DRV_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001605 tristate "Freescale MXC Real Time Clock"
1606 depends on ARCH_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001607 help
1608 If you say yes here you get support for the Freescale MXC
1609 RTC module.
1610
1611 This driver can also be built as a module, if so, the module
1612 will be called "rtc-mxc".
1613
Shawn Guo179a5022012-10-04 17:13:49 -07001614config RTC_DRV_SNVS
1615 tristate "Freescale SNVS RTC support"
Shawn Guo8a0fa182015-07-13 15:58:51 +08001616 select REGMAP_MMIO
Shawn Guo179a5022012-10-04 17:13:49 -07001617 depends on HAS_IOMEM
1618 depends on OF
1619 help
1620 If you say yes here you get support for the Freescale SNVS
1621 Low Power (LP) RTC module.
1622
1623 This driver can also be built as a module, if so, the module
1624 will be called "rtc-snvs".
1625
Xianglong Due88b8152013-07-03 15:08:04 -07001626config RTC_DRV_SIRFSOC
1627 tristate "SiRFSOC RTC"
1628 depends on ARCH_SIRF
1629 help
1630 Say "yes" here to support the real time clock on SiRF SOC chips.
1631 This driver can also be built as a module called rtc-sirfsoc.
1632
Lee Jonesb5b2bdf2015-04-09 15:47:33 +01001633config RTC_DRV_ST_LPC
1634 tristate "STMicroelectronics LPC RTC"
1635 depends on ARCH_STI
1636 depends on OF
1637 help
1638 Say Y here to include STMicroelectronics Low Power Controller
1639 (LPC) based RTC support.
1640
1641 To compile this driver as a module, choose M here: the
1642 module will be called rtc-st-lpc.
1643
Jonas Jensen453b4c62013-09-11 14:24:17 -07001644config RTC_DRV_MOXART
1645 tristate "MOXA ART RTC"
Jean Delvare441fb762014-08-08 14:20:05 -07001646 depends on ARCH_MOXART || COMPILE_TEST
Jonas Jensen453b4c62013-09-11 14:24:17 -07001647 help
1648 If you say yes here you get support for the MOXA ART
1649 RTC module.
1650
1651 This driver can also be built as a module. If so, the module
1652 will be called rtc-moxart
1653
Tianping Fangfc297912015-05-06 15:23:41 +08001654config RTC_DRV_MT6397
1655 tristate "Mediatek Real Time Clock driver"
Arnd Bergmann04d3ba72016-01-25 17:04:46 +01001656 depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN)
Tianping Fangfc297912015-05-06 15:23:41 +08001657 help
1658 This selects the Mediatek(R) RTC driver. RTC is part of Mediatek
1659 MT6397 PMIC. You should enable MT6397 PMIC MFD before select
1660 Mediatek(R) RTC driver.
1661
1662 If you want to use Mediatek(R) RTC interface, select Y or M here.
1663
Loc Hof12d8692014-06-06 14:35:42 -07001664config RTC_DRV_XGENE
1665 tristate "APM X-Gene RTC"
Chen Gang706b6322014-10-13 15:53:14 -07001666 depends on HAS_IOMEM
Jean Delvarefdf8afa2015-05-06 09:24:42 +02001667 depends on ARCH_XGENE || COMPILE_TEST
Loc Hof12d8692014-06-06 14:35:42 -07001668 help
1669 If you say yes here you get support for the APM X-Gene SoC real time
1670 clock.
1671
1672 This driver can also be built as a module, if so, the module
1673 will be called "rtc-xgene".
1674
Joshua Henderson51aa9052016-02-25 10:30:44 -07001675config RTC_DRV_PIC32
1676 tristate "Microchip PIC32 RTC"
1677 depends on MACH_PIC32
1678 default y
1679 help
1680 If you say yes here you get support for the PIC32 RTC module.
1681
1682 This driver can also be built as a module. If so, the module
1683 will be called rtc-pic32
1684
Alexander Holler62e00cb2012-12-15 12:45:00 +00001685comment "HID Sensor RTC drivers"
1686
1687config RTC_DRV_HID_SENSOR_TIME
1688 tristate "HID Sensor Time"
1689 depends on USB_HID
1690 select IIO
1691 select HID_SENSOR_HUB
1692 select HID_SENSOR_IIO_COMMON
1693 help
1694 Say yes here to build support for the HID Sensors of type Time.
1695 This drivers makes such sensors available as RTCs.
1696
1697 If this driver is compiled as a module, it will be named
1698 rtc-hid-sensor-time.
1699
1700
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001701endif # RTC_CLASS