xref: /linux/drivers/rtc/Kconfig (revision d00a18a42c1483924de086ddfb0efe8da1dba3ac)
17be2c7c9SDavid Brownell#
2c58411e9SAlessandro Zummo# RTC class/drivers configuration
3c58411e9SAlessandro Zummo#
4c58411e9SAlessandro Zummo
5c58411e9SAlessandro Zummoconfig RTC_LIB
6b4d246b1SJohn Stultz	bool
70c86edc0SAlessandro Zummo
8d6faca40SArnd Bergmannconfig RTC_MC146818_LIB
9d6faca40SArnd Bergmann	bool
10d6faca40SArnd Bergmann	select RTC_LIB
11d6faca40SArnd Bergmann
12bb35fb20SJan Engelhardtmenuconfig RTC_CLASS
13b4d246b1SJohn Stultz	bool "Real Time Clock"
140c86edc0SAlessandro Zummo	default n
153369465eSAl Viro	depends on !S390 && !UML
160c86edc0SAlessandro Zummo	select RTC_LIB
170c86edc0SAlessandro Zummo	help
180c86edc0SAlessandro Zummo	  Generic RTC class support. If you say yes here, you will
190c86edc0SAlessandro Zummo	  be allowed to plug one or more RTCs to your system. You will
2027ae4104SAdrian Bunk	  probably want to enable one or more of the interfaces below.
210c86edc0SAlessandro Zummo
22bb35fb20SJan Engelhardtif RTC_CLASS
23bb35fb20SJan Engelhardt
240c86edc0SAlessandro Zummoconfig RTC_HCTOSYS
257ca1d488SDavid Brownell	bool "Set system time from RTC on startup and resume"
260c86edc0SAlessandro Zummo	default y
270c86edc0SAlessandro Zummo	help
287ca1d488SDavid Brownell	  If you say yes here, the system time (wall clock) will be set using
297ca1d488SDavid Brownell	  the value read from a specified RTC device. This is useful to avoid
307ca1d488SDavid Brownell	  unnecessary fsck runs at boot time, and to network better.
310c86edc0SAlessandro Zummo
320c86edc0SAlessandro Zummoconfig RTC_HCTOSYS_DEVICE
337ca1d488SDavid Brownell	string "RTC used to set the system time"
349c5150b3SXunlei Pang	depends on RTC_HCTOSYS
350c86edc0SAlessandro Zummo	default "rtc0"
360c86edc0SAlessandro Zummo	help
377ca1d488SDavid Brownell	  The RTC device that will be used to (re)initialize the system
387ca1d488SDavid Brownell	  clock, usually rtc0. Initialization is done when the system
39779d2089SDavid Brownell	  starts up, and when it resumes from a low power state. This
40779d2089SDavid Brownell	  device should record time in UTC, since the kernel won't do
41779d2089SDavid Brownell	  timezone correction.
427ca1d488SDavid Brownell
4355ff1abaSDavid Brownell	  The driver for this RTC device must be loaded before late_initcall
4455ff1abaSDavid Brownell	  functions run, so it must usually be statically linked.
4555ff1abaSDavid Brownell
467ca1d488SDavid Brownell	  This clock should be battery-backed, so that it reads the correct
477ca1d488SDavid Brownell	  time when the system boots from a power-off state. Otherwise, your
487ca1d488SDavid Brownell	  system will need an external clock source (like an NTP server).
497ca1d488SDavid Brownell
507ca1d488SDavid Brownell	  If the clock you specify here is not battery backed, it may still
517ca1d488SDavid Brownell	  be useful to reinitialize system time when resuming from system
527ca1d488SDavid Brownell	  sleep states. Do not specify an RTC here unless it stays powered
537ca1d488SDavid Brownell	  during all this system's supported sleep states.
540c86edc0SAlessandro Zummo
559c5150b3SXunlei Pangconfig RTC_SYSTOHC
569c5150b3SXunlei Pang	bool "Set the RTC time based on NTP synchronization"
579c5150b3SXunlei Pang	default y
589c5150b3SXunlei Pang	help
599c5150b3SXunlei Pang	  If you say yes here, the system time (wall clock) will be stored
609c5150b3SXunlei Pang	  in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
619c5150b3SXunlei Pang	  minutes if userspace reports synchronized NTP status.
629c5150b3SXunlei Pang
639c5150b3SXunlei Pangconfig RTC_SYSTOHC_DEVICE
649c5150b3SXunlei Pang	string "RTC used to synchronize NTP adjustment"
659c5150b3SXunlei Pang	depends on RTC_SYSTOHC
669c5150b3SXunlei Pang	default RTC_HCTOSYS_DEVICE if RTC_HCTOSYS
679c5150b3SXunlei Pang	default "rtc0"
689c5150b3SXunlei Pang	help
699c5150b3SXunlei Pang	  The RTC device used for NTP synchronization. The main difference
709c5150b3SXunlei Pang	  between RTC_HCTOSYS_DEVICE and RTC_SYSTOHC_DEVICE is that this
719c5150b3SXunlei Pang	  one can sleep when setting time, because it runs in the workqueue
729c5150b3SXunlei Pang	  context.
739c5150b3SXunlei Pang
749e86ecb6SDavid Brownellconfig RTC_DEBUG
759e86ecb6SDavid Brownell	bool "RTC debug support"
769e86ecb6SDavid Brownell	help
779e86ecb6SDavid Brownell	  Say yes here to enable debugging support in the RTC framework
789e86ecb6SDavid Brownell	  and individual RTC drivers.
799e86ecb6SDavid Brownell
800c86edc0SAlessandro Zummocomment "RTC interfaces"
810c86edc0SAlessandro Zummo
82c5c3e192SAlessandro Zummoconfig RTC_INTF_SYSFS
836341e62bSChristoph Jaeger	bool "/sys/class/rtc/rtcN (sysfs)"
84bb35fb20SJan Engelhardt	depends on SYSFS
858dc08395SKevin Hilman	default RTC_CLASS
86c5c3e192SAlessandro Zummo	help
879e86ecb6SDavid Brownell	  Say yes here if you want to use your RTCs using sysfs interfaces,
889e86ecb6SDavid Brownell	  /sys/class/rtc/rtc0 through /sys/.../rtcN.
89c5c3e192SAlessandro Zummo
90ae64d169SAlessandro Zummo	  If unsure, say Y.
91c5c3e192SAlessandro Zummo
92728a2947SAlessandro Zummoconfig RTC_INTF_PROC
936341e62bSChristoph Jaeger	bool "/proc/driver/rtc (procfs for rtcN)"
94bb35fb20SJan Engelhardt	depends on PROC_FS
958dc08395SKevin Hilman	default RTC_CLASS
96728a2947SAlessandro Zummo	help
9792589c98SKim, Milo	  Say yes here if you want to use your system clock RTC through
9892589c98SKim, Milo	  the proc interface, /proc/driver/rtc.
9992589c98SKim, Milo	  Other RTCs will not be available through that API.
10092589c98SKim, Milo	  If there is no RTC for the system clock, then the first RTC(rtc0)
10192589c98SKim, Milo	  is used by default.
102728a2947SAlessandro Zummo
103ae64d169SAlessandro Zummo	  If unsure, say Y.
104728a2947SAlessandro Zummo
105e824290eSAlessandro Zummoconfig RTC_INTF_DEV
1066341e62bSChristoph Jaeger	bool "/dev/rtcN (character devices)"
1078dc08395SKevin Hilman	default RTC_CLASS
108e824290eSAlessandro Zummo	help
1099e86ecb6SDavid Brownell	  Say yes here if you want to use your RTCs using the /dev
1109e86ecb6SDavid Brownell	  interfaces, which "udev" sets up as /dev/rtc0 through
111ae64d169SAlessandro Zummo	  /dev/rtcN.
112e824290eSAlessandro Zummo
113ae64d169SAlessandro Zummo	  You may want to set up a symbolic link so one of these
114ae64d169SAlessandro Zummo	  can be accessed as /dev/rtc, which is a name
115ae64d169SAlessandro Zummo	  expected by "hwclock" and some other programs. Recent
116ae64d169SAlessandro Zummo	  versions of "udev" are known to set up the symlink for you.
117ae64d169SAlessandro Zummo
118ae64d169SAlessandro Zummo	  If unsure, say Y.
119e824290eSAlessandro Zummo
1206e57b1d6SJohn Stultzconfig RTC_INTF_DEV_UIE_EMUL
1216e57b1d6SJohn Stultz	bool "RTC UIE emulation on dev interface"
1226e57b1d6SJohn Stultz	depends on RTC_INTF_DEV
1236e57b1d6SJohn Stultz	help
1246e57b1d6SJohn Stultz	  Provides an emulation for RTC_UIE if the underlying rtc chip
1256e57b1d6SJohn Stultz	  driver does not expose RTC_UIE ioctls. Those requests generate
1266e57b1d6SJohn Stultz	  once-per-second update interrupts, used for synchronization.
1276e57b1d6SJohn Stultz
1286e57b1d6SJohn Stultz	  The emulation code will read the time from the hardware
1296e57b1d6SJohn Stultz	  clock several times per second, please enable this option
1306e57b1d6SJohn Stultz	  only if you know that you really need it.
1316e57b1d6SJohn Stultz
13209a21e56SAlessandro Zummoconfig RTC_DRV_TEST
13309a21e56SAlessandro Zummo	tristate "Test driver/device"
13409a21e56SAlessandro Zummo	help
13509a21e56SAlessandro Zummo	  If you say yes here you get support for the
13609a21e56SAlessandro Zummo	  RTC test driver. It's a software RTC which can be
13709a21e56SAlessandro Zummo	  used to test the RTC subsystem APIs. It gets
13809a21e56SAlessandro Zummo	  the time from the system clock.
13909a21e56SAlessandro Zummo	  You want this driver only if you are doing development
14009a21e56SAlessandro Zummo	  on the RTC subsystem. Please read the source code
14109a21e56SAlessandro Zummo	  for further details.
14209a21e56SAlessandro Zummo
14309a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
14409a21e56SAlessandro Zummo	  will be called rtc-test.
14509a21e56SAlessandro Zummo
14609a21e56SAlessandro Zummocomment "I2C RTC drivers"
147bb35fb20SJan Engelhardt
148bb35fb20SJan Engelhardtif I2C
14909a21e56SAlessandro Zummo
150008b3040SHaojian Zhuangconfig RTC_DRV_88PM860X
151008b3040SHaojian Zhuang	tristate "Marvell 88PM860x"
1523783055eSAlexandre Belloni	depends on MFD_88PM860X
153008b3040SHaojian Zhuang	help
154008b3040SHaojian Zhuang	  If you say yes here you get support for RTC function in Marvell
155008b3040SHaojian Zhuang	  88PM860x chips.
156008b3040SHaojian Zhuang
157008b3040SHaojian Zhuang	  This driver can also be built as a module. If so, the module
158008b3040SHaojian Zhuang	  will be called rtc-88pm860x.
159008b3040SHaojian Zhuang
1602985c29cSQiao Zhouconfig RTC_DRV_88PM80X
1612985c29cSQiao Zhou	tristate "Marvell 88PM80x"
1623783055eSAlexandre Belloni	depends on MFD_88PM800
1632985c29cSQiao Zhou	help
1642985c29cSQiao Zhou	  If you say yes here you get support for RTC function in Marvell
1652985c29cSQiao Zhou	  88PM80x chips.
1662985c29cSQiao Zhou
1672985c29cSQiao Zhou	  This driver can also be built as a module. If so, the module
1682985c29cSQiao Zhou	  will be called rtc-88pm80x.
1692985c29cSQiao Zhou
1700b2f6228SArnaud Ebalardconfig RTC_DRV_ABB5ZES3
1710b2f6228SArnaud Ebalard	select REGMAP_I2C
1720b2f6228SArnaud Ebalard	tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
1730b2f6228SArnaud Ebalard	help
1740b2f6228SArnaud Ebalard	  If you say yes here you get support for the Abracon
1750b2f6228SArnaud Ebalard	  AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.
1760b2f6228SArnaud Ebalard
1770b2f6228SArnaud Ebalard	  This driver can also be built as a module. If so, the module
1780b2f6228SArnaud Ebalard	  will be called rtc-ab-b5ze-s3.
1790b2f6228SArnaud Ebalard
1804d61ff6bSPhilippe De Muyterconfig RTC_DRV_ABX80X
1814d61ff6bSPhilippe De Muyter	tristate "Abracon ABx80x"
1824d61ff6bSPhilippe De Muyter	help
1834d61ff6bSPhilippe De Muyter	  If you say yes here you get support for Abracon AB080X and AB180X
1844d61ff6bSPhilippe De Muyter	  families of ultra-low-power  battery- and capacitor-backed real-time
1854d61ff6bSPhilippe De Muyter	  clock chips.
1864d61ff6bSPhilippe De Muyter
1874d61ff6bSPhilippe De Muyter	  This driver can also be built as a module. If so, the module
1884d61ff6bSPhilippe De Muyter	  will be called rtc-abx80x.
1894d61ff6bSPhilippe De Muyter
190*d00a18a4SChen-Yu Tsaiconfig RTC_DRV_AC100
191*d00a18a4SChen-Yu Tsai	tristate "X-Powers AC100"
192*d00a18a4SChen-Yu Tsai	depends on MFD_AC100
193*d00a18a4SChen-Yu Tsai	help
194*d00a18a4SChen-Yu Tsai	  If you say yes here you get support for the real-time clock found
195*d00a18a4SChen-Yu Tsai	  in X-Powers AC100 family peripheral ICs.
196*d00a18a4SChen-Yu Tsai
197*d00a18a4SChen-Yu Tsai	  This driver can also be built as a module. If so, the module
198*d00a18a4SChen-Yu Tsai	  will be called rtc-ac100.
199*d00a18a4SChen-Yu Tsai
200b4506261SLaxman Dewanganconfig RTC_DRV_AS3722
201b4506261SLaxman Dewangan	tristate "ams AS3722 RTC driver"
202b4506261SLaxman Dewangan	depends on MFD_AS3722
203b4506261SLaxman Dewangan	help
204b4506261SLaxman Dewangan	  If you say yes here you get support for the RTC of ams AS3722 PMIC
205b4506261SLaxman Dewangan	  chips.
206b4506261SLaxman Dewangan
207b4506261SLaxman Dewangan	  This driver can also be built as a module. If so, the module
208b4506261SLaxman Dewangan	  will be called rtc-as3722.
209b4506261SLaxman Dewangan
21009a21e56SAlessandro Zummoconfig RTC_DRV_DS1307
211a2166858SMatthias Fuchs	tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
21209a21e56SAlessandro Zummo	help
21309a21e56SAlessandro Zummo	  If you say yes here you get support for various compatible RTC
21409a21e56SAlessandro Zummo	  chips (often with battery backup) connected with I2C. This driver
21509a21e56SAlessandro Zummo	  should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
216a2166858SMatthias Fuchs	  EPSON RX-8025 and probably other chips. In some cases the RTC
217a2166858SMatthias Fuchs	  must already have been initialized (by manufacturing or a
218a2166858SMatthias Fuchs	  bootloader).
21909a21e56SAlessandro Zummo
22009a21e56SAlessandro Zummo	  The first seven registers on these chips hold an RTC, and other
22109a21e56SAlessandro Zummo	  registers may add features such as NVRAM, a trickle charger for
222682d73f6SDavid Brownell	  the RTC/NVRAM backup power, and alarms. NVRAM is visible in
223682d73f6SDavid Brownell	  sysfs, but other chip features may not be available.
22409a21e56SAlessandro Zummo
22509a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
22609a21e56SAlessandro Zummo	  will be called rtc-ds1307.
22709a21e56SAlessandro Zummo
228445c0207SAkinobu Mitaconfig RTC_DRV_DS1307_HWMON
229445c0207SAkinobu Mita	bool "HWMON support for rtc-ds1307"
230445c0207SAkinobu Mita	depends on RTC_DRV_DS1307 && HWMON
231445c0207SAkinobu Mita	depends on !(RTC_DRV_DS1307=y && HWMON=m)
232445c0207SAkinobu Mita	default y
233445c0207SAkinobu Mita	help
234445c0207SAkinobu Mita	  Say Y here if you want to expose temperature sensor data on
235445c0207SAkinobu Mita	  rtc-ds1307 (only DS3231)
236445c0207SAkinobu Mita
237bf4994d7SScott Woodconfig RTC_DRV_DS1374
23809b6bdb3SAlessandro Zummo	tristate "Dallas/Maxim DS1374"
239bf4994d7SScott Wood	help
240bf4994d7SScott Wood	  If you say yes here you get support for Dallas Semiconductor
241bf4994d7SScott Wood	  DS1374 real-time clock chips. If an interrupt is associated
242bf4994d7SScott Wood	  with the device, the alarm functionality is supported.
243bf4994d7SScott Wood
244bf4994d7SScott Wood	  This driver can also be built as a module. If so, the module
245bf4994d7SScott Wood	  will be called rtc-ds1374.
246bf4994d7SScott Wood
247920f91e5SSøren Andersenconfig RTC_DRV_DS1374_WDT
248920f91e5SSøren Andersen	bool "Dallas/Maxim DS1374 watchdog timer"
249920f91e5SSøren Andersen	depends on RTC_DRV_DS1374
250920f91e5SSøren Andersen	help
251920f91e5SSøren Andersen	  If you say Y here you will get support for the
252920f91e5SSøren Andersen	  watchdog timer in the Dallas Semiconductor DS1374
253920f91e5SSøren Andersen	  real-time clock chips.
254920f91e5SSøren Andersen
25509a21e56SAlessandro Zummoconfig RTC_DRV_DS1672
25609a21e56SAlessandro Zummo	tristate "Dallas/Maxim DS1672"
25709a21e56SAlessandro Zummo	help
25809a21e56SAlessandro Zummo	  If you say yes here you get support for the
25909a21e56SAlessandro Zummo	  Dallas/Maxim DS1672 timekeeping chip.
26009a21e56SAlessandro Zummo
26109a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
26209a21e56SAlessandro Zummo	  will be called rtc-ds1672.
26309a21e56SAlessandro Zummo
264dcaf0384SHeiko Stuebnerconfig RTC_DRV_HYM8563
265dcaf0384SHeiko Stuebner	tristate "Haoyu Microelectronics HYM8563"
2663783055eSAlexandre Belloni	depends on OF
267dcaf0384SHeiko Stuebner	help
268dcaf0384SHeiko Stuebner	  Say Y to enable support for the HYM8563 I2C RTC chip. Apart
269dcaf0384SHeiko Stuebner	  from the usual rtc functions it provides a clock output of
270dcaf0384SHeiko Stuebner	  up to 32kHz.
271dcaf0384SHeiko Stuebner
272dcaf0384SHeiko Stuebner	  This driver can also be built as a module. If so, the module
273dcaf0384SHeiko Stuebner	  will be called rtc-hym8563.
274dcaf0384SHeiko Stuebner
27538ae176eSKim, Miloconfig RTC_DRV_LP8788
27638ae176eSKim, Milo	tristate "TI LP8788 RTC driver"
27738ae176eSKim, Milo	depends on MFD_LP8788
27838ae176eSKim, Milo	help
27938ae176eSKim, Milo	  Say Y to enable support for the LP8788 RTC/ALARM driver.
28038ae176eSKim, Milo
28109a21e56SAlessandro Zummoconfig RTC_DRV_MAX6900
28209b6bdb3SAlessandro Zummo	tristate "Maxim MAX6900"
28309a21e56SAlessandro Zummo	help
28409a21e56SAlessandro Zummo	  If you say yes here you will get support for the
28509a21e56SAlessandro Zummo	  Maxim MAX6900 I2C RTC chip.
28609a21e56SAlessandro Zummo
28709a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
28809a21e56SAlessandro Zummo	  will be called rtc-max6900.
28909a21e56SAlessandro Zummo
29094c01ab6SStephen Warrenconfig RTC_DRV_MAX8907
29194c01ab6SStephen Warren	tristate "Maxim MAX8907"
29294c01ab6SStephen Warren	depends on MFD_MAX8907
29394c01ab6SStephen Warren	help
29494c01ab6SStephen Warren	  If you say yes here you will get support for the
29594c01ab6SStephen Warren	  RTC of Maxim MAX8907 PMIC.
29694c01ab6SStephen Warren
29794c01ab6SStephen Warren	  This driver can also be built as a module. If so, the module
29894c01ab6SStephen Warren	  will be called rtc-max8907.
29994c01ab6SStephen Warren
300a39069f6SHaojian Zhuangconfig RTC_DRV_MAX8925
301a39069f6SHaojian Zhuang	tristate "Maxim MAX8925"
302a39069f6SHaojian Zhuang	depends on MFD_MAX8925
303a39069f6SHaojian Zhuang	help
304a39069f6SHaojian Zhuang	  If you say yes here you will get support for the
305a39069f6SHaojian Zhuang	  RTC of Maxim MAX8925 PMIC.
306a39069f6SHaojian Zhuang
307a39069f6SHaojian Zhuang	  This driver can also be built as a module. If so, the module
308a39069f6SHaojian Zhuang	  will be called rtc-max8925.
309a39069f6SHaojian Zhuang
3109b16c0a4SJoonyoung Shimconfig RTC_DRV_MAX8998
3119b16c0a4SJoonyoung Shim	tristate "Maxim MAX8998"
3129b16c0a4SJoonyoung Shim	depends on MFD_MAX8998
3139b16c0a4SJoonyoung Shim	help
3149b16c0a4SJoonyoung Shim	  If you say yes here you will get support for the
3159b16c0a4SJoonyoung Shim	  RTC of Maxim MAX8998 PMIC.
3169b16c0a4SJoonyoung Shim
3179b16c0a4SJoonyoung Shim	  This driver can also be built as a module. If so, the module
3189b16c0a4SJoonyoung Shim	  will be called rtc-max8998.
3199b16c0a4SJoonyoung Shim
3205e0b2704SJonghwa Leeconfig RTC_DRV_MAX8997
3215e0b2704SJonghwa Lee	tristate "Maxim MAX8997"
3225e0b2704SJonghwa Lee	depends on MFD_MAX8997
3235e0b2704SJonghwa Lee	help
3245e0b2704SJonghwa Lee	  If you say yes here you will get support for the
3255e0b2704SJonghwa Lee	  RTC of Maxim MAX8997 PMIC.
3265e0b2704SJonghwa Lee
3275e0b2704SJonghwa Lee	  This driver can also be built as a module. If so, the module
3285e0b2704SJonghwa Lee	  will be called rtc-max8997.
3295e0b2704SJonghwa Lee
330fca1dd03SJonghwa Leeconfig RTC_DRV_MAX77686
331fca1dd03SJonghwa Lee	tristate "Maxim MAX77686"
332726fe738SLaxman Dewangan	depends on MFD_MAX77686 || MFD_MAX77620
333fca1dd03SJonghwa Lee	help
334fca1dd03SJonghwa Lee	  If you say yes here you will get support for the
335726fe738SLaxman Dewangan	  RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC.
336fca1dd03SJonghwa Lee
337fca1dd03SJonghwa Lee	  This driver can also be built as a module. If so, the module
338fca1dd03SJonghwa Lee	  will be called rtc-max77686.
339fca1dd03SJonghwa Lee
3403ca1e326SChris Zhongconfig RTC_DRV_RK808
3413ca1e326SChris Zhong	tristate "Rockchip RK808 RTC"
3423ca1e326SChris Zhong	depends on MFD_RK808
3433ca1e326SChris Zhong	help
3443ca1e326SChris Zhong	  If you say yes here you will get support for the
3453ca1e326SChris Zhong	  RTC of RK808 PMIC.
3463ca1e326SChris Zhong
3473ca1e326SChris Zhong	  This driver can also be built as a module. If so, the module
3483ca1e326SChris Zhong	  will be called rk808-rtc.
3493ca1e326SChris Zhong
35009a21e56SAlessandro Zummoconfig RTC_DRV_RS5C372
3515d4529beSPaul Mundt	tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
35209a21e56SAlessandro Zummo	help
35309a21e56SAlessandro Zummo	  If you say yes here you get support for the
3545d4529beSPaul Mundt	  Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
35509a21e56SAlessandro Zummo
35609a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
35709a21e56SAlessandro Zummo	  will be called rtc-rs5c372.
35809a21e56SAlessandro Zummo
35909a21e56SAlessandro Zummoconfig RTC_DRV_ISL1208
36009b6bdb3SAlessandro Zummo	tristate "Intersil ISL1208"
36109a21e56SAlessandro Zummo	help
36209a21e56SAlessandro Zummo	  If you say yes here you get support for the
36309b6bdb3SAlessandro Zummo	  Intersil ISL1208 RTC chip.
36409a21e56SAlessandro Zummo
36509a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
36609a21e56SAlessandro Zummo	  will be called rtc-isl1208.
36709a21e56SAlessandro Zummo
368d6c7428fSRoman Fietzeconfig RTC_DRV_ISL12022
369d6c7428fSRoman Fietze	tristate "Intersil ISL12022"
370d6c7428fSRoman Fietze	help
371d6c7428fSRoman Fietze	  If you say yes here you get support for the
372d6c7428fSRoman Fietze	  Intersil ISL12022 RTC chip.
373d6c7428fSRoman Fietze
374d6c7428fSRoman Fietze	  This driver can also be built as a module. If so, the module
375d6c7428fSRoman Fietze	  will be called rtc-isl12022.
376d6c7428fSRoman Fietze
37770e12337SArnaud Ebalardconfig RTC_DRV_ISL12057
37870e12337SArnaud Ebalard	select REGMAP_I2C
37970e12337SArnaud Ebalard	tristate "Intersil ISL12057"
38070e12337SArnaud Ebalard	help
38170e12337SArnaud Ebalard	  If you say yes here you get support for the Intersil ISL12057
38270e12337SArnaud Ebalard	  I2C RTC chip.
38370e12337SArnaud Ebalard
38470e12337SArnaud Ebalard	  This driver can also be built as a module. If so, the module
38570e12337SArnaud Ebalard	  will be called rtc-isl12057.
38670e12337SArnaud Ebalard
38709a21e56SAlessandro Zummoconfig RTC_DRV_X1205
38809a21e56SAlessandro Zummo	tristate "Xicor/Intersil X1205"
38909a21e56SAlessandro Zummo	help
39009a21e56SAlessandro Zummo	  If you say yes here you get support for the
39109a21e56SAlessandro Zummo	  Xicor/Intersil X1205 RTC chip.
39209a21e56SAlessandro Zummo
39309a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
39409a21e56SAlessandro Zummo	  will be called rtc-x1205.
39509a21e56SAlessandro Zummo
396f803f0d0SThierry Redingconfig RTC_DRV_PCF8523
397f803f0d0SThierry Reding	tristate "NXP PCF8523"
398f803f0d0SThierry Reding	help
399f803f0d0SThierry Reding	  If you say yes here you get support for the NXP PCF8523 RTC
400f803f0d0SThierry Reding	  chips.
401f803f0d0SThierry Reding
402f803f0d0SThierry Reding	  This driver can also be built as a module. If so, the module
403f803f0d0SThierry Reding	  will be called rtc-pcf8523.
404f803f0d0SThierry Reding
405d084885eSSoren Brinkmannconfig RTC_DRV_PCF85063
406d084885eSSoren Brinkmann	tristate "NXP PCF85063"
407d084885eSSoren Brinkmann	help
408d084885eSSoren Brinkmann	  If you say yes here you get support for the PCF85063 RTC chip
409d084885eSSoren Brinkmann
410d084885eSSoren Brinkmann	  This driver can also be built as a module. If so, the module
411d084885eSSoren Brinkmann	  will be called rtc-pcf85063.
412d084885eSSoren Brinkmann
41309a21e56SAlessandro Zummoconfig RTC_DRV_PCF8563
41409a21e56SAlessandro Zummo	tristate "Philips PCF8563/Epson RTC8564"
41509a21e56SAlessandro Zummo	help
41609a21e56SAlessandro Zummo	  If you say yes here you get support for the
41709a21e56SAlessandro Zummo	  Philips PCF8563 RTC chip. The Epson RTC8564
41809a21e56SAlessandro Zummo	  should work as well.
41909a21e56SAlessandro Zummo
42009a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
42109a21e56SAlessandro Zummo	  will be called rtc-pcf8563.
42209a21e56SAlessandro Zummo
42309a21e56SAlessandro Zummoconfig RTC_DRV_PCF8583
42409a21e56SAlessandro Zummo	tristate "Philips PCF8583"
42509a21e56SAlessandro Zummo	help
42609a21e56SAlessandro Zummo	  If you say yes here you get support for the Philips PCF8583
42709a21e56SAlessandro Zummo	  RTC chip found on Acorn RiscPCs. This driver supports the
42809a21e56SAlessandro Zummo	  platform specific method of retrieving the current year from
42909a21e56SAlessandro Zummo	  the RTC's SRAM. It will work on other platforms with the same
43009a21e56SAlessandro Zummo	  chip, but the year will probably have to be tweaked.
43109a21e56SAlessandro Zummo
43209a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
43309a21e56SAlessandro Zummo	  will be called rtc-pcf8583.
43409a21e56SAlessandro Zummo
435caaff562SAtsushi Nemotoconfig RTC_DRV_M41T80
4366b1a5235SWolfram Sang	tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible"
437caaff562SAtsushi Nemoto	help
438d3a126fcSSteven A. Falco	  If you say Y here you will get support for the ST M41T60
439d3a126fcSSteven A. Falco	  and M41T80 RTC chips series. Currently, the following chips are
440f30281f4SDaniel Glockner	  supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
4416b1a5235SWolfram Sang	  M41ST85, M41ST87, and MicroCrystal RV4162.
442caaff562SAtsushi Nemoto
443caaff562SAtsushi Nemoto	  This driver can also be built as a module. If so, the module
444caaff562SAtsushi Nemoto	  will be called rtc-m41t80.
445caaff562SAtsushi Nemoto
446617780d2SAtsushi Nemotoconfig RTC_DRV_M41T80_WDT
447d3a126fcSSteven A. Falco	bool "ST M41T65/M41T80 series RTC watchdog timer"
448617780d2SAtsushi Nemoto	depends on RTC_DRV_M41T80
449617780d2SAtsushi Nemoto	help
450617780d2SAtsushi Nemoto	  If you say Y here you will get support for the
451d3a126fcSSteven A. Falco	  watchdog timer in the ST M41T60 and M41T80 RTC chips series.
452617780d2SAtsushi Nemoto
4531ce7c83fSPiotr Ziecikconfig RTC_DRV_BQ32K
4541ce7c83fSPiotr Ziecik	tristate "TI BQ32000"
4551ce7c83fSPiotr Ziecik	help
4561ce7c83fSPiotr Ziecik	  If you say Y here you will get support for the TI
4571ce7c83fSPiotr Ziecik	  BQ32000 I2C RTC chip.
4581ce7c83fSPiotr Ziecik
4591ce7c83fSPiotr Ziecik	  This driver can also be built as a module. If so, the module
4601ce7c83fSPiotr Ziecik	  will be called rtc-bq32k.
4611ce7c83fSPiotr Ziecik
462afd8d0f9SDavid Brownellconfig RTC_DRV_DM355EVM
463afd8d0f9SDavid Brownell	tristate "TI DaVinci DM355 EVM RTC"
464afd8d0f9SDavid Brownell	depends on MFD_DM355EVM_MSP
465afd8d0f9SDavid Brownell	help
466afd8d0f9SDavid Brownell	  Supports the RTC firmware in the MSP430 on the DM355 EVM.
467afd8d0f9SDavid Brownell
4680c4a59feSTony Lindgrenconfig RTC_DRV_TWL92330
4696341e62bSChristoph Jaeger	bool "TI TWL92330/Menelaus"
470bb35fb20SJan Engelhardt	depends on MENELAUS
4710c4a59feSTony Lindgren	help
4720c4a59feSTony Lindgren	  If you say yes here you get support for the RTC on the
47301dd2fbfSMatt LaPlante	  TWL92330 "Menelaus" power management chip, used with OMAP2
4740c4a59feSTony Lindgren	  platforms. The support is integrated with the rest of
4750c4a59feSTony Lindgren	  the Menelaus driver; it's not separate module.
4760c4a59feSTony Lindgren
477f96411abSDavid Brownellconfig RTC_DRV_TWL4030
478a6b49ffdSBalaji T K	tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
4796b8029faSVenu Byravarasu	depends on TWL4030_CORE
480f96411abSDavid Brownell	help
481f96411abSDavid Brownell	  If you say yes here you get support for the RTC on the
482a6b49ffdSBalaji T K	  TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
483f96411abSDavid Brownell
484f96411abSDavid Brownell	  This driver can also be built as a module. If so, the module
485a6b49ffdSBalaji T K	  will be called rtc-twl.
486f96411abSDavid Brownell
487d084885eSSoren Brinkmannconfig RTC_DRV_PALMAS
488d084885eSSoren Brinkmann	tristate "TI Palmas RTC driver"
489d084885eSSoren Brinkmann	depends on MFD_PALMAS
490d084885eSSoren Brinkmann	help
491d084885eSSoren Brinkmann	  If you say yes here you get support for the RTC of TI PALMA series PMIC
492d084885eSSoren Brinkmann	  chips.
493d084885eSSoren Brinkmann
494d084885eSSoren Brinkmann	  This driver can also be built as a module. If so, the module
495d084885eSSoren Brinkmann	  will be called rtc-palma.
496d084885eSSoren Brinkmann
497dc59ed38SLaxman Dewanganconfig RTC_DRV_TPS6586X
498dc59ed38SLaxman Dewangan	tristate "TI TPS6586X RTC driver"
499dc59ed38SLaxman Dewangan	depends on MFD_TPS6586X
500dc59ed38SLaxman Dewangan	help
501a895d57dSMasanari Iida	  TI Power Management IC TPS6586X supports RTC functionality
502dc59ed38SLaxman Dewangan	  along with alarm. This driver supports the RTC driver for
503dc59ed38SLaxman Dewangan	  the TPS6586X RTC module.
504dc59ed38SLaxman Dewangan
5050e783980SVenu Byravarasuconfig RTC_DRV_TPS65910
5060e783980SVenu Byravarasu	tristate "TI TPS65910 RTC driver"
5070e783980SVenu Byravarasu	depends on RTC_CLASS && MFD_TPS65910
5080e783980SVenu Byravarasu	help
5090e783980SVenu Byravarasu	  If you say yes here you get support for the RTC on the
5100e783980SVenu Byravarasu	  TPS65910 chips.
5110e783980SVenu Byravarasu
5120e783980SVenu Byravarasu	  This driver can also be built as a module. If so, the module
5130e783980SVenu Byravarasu	  will be called rtc-tps65910.
5140e783980SVenu Byravarasu
51536d61824SLaxman Dewanganconfig RTC_DRV_TPS80031
51636d61824SLaxman Dewangan	tristate "TI TPS80031/TPS80032 RTC driver"
51736d61824SLaxman Dewangan	depends on MFD_TPS80031
51836d61824SLaxman Dewangan	help
519a895d57dSMasanari Iida	  TI Power Management IC TPS80031 supports RTC functionality
52036d61824SLaxman Dewangan	  along with alarm. This driver supports the RTC driver for
52136d61824SLaxman Dewangan	  the TPS80031 RTC module.
52236d61824SLaxman Dewangan
52390829c08SVenu Byravarasuconfig RTC_DRV_RC5T583
52490829c08SVenu Byravarasu	tristate "RICOH 5T583 RTC driver"
52590829c08SVenu Byravarasu	depends on MFD_RC5T583
52690829c08SVenu Byravarasu	help
52790829c08SVenu Byravarasu	  If you say yes here you get support for the RTC on the
52890829c08SVenu Byravarasu	  RICOH 5T583 chips.
52990829c08SVenu Byravarasu
53090829c08SVenu Byravarasu	  This driver can also be built as a module. If so, the module
53190829c08SVenu Byravarasu	  will be called rtc-rc5t583.
53290829c08SVenu Byravarasu
533c46288b0SByron Bradleyconfig RTC_DRV_S35390A
534c46288b0SByron Bradley	tristate "Seiko Instruments S-35390A"
535d479540dSRandy Dunlap	select BITREVERSE
536c46288b0SByron Bradley	help
537c46288b0SByron Bradley	  If you say yes here you will get support for the Seiko
538c46288b0SByron Bradley	  Instruments S-35390A.
539c46288b0SByron Bradley
540c46288b0SByron Bradley	  This driver can also be built as a module. If so the module
541c46288b0SByron Bradley	  will be called rtc-s35390a.
542c46288b0SByron Bradley
543c6d8f400SSergey Lapinconfig RTC_DRV_FM3130
544c6d8f400SSergey Lapin	tristate "Ramtron FM3130"
545c6d8f400SSergey Lapin	help
546c6d8f400SSergey Lapin	  If you say Y here you will get support for the
547c6d8f400SSergey Lapin	  Ramtron FM3130 RTC chips.
548c6d8f400SSergey Lapin	  Ramtron FM3130 is a chip with two separate devices inside,
549c6d8f400SSergey Lapin	  RTC clock and FRAM. This driver provides only RTC functionality.
550c6d8f400SSergey Lapin
551c6d8f400SSergey Lapin	  This driver can also be built as a module. If so the module
552c6d8f400SSergey Lapin	  will be called rtc-fm3130.
553c6d8f400SSergey Lapin
554ed13d89bSAkshay Bhatconfig RTC_DRV_RX8010
555ed13d89bSAkshay Bhat	tristate "Epson RX8010SJ"
556ed13d89bSAkshay Bhat	depends on I2C
557ed13d89bSAkshay Bhat	help
558ed13d89bSAkshay Bhat	  If you say yes here you get support for the Epson RX8010SJ RTC
559ed13d89bSAkshay Bhat	  chip.
560ed13d89bSAkshay Bhat
561ed13d89bSAkshay Bhat	  This driver can also be built as a module. If so, the module
562ed13d89bSAkshay Bhat	  will be called rtc-rx8010.
563ed13d89bSAkshay Bhat
564a7fa9851SMartyn Welchconfig RTC_DRV_RX8581
565a7fa9851SMartyn Welch	tristate "Epson RX-8581"
566a7fa9851SMartyn Welch	help
567a7fa9851SMartyn Welch	  If you say yes here you will get support for the Epson RX-8581.
568a7fa9851SMartyn Welch
569a7fa9851SMartyn Welch	  This driver can also be built as a module. If so the module
570a7fa9851SMartyn Welch	  will be called rtc-rx8581.
571a7fa9851SMartyn Welch
5723c2b9075SWolfgang Grandeggerconfig RTC_DRV_RX8025
5733c2b9075SWolfgang Grandegger	tristate "Epson RX-8025SA/NB"
5743c2b9075SWolfgang Grandegger	help
5753c2b9075SWolfgang Grandegger	  If you say yes here you get support for the Epson
5763c2b9075SWolfgang Grandegger	  RX-8025SA/NB RTC chips.
5773c2b9075SWolfgang Grandegger
5783c2b9075SWolfgang Grandegger	  This driver can also be built as a module. If so, the module
5793c2b9075SWolfgang Grandegger	  will be called rtc-rx8025.
5803c2b9075SWolfgang Grandegger
581ae3551f9SMike Rapoportconfig RTC_DRV_EM3027
582ae3551f9SMike Rapoport	tristate "EM Microelectronic EM3027"
583ae3551f9SMike Rapoport	help
584ae3551f9SMike Rapoport	  If you say yes here you get support for the EM
585ae3551f9SMike Rapoport	  Microelectronic EM3027 RTC chips.
586ae3551f9SMike Rapoport
587ae3551f9SMike Rapoport	  This driver can also be built as a module. If so, the module
588ae3551f9SMike Rapoport	  will be called rtc-em3027.
589ae3551f9SMike Rapoport
5901e3929efSAlexandre Belloniconfig RTC_DRV_RV8803
59134166a00SBenoît Thébaudeau	tristate "Micro Crystal RV8803, Epson RX8900"
5921e3929efSAlexandre Belloni	help
59334166a00SBenoît Thébaudeau	  If you say yes here you get support for the Micro Crystal RV8803 and
59434166a00SBenoît Thébaudeau	  Epson RX8900 RTC chips.
5951e3929efSAlexandre Belloni
5961e3929efSAlexandre Belloni	  This driver can also be built as a module. If so, the module
5971e3929efSAlexandre Belloni	  will be called rtc-rv8803.
5981e3929efSAlexandre Belloni
5995bccae6eSSangbeom Kimconfig RTC_DRV_S5M
6000c5deb1eSKrzysztof Kozlowski	tristate "Samsung S2M/S5M series"
6015bccae6eSSangbeom Kim	depends on MFD_SEC_CORE
6025bccae6eSSangbeom Kim	help
6035bccae6eSSangbeom Kim	  If you say yes here you will get support for the
6040c5deb1eSKrzysztof Kozlowski	  RTC of Samsung S2MPS14 and S5M PMIC series.
6055bccae6eSSangbeom Kim
6065bccae6eSSangbeom Kim	  This driver can also be built as a module. If so, the module
6075bccae6eSSangbeom Kim	  will be called rtc-s5m.
6085bccae6eSSangbeom Kim
609bb35fb20SJan Engelhardtendif # I2C
610bb35fb20SJan Engelhardt
61109a21e56SAlessandro Zummocomment "SPI RTC drivers"
612bb35fb20SJan Engelhardt
613bb35fb20SJan Engelhardtif SPI_MASTER
61409a21e56SAlessandro Zummo
61574d34d4bSVoss, Nikolausconfig RTC_DRV_M41T93
61674d34d4bSVoss, Nikolaus	tristate "ST M41T93"
61774d34d4bSVoss, Nikolaus	help
61874d34d4bSVoss, Nikolaus	  If you say yes here you will get support for the
61974d34d4bSVoss, Nikolaus	  ST M41T93 SPI RTC chip.
62074d34d4bSVoss, Nikolaus
62174d34d4bSVoss, Nikolaus	  This driver can also be built as a module. If so, the module
62274d34d4bSVoss, Nikolaus	  will be called rtc-m41t93.
62374d34d4bSVoss, Nikolaus
6248fc2c767SKim B. Heinoconfig RTC_DRV_M41T94
6258fc2c767SKim B. Heino	tristate "ST M41T94"
6268fc2c767SKim B. Heino	help
6278fc2c767SKim B. Heino	  If you say yes here you will get support for the
6288fc2c767SKim B. Heino	  ST M41T94 SPI RTC chip.
6298fc2c767SKim B. Heino
6308fc2c767SKim B. Heino	  This driver can also be built as a module. If so, the module
6318fc2c767SKim B. Heino	  will be called rtc-m41t94.
6328fc2c767SKim B. Heino
633d25a5ed3SSergey Yanovichconfig RTC_DRV_DS1302
634d25a5ed3SSergey Yanovich	tristate "Dallas/Maxim DS1302"
635d25a5ed3SSergey Yanovich	depends on SPI
636d25a5ed3SSergey Yanovich	help
637d25a5ed3SSergey Yanovich	  If you say yes here you get support for the Dallas DS1302 RTC chips.
638d25a5ed3SSergey Yanovich
639d25a5ed3SSergey Yanovich	  This driver can also be built as a module. If so, the module
640d25a5ed3SSergey Yanovich	  will be called rtc-ds1302.
641d25a5ed3SSergey Yanovich
64253e84b67SDavid Brownellconfig RTC_DRV_DS1305
64353e84b67SDavid Brownell	tristate "Dallas/Maxim DS1305/DS1306"
64453e84b67SDavid Brownell	help
64553e84b67SDavid Brownell	  Select this driver to get support for the Dallas/Maxim DS1305
64653e84b67SDavid Brownell	  and DS1306 real time clock chips. These support a trickle
64753e84b67SDavid Brownell	  charger, alarms, and NVRAM in addition to the clock.
64853e84b67SDavid Brownell
64953e84b67SDavid Brownell	  This driver can also be built as a module. If so, the module
65053e84b67SDavid Brownell	  will be called rtc-ds1305.
65153e84b67SDavid Brownell
6521d6316f5SRaghavendra Ganigaconfig RTC_DRV_DS1343
6530dd449b1SRaghavendra Ganiga	select REGMAP_SPI
6541d6316f5SRaghavendra Ganiga	tristate "Dallas/Maxim DS1343/DS1344"
6551d6316f5SRaghavendra Ganiga	help
6561d6316f5SRaghavendra Ganiga	  If you say yes here you get support for the
6571d6316f5SRaghavendra Ganiga	  Dallas/Maxim DS1343 and DS1344 real time clock chips.
6581d6316f5SRaghavendra Ganiga	  Support for trickle charger, alarm is provided.
6591d6316f5SRaghavendra Ganiga
6601d6316f5SRaghavendra Ganiga	  This driver can also be built as a module. If so, the module
6611d6316f5SRaghavendra Ganiga	  will be called rtc-ds1343.
6621d6316f5SRaghavendra Ganiga
663617b26a0SRaghavendra Ganigaconfig RTC_DRV_DS1347
664617b26a0SRaghavendra Ganiga	tristate "Dallas/Maxim DS1347"
665617b26a0SRaghavendra Ganiga	help
666617b26a0SRaghavendra Ganiga	  If you say yes here you get support for the
667617b26a0SRaghavendra Ganiga	  Dallas/Maxim DS1347 chips.
668617b26a0SRaghavendra Ganiga
669617b26a0SRaghavendra Ganiga	  This driver only supports the RTC feature, and not other chip
670617b26a0SRaghavendra Ganiga	  features such as alarms.
671617b26a0SRaghavendra Ganiga
672617b26a0SRaghavendra Ganiga	  This driver can also be built as a module. If so, the module
673617b26a0SRaghavendra Ganiga	  will be called rtc-ds1347.
674617b26a0SRaghavendra Ganiga
67506de1808SMark Jacksonconfig RTC_DRV_DS1390
67606de1808SMark Jackson	tristate "Dallas/Maxim DS1390/93/94"
67706de1808SMark Jackson	help
6787b9b2ef1SAlessandro Zummo	  If you say yes here you get support for the
6797b9b2ef1SAlessandro Zummo	  Dallas/Maxim DS1390/93/94 chips.
68006de1808SMark Jackson
681fa395fb8SIvan Grimaldi	  This driver supports the RTC feature and trickle charging but not
682fa395fb8SIvan Grimaldi	  other chip features such as alarms.
68306de1808SMark Jackson
68406de1808SMark Jackson	  This driver can also be built as a module. If so, the module
68506de1808SMark Jackson	  will be called rtc-ds1390.
68606de1808SMark Jackson
68706776c89SVenkat Prashanth B Uconfig RTC_DRV_MAX6916
68806776c89SVenkat Prashanth B U	tristate "Maxim MAX6916"
68906776c89SVenkat Prashanth B U	help
69006776c89SVenkat Prashanth B U	  If you say yes here you will get support for the
69106776c89SVenkat Prashanth B U	  Maxim MAX6916 SPI RTC chip.
69206776c89SVenkat Prashanth B U
69306776c89SVenkat Prashanth B U	  This driver only supports the RTC feature, and not other chip
69406776c89SVenkat Prashanth B U	  features such as alarms.
69506776c89SVenkat Prashanth B U
69606776c89SVenkat Prashanth B U	  This driver can also be built as a module. If so, the module
69706776c89SVenkat Prashanth B U	  will be called rtc-max6916.
69806776c89SVenkat Prashanth B U
6992805b969SMagnus Dammconfig RTC_DRV_R9701
7002805b969SMagnus Damm	tristate "Epson RTC-9701JE"
7012805b969SMagnus Damm	help
7022805b969SMagnus Damm	  If you say yes here you will get support for the
7032805b969SMagnus Damm	  Epson RTC-9701JE SPI RTC chip.
7042805b969SMagnus Damm
7052805b969SMagnus Damm	  This driver can also be built as a module. If so, the module
7062805b969SMagnus Damm	  will be called rtc-r9701.
7072805b969SMagnus Damm
708d084885eSSoren Brinkmannconfig RTC_DRV_RX4581
709d084885eSSoren Brinkmann	tristate "Epson RX-4581"
710d084885eSSoren Brinkmann	help
711d084885eSSoren Brinkmann	  If you say yes here you will get support for the Epson RX-4581.
712d084885eSSoren Brinkmann
713d084885eSSoren Brinkmann	  This driver can also be built as a module. If so the module
714d084885eSSoren Brinkmann	  will be called rtc-rx4581.
715d084885eSSoren Brinkmann
716d084885eSSoren Brinkmannconfig RTC_DRV_RX6110
717d084885eSSoren Brinkmann	tristate "Epson RX-6110"
718d084885eSSoren Brinkmann	select REGMAP_SPI
719d084885eSSoren Brinkmann	help
720d084885eSSoren Brinkmann	  If you say yes here you will get support for the Epson RX-6610.
721d084885eSSoren Brinkmann
722d084885eSSoren Brinkmann	  This driver can also be built as a module. If so the module
723d084885eSSoren Brinkmann	  will be called rtc-rx6110.
724d084885eSSoren Brinkmann
72509a21e56SAlessandro Zummoconfig RTC_DRV_RS5C348
72609a21e56SAlessandro Zummo	tristate "Ricoh RS5C348A/B"
72709a21e56SAlessandro Zummo	help
72809a21e56SAlessandro Zummo	  If you say yes here you get support for the
72909a21e56SAlessandro Zummo	  Ricoh RS5C348A and RS5C348B RTC chips.
73009a21e56SAlessandro Zummo
73109a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
73209a21e56SAlessandro Zummo	  will be called rtc-rs5c348.
73309a21e56SAlessandro Zummo
734d084885eSSoren Brinkmannconfig RTC_DRV_MAX6902
735d084885eSSoren Brinkmann	tristate "Maxim MAX6902"
736d084885eSSoren Brinkmann	help
737d084885eSSoren Brinkmann	  If you say yes here you will get support for the
738d084885eSSoren Brinkmann	  Maxim MAX6902 SPI RTC chip.
739d084885eSSoren Brinkmann
740d084885eSSoren Brinkmann	  This driver can also be built as a module. If so, the module
741d084885eSSoren Brinkmann	  will be called rtc-max6902.
742d084885eSSoren Brinkmann
7437f3923a1SChris Vergesconfig RTC_DRV_PCF2123
7447f3923a1SChris Verges	tristate "NXP PCF2123"
7457f3923a1SChris Verges	help
7467f3923a1SChris Verges	  If you say yes here you get support for the NXP PCF2123
7477f3923a1SChris Verges	  RTC chip.
7487f3923a1SChris Verges
7497f3923a1SChris Verges	  This driver can also be built as a module. If so, the module
7507f3923a1SChris Verges	  will be called rtc-pcf2123.
7517f3923a1SChris Verges
7521fcbe42cSJosef Gajdusekconfig RTC_DRV_MCP795
7531fcbe42cSJosef Gajdusek	tristate "Microchip MCP795"
7541fcbe42cSJosef Gajdusek	help
7551fcbe42cSJosef Gajdusek	  If you say yes here you will get support for the Microchip MCP795.
7561fcbe42cSJosef Gajdusek
7571fcbe42cSJosef Gajdusek	  This driver can also be built as a module. If so the module
7581fcbe42cSJosef Gajdusek	  will be called rtc-mcp795.
7591fcbe42cSJosef Gajdusek
760bb35fb20SJan Engelhardtendif # SPI_MASTER
761bb35fb20SJan Engelhardt
762080481f5SAkinobu Mita#
763080481f5SAkinobu Mita# Helper to resolve issues with configs that have SPI enabled but I2C
764080481f5SAkinobu Mita# modular.  See SND_SOC_I2C_AND_SPI for more information
765080481f5SAkinobu Mita#
766080481f5SAkinobu Mitaconfig RTC_I2C_AND_SPI
767080481f5SAkinobu Mita	tristate
768080481f5SAkinobu Mita	default m if I2C=m
769080481f5SAkinobu Mita	default y if I2C=y
770080481f5SAkinobu Mita	default y if SPI_MASTER=y
771080481f5SAkinobu Mita	select REGMAP_I2C if I2C
772080481f5SAkinobu Mita	select REGMAP_SPI if SPI_MASTER
773080481f5SAkinobu Mita
774080481f5SAkinobu Mitacomment "SPI and I2C RTC drivers"
775080481f5SAkinobu Mita
776080481f5SAkinobu Mitaconfig RTC_DRV_DS3232
777080481f5SAkinobu Mita	tristate "Dallas/Maxim DS3232/DS3234"
778080481f5SAkinobu Mita	depends on RTC_I2C_AND_SPI
779080481f5SAkinobu Mita	help
780080481f5SAkinobu Mita	  If you say yes here you get support for Dallas Semiconductor
781080481f5SAkinobu Mita	  DS3232 and DS3234 real-time clock chips. If an interrupt is associated
782080481f5SAkinobu Mita	  with the device, the alarm functionality is supported.
783080481f5SAkinobu Mita
784080481f5SAkinobu Mita	  This driver can also be built as a module.  If so, the module
785080481f5SAkinobu Mita	  will be called rtc-ds3232.
786080481f5SAkinobu Mita
7879408ec1aSAkinobu Mitaconfig RTC_DRV_PCF2127
7889408ec1aSAkinobu Mita	tristate "NXP PCF2127"
7899408ec1aSAkinobu Mita	depends on RTC_I2C_AND_SPI
7909408ec1aSAkinobu Mita	help
7919408ec1aSAkinobu Mita	  If you say yes here you get support for the NXP PCF2127/29 RTC
7929408ec1aSAkinobu Mita	  chips.
7939408ec1aSAkinobu Mita
7949408ec1aSAkinobu Mita	  This driver can also be built as a module. If so, the module
7959408ec1aSAkinobu Mita	  will be called rtc-pcf2127.
7969408ec1aSAkinobu Mita
797c2a1c145SMylène Josserandconfig RTC_DRV_RV3029C2
798c2a1c145SMylène Josserand	tristate "Micro Crystal RV3029/3049"
799c2a1c145SMylène Josserand	depends on RTC_I2C_AND_SPI
800c2a1c145SMylène Josserand	help
801c2a1c145SMylène Josserand	  If you say yes here you get support for the Micro Crystal
802c2a1c145SMylène Josserand	  RV3029 and RV3049 RTC chips.
803c2a1c145SMylène Josserand
804c2a1c145SMylène Josserand	  This driver can also be built as a module. If so, the module
805c2a1c145SMylène Josserand	  will be called rtc-rv3029c2.
806c2a1c145SMylène Josserand
807c2a1c145SMylène Josserandconfig RTC_DRV_RV3029_HWMON
808c2a1c145SMylène Josserand	bool "HWMON support for RV3029/3049"
809c2a1c145SMylène Josserand	depends on RTC_DRV_RV3029C2 && HWMON
810c2a1c145SMylène Josserand	depends on !(RTC_DRV_RV3029C2=y && HWMON=m)
811c2a1c145SMylène Josserand	default y
812c2a1c145SMylène Josserand	help
813c2a1c145SMylène Josserand	  Say Y here if you want to expose temperature sensor data on
814c2a1c145SMylène Josserand	  rtc-rv3029.
815c2a1c145SMylène Josserand
81609a21e56SAlessandro Zummocomment "Platform RTC drivers"
8170c86edc0SAlessandro Zummo
8187be2c7c9SDavid Brownell# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
8197be2c7c9SDavid Brownell# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
8207be2c7c9SDavid Brownell# global rtc_lock ... it's not yet just another platform_device.
8217be2c7c9SDavid Brownell
8227be2c7c9SDavid Brownellconfig RTC_DRV_CMOS
82309a21e56SAlessandro Zummo	tristate "PC-style 'CMOS'"
8245ee98ab3SArnd Bergmann	depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 || MN10300
825c7500900SDavid Brownell	default y if X86
826d6faca40SArnd Bergmann	select RTC_MC146818_LIB
8277be2c7c9SDavid Brownell	help
8287be2c7c9SDavid Brownell	  Say "yes" here to get direct support for the real time clock
8297be2c7c9SDavid Brownell	  found in every PC or ACPI-based system, and some other boards.
8307be2c7c9SDavid Brownell	  Specifically the original MC146818, compatibles like those in
8317be2c7c9SDavid Brownell	  PC south bridges, the DS12887 or M48T86, some multifunction
8327be2c7c9SDavid Brownell	  or LPC bus chips, and so on.
8337be2c7c9SDavid Brownell
8347be2c7c9SDavid Brownell	  Your system will need to define the platform device used by
8357be2c7c9SDavid Brownell	  this driver, otherwise it won't be accessible. This means
8367be2c7c9SDavid Brownell	  you can safely enable this driver if you don't know whether
8377be2c7c9SDavid Brownell	  or not your board has this kind of hardware.
8387be2c7c9SDavid Brownell
8397be2c7c9SDavid Brownell	  This driver can also be built as a module. If so, the module
8407be2c7c9SDavid Brownell	  will be called rtc-cmos.
8417be2c7c9SDavid Brownell
84285d0b3a5SRichard Hendersonconfig RTC_DRV_ALPHA
84385d0b3a5SRichard Henderson	bool "Alpha PC-style CMOS"
84485d0b3a5SRichard Henderson	depends on ALPHA
845d6faca40SArnd Bergmann	select RTC_MC146818_LIB
84685d0b3a5SRichard Henderson	default y
84785d0b3a5SRichard Henderson	help
84885d0b3a5SRichard Henderson	  Direct support for the real-time clock found on every Alpha
84985d0b3a5SRichard Henderson	  system, specifically MC146818 compatibles.  If in doubt, say Y.
85085d0b3a5SRichard Henderson
8510146f261SFeng Tangconfig RTC_DRV_VRTC
852933b9463SAlan Cox	tristate "Virtual RTC for Intel MID platforms"
853933b9463SAlan Cox	depends on X86_INTEL_MID
854933b9463SAlan Cox	default y if X86_INTEL_MID
8550146f261SFeng Tang
8560146f261SFeng Tang	help
8570146f261SFeng Tang	Say "yes" here to get direct support for the real time clock
8580146f261SFeng Tang	found on Moorestown platforms. The VRTC is a emulated RTC that
8590146f261SFeng Tang	derives its clock source from a real RTC in the PMIC. The MC146818
8600146f261SFeng Tang	style programming interface is mostly conserved, but any
8610146f261SFeng Tang	updates are done via IPC calls to the system controller FW.
8620146f261SFeng Tang
863537739deSThomas Bogendoerferconfig RTC_DRV_DS1216
864537739deSThomas Bogendoerfer	tristate "Dallas DS1216"
865bb35fb20SJan Engelhardt	depends on SNI_RM
866537739deSThomas Bogendoerfer	help
867537739deSThomas Bogendoerfer	  If you say yes here you get support for the Dallas DS1216 RTC chips.
868537739deSThomas Bogendoerfer
8695f119f29SThomas Bogendoerferconfig RTC_DRV_DS1286
8705f119f29SThomas Bogendoerfer	tristate "Dallas DS1286"
871706b632dSChen Gang	depends on HAS_IOMEM
8725f119f29SThomas Bogendoerfer	help
8735f119f29SThomas Bogendoerfer	  If you say yes here you get support for the Dallas DS1286 RTC chips.
8745f119f29SThomas Bogendoerfer
8758f26795aSAndrew Sharpconfig RTC_DRV_DS1511
8768f26795aSAndrew Sharp	tristate "Dallas DS1511"
877706b632dSChen Gang	depends on HAS_IOMEM
8788f26795aSAndrew Sharp	help
8798f26795aSAndrew Sharp	  If you say yes here you get support for the
8808f26795aSAndrew Sharp	  Dallas DS1511 timekeeping/watchdog chip.
8818f26795aSAndrew Sharp
8828f26795aSAndrew Sharp	  This driver can also be built as a module. If so, the module
8838f26795aSAndrew Sharp	  will be called rtc-ds1511.
8848f26795aSAndrew Sharp
8859bf5b4f5SAtsushi Nemotoconfig RTC_DRV_DS1553
88609b6bdb3SAlessandro Zummo	tristate "Maxim/Dallas DS1553"
887706b632dSChen Gang	depends on HAS_IOMEM
8889bf5b4f5SAtsushi Nemoto	help
8899bf5b4f5SAtsushi Nemoto	  If you say yes here you get support for the
89009b6bdb3SAlessandro Zummo	  Maxim/Dallas DS1553 timekeeping chip.
8919bf5b4f5SAtsushi Nemoto
8929bf5b4f5SAtsushi Nemoto	  This driver can also be built as a module. If so, the module
8939bf5b4f5SAtsushi Nemoto	  will be called rtc-ds1553.
8949bf5b4f5SAtsushi Nemoto
895aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS1685_FAMILY
896aaaf5fbfSJoshua Kinard	tristate "Dallas/Maxim DS1685 Family"
897aaaf5fbfSJoshua Kinard	help
898aaaf5fbfSJoshua Kinard	  If you say yes here you get support for the Dallas/Maxim DS1685
899aaaf5fbfSJoshua Kinard	  family of real time chips.  This family includes the DS1685/DS1687,
900aaaf5fbfSJoshua Kinard	  DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and
901aaaf5fbfSJoshua Kinard	  DS17885/DS17887 chips.
902aaaf5fbfSJoshua Kinard
903aaaf5fbfSJoshua Kinard	  This driver can also be built as a module. If so, the module
904aaaf5fbfSJoshua Kinard	  will be called rtc-ds1685.
905aaaf5fbfSJoshua Kinard
906aaaf5fbfSJoshua Kinardchoice
907aaaf5fbfSJoshua Kinard	prompt "Subtype"
908aaaf5fbfSJoshua Kinard	depends on RTC_DRV_DS1685_FAMILY
909aaaf5fbfSJoshua Kinard	default RTC_DRV_DS1685
910aaaf5fbfSJoshua Kinard
911aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS1685
912aaaf5fbfSJoshua Kinard	bool "DS1685/DS1687"
913aaaf5fbfSJoshua Kinard	help
914aaaf5fbfSJoshua Kinard	  This enables support for the Dallas/Maxim DS1685/DS1687 real time
915aaaf5fbfSJoshua Kinard	  clock chip.
916aaaf5fbfSJoshua Kinard
917aaaf5fbfSJoshua Kinard	  This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30)
918aaaf5fbfSJoshua Kinard	  systems, as well as EPPC-405-UC modules by electronic system design
919aaaf5fbfSJoshua Kinard	  GmbH.
920aaaf5fbfSJoshua Kinard
921aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS1689
922aaaf5fbfSJoshua Kinard	bool "DS1689/DS1693"
923aaaf5fbfSJoshua Kinard	help
924aaaf5fbfSJoshua Kinard	  This enables support for the Dallas/Maxim DS1689/DS1693 real time
925aaaf5fbfSJoshua Kinard	  clock chip.
926aaaf5fbfSJoshua Kinard
927aaaf5fbfSJoshua Kinard	  This is an older RTC chip, supplanted by the DS1685/DS1687 above,
928aaaf5fbfSJoshua Kinard	  which supports a few minor features such as Vcc, Vbat, and Power
929aaaf5fbfSJoshua Kinard	  Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
930aaaf5fbfSJoshua Kinard
931aaaf5fbfSJoshua Kinard	  It also works for the even older DS1688/DS1691 RTC chips, which are
932aaaf5fbfSJoshua Kinard	  virtually the same and carry the same model number.  Both chips
933aaaf5fbfSJoshua Kinard	  have 114 bytes of user NVRAM.
934aaaf5fbfSJoshua Kinard
935aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS17285
936aaaf5fbfSJoshua Kinard	bool "DS17285/DS17287"
937aaaf5fbfSJoshua Kinard	help
938aaaf5fbfSJoshua Kinard	  This enables support for the Dallas/Maxim DS17285/DS17287 real time
939aaaf5fbfSJoshua Kinard	  clock chip.
940aaaf5fbfSJoshua Kinard
941aaaf5fbfSJoshua Kinard	  This chip features 2kb of extended NV-SRAM.  It may possibly be
942aaaf5fbfSJoshua Kinard	  found in some SGI O2 systems (rare).
943aaaf5fbfSJoshua Kinard
944aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS17485
945aaaf5fbfSJoshua Kinard	bool "DS17485/DS17487"
946aaaf5fbfSJoshua Kinard	help
947aaaf5fbfSJoshua Kinard	  This enables support for the Dallas/Maxim DS17485/DS17487 real time
948aaaf5fbfSJoshua Kinard	  clock chip.
949aaaf5fbfSJoshua Kinard
950aaaf5fbfSJoshua Kinard	  This chip features 4kb of extended NV-SRAM.
951aaaf5fbfSJoshua Kinard
952aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS17885
953aaaf5fbfSJoshua Kinard	bool "DS17885/DS17887"
954aaaf5fbfSJoshua Kinard	help
955aaaf5fbfSJoshua Kinard	  This enables support for the Dallas/Maxim DS17885/DS17887 real time
956aaaf5fbfSJoshua Kinard	  clock chip.
957aaaf5fbfSJoshua Kinard
958aaaf5fbfSJoshua Kinard	  This chip features 8kb of extended NV-SRAM.
959aaaf5fbfSJoshua Kinard
960aaaf5fbfSJoshua Kinardendchoice
961aaaf5fbfSJoshua Kinard
962aaaf5fbfSJoshua Kinardconfig RTC_DS1685_PROC_REGS
963aaaf5fbfSJoshua Kinard	bool "Display register values in /proc"
964aaaf5fbfSJoshua Kinard	depends on RTC_DRV_DS1685_FAMILY && PROC_FS
965aaaf5fbfSJoshua Kinard	help
966aaaf5fbfSJoshua Kinard	  Enable this to display a readout of all of the RTC registers in
967aaaf5fbfSJoshua Kinard	  /proc/drivers/rtc.  Keep in mind that this can potentially lead
968aaaf5fbfSJoshua Kinard	  to lost interrupts, as reading Control Register C will clear
969aaaf5fbfSJoshua Kinard	  all pending IRQ flags.
970aaaf5fbfSJoshua Kinard
971aaaf5fbfSJoshua Kinard	  Unless you are debugging this driver, choose N.
972aaaf5fbfSJoshua Kinard
973aaaf5fbfSJoshua Kinardconfig RTC_DS1685_SYSFS_REGS
974aaaf5fbfSJoshua Kinard	bool "SysFS access to RTC register bits"
975aaaf5fbfSJoshua Kinard	depends on RTC_DRV_DS1685_FAMILY && SYSFS
976aaaf5fbfSJoshua Kinard	help
977aaaf5fbfSJoshua Kinard	  Enable this to provide access to the RTC control register bits
978aaaf5fbfSJoshua Kinard	  in /sys.  Some of the bits are read-write, others are read-only.
979aaaf5fbfSJoshua Kinard
980aaaf5fbfSJoshua Kinard	  Keep in mind that reading Control C's bits automatically clears
981aaaf5fbfSJoshua Kinard	  all pending IRQ flags - this can cause lost interrupts.
982aaaf5fbfSJoshua Kinard
983aaaf5fbfSJoshua Kinard	  If you know that you need access to these bits, choose Y, Else N.
984aaaf5fbfSJoshua Kinard
98509b6bdb3SAlessandro Zummoconfig RTC_DRV_DS1742
98609b6bdb3SAlessandro Zummo	tristate "Maxim/Dallas DS1742/1743"
987706b632dSChen Gang	depends on HAS_IOMEM
98809b6bdb3SAlessandro Zummo	help
98909b6bdb3SAlessandro Zummo	  If you say yes here you get support for the
99009b6bdb3SAlessandro Zummo	  Maxim/Dallas DS1742/1743 timekeeping chip.
99109b6bdb3SAlessandro Zummo
99209b6bdb3SAlessandro Zummo	  This driver can also be built as a module. If so, the module
99309b6bdb3SAlessandro Zummo	  will be called rtc-ds1742.
99409b6bdb3SAlessandro Zummo
995ad0200f7SJean Delvareconfig RTC_DRV_DS2404
996ad0200f7SJean Delvare	tristate "Maxim/Dallas DS2404"
997ad0200f7SJean Delvare	help
998ad0200f7SJean Delvare	  If you say yes here you get support for the
999ad0200f7SJean Delvare	  Dallas DS2404 RTC chip.
1000ad0200f7SJean Delvare
1001ad0200f7SJean Delvare	  This driver can also be built as a module. If so, the module
1002ad0200f7SJean Delvare	  will be called rtc-ds2404.
1003ad0200f7SJean Delvare
1004fef931ffSAshish Jangamconfig RTC_DRV_DA9052
1005fef931ffSAshish Jangam	tristate "Dialog DA9052/DA9053 RTC"
1006fef931ffSAshish Jangam	depends on PMIC_DA9052
1007fef931ffSAshish Jangam	help
1008fef931ffSAshish Jangam	  Say y here to support the RTC driver for Dialog Semiconductor
1009fef931ffSAshish Jangam	  DA9052-BC and DA9053-AA/Bx PMICs.
1010fef931ffSAshish Jangam
10116920d996SAshish Jangamconfig RTC_DRV_DA9055
10126920d996SAshish Jangam	tristate "Dialog Semiconductor DA9055 RTC"
10136920d996SAshish Jangam	depends on MFD_DA9055
10146920d996SAshish Jangam	help
10156920d996SAshish Jangam	  If you say yes here you will get support for the
10166920d996SAshish Jangam	  RTC of the Dialog DA9055 PMIC.
10176920d996SAshish Jangam
10186920d996SAshish Jangam	  This driver can also be built as a module. If so, the module
10196920d996SAshish Jangam	  will be called rtc-da9055
10206920d996SAshish Jangam
1021c2a57550SOpensource [Steve Twiss]config RTC_DRV_DA9063
102280ca3277SS Twiss	tristate "Dialog Semiconductor DA9063/DA9062 RTC"
102380ca3277SS Twiss	depends on MFD_DA9063 || MFD_DA9062
1024c2a57550SOpensource [Steve Twiss]	help
1025c2a57550SOpensource [Steve Twiss]	  If you say yes here you will get support for the RTC subsystem
102680ca3277SS Twiss	  for the Dialog Semiconductor PMIC chips DA9063 and DA9062.
1027c2a57550SOpensource [Steve Twiss]
1028c2a57550SOpensource [Steve Twiss]	  This driver can also be built as a module. If so, the module
1029c2a57550SOpensource [Steve Twiss]	  will be called "rtc-da9063".
1030c2a57550SOpensource [Steve Twiss]
10315e3fd9e5Sdann frazierconfig RTC_DRV_EFI
10325e3fd9e5Sdann frazier	tristate "EFI RTC"
10337efe6659SMatt Fleming	depends on EFI && !X86
10345e3fd9e5Sdann frazier	help
10355e3fd9e5Sdann frazier	  If you say yes here you will get support for the EFI
10365e3fd9e5Sdann frazier	  Real Time Clock.
10375e3fd9e5Sdann frazier
10385e3fd9e5Sdann frazier	  This driver can also be built as a module. If so, the module
10395e3fd9e5Sdann frazier	  will be called rtc-efi.
10405e3fd9e5Sdann frazier
104102964115SThomas Hommelconfig RTC_DRV_STK17TA8
104202964115SThomas Hommel	tristate "Simtek STK17TA8"
1043706b632dSChen Gang	depends on HAS_IOMEM
104402964115SThomas Hommel	help
104502964115SThomas Hommel	  If you say yes here you get support for the
104602964115SThomas Hommel	  Simtek STK17TA8 timekeeping chip.
104702964115SThomas Hommel
104802964115SThomas Hommel	  This driver can also be built as a module. If so, the module
104902964115SThomas Hommel	  will be called rtc-stk17ta8.
105002964115SThomas Hommel
105109a21e56SAlessandro Zummoconfig RTC_DRV_M48T86
105209a21e56SAlessandro Zummo	tristate "ST M48T86/Dallas DS12887"
105309a21e56SAlessandro Zummo	help
105409a21e56SAlessandro Zummo	  If you say Y here you will get support for the
105509a21e56SAlessandro Zummo	  ST M48T86 and Dallas DS12887 RTC chips.
105609a21e56SAlessandro Zummo
105709a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
105809a21e56SAlessandro Zummo	  will be called rtc-m48t86.
105909a21e56SAlessandro Zummo
1060d1dbd82eSThomas Bogendoerferconfig RTC_DRV_M48T35
1061d1dbd82eSThomas Bogendoerfer	tristate "ST M48T35"
1062706b632dSChen Gang	depends on HAS_IOMEM
1063d1dbd82eSThomas Bogendoerfer	help
1064d1dbd82eSThomas Bogendoerfer	  If you say Y here you will get support for the
1065d1dbd82eSThomas Bogendoerfer	  ST M48T35 RTC chip.
1066d1dbd82eSThomas Bogendoerfer
1067d1dbd82eSThomas Bogendoerfer	  This driver can also be built as a module, if so, the module
1068d1dbd82eSThomas Bogendoerfer	  will be called "rtc-m48t35".
1069d1dbd82eSThomas Bogendoerfer
10702e774c7cSMark Zhanconfig RTC_DRV_M48T59
107194fe7424SKrzysztof Helt	tristate "ST M48T59/M48T08/M48T02"
1072706b632dSChen Gang	depends on HAS_IOMEM
10732e774c7cSMark Zhan	help
10742e774c7cSMark Zhan	  If you say Y here you will get support for the
107594fe7424SKrzysztof Helt	  ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
107694fe7424SKrzysztof Helt
107794fe7424SKrzysztof Helt	  These chips are usually found in Sun SPARC and UltraSPARC
107894fe7424SKrzysztof Helt	  workstations.
10792e774c7cSMark Zhan
10802e774c7cSMark Zhan	  This driver can also be built as a module, if so, the module
10812e774c7cSMark Zhan	  will be called "rtc-m48t59".
10822e774c7cSMark Zhan
10834f9b9bbaSGeert Uytterhoevenconfig RTC_DRV_MSM6242
10844f9b9bbaSGeert Uytterhoeven	tristate "Oki MSM6242"
1085706b632dSChen Gang	depends on HAS_IOMEM
10864f9b9bbaSGeert Uytterhoeven	help
10874f9b9bbaSGeert Uytterhoeven	  If you say yes here you get support for the Oki MSM6242
10884f9b9bbaSGeert Uytterhoeven	  timekeeping chip. It is used in some Amiga models (e.g. A2000).
10894f9b9bbaSGeert Uytterhoeven
10904f9b9bbaSGeert Uytterhoeven	  This driver can also be built as a module. If so, the module
10914f9b9bbaSGeert Uytterhoeven	  will be called rtc-msm6242.
10924f9b9bbaSGeert Uytterhoeven
1093cca4c231SDavid S. Millerconfig RTC_DRV_BQ4802
1094cca4c231SDavid S. Miller	tristate "TI BQ4802"
1095706b632dSChen Gang	depends on HAS_IOMEM
1096cca4c231SDavid S. Miller	help
1097cca4c231SDavid S. Miller	  If you say Y here you will get support for the TI
1098cca4c231SDavid S. Miller	  BQ4802 RTC chip.
1099cca4c231SDavid S. Miller
1100cca4c231SDavid S. Miller	  This driver can also be built as a module. If so, the module
1101cca4c231SDavid S. Miller	  will be called rtc-bq4802.
1102cca4c231SDavid S. Miller
11034f672ce2SGeert Uytterhoevenconfig RTC_DRV_RP5C01
11044f672ce2SGeert Uytterhoeven	tristate "Ricoh RP5C01"
1105706b632dSChen Gang	depends on HAS_IOMEM
11064f672ce2SGeert Uytterhoeven	help
11074f672ce2SGeert Uytterhoeven	  If you say yes here you get support for the Ricoh RP5C01
11084f672ce2SGeert Uytterhoeven	  timekeeping chip. It is used in some Amiga models (e.g. A3000
11094f672ce2SGeert Uytterhoeven	  and A4000).
11104f672ce2SGeert Uytterhoeven
11114f672ce2SGeert Uytterhoeven	  This driver can also be built as a module. If so, the module
11124f672ce2SGeert Uytterhoeven	  will be called rtc-rp5c01.
11134f672ce2SGeert Uytterhoeven
111409a21e56SAlessandro Zummoconfig RTC_DRV_V3020
111509a21e56SAlessandro Zummo	tristate "EM Microelectronic V3020"
111609a21e56SAlessandro Zummo	help
111709a21e56SAlessandro Zummo	  If you say yes here you will get support for the
111809a21e56SAlessandro Zummo	  EM Microelectronic v3020 RTC chip.
111909a21e56SAlessandro Zummo
112009a21e56SAlessandro Zummo	  This driver can also be built as a module. If so, the module
112109a21e56SAlessandro Zummo	  will be called rtc-v3020.
112209a21e56SAlessandro Zummo
112335c86bf6SMark Brownconfig RTC_DRV_WM831X
112435c86bf6SMark Brown	tristate "Wolfson Microelectronics WM831x RTC"
112535c86bf6SMark Brown	depends on MFD_WM831X
112635c86bf6SMark Brown	help
112735c86bf6SMark Brown	  If you say yes here you will get support for the RTC subsystem
112835c86bf6SMark Brown	  of the Wolfson Microelectronics WM831X series PMICs.
112935c86bf6SMark Brown
113035c86bf6SMark Brown	  This driver can also be built as a module. If so, the module
113135c86bf6SMark Brown	  will be called "rtc-wm831x".
113235c86bf6SMark Brown
1133077eaf5bSMark Brownconfig RTC_DRV_WM8350
1134077eaf5bSMark Brown	tristate "Wolfson Microelectronics WM8350 RTC"
1135077eaf5bSMark Brown	depends on MFD_WM8350
1136077eaf5bSMark Brown	help
1137077eaf5bSMark Brown	  If you say yes here you will get support for the RTC subsystem
1138077eaf5bSMark Brown	  of the Wolfson Microelectronics WM8350.
1139077eaf5bSMark Brown
1140077eaf5bSMark Brown	  This driver can also be built as a module. If so, the module
1141077eaf5bSMark Brown	  will be called "rtc-wm8350".
1142077eaf5bSMark Brown
11430942a71eSRajeev Kumarconfig RTC_DRV_SPEAR
11440942a71eSRajeev Kumar	tristate "SPEAR ST RTC"
11457a587eaeSAlexandre Belloni	depends on PLAT_SPEAR || COMPILE_TEST
11460942a71eSRajeev Kumar	default y
11470942a71eSRajeev Kumar	help
11480942a71eSRajeev Kumar	 If you say Y here you will get support for the RTC found on
11490942a71eSRajeev Kumar	 spear
11500942a71eSRajeev Kumar
1151eae854b2SBalaji Raoconfig RTC_DRV_PCF50633
1152eae854b2SBalaji Rao	depends on MFD_PCF50633
1153eae854b2SBalaji Rao	tristate "NXP PCF50633 RTC"
1154eae854b2SBalaji Rao	help
1155eae854b2SBalaji Rao	  If you say yes here you get support for the RTC subsystem of the
1156eae854b2SBalaji Rao	  NXP PCF50633 used in embedded systems.
1157eae854b2SBalaji Rao
1158bd207cfbSLinus Walleijconfig RTC_DRV_AB3100
1159bd207cfbSLinus Walleij	tristate "ST-Ericsson AB3100 RTC"
1160bd207cfbSLinus Walleij	depends on AB3100_CORE
1161bd207cfbSLinus Walleij	default y if AB3100_CORE
1162bd207cfbSLinus Walleij	help
1163bd207cfbSLinus Walleij	  Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
1164bd207cfbSLinus Walleij	  support. This chip contains a battery- and capacitor-backed RTC.
1165bd207cfbSLinus Walleij
11660af62f4dSVirupax Sadashivpetimathconfig RTC_DRV_AB8500
11670af62f4dSVirupax Sadashivpetimath	tristate "ST-Ericsson AB8500 RTC"
11680af62f4dSVirupax Sadashivpetimath	depends on AB8500_CORE
1169651fb480SUlf Hansson	select RTC_INTF_DEV
1170dc43d4a2SRamesh Chandrasekaran	select RTC_INTF_DEV_UIE_EMUL
11710af62f4dSVirupax Sadashivpetimath	help
11720af62f4dSVirupax Sadashivpetimath	  Select this to enable the ST-Ericsson AB8500 power management IC RTC
11730af62f4dSVirupax Sadashivpetimath	  support. This chip contains a battery- and capacitor-backed RTC.
11740af62f4dSVirupax Sadashivpetimath
1175afd49a7eSWan ZongShunconfig RTC_DRV_NUC900
1176afd49a7eSWan ZongShun	tristate "NUC910/NUC920 RTC driver"
11777a587eaeSAlexandre Belloni	depends on ARCH_W90X900 || COMPILE_TEST
1178afd49a7eSWan ZongShun	help
1179afd49a7eSWan ZongShun	  If you say yes here you get support for the RTC subsystem of the
1180afd49a7eSWan ZongShun	  NUC910/NUC920 used in embedded systems.
1181bd207cfbSLinus Walleij
118216b1d26eSNeelesh Guptaconfig RTC_DRV_OPAL
118316b1d26eSNeelesh Gupta	tristate "IBM OPAL RTC driver"
118416b1d26eSNeelesh Gupta	depends on PPC_POWERNV
118516b1d26eSNeelesh Gupta	default y
118616b1d26eSNeelesh Gupta	help
118716b1d26eSNeelesh Gupta	  If you say yes here you get support for the PowerNV platform RTC
118816b1d26eSNeelesh Gupta	  driver based on OPAL interfaces.
118916b1d26eSNeelesh Gupta
119016b1d26eSNeelesh Gupta	  This driver can also be built as a module. If so, the module
119116b1d26eSNeelesh Gupta	  will be called rtc-opal.
119216b1d26eSNeelesh Gupta
119311143c19SSuneel Garapaticonfig RTC_DRV_ZYNQMP
119411143c19SSuneel Garapati	tristate "Xilinx Zynq Ultrascale+ MPSoC RTC"
119511143c19SSuneel Garapati	depends on OF
119611143c19SSuneel Garapati	help
119711143c19SSuneel Garapati	  If you say yes here you get support for the RTC controller found on
119811143c19SSuneel Garapati	  Xilinx Zynq Ultrascale+ MPSoC.
119911143c19SSuneel Garapati
120009a21e56SAlessandro Zummocomment "on-CPU RTC drivers"
120109a21e56SAlessandro Zummo
1202125e550fSOleksij Rempelconfig RTC_DRV_ASM9260
1203125e550fSOleksij Rempel	tristate "Alphascale asm9260 RTC"
1204125e550fSOleksij Rempel	depends on MACH_ASM9260
1205125e550fSOleksij Rempel	help
1206125e550fSOleksij Rempel	  If you say yes here you get support for the RTC on the
1207125e550fSOleksij Rempel	  Alphascale asm9260 SoC.
1208125e550fSOleksij Rempel
1209125e550fSOleksij Rempel	  This driver can also be built as a module. If so, the module
1210125e550fSOleksij Rempel	  will be called rtc-asm9260.
1211125e550fSOleksij Rempel
12128ecf6c54SMiguel Aguilarconfig RTC_DRV_DAVINCI
12138ecf6c54SMiguel Aguilar	tristate "TI DaVinci RTC"
12147a587eaeSAlexandre Belloni	depends on ARCH_DAVINCI_DM365 || COMPILE_TEST
12158ecf6c54SMiguel Aguilar	help
12168ecf6c54SMiguel Aguilar	  If you say yes here you get support for the RTC on the
12178ecf6c54SMiguel Aguilar	  DaVinci platforms (DM365).
12188ecf6c54SMiguel Aguilar
12198ecf6c54SMiguel Aguilar	  This driver can also be built as a module. If so, the module
12208ecf6c54SMiguel Aguilar	  will be called rtc-davinci.
12218ecf6c54SMiguel Aguilar
1222ba172208SBaruch Siachconfig RTC_DRV_DIGICOLOR
1223ba172208SBaruch Siach	tristate "Conexant Digicolor RTC"
12247a587eaeSAlexandre Belloni	depends on ARCH_DIGICOLOR || COMPILE_TEST
1225ba172208SBaruch Siach	help
1226ba172208SBaruch Siach	  If you say yes here you get support for the RTC on Conexant
1227ba172208SBaruch Siach	  Digicolor platforms. This currently includes the CX92755 SoC.
1228ba172208SBaruch Siach
1229ba172208SBaruch Siach	  This driver can also be built as a module. If so, the module
1230ba172208SBaruch Siach	  will be called rtc-digicolor.
1231ba172208SBaruch Siach
1232b224b9acSFabio Estevamconfig RTC_DRV_IMXDI
1233b224b9acSFabio Estevam	tristate "Freescale IMX DryIce Real Time Clock"
1234ef216ad0SRoland Stigge	depends on ARCH_MXC
1235b224b9acSFabio Estevam	help
1236b224b9acSFabio Estevam	   Support for Freescale IMX DryIce RTC
1237b224b9acSFabio Estevam
1238b224b9acSFabio Estevam	   This driver can also be built as a module, if so, the module
1239b224b9acSFabio Estevam	   will be called "rtc-imxdi".
1240b224b9acSFabio Estevam
1241db68b189SDavid Brownellconfig RTC_DRV_OMAP
12428608976eSLokesh Vutla	tristate "TI OMAP Real Time Clock"
12437a587eaeSAlexandre Belloni	depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST
1244db68b189SDavid Brownell	help
1245427af9a6SAfzal Mohammed	  Say "yes" here to support the on chip real time clock
12468608976eSLokesh Vutla	  present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
1247427af9a6SAfzal Mohammed
1248427af9a6SAfzal Mohammed	  This driver can also be built as a module, if so, module
1249427af9a6SAfzal Mohammed	  will be called rtc-omap.
1250db68b189SDavid Brownell
125116f4efe7SAtul Dahiyaconfig HAVE_S3C_RTC
125216f4efe7SAtul Dahiya	bool
125316f4efe7SAtul Dahiya	help
125416f4efe7SAtul Dahiya	  This will include RTC support for Samsung SoCs. If
125516f4efe7SAtul Dahiya	  you want to include RTC support for any machine, kindly
125616f4efe7SAtul Dahiya	  select this in the respective mach-XXXX/Kconfig file.
125716f4efe7SAtul Dahiya
12581add6781SBen Dooksconfig RTC_DRV_S3C
12591add6781SBen Dooks	tristate "Samsung S3C series SoC RTC"
12607a587eaeSAlexandre Belloni	depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST
12611add6781SBen Dooks	help
12621add6781SBen Dooks	  RTC (Realtime Clock) driver for the clock inbuilt into the
12631add6781SBen Dooks	  Samsung S3C24XX series of SoCs. This can provide periodic
12641add6781SBen Dooks	  interrupt rates from 1Hz to 64Hz for user programs, and
12651add6781SBen Dooks	  wakeup from Alarm.
12661add6781SBen Dooks
12671add6781SBen Dooks	  The driver currently supports the common features on all the
12681add6781SBen Dooks	  S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
12691add6781SBen Dooks	  and S3C2442.
12701add6781SBen Dooks
12711add6781SBen Dooks	  This driver can also be build as a module. If so, the module
12721add6781SBen Dooks	  will be called rtc-s3c.
12731add6781SBen Dooks
1274fd507e2fSAlessandro Zummoconfig RTC_DRV_EP93XX
1275fd507e2fSAlessandro Zummo	tristate "Cirrus Logic EP93XX"
12767a587eaeSAlexandre Belloni	depends on ARCH_EP93XX || COMPILE_TEST
1277fd507e2fSAlessandro Zummo	help
1278fd507e2fSAlessandro Zummo	  If you say yes here you get support for the
1279fd507e2fSAlessandro Zummo	  RTC embedded in the Cirrus Logic EP93XX processors.
1280fd507e2fSAlessandro Zummo
1281fd507e2fSAlessandro Zummo	  This driver can also be built as a module. If so, the module
1282fd507e2fSAlessandro Zummo	  will be called rtc-ep93xx.
1283fd507e2fSAlessandro Zummo
1284e842f1c8SRichard Purdieconfig RTC_DRV_SA1100
12853888c090SHaojian Zhuang	tristate "SA11x0/PXA2xx/PXA910"
12863888c090SHaojian Zhuang	depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
1287e842f1c8SRichard Purdie	help
1288e842f1c8SRichard Purdie	  If you say Y here you will get access to the real time clock
1289e842f1c8SRichard Purdie	  built into your SA11x0 or PXA2xx CPU.
1290e842f1c8SRichard Purdie
1291e842f1c8SRichard Purdie	  To compile this driver as a module, choose M here: the
1292e842f1c8SRichard Purdie	  module will be called rtc-sa1100.
1293fd507e2fSAlessandro Zummo
1294317a6104SPaul Mundtconfig RTC_DRV_SH
1295317a6104SPaul Mundt	tristate "SuperH On-Chip RTC"
12966b8029faSVenu Byravarasu	depends on SUPERH && HAVE_CLK
1297317a6104SPaul Mundt	help
1298317a6104SPaul Mundt	  Say Y here to enable support for the on-chip RTC found in
1299317a6104SPaul Mundt	  most SuperH processors.
1300317a6104SPaul Mundt
1301317a6104SPaul Mundt	  To compile this driver as a module, choose M here: the
1302317a6104SPaul Mundt	  module will be called rtc-sh.
1303317a6104SPaul Mundt
13048417eb7aSYoichi Yuasaconfig RTC_DRV_VR41XX
13053e16f6afSAlessandro Zummo	tristate "NEC VR41XX"
13067a587eaeSAlexandre Belloni	depends on CPU_VR41XX || COMPILE_TEST
13073e16f6afSAlessandro Zummo	help
13083e16f6afSAlessandro Zummo	  If you say Y here you will get access to the real time clock
13093e16f6afSAlessandro Zummo	  built into your NEC VR41XX CPU.
13103e16f6afSAlessandro Zummo
13113e16f6afSAlessandro Zummo	  To compile this driver as a module, choose M here: the
13123e16f6afSAlessandro Zummo	  module will be called rtc-vr41xx.
13138417eb7aSYoichi Yuasa
1314a190901cSRussell Kingconfig RTC_DRV_PL030
1315a190901cSRussell King	tristate "ARM AMBA PL030 RTC"
1316a190901cSRussell King	depends on ARM_AMBA
1317a190901cSRussell King	help
1318a190901cSRussell King	  If you say Y here you will get access to ARM AMBA
1319a190901cSRussell King	  PrimeCell PL030 RTC found on certain ARM SOCs.
1320a190901cSRussell King
1321a190901cSRussell King	  To compile this driver as a module, choose M here: the
1322a190901cSRussell King	  module will be called rtc-pl030.
1323a190901cSRussell King
13248ae6e163SDeepak Saxenaconfig RTC_DRV_PL031
13258ae6e163SDeepak Saxena	tristate "ARM AMBA PL031 RTC"
1326bb35fb20SJan Engelhardt	depends on ARM_AMBA
13278ae6e163SDeepak Saxena	help
13288ae6e163SDeepak Saxena	  If you say Y here you will get access to ARM AMBA
132909a21e56SAlessandro Zummo	  PrimeCell PL031 RTC found on certain ARM SOCs.
13308ae6e163SDeepak Saxena
13318ae6e163SDeepak Saxena	  To compile this driver as a module, choose M here: the
13328ae6e163SDeepak Saxena	  module will be called rtc-pl031.
13338ae6e163SDeepak Saxena
1334fa04e78bSHans-Christian Egtvedtconfig RTC_DRV_AT32AP700X
1335fa04e78bSHans-Christian Egtvedt	tristate "AT32AP700X series RTC"
13367a587eaeSAlexandre Belloni	depends on PLATFORM_AT32AP || COMPILE_TEST
1337fa04e78bSHans-Christian Egtvedt	help
1338fa04e78bSHans-Christian Egtvedt	  Driver for the internal RTC (Realtime Clock) on Atmel AVR32
1339fa04e78bSHans-Christian Egtvedt	  AT32AP700x family processors.
1340fa04e78bSHans-Christian Egtvedt
13417fc39f6dSAndrew Victorconfig RTC_DRV_AT91RM9200
134224cecc1bSNicolas Ferre	tristate "AT91RM9200 or some AT91SAM9 RTC"
13437a587eaeSAlexandre Belloni	depends on ARCH_AT91 || COMPILE_TEST
1344788b1fc6SAndrew Victor	help
13454cdf854fSDavid Brownell	  Driver for the internal RTC (Realtime Clock) module found on
134624cecc1bSNicolas Ferre	  Atmel AT91RM9200's and some  AT91SAM9 chips. On AT91SAM9 chips
13474cdf854fSDavid Brownell	  this is powered by the backup power supply.
13484cdf854fSDavid Brownell
13494cdf854fSDavid Brownellconfig RTC_DRV_AT91SAM9
13503969eb48SBoris BREZILLON	tristate "AT91SAM9 RTT as RTC"
13517a587eaeSAlexandre Belloni	depends on ARCH_AT91 || COMPILE_TEST
135243e112bbSBoris BREZILLON	select MFD_SYSCON
13534cdf854fSDavid Brownell	help
13543969eb48SBoris BREZILLON	  Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which
13553969eb48SBoris BREZILLON	  can be used as an RTC thanks to the backup power supply (e.g. a
13563969eb48SBoris BREZILLON	  small coin cell battery) which keeps this block and the GPBR
13573969eb48SBoris BREZILLON	  (General Purpose Backup Registers) block powered when the device
13583969eb48SBoris BREZILLON	  is shutdown.
13593969eb48SBoris BREZILLON	  Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd
13603969eb48SBoris BREZILLON	  probably want to use the real RTC block instead of the "RTT as an
13613969eb48SBoris BREZILLON	  RTC" driver.
13624cdf854fSDavid Brownell
136345fd8a0cSManuel Laussconfig RTC_DRV_AU1XXX
136445fd8a0cSManuel Lauss	tristate "Au1xxx Counter0 RTC support"
136542a4f17dSManuel Lauss	depends on MIPS_ALCHEMY
136645fd8a0cSManuel Lauss	help
136745fd8a0cSManuel Lauss	  This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
136845fd8a0cSManuel Lauss	  counter) to be used as a RTC.
136945fd8a0cSManuel Lauss
137045fd8a0cSManuel Lauss	  This driver can also be built as a module. If so, the module
137145fd8a0cSManuel Lauss	  will be called rtc-au1xxx.
137245fd8a0cSManuel Lauss
13738cc75c9aSWu, Bryanconfig RTC_DRV_BFIN
13748cc75c9aSWu, Bryan	tristate "Blackfin On-Chip RTC"
13757f604599SGraf Yang	depends on BLACKFIN && !BF561
13768cc75c9aSWu, Bryan	help
13778cc75c9aSWu, Bryan	  If you say yes here you will get support for the
13788cc75c9aSWu, Bryan	  Blackfin On-Chip Real Time Clock.
13798cc75c9aSWu, Bryan
13808cc75c9aSWu, Bryan	  This driver can also be built as a module. If so, the module
13818cc75c9aSWu, Bryan	  will be called rtc-bfin.
13828cc75c9aSWu, Bryan
1383e9f2bd81SNobuhiro Iwamatsuconfig RTC_DRV_RS5C313
1384e9f2bd81SNobuhiro Iwamatsu	tristate "Ricoh RS5C313"
1385bb35fb20SJan Engelhardt	depends on SH_LANDISK
1386e9f2bd81SNobuhiro Iwamatsu	help
1387e9f2bd81SNobuhiro Iwamatsu	  If you say yes here you get support for the Ricoh RS5C313 RTC chips.
1388e9f2bd81SNobuhiro Iwamatsu
13893afe6d04SGeert Uytterhoevenconfig RTC_DRV_GENERIC
13903afe6d04SGeert Uytterhoeven	tristate "Generic RTC support"
13913afe6d04SGeert Uytterhoeven	# Please consider writing a new RTC driver instead of using the generic
13923afe6d04SGeert Uytterhoeven	# RTC abstraction
13937a587eaeSAlexandre Belloni	depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST
13949eb16864SKyle McMartin	help
13953afe6d04SGeert Uytterhoeven	  Say Y or M here to enable RTC support on systems using the generic
13963afe6d04SGeert Uytterhoeven	  RTC abstraction. If you do not know what you are doing, you should
13979eb16864SKyle McMartin	  just say Y.
13989eb16864SKyle McMartin
1399dc944368SRobert Jarzmikconfig RTC_DRV_PXA
1400dc944368SRobert Jarzmik	tristate "PXA27x/PXA3xx"
1401dc944368SRobert Jarzmik	depends on ARCH_PXA
14023cdf4ad9SRob Herring	select RTC_DRV_SA1100
1403dc944368SRobert Jarzmik	help
1404dc944368SRobert Jarzmik         If you say Y here you will get access to the real time clock
14053cdf4ad9SRob Herring         built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs
14063cdf4ad9SRob Herring         consisting of an SA1100 compatible RTC and the extended PXA RTC.
1407dc944368SRobert Jarzmik
1408dc944368SRobert Jarzmik	 This RTC driver uses PXA RTC registers available since pxa27x
1409dc944368SRobert Jarzmik	 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
1410dc944368SRobert Jarzmik
1411f77fbdf9SAlexey Charkovconfig RTC_DRV_VT8500
1412f77fbdf9SAlexey Charkov	tristate "VIA/WonderMedia 85xx SoC RTC"
14137a587eaeSAlexandre Belloni	depends on ARCH_VT8500 || COMPILE_TEST
1414f77fbdf9SAlexey Charkov	help
1415f77fbdf9SAlexey Charkov	  If you say Y here you will get access to the real time clock
1416f77fbdf9SAlexey Charkov	  built into your VIA VT8500 SoC or its relatives.
1417f77fbdf9SAlexey Charkov
1418dc944368SRobert Jarzmik
14197a138edeSDavid S. Millerconfig RTC_DRV_SUN4V
14207a138edeSDavid S. Miller	bool "SUN4V Hypervisor RTC"
14217a138edeSDavid S. Miller	depends on SPARC64
14227a138edeSDavid S. Miller	help
14237a138edeSDavid S. Miller	  If you say Y here you will get support for the Hypervisor
14247a138edeSDavid S. Miller	  based RTC on SUN4V systems.
14257a138edeSDavid S. Miller
14269765d2d9SChen-Yu Tsaiconfig RTC_DRV_SUN6I
14279765d2d9SChen-Yu Tsai	tristate "Allwinner A31 RTC"
14287a587eaeSAlexandre Belloni	default MACH_SUN6I || MACH_SUN8I || COMPILE_TEST
14292863934eSAndre Przywara	depends on ARCH_SUNXI
14309765d2d9SChen-Yu Tsai	help
14312863934eSAndre Przywara	  If you say Y here you will get support for the RTC found in
14322863934eSAndre Przywara	  some Allwinner SoCs like the A31 or the A64.
14339765d2d9SChen-Yu Tsai
1434594c6fb9SCarlo Caioneconfig RTC_DRV_SUNXI
1435594c6fb9SCarlo Caione	tristate "Allwinner sun4i/sun7i RTC"
14367a587eaeSAlexandre Belloni	depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST
1437594c6fb9SCarlo Caione	help
1438594c6fb9SCarlo Caione	  If you say Y here you will get support for the RTC found on
1439594c6fb9SCarlo Caione	  Allwinner A10/A20.
1440594c6fb9SCarlo Caione
1441de2cf332SDavid S. Millerconfig RTC_DRV_STARFIRE
1442de2cf332SDavid S. Miller	bool "Starfire RTC"
1443de2cf332SDavid S. Miller	depends on SPARC64
1444de2cf332SDavid S. Miller	help
1445de2cf332SDavid S. Miller	  If you say Y here you will get support for the RTC found on
1446de2cf332SDavid S. Miller	  Starfire systems.
1447de2cf332SDavid S. Miller
14480e149233SAtsushi Nemotoconfig RTC_DRV_TX4939
14490e149233SAtsushi Nemoto	tristate "TX4939 SoC"
14500e149233SAtsushi Nemoto	depends on SOC_TX4939
14510e149233SAtsushi Nemoto	help
14520e149233SAtsushi Nemoto	  Driver for the internal RTC (Realtime Clock) module found on
14530e149233SAtsushi Nemoto	  Toshiba TX4939 SoC.
14540e149233SAtsushi Nemoto
1455defb4514SSaeed Bisharaconfig RTC_DRV_MV
1456defb4514SSaeed Bishara	tristate "Marvell SoC RTC"
14577a587eaeSAlexandre Belloni	depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST
1458defb4514SSaeed Bishara	help
1459defb4514SSaeed Bishara	  If you say yes here you will get support for the in-chip RTC
1460defb4514SSaeed Bishara	  that can be found in some of Marvell's SoC devices, such as
1461defb4514SSaeed Bishara	  the Kirkwood 88F6281 and 88F6192.
1462defb4514SSaeed Bishara
1463defb4514SSaeed Bishara	  This driver can also be built as a module. If so, the module
1464defb4514SSaeed Bishara	  will be called rtc-mv.
1465defb4514SSaeed Bishara
1466a3a42806SGregory CLEMENTconfig RTC_DRV_ARMADA38X
1467a3a42806SGregory CLEMENT	tristate "Armada 38x Marvell SoC RTC"
14687a587eaeSAlexandre Belloni	depends on ARCH_MVEBU || COMPILE_TEST
1469a3a42806SGregory CLEMENT	help
1470a3a42806SGregory CLEMENT	  If you say yes here you will get support for the in-chip RTC
1471a3a42806SGregory CLEMENT	  that can be found in the Armada 38x Marvell's SoC device
1472a3a42806SGregory CLEMENT
1473a3a42806SGregory CLEMENT	  This driver can also be built as a module. If so, the module
1474a3a42806SGregory CLEMENT	  will be called armada38x-rtc.
1475a3a42806SGregory CLEMENT
147698a9bb5bSHans Ulli Krollconfig RTC_DRV_GEMINI
147798a9bb5bSHans Ulli Kroll	tristate "Gemini SoC RTC"
147898a9bb5bSHans Ulli Kroll	depends on ARCH_GEMINI || COMPILE_TEST
147998a9bb5bSHans Ulli Kroll	depends on HAS_IOMEM
148098a9bb5bSHans Ulli Kroll	help
148198a9bb5bSHans Ulli Kroll	  If you say Y here you will get support for the
148298a9bb5bSHans Ulli Kroll	  RTC found on Gemini SoC's.
148398a9bb5bSHans Ulli Kroll
148498a9bb5bSHans Ulli Kroll	  This driver can also be built as a module. If so, the module
148598a9bb5bSHans Ulli Kroll	  will be called rtc-gemini.
148698a9bb5bSHans Ulli Kroll
14870b5f037aSGeert Uytterhoevenconfig RTC_DRV_PS3
14880b5f037aSGeert Uytterhoeven	tristate "PS3 RTC"
14890b5f037aSGeert Uytterhoeven	depends on PPC_PS3
14900b5f037aSGeert Uytterhoeven	help
14910b5f037aSGeert Uytterhoeven	  If you say yes here you will get support for the RTC on PS3.
14920b5f037aSGeert Uytterhoeven
14930b5f037aSGeert Uytterhoeven	  This driver can also be built as a module. If so, the module
14940b5f037aSGeert Uytterhoeven	  will be called rtc-ps3.
14950b5f037aSGeert Uytterhoeven
1496aa958f57SLinus Walleijconfig RTC_DRV_COH901331
1497aa958f57SLinus Walleij	tristate "ST-Ericsson COH 901 331 RTC"
14987a587eaeSAlexandre Belloni	depends on ARCH_U300 || COMPILE_TEST
1499aa958f57SLinus Walleij	help
1500aa958f57SLinus Walleij	  If you say Y here you will get access to ST-Ericsson
1501aa958f57SLinus Walleij	  COH 901 331 RTC clock found in some ST-Ericsson Mobile
1502aa958f57SLinus Walleij	  Platforms.
1503aa958f57SLinus Walleij
1504aa958f57SLinus Walleij	  This driver can also be built as a module. If so, the module
1505aa958f57SLinus Walleij	  will be called "rtc-coh901331".
1506aa958f57SLinus Walleij
1507aa958f57SLinus Walleij
1508df17f631Sdmitry pervushinconfig RTC_DRV_STMP
150946b21218SWolfram Sang	tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
15107a587eaeSAlexandre Belloni	depends on ARCH_MXS || COMPILE_TEST
151120d048acSAlexandre Belloni	select STMP_DEVICE
1512df17f631Sdmitry pervushin	help
1513df17f631Sdmitry pervushin	  If you say yes here you will get support for the onboard
151446b21218SWolfram Sang	  STMP3xxx/i.MX23/i.MX28 RTC.
1515df17f631Sdmitry pervushin
1516df17f631Sdmitry pervushin	  This driver can also be built as a module. If so, the module
1517df17f631Sdmitry pervushin	  will be called rtc-stmp3xxx.
1518df17f631Sdmitry pervushin
1519d3c7a3f7SDaniel Ribeiroconfig RTC_DRV_PCAP
1520d3c7a3f7SDaniel Ribeiro	tristate "PCAP RTC"
1521d3c7a3f7SDaniel Ribeiro	depends on EZX_PCAP
1522d3c7a3f7SDaniel Ribeiro	help
1523d3c7a3f7SDaniel Ribeiro	  If you say Y here you will get support for the RTC found on
1524d3c7a3f7SDaniel Ribeiro	  the PCAP2 ASIC used on some Motorola phones.
1525d3c7a3f7SDaniel Ribeiro
15261c97872bSUwe Kleine-Königconfig RTC_DRV_MC13XXX
15271c97872bSUwe Kleine-König	depends on MFD_MC13XXX
15281c97872bSUwe Kleine-König	tristate "Freescale MC13xxx RTC"
152943299f28SUwe Kleine-König	help
15301c97872bSUwe Kleine-König	  This enables support for the RTCs found on Freescale's PMICs
15311c97872bSUwe Kleine-König	  MC13783 and MC13892.
153243299f28SUwe Kleine-König
153350aae724SAnatolij Gustschinconfig RTC_DRV_MPC5121
153450aae724SAnatolij Gustschin	tristate "Freescale MPC5121 built-in RTC"
1535955dbea3SDmitry Eremin-Solenikov	depends on PPC_MPC512x || PPC_MPC52xx
153650aae724SAnatolij Gustschin	help
153750aae724SAnatolij Gustschin	  If you say yes here you will get support for the
1538955dbea3SDmitry Eremin-Solenikov	  built-in RTC on MPC5121 or on MPC5200.
153950aae724SAnatolij Gustschin
154050aae724SAnatolij Gustschin	  This driver can also be built as a module. If so, the module
154150aae724SAnatolij Gustschin	  will be called rtc-mpc5121.
154250aae724SAnatolij Gustschin
15433bf0eea8SLars-Peter Clausenconfig RTC_DRV_JZ4740
15443bf0eea8SLars-Peter Clausen	tristate "Ingenic JZ4740 SoC"
15457a587eaeSAlexandre Belloni	depends on MACH_JZ4740 || COMPILE_TEST
15463bf0eea8SLars-Peter Clausen	help
15473bf0eea8SLars-Peter Clausen	  If you say yes here you get support for the Ingenic JZ4740 SoC RTC
15483bf0eea8SLars-Peter Clausen	  controller.
15493bf0eea8SLars-Peter Clausen
15503bf0eea8SLars-Peter Clausen	  This driver can also be buillt as a module. If so, the module
15513bf0eea8SLars-Peter Clausen	  will be called rtc-jz4740.
15523bf0eea8SLars-Peter Clausen
1553c28b42e3SJoachim Eastwoodconfig RTC_DRV_LPC24XX
1554c28b42e3SJoachim Eastwood	tristate "NXP RTC for LPC178x/18xx/408x/43xx"
1555c28b42e3SJoachim Eastwood	depends on ARCH_LPC18XX || COMPILE_TEST
1556c28b42e3SJoachim Eastwood	depends on OF && HAS_IOMEM
1557c28b42e3SJoachim Eastwood	help
1558c28b42e3SJoachim Eastwood	  This enables support for the NXP RTC found which can be found on
1559c28b42e3SJoachim Eastwood	  NXP LPC178x/18xx/408x/43xx devices.
1560c28b42e3SJoachim Eastwood
1561c28b42e3SJoachim Eastwood	  If you have one of the devices above enable this driver to use
1562c28b42e3SJoachim Eastwood	  the hardware RTC. This driver can also be buillt as a module. If
1563c28b42e3SJoachim Eastwood	  so, the module will be called rtc-lpc24xx.
1564c28b42e3SJoachim Eastwood
15659aa449beSKevin Wellsconfig RTC_DRV_LPC32XX
15667a587eaeSAlexandre Belloni	depends on ARCH_LPC32XX || COMPILE_TEST
15679aa449beSKevin Wells	tristate "NXP LPC32XX RTC"
15689aa449beSKevin Wells	help
15699aa449beSKevin Wells	  This enables support for the NXP RTC in the LPC32XX
15709aa449beSKevin Wells
15719aa449beSKevin Wells	  This driver can also be buillt as a module. If so, the module
15729aa449beSKevin Wells	  will be called rtc-lpc32xx.
15739aa449beSKevin Wells
15749a9a54adSAnirudh Ghayalconfig RTC_DRV_PM8XXX
15759a9a54adSAnirudh Ghayal	tristate "Qualcomm PMIC8XXX RTC"
15767a587eaeSAlexandre Belloni	depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST
15779a9a54adSAnirudh Ghayal	help
15789a9a54adSAnirudh Ghayal	  If you say yes here you get support for the
15799a9a54adSAnirudh Ghayal	  Qualcomm PMIC8XXX RTC.
15809a9a54adSAnirudh Ghayal
15819a9a54adSAnirudh Ghayal	  To compile this driver as a module, choose M here: the
15829a9a54adSAnirudh Ghayal	  module will be called rtc-pm8xxx.
15839a9a54adSAnirudh Ghayal
1584ff859ba6SAndrew Chewconfig RTC_DRV_TEGRA
1585ff859ba6SAndrew Chew	tristate "NVIDIA Tegra Internal RTC driver"
15867a587eaeSAlexandre Belloni	depends on ARCH_TEGRA || COMPILE_TEST
1587ff859ba6SAndrew Chew	help
1588ff859ba6SAndrew Chew	  If you say yes here you get support for the
1589ff859ba6SAndrew Chew	  Tegra 200 series internal RTC module.
1590ff859ba6SAndrew Chew
1591ff859ba6SAndrew Chew	  This drive can also be built as a module. If so, the module
1592ff859ba6SAndrew Chew	  will be called rtc-tegra.
1593ff859ba6SAndrew Chew
1594dd196a2bSChris Metcalfconfig RTC_DRV_TILE
1595dd196a2bSChris Metcalf	tristate "Tilera hypervisor RTC support"
1596dd196a2bSChris Metcalf	depends on TILE
1597dd196a2bSChris Metcalf	help
1598dd196a2bSChris Metcalf	  Enable support for the Linux driver side of the Tilera
1599dd196a2bSChris Metcalf	  hypervisor's real-time clock interface.
1600dd196a2bSChris Metcalf
16012809e80bSGuan Xuetaoconfig RTC_DRV_PUV3
16022809e80bSGuan Xuetao	tristate "PKUnity v3 RTC support"
16032809e80bSGuan Xuetao	depends on ARCH_PUV3
16042809e80bSGuan Xuetao	help
16052809e80bSGuan Xuetao	  This enables support for the RTC in the PKUnity-v3 SoCs.
16062809e80bSGuan Xuetao
16072809e80bSGuan Xuetao	  This drive can also be built as a module. If so, the module
16082809e80bSGuan Xuetao	  will be called rtc-puv3.
16092809e80bSGuan Xuetao
1610b4f0b880Szhao zhangconfig RTC_DRV_LOONGSON1
1611b4f0b880Szhao zhang	tristate "loongson1 RTC support"
161230ad29bbSHuacai Chen	depends on MACH_LOONGSON32
1613b4f0b880Szhao zhang	help
1614b4f0b880Szhao zhang	  This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1615b4f0b880Szhao zhang	  counter) to be used as a RTC.
1616b4f0b880Szhao zhang
1617b4f0b880Szhao zhang	  This driver can also be built as a module. If so, the module
1618b4f0b880Szhao zhang	  will be called rtc-ls1x.
1619b4f0b880Szhao zhang
162079811595SFabio Estevamconfig RTC_DRV_MXC
1621b224b9acSFabio Estevam	tristate "Freescale MXC Real Time Clock"
1622b224b9acSFabio Estevam	depends on ARCH_MXC
1623b224b9acSFabio Estevam	help
1624b224b9acSFabio Estevam	   If you say yes here you get support for the Freescale MXC
1625b224b9acSFabio Estevam	   RTC module.
1626b224b9acSFabio Estevam
1627b224b9acSFabio Estevam	   This driver can also be built as a module, if so, the module
1628b224b9acSFabio Estevam	   will be called "rtc-mxc".
1629b224b9acSFabio Estevam
1630179a502fSShawn Guoconfig RTC_DRV_SNVS
1631179a502fSShawn Guo	tristate "Freescale SNVS RTC support"
16328a0fa184SShawn Guo	select REGMAP_MMIO
1633179a502fSShawn Guo	depends on HAS_IOMEM
1634179a502fSShawn Guo	depends on OF
1635179a502fSShawn Guo	help
1636179a502fSShawn Guo	   If you say yes here you get support for the Freescale SNVS
1637179a502fSShawn Guo	   Low Power (LP) RTC module.
1638179a502fSShawn Guo
1639179a502fSShawn Guo	   This driver can also be built as a module, if so, the module
1640179a502fSShawn Guo	   will be called "rtc-snvs".
1641179a502fSShawn Guo
1642e88b815eSXianglong Duconfig RTC_DRV_SIRFSOC
1643e88b815eSXianglong Du	tristate "SiRFSOC RTC"
1644e88b815eSXianglong Du	depends on ARCH_SIRF
1645e88b815eSXianglong Du	help
1646e88b815eSXianglong Du	  Say "yes" here to support the real time clock on SiRF SOC chips.
1647e88b815eSXianglong Du	  This driver can also be built as a module called rtc-sirfsoc.
1648e88b815eSXianglong Du
1649b5b2bdfcSLee Jonesconfig RTC_DRV_ST_LPC
1650b5b2bdfcSLee Jones	tristate "STMicroelectronics LPC RTC"
1651b5b2bdfcSLee Jones	depends on ARCH_STI
1652b5b2bdfcSLee Jones	depends on OF
1653b5b2bdfcSLee Jones	help
1654b5b2bdfcSLee Jones	  Say Y here to include STMicroelectronics Low Power Controller
1655b5b2bdfcSLee Jones	  (LPC) based RTC support.
1656b5b2bdfcSLee Jones
1657b5b2bdfcSLee Jones	  To compile this driver as a module, choose M here: the
1658b5b2bdfcSLee Jones	  module will be called rtc-st-lpc.
1659b5b2bdfcSLee Jones
1660453b4c6dSJonas Jensenconfig RTC_DRV_MOXART
1661453b4c6dSJonas Jensen	tristate "MOXA ART RTC"
1662441fb768SJean Delvare	depends on ARCH_MOXART || COMPILE_TEST
1663453b4c6dSJonas Jensen	help
1664453b4c6dSJonas Jensen	   If you say yes here you get support for the MOXA ART
1665453b4c6dSJonas Jensen	   RTC module.
1666453b4c6dSJonas Jensen
1667453b4c6dSJonas Jensen	   This driver can also be built as a module. If so, the module
1668453b4c6dSJonas Jensen	   will be called rtc-moxart
1669453b4c6dSJonas Jensen
1670fc297911STianping Fangconfig RTC_DRV_MT6397
1671fc297911STianping Fang	tristate "Mediatek Real Time Clock driver"
167204d3ba70SArnd Bergmann	depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN)
1673fc297911STianping Fang	help
1674fc297911STianping Fang	  This selects the Mediatek(R) RTC driver. RTC is part of Mediatek
1675fc297911STianping Fang	  MT6397 PMIC. You should enable MT6397 PMIC MFD before select
1676fc297911STianping Fang	  Mediatek(R) RTC driver.
1677fc297911STianping Fang
1678fc297911STianping Fang	  If you want to use Mediatek(R) RTC interface, select Y or M here.
1679fc297911STianping Fang
1680f12d8695SLoc Hoconfig RTC_DRV_XGENE
1681f12d8695SLoc Ho	tristate "APM X-Gene RTC"
1682706b632dSChen Gang	depends on HAS_IOMEM
1683fdf8afa1SJean Delvare	depends on ARCH_XGENE || COMPILE_TEST
1684f12d8695SLoc Ho	help
1685f12d8695SLoc Ho	  If you say yes here you get support for the APM X-Gene SoC real time
1686f12d8695SLoc Ho	  clock.
1687f12d8695SLoc Ho
1688f12d8695SLoc Ho	  This driver can also be built as a module, if so, the module
1689f12d8695SLoc Ho	  will be called "rtc-xgene".
1690f12d8695SLoc Ho
169151aa905cSJoshua Hendersonconfig RTC_DRV_PIC32
169251aa905cSJoshua Henderson	tristate "Microchip PIC32 RTC"
169351aa905cSJoshua Henderson	depends on MACH_PIC32
169451aa905cSJoshua Henderson	default y
169551aa905cSJoshua Henderson	help
169651aa905cSJoshua Henderson	   If you say yes here you get support for the PIC32 RTC module.
169751aa905cSJoshua Henderson
169851aa905cSJoshua Henderson	   This driver can also be built as a module. If so, the module
169951aa905cSJoshua Henderson	   will be called rtc-pic32
170051aa905cSJoshua Henderson
170162e00cb9SAlexander Hollercomment "HID Sensor RTC drivers"
170262e00cb9SAlexander Holler
170362e00cb9SAlexander Hollerconfig RTC_DRV_HID_SENSOR_TIME
170462e00cb9SAlexander Holler	tristate "HID Sensor Time"
170562e00cb9SAlexander Holler	depends on USB_HID
170662e00cb9SAlexander Holler	select IIO
170762e00cb9SAlexander Holler	select HID_SENSOR_HUB
170862e00cb9SAlexander Holler	select HID_SENSOR_IIO_COMMON
170962e00cb9SAlexander Holler	help
171062e00cb9SAlexander Holler	  Say yes here to build support for the HID Sensors of type Time.
171162e00cb9SAlexander Holler	  This drivers makes such sensors available as RTCs.
171262e00cb9SAlexander Holler
171362e00cb9SAlexander Holler	  If this driver is compiled as a module, it will be named
171462e00cb9SAlexander Holler	  rtc-hid-sensor-time.
171562e00cb9SAlexander Holler
171662e00cb9SAlexander Holler
1717bb35fb20SJan Engelhardtendif # RTC_CLASS
1718