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 80697e5a47SAlexandre Belloniconfig RTC_NVMEM 81697e5a47SAlexandre Belloni bool "RTC non volatile storage support" 82697e5a47SAlexandre Belloni select NVMEM 83697e5a47SAlexandre Belloni default RTC_CLASS 84697e5a47SAlexandre Belloni help 85697e5a47SAlexandre Belloni Say yes here to add support for the non volatile (often battery 86697e5a47SAlexandre Belloni backed) storage present on RTCs. 87697e5a47SAlexandre Belloni 880c86edc0SAlessandro Zummocomment "RTC interfaces" 890c86edc0SAlessandro Zummo 90c5c3e192SAlessandro Zummoconfig RTC_INTF_SYSFS 916341e62bSChristoph Jaeger bool "/sys/class/rtc/rtcN (sysfs)" 92bb35fb20SJan Engelhardt depends on SYSFS 938dc08395SKevin Hilman default RTC_CLASS 94c5c3e192SAlessandro Zummo help 959e86ecb6SDavid Brownell Say yes here if you want to use your RTCs using sysfs interfaces, 969e86ecb6SDavid Brownell /sys/class/rtc/rtc0 through /sys/.../rtcN. 97c5c3e192SAlessandro Zummo 98ae64d169SAlessandro Zummo If unsure, say Y. 99c5c3e192SAlessandro Zummo 100728a2947SAlessandro Zummoconfig RTC_INTF_PROC 1016341e62bSChristoph Jaeger bool "/proc/driver/rtc (procfs for rtcN)" 102bb35fb20SJan Engelhardt depends on PROC_FS 1038dc08395SKevin Hilman default RTC_CLASS 104728a2947SAlessandro Zummo help 10592589c98SKim, Milo Say yes here if you want to use your system clock RTC through 10692589c98SKim, Milo the proc interface, /proc/driver/rtc. 10792589c98SKim, Milo Other RTCs will not be available through that API. 10892589c98SKim, Milo If there is no RTC for the system clock, then the first RTC(rtc0) 10992589c98SKim, Milo is used by default. 110728a2947SAlessandro Zummo 111ae64d169SAlessandro Zummo If unsure, say Y. 112728a2947SAlessandro Zummo 113e824290eSAlessandro Zummoconfig RTC_INTF_DEV 1146341e62bSChristoph Jaeger bool "/dev/rtcN (character devices)" 1158dc08395SKevin Hilman default RTC_CLASS 116e824290eSAlessandro Zummo help 1179e86ecb6SDavid Brownell Say yes here if you want to use your RTCs using the /dev 1189e86ecb6SDavid Brownell interfaces, which "udev" sets up as /dev/rtc0 through 119ae64d169SAlessandro Zummo /dev/rtcN. 120e824290eSAlessandro Zummo 121ae64d169SAlessandro Zummo You may want to set up a symbolic link so one of these 122ae64d169SAlessandro Zummo can be accessed as /dev/rtc, which is a name 123ae64d169SAlessandro Zummo expected by "hwclock" and some other programs. Recent 124ae64d169SAlessandro Zummo versions of "udev" are known to set up the symlink for you. 125ae64d169SAlessandro Zummo 126ae64d169SAlessandro Zummo If unsure, say Y. 127e824290eSAlessandro Zummo 1286e57b1d6SJohn Stultzconfig RTC_INTF_DEV_UIE_EMUL 1296e57b1d6SJohn Stultz bool "RTC UIE emulation on dev interface" 1306e57b1d6SJohn Stultz depends on RTC_INTF_DEV 1316e57b1d6SJohn Stultz help 1326e57b1d6SJohn Stultz Provides an emulation for RTC_UIE if the underlying rtc chip 1336e57b1d6SJohn Stultz driver does not expose RTC_UIE ioctls. Those requests generate 1346e57b1d6SJohn Stultz once-per-second update interrupts, used for synchronization. 1356e57b1d6SJohn Stultz 1366e57b1d6SJohn Stultz The emulation code will read the time from the hardware 1376e57b1d6SJohn Stultz clock several times per second, please enable this option 1386e57b1d6SJohn Stultz only if you know that you really need it. 1396e57b1d6SJohn Stultz 14009a21e56SAlessandro Zummoconfig RTC_DRV_TEST 14109a21e56SAlessandro Zummo tristate "Test driver/device" 14209a21e56SAlessandro Zummo help 14309a21e56SAlessandro Zummo If you say yes here you get support for the 14409a21e56SAlessandro Zummo RTC test driver. It's a software RTC which can be 14509a21e56SAlessandro Zummo used to test the RTC subsystem APIs. It gets 14609a21e56SAlessandro Zummo the time from the system clock. 14709a21e56SAlessandro Zummo You want this driver only if you are doing development 14809a21e56SAlessandro Zummo on the RTC subsystem. Please read the source code 14909a21e56SAlessandro Zummo for further details. 15009a21e56SAlessandro Zummo 15109a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 15209a21e56SAlessandro Zummo will be called rtc-test. 15309a21e56SAlessandro Zummo 15409a21e56SAlessandro Zummocomment "I2C RTC drivers" 155bb35fb20SJan Engelhardt 156bb35fb20SJan Engelhardtif I2C 15709a21e56SAlessandro Zummo 158008b3040SHaojian Zhuangconfig RTC_DRV_88PM860X 159008b3040SHaojian Zhuang tristate "Marvell 88PM860x" 1603783055eSAlexandre Belloni depends on MFD_88PM860X 161008b3040SHaojian Zhuang help 162008b3040SHaojian Zhuang If you say yes here you get support for RTC function in Marvell 163008b3040SHaojian Zhuang 88PM860x chips. 164008b3040SHaojian Zhuang 165008b3040SHaojian Zhuang This driver can also be built as a module. If so, the module 166008b3040SHaojian Zhuang will be called rtc-88pm860x. 167008b3040SHaojian Zhuang 1682985c29cSQiao Zhouconfig RTC_DRV_88PM80X 1692985c29cSQiao Zhou tristate "Marvell 88PM80x" 1703783055eSAlexandre Belloni depends on MFD_88PM800 1712985c29cSQiao Zhou help 1722985c29cSQiao Zhou If you say yes here you get support for RTC function in Marvell 1732985c29cSQiao Zhou 88PM80x chips. 1742985c29cSQiao Zhou 1752985c29cSQiao Zhou This driver can also be built as a module. If so, the module 1762985c29cSQiao Zhou will be called rtc-88pm80x. 1772985c29cSQiao Zhou 1780b2f6228SArnaud Ebalardconfig RTC_DRV_ABB5ZES3 1790b2f6228SArnaud Ebalard select REGMAP_I2C 1800b2f6228SArnaud Ebalard tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3" 1810b2f6228SArnaud Ebalard help 1820b2f6228SArnaud Ebalard If you say yes here you get support for the Abracon 1830b2f6228SArnaud Ebalard AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip. 1840b2f6228SArnaud Ebalard 1850b2f6228SArnaud Ebalard This driver can also be built as a module. If so, the module 1860b2f6228SArnaud Ebalard will be called rtc-ab-b5ze-s3. 1870b2f6228SArnaud Ebalard 1884d61ff6bSPhilippe De Muyterconfig RTC_DRV_ABX80X 1894d61ff6bSPhilippe De Muyter tristate "Abracon ABx80x" 1904d61ff6bSPhilippe De Muyter help 1914d61ff6bSPhilippe De Muyter If you say yes here you get support for Abracon AB080X and AB180X 1924d61ff6bSPhilippe De Muyter families of ultra-low-power battery- and capacitor-backed real-time 1934d61ff6bSPhilippe De Muyter clock chips. 1944d61ff6bSPhilippe De Muyter 1954d61ff6bSPhilippe De Muyter This driver can also be built as a module. If so, the module 1964d61ff6bSPhilippe De Muyter will be called rtc-abx80x. 1974d61ff6bSPhilippe De Muyter 198d00a18a4SChen-Yu Tsaiconfig RTC_DRV_AC100 199d00a18a4SChen-Yu Tsai tristate "X-Powers AC100" 200d00a18a4SChen-Yu Tsai depends on MFD_AC100 201d00a18a4SChen-Yu Tsai help 202d00a18a4SChen-Yu Tsai If you say yes here you get support for the real-time clock found 203d00a18a4SChen-Yu Tsai in X-Powers AC100 family peripheral ICs. 204d00a18a4SChen-Yu Tsai 205d00a18a4SChen-Yu Tsai This driver can also be built as a module. If so, the module 206d00a18a4SChen-Yu Tsai will be called rtc-ac100. 207d00a18a4SChen-Yu Tsai 208c4f07eceSBrian Norrisconfig RTC_DRV_BRCMSTB 209c4f07eceSBrian Norris tristate "Broadcom STB wake-timer" 210c4f07eceSBrian Norris depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 211c4f07eceSBrian Norris default ARCH_BRCMSTB || BMIPS_GENERIC 212c4f07eceSBrian Norris help 213c4f07eceSBrian Norris If you say yes here you get support for the wake-timer found on 214c4f07eceSBrian Norris Broadcom STB SoCs (BCM7xxx). 215c4f07eceSBrian Norris 216c4f07eceSBrian Norris This driver can also be built as a module. If so, the module will 217c4f07eceSBrian Norris be called rtc-brcmstb-waketimer. 218c4f07eceSBrian Norris 219b4506261SLaxman Dewanganconfig RTC_DRV_AS3722 220b4506261SLaxman Dewangan tristate "ams AS3722 RTC driver" 221b4506261SLaxman Dewangan depends on MFD_AS3722 222b4506261SLaxman Dewangan help 223b4506261SLaxman Dewangan If you say yes here you get support for the RTC of ams AS3722 PMIC 224b4506261SLaxman Dewangan chips. 225b4506261SLaxman Dewangan 226b4506261SLaxman Dewangan This driver can also be built as a module. If so, the module 227b4506261SLaxman Dewangan will be called rtc-as3722. 228b4506261SLaxman Dewangan 22909a21e56SAlessandro Zummoconfig RTC_DRV_DS1307 2300759c886SNikita Yushchenko tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057" 23109a21e56SAlessandro Zummo help 23209a21e56SAlessandro Zummo If you say yes here you get support for various compatible RTC 23309a21e56SAlessandro Zummo chips (often with battery backup) connected with I2C. This driver 2340759c886SNikita Yushchenko should handle DS1307, DS1337, DS1338, DS1339, DS1340, DS1341, 2350759c886SNikita Yushchenko ST M41T00, EPSON RX-8025, Intersil ISL12057 and probably other chips. 2360759c886SNikita Yushchenko In some cases the RTC must already have been initialized (by 2370759c886SNikita Yushchenko manufacturing or a bootloader). 23809a21e56SAlessandro Zummo 23909a21e56SAlessandro Zummo The first seven registers on these chips hold an RTC, and other 24009a21e56SAlessandro Zummo registers may add features such as NVRAM, a trickle charger for 241682d73f6SDavid Brownell the RTC/NVRAM backup power, and alarms. NVRAM is visible in 242682d73f6SDavid Brownell sysfs, but other chip features may not be available. 24309a21e56SAlessandro Zummo 24409a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 24509a21e56SAlessandro Zummo will be called rtc-ds1307. 24609a21e56SAlessandro Zummo 247445c0207SAkinobu Mitaconfig RTC_DRV_DS1307_HWMON 248445c0207SAkinobu Mita bool "HWMON support for rtc-ds1307" 249445c0207SAkinobu Mita depends on RTC_DRV_DS1307 && HWMON 250445c0207SAkinobu Mita depends on !(RTC_DRV_DS1307=y && HWMON=m) 251445c0207SAkinobu Mita default y 252445c0207SAkinobu Mita help 253445c0207SAkinobu Mita Say Y here if you want to expose temperature sensor data on 254445c0207SAkinobu Mita rtc-ds1307 (only DS3231) 255445c0207SAkinobu Mita 25650d6c0eaSAlexandre Belloniconfig RTC_DRV_DS1307_CENTURY 25750d6c0eaSAlexandre Belloni bool "Century bit support for rtc-ds1307" 25850d6c0eaSAlexandre Belloni depends on RTC_DRV_DS1307 25950d6c0eaSAlexandre Belloni default n 26050d6c0eaSAlexandre Belloni help 26150d6c0eaSAlexandre Belloni The DS1307 driver suffered from a bug where it was enabling the 26250d6c0eaSAlexandre Belloni century bit inconditionnally but never used it when reading the time. 26350d6c0eaSAlexandre Belloni It made the driver unable to support dates beyond 2099. 26450d6c0eaSAlexandre Belloni Setting this option will add proper support for the century bit but if 26550d6c0eaSAlexandre Belloni the time was previously set using a kernel predating this option, 26650d6c0eaSAlexandre Belloni reading the date will return a date in the next century. 26750d6c0eaSAlexandre Belloni To solve that, you could boot a kernel without this option set, set 26850d6c0eaSAlexandre Belloni the RTC date and then boot a kernel with this option set. 26950d6c0eaSAlexandre Belloni 270bf4994d7SScott Woodconfig RTC_DRV_DS1374 27109b6bdb3SAlessandro Zummo tristate "Dallas/Maxim DS1374" 272bf4994d7SScott Wood help 273bf4994d7SScott Wood If you say yes here you get support for Dallas Semiconductor 274bf4994d7SScott Wood DS1374 real-time clock chips. If an interrupt is associated 275bf4994d7SScott Wood with the device, the alarm functionality is supported. 276bf4994d7SScott Wood 277bf4994d7SScott Wood This driver can also be built as a module. If so, the module 278bf4994d7SScott Wood will be called rtc-ds1374. 279bf4994d7SScott Wood 280920f91e5SSøren Andersenconfig RTC_DRV_DS1374_WDT 281920f91e5SSøren Andersen bool "Dallas/Maxim DS1374 watchdog timer" 282920f91e5SSøren Andersen depends on RTC_DRV_DS1374 283920f91e5SSøren Andersen help 284920f91e5SSøren Andersen If you say Y here you will get support for the 285920f91e5SSøren Andersen watchdog timer in the Dallas Semiconductor DS1374 286920f91e5SSøren Andersen real-time clock chips. 287920f91e5SSøren Andersen 28809a21e56SAlessandro Zummoconfig RTC_DRV_DS1672 28909a21e56SAlessandro Zummo tristate "Dallas/Maxim DS1672" 29009a21e56SAlessandro Zummo help 29109a21e56SAlessandro Zummo If you say yes here you get support for the 29209a21e56SAlessandro Zummo Dallas/Maxim DS1672 timekeeping chip. 29309a21e56SAlessandro Zummo 29409a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 29509a21e56SAlessandro Zummo will be called rtc-ds1672. 29609a21e56SAlessandro Zummo 297dcaf0384SHeiko Stuebnerconfig RTC_DRV_HYM8563 298dcaf0384SHeiko Stuebner tristate "Haoyu Microelectronics HYM8563" 2993783055eSAlexandre Belloni depends on OF 300dcaf0384SHeiko Stuebner help 301dcaf0384SHeiko Stuebner Say Y to enable support for the HYM8563 I2C RTC chip. Apart 302dcaf0384SHeiko Stuebner from the usual rtc functions it provides a clock output of 303dcaf0384SHeiko Stuebner up to 32kHz. 304dcaf0384SHeiko Stuebner 305dcaf0384SHeiko Stuebner This driver can also be built as a module. If so, the module 306dcaf0384SHeiko Stuebner will be called rtc-hym8563. 307dcaf0384SHeiko Stuebner 30838ae176eSKim, Miloconfig RTC_DRV_LP8788 30938ae176eSKim, Milo tristate "TI LP8788 RTC driver" 31038ae176eSKim, Milo depends on MFD_LP8788 31138ae176eSKim, Milo help 31238ae176eSKim, Milo Say Y to enable support for the LP8788 RTC/ALARM driver. 31338ae176eSKim, Milo 31409a21e56SAlessandro Zummoconfig RTC_DRV_MAX6900 31509b6bdb3SAlessandro Zummo tristate "Maxim MAX6900" 31609a21e56SAlessandro Zummo help 31709a21e56SAlessandro Zummo If you say yes here you will get support for the 31809a21e56SAlessandro Zummo Maxim MAX6900 I2C RTC chip. 31909a21e56SAlessandro Zummo 32009a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 32109a21e56SAlessandro Zummo will be called rtc-max6900. 32209a21e56SAlessandro Zummo 32394c01ab6SStephen Warrenconfig RTC_DRV_MAX8907 32494c01ab6SStephen Warren tristate "Maxim MAX8907" 325959df777SKrzysztof Kozlowski depends on MFD_MAX8907 || COMPILE_TEST 32694c01ab6SStephen Warren help 32794c01ab6SStephen Warren If you say yes here you will get support for the 32894c01ab6SStephen Warren RTC of Maxim MAX8907 PMIC. 32994c01ab6SStephen Warren 33094c01ab6SStephen Warren This driver can also be built as a module. If so, the module 33194c01ab6SStephen Warren will be called rtc-max8907. 33294c01ab6SStephen Warren 333a39069f6SHaojian Zhuangconfig RTC_DRV_MAX8925 334a39069f6SHaojian Zhuang tristate "Maxim MAX8925" 335a39069f6SHaojian Zhuang depends on MFD_MAX8925 336a39069f6SHaojian Zhuang help 337a39069f6SHaojian Zhuang If you say yes here you will get support for the 338a39069f6SHaojian Zhuang RTC of Maxim MAX8925 PMIC. 339a39069f6SHaojian Zhuang 340a39069f6SHaojian Zhuang This driver can also be built as a module. If so, the module 341a39069f6SHaojian Zhuang will be called rtc-max8925. 342a39069f6SHaojian Zhuang 3439b16c0a4SJoonyoung Shimconfig RTC_DRV_MAX8998 3449b16c0a4SJoonyoung Shim tristate "Maxim MAX8998" 3459b16c0a4SJoonyoung Shim depends on MFD_MAX8998 3469b16c0a4SJoonyoung Shim help 3479b16c0a4SJoonyoung Shim If you say yes here you will get support for the 3489b16c0a4SJoonyoung Shim RTC of Maxim MAX8998 PMIC. 3499b16c0a4SJoonyoung Shim 3509b16c0a4SJoonyoung Shim This driver can also be built as a module. If so, the module 3519b16c0a4SJoonyoung Shim will be called rtc-max8998. 3529b16c0a4SJoonyoung Shim 3535e0b2704SJonghwa Leeconfig RTC_DRV_MAX8997 3545e0b2704SJonghwa Lee tristate "Maxim MAX8997" 3555e0b2704SJonghwa Lee depends on MFD_MAX8997 3565e0b2704SJonghwa Lee help 3575e0b2704SJonghwa Lee If you say yes here you will get support for the 3585e0b2704SJonghwa Lee RTC of Maxim MAX8997 PMIC. 3595e0b2704SJonghwa Lee 3605e0b2704SJonghwa Lee This driver can also be built as a module. If so, the module 3615e0b2704SJonghwa Lee will be called rtc-max8997. 3625e0b2704SJonghwa Lee 363fca1dd03SJonghwa Leeconfig RTC_DRV_MAX77686 364fca1dd03SJonghwa Lee tristate "Maxim MAX77686" 365959df777SKrzysztof Kozlowski depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST 366fca1dd03SJonghwa Lee help 367fca1dd03SJonghwa Lee If you say yes here you will get support for the 368726fe738SLaxman Dewangan RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC. 369fca1dd03SJonghwa Lee 370fca1dd03SJonghwa Lee This driver can also be built as a module. If so, the module 371fca1dd03SJonghwa Lee will be called rtc-max77686. 372fca1dd03SJonghwa Lee 3733ca1e326SChris Zhongconfig RTC_DRV_RK808 37479c676c4SElaine Zhang tristate "Rockchip RK805/RK808/RK818 RTC" 3753ca1e326SChris Zhong depends on MFD_RK808 3763ca1e326SChris Zhong help 3773ca1e326SChris Zhong If you say yes here you will get support for the 37879c676c4SElaine Zhang RTC of RK805, RK808 and RK818 PMIC. 3793ca1e326SChris Zhong 3803ca1e326SChris Zhong This driver can also be built as a module. If so, the module 3813ca1e326SChris Zhong will be called rk808-rtc. 3823ca1e326SChris Zhong 38309a21e56SAlessandro Zummoconfig RTC_DRV_RS5C372 3845d4529beSPaul Mundt tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A" 38509a21e56SAlessandro Zummo help 38609a21e56SAlessandro Zummo If you say yes here you get support for the 3875d4529beSPaul Mundt Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. 38809a21e56SAlessandro Zummo 38909a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 39009a21e56SAlessandro Zummo will be called rtc-rs5c372. 39109a21e56SAlessandro Zummo 39209a21e56SAlessandro Zummoconfig RTC_DRV_ISL1208 39309b6bdb3SAlessandro Zummo tristate "Intersil ISL1208" 39409a21e56SAlessandro Zummo help 39509a21e56SAlessandro Zummo If you say yes here you get support for the 39609b6bdb3SAlessandro Zummo Intersil ISL1208 RTC chip. 39709a21e56SAlessandro Zummo 39809a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 39909a21e56SAlessandro Zummo will be called rtc-isl1208. 40009a21e56SAlessandro Zummo 401d6c7428fSRoman Fietzeconfig RTC_DRV_ISL12022 402d6c7428fSRoman Fietze tristate "Intersil ISL12022" 403d6c7428fSRoman Fietze help 404d6c7428fSRoman Fietze If you say yes here you get support for the 405d6c7428fSRoman Fietze Intersil ISL12022 RTC chip. 406d6c7428fSRoman Fietze 407d6c7428fSRoman Fietze This driver can also be built as a module. If so, the module 408d6c7428fSRoman Fietze will be called rtc-isl12022. 409d6c7428fSRoman Fietze 41009a21e56SAlessandro Zummoconfig RTC_DRV_X1205 41109a21e56SAlessandro Zummo tristate "Xicor/Intersil X1205" 41209a21e56SAlessandro Zummo help 41309a21e56SAlessandro Zummo If you say yes here you get support for the 41409a21e56SAlessandro Zummo Xicor/Intersil X1205 RTC chip. 41509a21e56SAlessandro Zummo 41609a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 41709a21e56SAlessandro Zummo will be called rtc-x1205. 41809a21e56SAlessandro Zummo 419f803f0d0SThierry Redingconfig RTC_DRV_PCF8523 420f803f0d0SThierry Reding tristate "NXP PCF8523" 421f803f0d0SThierry Reding help 422f803f0d0SThierry Reding If you say yes here you get support for the NXP PCF8523 RTC 423f803f0d0SThierry Reding chips. 424f803f0d0SThierry Reding 425f803f0d0SThierry Reding This driver can also be built as a module. If so, the module 426f803f0d0SThierry Reding will be called rtc-pcf8523. 427f803f0d0SThierry Reding 428d084885eSSoren Brinkmannconfig RTC_DRV_PCF85063 429d084885eSSoren Brinkmann tristate "NXP PCF85063" 430d084885eSSoren Brinkmann help 431d084885eSSoren Brinkmann If you say yes here you get support for the PCF85063 RTC chip 432d084885eSSoren Brinkmann 433d084885eSSoren Brinkmann This driver can also be built as a module. If so, the module 434d084885eSSoren Brinkmann will be called rtc-pcf85063. 435d084885eSSoren Brinkmann 43609a21e56SAlessandro Zummoconfig RTC_DRV_PCF8563 43709a21e56SAlessandro Zummo tristate "Philips PCF8563/Epson RTC8564" 43809a21e56SAlessandro Zummo help 43909a21e56SAlessandro Zummo If you say yes here you get support for the 44009a21e56SAlessandro Zummo Philips PCF8563 RTC chip. The Epson RTC8564 44109a21e56SAlessandro Zummo should work as well. 44209a21e56SAlessandro Zummo 44309a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 44409a21e56SAlessandro Zummo will be called rtc-pcf8563. 44509a21e56SAlessandro Zummo 44609a21e56SAlessandro Zummoconfig RTC_DRV_PCF8583 44709a21e56SAlessandro Zummo tristate "Philips PCF8583" 44809a21e56SAlessandro Zummo help 44909a21e56SAlessandro Zummo If you say yes here you get support for the Philips PCF8583 45009a21e56SAlessandro Zummo RTC chip found on Acorn RiscPCs. This driver supports the 45109a21e56SAlessandro Zummo platform specific method of retrieving the current year from 45209a21e56SAlessandro Zummo the RTC's SRAM. It will work on other platforms with the same 45309a21e56SAlessandro Zummo chip, but the year will probably have to be tweaked. 45409a21e56SAlessandro Zummo 45509a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 45609a21e56SAlessandro Zummo will be called rtc-pcf8583. 45709a21e56SAlessandro Zummo 458caaff562SAtsushi Nemotoconfig RTC_DRV_M41T80 4596b1a5235SWolfram Sang tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible" 460caaff562SAtsushi Nemoto help 461d3a126fcSSteven A. Falco If you say Y here you will get support for the ST M41T60 462d3a126fcSSteven A. Falco and M41T80 RTC chips series. Currently, the following chips are 463f30281f4SDaniel Glockner supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84, 4646b1a5235SWolfram Sang M41ST85, M41ST87, and MicroCrystal RV4162. 465caaff562SAtsushi Nemoto 466caaff562SAtsushi Nemoto This driver can also be built as a module. If so, the module 467caaff562SAtsushi Nemoto will be called rtc-m41t80. 468caaff562SAtsushi Nemoto 469617780d2SAtsushi Nemotoconfig RTC_DRV_M41T80_WDT 470d3a126fcSSteven A. Falco bool "ST M41T65/M41T80 series RTC watchdog timer" 471617780d2SAtsushi Nemoto depends on RTC_DRV_M41T80 472617780d2SAtsushi Nemoto help 473617780d2SAtsushi Nemoto If you say Y here you will get support for the 474d3a126fcSSteven A. Falco watchdog timer in the ST M41T60 and M41T80 RTC chips series. 475617780d2SAtsushi Nemoto 4761ce7c83fSPiotr Ziecikconfig RTC_DRV_BQ32K 4771ce7c83fSPiotr Ziecik tristate "TI BQ32000" 4781ce7c83fSPiotr Ziecik help 4791ce7c83fSPiotr Ziecik If you say Y here you will get support for the TI 4801ce7c83fSPiotr Ziecik BQ32000 I2C RTC chip. 4811ce7c83fSPiotr Ziecik 4821ce7c83fSPiotr Ziecik This driver can also be built as a module. If so, the module 4831ce7c83fSPiotr Ziecik will be called rtc-bq32k. 4841ce7c83fSPiotr Ziecik 485afd8d0f9SDavid Brownellconfig RTC_DRV_DM355EVM 486afd8d0f9SDavid Brownell tristate "TI DaVinci DM355 EVM RTC" 487afd8d0f9SDavid Brownell depends on MFD_DM355EVM_MSP 488afd8d0f9SDavid Brownell help 489afd8d0f9SDavid Brownell Supports the RTC firmware in the MSP430 on the DM355 EVM. 490afd8d0f9SDavid Brownell 4910c4a59feSTony Lindgrenconfig RTC_DRV_TWL92330 4926341e62bSChristoph Jaeger bool "TI TWL92330/Menelaus" 493bb35fb20SJan Engelhardt depends on MENELAUS 4940c4a59feSTony Lindgren help 4950c4a59feSTony Lindgren If you say yes here you get support for the RTC on the 49601dd2fbfSMatt LaPlante TWL92330 "Menelaus" power management chip, used with OMAP2 4970c4a59feSTony Lindgren platforms. The support is integrated with the rest of 4980c4a59feSTony Lindgren the Menelaus driver; it's not separate module. 4990c4a59feSTony Lindgren 500f96411abSDavid Brownellconfig RTC_DRV_TWL4030 501a6b49ffdSBalaji T K tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0" 5026b8029faSVenu Byravarasu depends on TWL4030_CORE 5031c02cbfeSNicolae Rosia depends on OF 504f96411abSDavid Brownell help 505f96411abSDavid Brownell If you say yes here you get support for the RTC on the 506a6b49ffdSBalaji T K TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms. 507f96411abSDavid Brownell 508f96411abSDavid Brownell This driver can also be built as a module. If so, the module 509a6b49ffdSBalaji T K will be called rtc-twl. 510f96411abSDavid Brownell 511d084885eSSoren Brinkmannconfig RTC_DRV_PALMAS 512d084885eSSoren Brinkmann tristate "TI Palmas RTC driver" 513d084885eSSoren Brinkmann depends on MFD_PALMAS 514d084885eSSoren Brinkmann help 515d084885eSSoren Brinkmann If you say yes here you get support for the RTC of TI PALMA series PMIC 516d084885eSSoren Brinkmann chips. 517d084885eSSoren Brinkmann 518d084885eSSoren Brinkmann This driver can also be built as a module. If so, the module 519d084885eSSoren Brinkmann will be called rtc-palma. 520d084885eSSoren Brinkmann 521dc59ed38SLaxman Dewanganconfig RTC_DRV_TPS6586X 522dc59ed38SLaxman Dewangan tristate "TI TPS6586X RTC driver" 523dc59ed38SLaxman Dewangan depends on MFD_TPS6586X 524dc59ed38SLaxman Dewangan help 525a895d57dSMasanari Iida TI Power Management IC TPS6586X supports RTC functionality 526dc59ed38SLaxman Dewangan along with alarm. This driver supports the RTC driver for 527dc59ed38SLaxman Dewangan the TPS6586X RTC module. 528dc59ed38SLaxman Dewangan 5290e783980SVenu Byravarasuconfig RTC_DRV_TPS65910 5300e783980SVenu Byravarasu tristate "TI TPS65910 RTC driver" 5310e783980SVenu Byravarasu depends on RTC_CLASS && MFD_TPS65910 5320e783980SVenu Byravarasu help 5330e783980SVenu Byravarasu If you say yes here you get support for the RTC on the 5340e783980SVenu Byravarasu TPS65910 chips. 5350e783980SVenu Byravarasu 5360e783980SVenu Byravarasu This driver can also be built as a module. If so, the module 5370e783980SVenu Byravarasu will be called rtc-tps65910. 5380e783980SVenu Byravarasu 53936d61824SLaxman Dewanganconfig RTC_DRV_TPS80031 54036d61824SLaxman Dewangan tristate "TI TPS80031/TPS80032 RTC driver" 54136d61824SLaxman Dewangan depends on MFD_TPS80031 54236d61824SLaxman Dewangan help 543a895d57dSMasanari Iida TI Power Management IC TPS80031 supports RTC functionality 54436d61824SLaxman Dewangan along with alarm. This driver supports the RTC driver for 54536d61824SLaxman Dewangan the TPS80031 RTC module. 54636d61824SLaxman Dewangan 54790829c08SVenu Byravarasuconfig RTC_DRV_RC5T583 54890829c08SVenu Byravarasu tristate "RICOH 5T583 RTC driver" 54990829c08SVenu Byravarasu depends on MFD_RC5T583 55090829c08SVenu Byravarasu help 55190829c08SVenu Byravarasu If you say yes here you get support for the RTC on the 55290829c08SVenu Byravarasu RICOH 5T583 chips. 55390829c08SVenu Byravarasu 55490829c08SVenu Byravarasu This driver can also be built as a module. If so, the module 55590829c08SVenu Byravarasu will be called rtc-rc5t583. 55690829c08SVenu Byravarasu 557c46288b0SByron Bradleyconfig RTC_DRV_S35390A 558c46288b0SByron Bradley tristate "Seiko Instruments S-35390A" 559d479540dSRandy Dunlap select BITREVERSE 560c46288b0SByron Bradley help 561c46288b0SByron Bradley If you say yes here you will get support for the Seiko 562c46288b0SByron Bradley Instruments S-35390A. 563c46288b0SByron Bradley 564c46288b0SByron Bradley This driver can also be built as a module. If so the module 565c46288b0SByron Bradley will be called rtc-s35390a. 566c46288b0SByron Bradley 567c6d8f400SSergey Lapinconfig RTC_DRV_FM3130 568c6d8f400SSergey Lapin tristate "Ramtron FM3130" 569c6d8f400SSergey Lapin help 570c6d8f400SSergey Lapin If you say Y here you will get support for the 571c6d8f400SSergey Lapin Ramtron FM3130 RTC chips. 572c6d8f400SSergey Lapin Ramtron FM3130 is a chip with two separate devices inside, 573c6d8f400SSergey Lapin RTC clock and FRAM. This driver provides only RTC functionality. 574c6d8f400SSergey Lapin 575c6d8f400SSergey Lapin This driver can also be built as a module. If so the module 576c6d8f400SSergey Lapin will be called rtc-fm3130. 577c6d8f400SSergey Lapin 578ed13d89bSAkshay Bhatconfig RTC_DRV_RX8010 579ed13d89bSAkshay Bhat tristate "Epson RX8010SJ" 580ed13d89bSAkshay Bhat depends on I2C 581ed13d89bSAkshay Bhat help 582ed13d89bSAkshay Bhat If you say yes here you get support for the Epson RX8010SJ RTC 583ed13d89bSAkshay Bhat chip. 584ed13d89bSAkshay Bhat 585ed13d89bSAkshay Bhat This driver can also be built as a module. If so, the module 586ed13d89bSAkshay Bhat will be called rtc-rx8010. 587ed13d89bSAkshay Bhat 588a7fa9851SMartyn Welchconfig RTC_DRV_RX8581 589a7fa9851SMartyn Welch tristate "Epson RX-8581" 590a7fa9851SMartyn Welch help 591a7fa9851SMartyn Welch If you say yes here you will get support for the Epson RX-8581. 592a7fa9851SMartyn Welch 593a7fa9851SMartyn Welch This driver can also be built as a module. If so the module 594a7fa9851SMartyn Welch will be called rtc-rx8581. 595a7fa9851SMartyn Welch 5963c2b9075SWolfgang Grandeggerconfig RTC_DRV_RX8025 5973c2b9075SWolfgang Grandegger tristate "Epson RX-8025SA/NB" 5983c2b9075SWolfgang Grandegger help 5993c2b9075SWolfgang Grandegger If you say yes here you get support for the Epson 6003c2b9075SWolfgang Grandegger RX-8025SA/NB RTC chips. 6013c2b9075SWolfgang Grandegger 6023c2b9075SWolfgang Grandegger This driver can also be built as a module. If so, the module 6033c2b9075SWolfgang Grandegger will be called rtc-rx8025. 6043c2b9075SWolfgang Grandegger 605ae3551f9SMike Rapoportconfig RTC_DRV_EM3027 606ae3551f9SMike Rapoport tristate "EM Microelectronic EM3027" 607ae3551f9SMike Rapoport help 608ae3551f9SMike Rapoport If you say yes here you get support for the EM 609ae3551f9SMike Rapoport Microelectronic EM3027 RTC chips. 610ae3551f9SMike Rapoport 611ae3551f9SMike Rapoport This driver can also be built as a module. If so, the module 612ae3551f9SMike Rapoport will be called rtc-em3027. 613ae3551f9SMike Rapoport 6141e3929efSAlexandre Belloniconfig RTC_DRV_RV8803 61534166a00SBenoît Thébaudeau tristate "Micro Crystal RV8803, Epson RX8900" 6161e3929efSAlexandre Belloni help 61734166a00SBenoît Thébaudeau If you say yes here you get support for the Micro Crystal RV8803 and 61834166a00SBenoît Thébaudeau Epson RX8900 RTC chips. 6191e3929efSAlexandre Belloni 6201e3929efSAlexandre Belloni This driver can also be built as a module. If so, the module 6211e3929efSAlexandre Belloni will be called rtc-rv8803. 6221e3929efSAlexandre Belloni 6235bccae6eSSangbeom Kimconfig RTC_DRV_S5M 6240c5deb1eSKrzysztof Kozlowski tristate "Samsung S2M/S5M series" 625959df777SKrzysztof Kozlowski depends on MFD_SEC_CORE || COMPILE_TEST 626959df777SKrzysztof Kozlowski select REGMAP_IRQ 6275bccae6eSSangbeom Kim help 6285bccae6eSSangbeom Kim If you say yes here you will get support for the 6290c5deb1eSKrzysztof Kozlowski RTC of Samsung S2MPS14 and S5M PMIC series. 6305bccae6eSSangbeom Kim 6315bccae6eSSangbeom Kim This driver can also be built as a module. If so, the module 6325bccae6eSSangbeom Kim will be called rtc-s5m. 6335bccae6eSSangbeom Kim 634bb35fb20SJan Engelhardtendif # I2C 635bb35fb20SJan Engelhardt 63609a21e56SAlessandro Zummocomment "SPI RTC drivers" 637bb35fb20SJan Engelhardt 638bb35fb20SJan Engelhardtif SPI_MASTER 63909a21e56SAlessandro Zummo 64074d34d4bSVoss, Nikolausconfig RTC_DRV_M41T93 64174d34d4bSVoss, Nikolaus tristate "ST M41T93" 64274d34d4bSVoss, Nikolaus help 64374d34d4bSVoss, Nikolaus If you say yes here you will get support for the 64474d34d4bSVoss, Nikolaus ST M41T93 SPI RTC chip. 64574d34d4bSVoss, Nikolaus 64674d34d4bSVoss, Nikolaus This driver can also be built as a module. If so, the module 64774d34d4bSVoss, Nikolaus will be called rtc-m41t93. 64874d34d4bSVoss, Nikolaus 6498fc2c767SKim B. Heinoconfig RTC_DRV_M41T94 6508fc2c767SKim B. Heino tristate "ST M41T94" 6518fc2c767SKim B. Heino help 6528fc2c767SKim B. Heino If you say yes here you will get support for the 6538fc2c767SKim B. Heino ST M41T94 SPI RTC chip. 6548fc2c767SKim B. Heino 6558fc2c767SKim B. Heino This driver can also be built as a module. If so, the module 6568fc2c767SKim B. Heino will be called rtc-m41t94. 6578fc2c767SKim B. Heino 658d25a5ed3SSergey Yanovichconfig RTC_DRV_DS1302 659d25a5ed3SSergey Yanovich tristate "Dallas/Maxim DS1302" 660d25a5ed3SSergey Yanovich depends on SPI 661d25a5ed3SSergey Yanovich help 662d25a5ed3SSergey Yanovich If you say yes here you get support for the Dallas DS1302 RTC chips. 663d25a5ed3SSergey Yanovich 664d25a5ed3SSergey Yanovich This driver can also be built as a module. If so, the module 665d25a5ed3SSergey Yanovich will be called rtc-ds1302. 666d25a5ed3SSergey Yanovich 66753e84b67SDavid Brownellconfig RTC_DRV_DS1305 66853e84b67SDavid Brownell tristate "Dallas/Maxim DS1305/DS1306" 66953e84b67SDavid Brownell help 67053e84b67SDavid Brownell Select this driver to get support for the Dallas/Maxim DS1305 67153e84b67SDavid Brownell and DS1306 real time clock chips. These support a trickle 67253e84b67SDavid Brownell charger, alarms, and NVRAM in addition to the clock. 67353e84b67SDavid Brownell 67453e84b67SDavid Brownell This driver can also be built as a module. If so, the module 67553e84b67SDavid Brownell will be called rtc-ds1305. 67653e84b67SDavid Brownell 6771d6316f5SRaghavendra Ganigaconfig RTC_DRV_DS1343 6780dd449b1SRaghavendra Ganiga select REGMAP_SPI 6791d6316f5SRaghavendra Ganiga tristate "Dallas/Maxim DS1343/DS1344" 6801d6316f5SRaghavendra Ganiga help 6811d6316f5SRaghavendra Ganiga If you say yes here you get support for the 6821d6316f5SRaghavendra Ganiga Dallas/Maxim DS1343 and DS1344 real time clock chips. 6831d6316f5SRaghavendra Ganiga Support for trickle charger, alarm is provided. 6841d6316f5SRaghavendra Ganiga 6851d6316f5SRaghavendra Ganiga This driver can also be built as a module. If so, the module 6861d6316f5SRaghavendra Ganiga will be called rtc-ds1343. 6871d6316f5SRaghavendra Ganiga 688617b26a0SRaghavendra Ganigaconfig RTC_DRV_DS1347 689ee85bb5bSRaghavendra Ganiga select REGMAP_SPI 690617b26a0SRaghavendra Ganiga tristate "Dallas/Maxim DS1347" 691617b26a0SRaghavendra Ganiga help 692617b26a0SRaghavendra Ganiga If you say yes here you get support for the 693617b26a0SRaghavendra Ganiga Dallas/Maxim DS1347 chips. 694617b26a0SRaghavendra Ganiga 695617b26a0SRaghavendra Ganiga This driver only supports the RTC feature, and not other chip 696617b26a0SRaghavendra Ganiga features such as alarms. 697617b26a0SRaghavendra Ganiga 698617b26a0SRaghavendra Ganiga This driver can also be built as a module. If so, the module 699617b26a0SRaghavendra Ganiga will be called rtc-ds1347. 700617b26a0SRaghavendra Ganiga 70106de1808SMark Jacksonconfig RTC_DRV_DS1390 70206de1808SMark Jackson tristate "Dallas/Maxim DS1390/93/94" 70306de1808SMark Jackson help 7047b9b2ef1SAlessandro Zummo If you say yes here you get support for the 7057b9b2ef1SAlessandro Zummo Dallas/Maxim DS1390/93/94 chips. 70606de1808SMark Jackson 707fa395fb8SIvan Grimaldi This driver supports the RTC feature and trickle charging but not 708fa395fb8SIvan Grimaldi other chip features such as alarms. 70906de1808SMark Jackson 71006de1808SMark Jackson This driver can also be built as a module. If so, the module 71106de1808SMark Jackson will be called rtc-ds1390. 71206de1808SMark Jackson 71306776c89SVenkat Prashanth B Uconfig RTC_DRV_MAX6916 71406776c89SVenkat Prashanth B U tristate "Maxim MAX6916" 71506776c89SVenkat Prashanth B U help 71606776c89SVenkat Prashanth B U If you say yes here you will get support for the 71706776c89SVenkat Prashanth B U Maxim MAX6916 SPI RTC chip. 71806776c89SVenkat Prashanth B U 71906776c89SVenkat Prashanth B U This driver only supports the RTC feature, and not other chip 72006776c89SVenkat Prashanth B U features such as alarms. 72106776c89SVenkat Prashanth B U 72206776c89SVenkat Prashanth B U This driver can also be built as a module. If so, the module 72306776c89SVenkat Prashanth B U will be called rtc-max6916. 72406776c89SVenkat Prashanth B U 7252805b969SMagnus Dammconfig RTC_DRV_R9701 7262805b969SMagnus Damm tristate "Epson RTC-9701JE" 7272805b969SMagnus Damm help 7282805b969SMagnus Damm If you say yes here you will get support for the 7292805b969SMagnus Damm Epson RTC-9701JE SPI RTC chip. 7302805b969SMagnus Damm 7312805b969SMagnus Damm This driver can also be built as a module. If so, the module 7322805b969SMagnus Damm will be called rtc-r9701. 7332805b969SMagnus Damm 734d084885eSSoren Brinkmannconfig RTC_DRV_RX4581 735d084885eSSoren Brinkmann tristate "Epson RX-4581" 736d084885eSSoren Brinkmann help 737d084885eSSoren Brinkmann If you say yes here you will get support for the Epson RX-4581. 738d084885eSSoren Brinkmann 739d084885eSSoren Brinkmann This driver can also be built as a module. If so the module 740d084885eSSoren Brinkmann will be called rtc-rx4581. 741d084885eSSoren Brinkmann 742d084885eSSoren Brinkmannconfig RTC_DRV_RX6110 743d084885eSSoren Brinkmann tristate "Epson RX-6110" 744d084885eSSoren Brinkmann select REGMAP_SPI 745d084885eSSoren Brinkmann help 746d084885eSSoren Brinkmann If you say yes here you will get support for the Epson RX-6610. 747d084885eSSoren Brinkmann 748d084885eSSoren Brinkmann This driver can also be built as a module. If so the module 749d084885eSSoren Brinkmann will be called rtc-rx6110. 750d084885eSSoren Brinkmann 75109a21e56SAlessandro Zummoconfig RTC_DRV_RS5C348 75209a21e56SAlessandro Zummo tristate "Ricoh RS5C348A/B" 75309a21e56SAlessandro Zummo help 75409a21e56SAlessandro Zummo If you say yes here you get support for the 75509a21e56SAlessandro Zummo Ricoh RS5C348A and RS5C348B RTC chips. 75609a21e56SAlessandro Zummo 75709a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 75809a21e56SAlessandro Zummo will be called rtc-rs5c348. 75909a21e56SAlessandro Zummo 760d084885eSSoren Brinkmannconfig RTC_DRV_MAX6902 761d084885eSSoren Brinkmann tristate "Maxim MAX6902" 762d084885eSSoren Brinkmann help 763d084885eSSoren Brinkmann If you say yes here you will get support for the 764d084885eSSoren Brinkmann Maxim MAX6902 SPI RTC chip. 765d084885eSSoren Brinkmann 766d084885eSSoren Brinkmann This driver can also be built as a module. If so, the module 767d084885eSSoren Brinkmann will be called rtc-max6902. 768d084885eSSoren Brinkmann 7697f3923a1SChris Vergesconfig RTC_DRV_PCF2123 7707f3923a1SChris Verges tristate "NXP PCF2123" 7717f3923a1SChris Verges help 7727f3923a1SChris Verges If you say yes here you get support for the NXP PCF2123 7737f3923a1SChris Verges RTC chip. 7747f3923a1SChris Verges 7757f3923a1SChris Verges This driver can also be built as a module. If so, the module 7767f3923a1SChris Verges will be called rtc-pcf2123. 7777f3923a1SChris Verges 7781fcbe42cSJosef Gajdusekconfig RTC_DRV_MCP795 7791fcbe42cSJosef Gajdusek tristate "Microchip MCP795" 7801fcbe42cSJosef Gajdusek help 7811fcbe42cSJosef Gajdusek If you say yes here you will get support for the Microchip MCP795. 7821fcbe42cSJosef Gajdusek 7831fcbe42cSJosef Gajdusek This driver can also be built as a module. If so the module 7841fcbe42cSJosef Gajdusek will be called rtc-mcp795. 7851fcbe42cSJosef Gajdusek 786bb35fb20SJan Engelhardtendif # SPI_MASTER 787bb35fb20SJan Engelhardt 788080481f5SAkinobu Mita# 789080481f5SAkinobu Mita# Helper to resolve issues with configs that have SPI enabled but I2C 790080481f5SAkinobu Mita# modular. See SND_SOC_I2C_AND_SPI for more information 791080481f5SAkinobu Mita# 792080481f5SAkinobu Mitaconfig RTC_I2C_AND_SPI 793080481f5SAkinobu Mita tristate 794080481f5SAkinobu Mita default m if I2C=m 795080481f5SAkinobu Mita default y if I2C=y 796080481f5SAkinobu Mita default y if SPI_MASTER=y 797080481f5SAkinobu Mita select REGMAP_I2C if I2C 798080481f5SAkinobu Mita select REGMAP_SPI if SPI_MASTER 799080481f5SAkinobu Mita 800080481f5SAkinobu Mitacomment "SPI and I2C RTC drivers" 801080481f5SAkinobu Mita 802080481f5SAkinobu Mitaconfig RTC_DRV_DS3232 803080481f5SAkinobu Mita tristate "Dallas/Maxim DS3232/DS3234" 804080481f5SAkinobu Mita depends on RTC_I2C_AND_SPI 805080481f5SAkinobu Mita help 806080481f5SAkinobu Mita If you say yes here you get support for Dallas Semiconductor 807080481f5SAkinobu Mita DS3232 and DS3234 real-time clock chips. If an interrupt is associated 808080481f5SAkinobu Mita with the device, the alarm functionality is supported. 809080481f5SAkinobu Mita 810080481f5SAkinobu Mita This driver can also be built as a module. If so, the module 811080481f5SAkinobu Mita will be called rtc-ds3232. 812080481f5SAkinobu Mita 813c35c4195SKirill Esipovconfig RTC_DRV_DS3232_HWMON 814c35c4195SKirill Esipov bool "HWMON support for Dallas/Maxim DS3232/DS3234" 815c35c4195SKirill Esipov depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m) 816c35c4195SKirill Esipov default y 817c35c4195SKirill Esipov help 818c35c4195SKirill Esipov Say Y here if you want to expose temperature sensor data on 819c35c4195SKirill Esipov rtc-ds3232 820c35c4195SKirill Esipov 8219408ec1aSAkinobu Mitaconfig RTC_DRV_PCF2127 8229408ec1aSAkinobu Mita tristate "NXP PCF2127" 8239408ec1aSAkinobu Mita depends on RTC_I2C_AND_SPI 8249408ec1aSAkinobu Mita help 8259408ec1aSAkinobu Mita If you say yes here you get support for the NXP PCF2127/29 RTC 8269408ec1aSAkinobu Mita chips. 8279408ec1aSAkinobu Mita 8289408ec1aSAkinobu Mita This driver can also be built as a module. If so, the module 8299408ec1aSAkinobu Mita will be called rtc-pcf2127. 8309408ec1aSAkinobu Mita 831c2a1c145SMylène Josserandconfig RTC_DRV_RV3029C2 832c2a1c145SMylène Josserand tristate "Micro Crystal RV3029/3049" 833c2a1c145SMylène Josserand depends on RTC_I2C_AND_SPI 834c2a1c145SMylène Josserand help 835c2a1c145SMylène Josserand If you say yes here you get support for the Micro Crystal 836c2a1c145SMylène Josserand RV3029 and RV3049 RTC chips. 837c2a1c145SMylène Josserand 838c2a1c145SMylène Josserand This driver can also be built as a module. If so, the module 839c2a1c145SMylène Josserand will be called rtc-rv3029c2. 840c2a1c145SMylène Josserand 841c2a1c145SMylène Josserandconfig RTC_DRV_RV3029_HWMON 842c2a1c145SMylène Josserand bool "HWMON support for RV3029/3049" 843c2a1c145SMylène Josserand depends on RTC_DRV_RV3029C2 && HWMON 844c2a1c145SMylène Josserand depends on !(RTC_DRV_RV3029C2=y && HWMON=m) 845c2a1c145SMylène Josserand default y 846c2a1c145SMylène Josserand help 847c2a1c145SMylène Josserand Say Y here if you want to expose temperature sensor data on 848c2a1c145SMylène Josserand rtc-rv3029. 849c2a1c145SMylène Josserand 85009a21e56SAlessandro Zummocomment "Platform RTC drivers" 8510c86edc0SAlessandro Zummo 852290cd0f0SChristoph Hellwig# this 'CMOS' RTC driver is arch dependent because it requires 853290cd0f0SChristoph Hellwig# <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a 8547be2c7c9SDavid Brownell# global rtc_lock ... it's not yet just another platform_device. 8557be2c7c9SDavid Brownell 8567be2c7c9SDavid Brownellconfig RTC_DRV_CMOS 85709a21e56SAlessandro Zummo tristate "PC-style 'CMOS'" 8585ee98ab3SArnd Bergmann depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 || MN10300 859c7500900SDavid Brownell default y if X86 860d6faca40SArnd Bergmann select RTC_MC146818_LIB 8617be2c7c9SDavid Brownell help 8627be2c7c9SDavid Brownell Say "yes" here to get direct support for the real time clock 8637be2c7c9SDavid Brownell found in every PC or ACPI-based system, and some other boards. 8647be2c7c9SDavid Brownell Specifically the original MC146818, compatibles like those in 8657be2c7c9SDavid Brownell PC south bridges, the DS12887 or M48T86, some multifunction 8667be2c7c9SDavid Brownell or LPC bus chips, and so on. 8677be2c7c9SDavid Brownell 8687be2c7c9SDavid Brownell Your system will need to define the platform device used by 8697be2c7c9SDavid Brownell this driver, otherwise it won't be accessible. This means 8707be2c7c9SDavid Brownell you can safely enable this driver if you don't know whether 8717be2c7c9SDavid Brownell or not your board has this kind of hardware. 8727be2c7c9SDavid Brownell 8737be2c7c9SDavid Brownell This driver can also be built as a module. If so, the module 8747be2c7c9SDavid Brownell will be called rtc-cmos. 8757be2c7c9SDavid Brownell 87685d0b3a5SRichard Hendersonconfig RTC_DRV_ALPHA 87785d0b3a5SRichard Henderson bool "Alpha PC-style CMOS" 87885d0b3a5SRichard Henderson depends on ALPHA 879d6faca40SArnd Bergmann select RTC_MC146818_LIB 88085d0b3a5SRichard Henderson default y 88185d0b3a5SRichard Henderson help 88285d0b3a5SRichard Henderson Direct support for the real-time clock found on every Alpha 88385d0b3a5SRichard Henderson system, specifically MC146818 compatibles. If in doubt, say Y. 88485d0b3a5SRichard Henderson 8850146f261SFeng Tangconfig RTC_DRV_VRTC 886933b9463SAlan Cox tristate "Virtual RTC for Intel MID platforms" 887933b9463SAlan Cox depends on X86_INTEL_MID 888933b9463SAlan Cox default y if X86_INTEL_MID 8890146f261SFeng Tang 8900146f261SFeng Tang help 8910146f261SFeng Tang Say "yes" here to get direct support for the real time clock 8920146f261SFeng Tang found on Moorestown platforms. The VRTC is a emulated RTC that 8930146f261SFeng Tang derives its clock source from a real RTC in the PMIC. The MC146818 8940146f261SFeng Tang style programming interface is mostly conserved, but any 8950146f261SFeng Tang updates are done via IPC calls to the system controller FW. 8960146f261SFeng Tang 897537739deSThomas Bogendoerferconfig RTC_DRV_DS1216 898537739deSThomas Bogendoerfer tristate "Dallas DS1216" 899bb35fb20SJan Engelhardt depends on SNI_RM 900537739deSThomas Bogendoerfer help 901537739deSThomas Bogendoerfer If you say yes here you get support for the Dallas DS1216 RTC chips. 902537739deSThomas Bogendoerfer 9035f119f29SThomas Bogendoerferconfig RTC_DRV_DS1286 9045f119f29SThomas Bogendoerfer tristate "Dallas DS1286" 905706b632dSChen Gang depends on HAS_IOMEM 9065f119f29SThomas Bogendoerfer help 9075f119f29SThomas Bogendoerfer If you say yes here you get support for the Dallas DS1286 RTC chips. 9085f119f29SThomas Bogendoerfer 9098f26795aSAndrew Sharpconfig RTC_DRV_DS1511 9108f26795aSAndrew Sharp tristate "Dallas DS1511" 911706b632dSChen Gang depends on HAS_IOMEM 9128f26795aSAndrew Sharp help 9138f26795aSAndrew Sharp If you say yes here you get support for the 9148f26795aSAndrew Sharp Dallas DS1511 timekeeping/watchdog chip. 9158f26795aSAndrew Sharp 9168f26795aSAndrew Sharp This driver can also be built as a module. If so, the module 9178f26795aSAndrew Sharp will be called rtc-ds1511. 9188f26795aSAndrew Sharp 9199bf5b4f5SAtsushi Nemotoconfig RTC_DRV_DS1553 92009b6bdb3SAlessandro Zummo tristate "Maxim/Dallas DS1553" 921706b632dSChen Gang depends on HAS_IOMEM 9229bf5b4f5SAtsushi Nemoto help 9239bf5b4f5SAtsushi Nemoto If you say yes here you get support for the 92409b6bdb3SAlessandro Zummo Maxim/Dallas DS1553 timekeeping chip. 9259bf5b4f5SAtsushi Nemoto 9269bf5b4f5SAtsushi Nemoto This driver can also be built as a module. If so, the module 9279bf5b4f5SAtsushi Nemoto will be called rtc-ds1553. 9289bf5b4f5SAtsushi Nemoto 929aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS1685_FAMILY 930aaaf5fbfSJoshua Kinard tristate "Dallas/Maxim DS1685 Family" 931aaaf5fbfSJoshua Kinard help 932aaaf5fbfSJoshua Kinard If you say yes here you get support for the Dallas/Maxim DS1685 933aaaf5fbfSJoshua Kinard family of real time chips. This family includes the DS1685/DS1687, 934aaaf5fbfSJoshua Kinard DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and 935aaaf5fbfSJoshua Kinard DS17885/DS17887 chips. 936aaaf5fbfSJoshua Kinard 937aaaf5fbfSJoshua Kinard This driver can also be built as a module. If so, the module 938aaaf5fbfSJoshua Kinard will be called rtc-ds1685. 939aaaf5fbfSJoshua Kinard 940aaaf5fbfSJoshua Kinardchoice 941aaaf5fbfSJoshua Kinard prompt "Subtype" 942aaaf5fbfSJoshua Kinard depends on RTC_DRV_DS1685_FAMILY 943aaaf5fbfSJoshua Kinard default RTC_DRV_DS1685 944aaaf5fbfSJoshua Kinard 945aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS1685 946aaaf5fbfSJoshua Kinard bool "DS1685/DS1687" 947aaaf5fbfSJoshua Kinard help 948aaaf5fbfSJoshua Kinard This enables support for the Dallas/Maxim DS1685/DS1687 real time 949aaaf5fbfSJoshua Kinard clock chip. 950aaaf5fbfSJoshua Kinard 951aaaf5fbfSJoshua Kinard This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30) 952aaaf5fbfSJoshua Kinard systems, as well as EPPC-405-UC modules by electronic system design 953aaaf5fbfSJoshua Kinard GmbH. 954aaaf5fbfSJoshua Kinard 955aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS1689 956aaaf5fbfSJoshua Kinard bool "DS1689/DS1693" 957aaaf5fbfSJoshua Kinard help 958aaaf5fbfSJoshua Kinard This enables support for the Dallas/Maxim DS1689/DS1693 real time 959aaaf5fbfSJoshua Kinard clock chip. 960aaaf5fbfSJoshua Kinard 961aaaf5fbfSJoshua Kinard This is an older RTC chip, supplanted by the DS1685/DS1687 above, 962aaaf5fbfSJoshua Kinard which supports a few minor features such as Vcc, Vbat, and Power 963aaaf5fbfSJoshua Kinard Cycle counters, plus a customer-specific, 8-byte ROM/Serial number. 964aaaf5fbfSJoshua Kinard 965aaaf5fbfSJoshua Kinard It also works for the even older DS1688/DS1691 RTC chips, which are 966aaaf5fbfSJoshua Kinard virtually the same and carry the same model number. Both chips 967aaaf5fbfSJoshua Kinard have 114 bytes of user NVRAM. 968aaaf5fbfSJoshua Kinard 969aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS17285 970aaaf5fbfSJoshua Kinard bool "DS17285/DS17287" 971aaaf5fbfSJoshua Kinard help 972aaaf5fbfSJoshua Kinard This enables support for the Dallas/Maxim DS17285/DS17287 real time 973aaaf5fbfSJoshua Kinard clock chip. 974aaaf5fbfSJoshua Kinard 975aaaf5fbfSJoshua Kinard This chip features 2kb of extended NV-SRAM. It may possibly be 976aaaf5fbfSJoshua Kinard found in some SGI O2 systems (rare). 977aaaf5fbfSJoshua Kinard 978aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS17485 979aaaf5fbfSJoshua Kinard bool "DS17485/DS17487" 980aaaf5fbfSJoshua Kinard help 981aaaf5fbfSJoshua Kinard This enables support for the Dallas/Maxim DS17485/DS17487 real time 982aaaf5fbfSJoshua Kinard clock chip. 983aaaf5fbfSJoshua Kinard 984aaaf5fbfSJoshua Kinard This chip features 4kb of extended NV-SRAM. 985aaaf5fbfSJoshua Kinard 986aaaf5fbfSJoshua Kinardconfig RTC_DRV_DS17885 987aaaf5fbfSJoshua Kinard bool "DS17885/DS17887" 988aaaf5fbfSJoshua Kinard help 989aaaf5fbfSJoshua Kinard This enables support for the Dallas/Maxim DS17885/DS17887 real time 990aaaf5fbfSJoshua Kinard clock chip. 991aaaf5fbfSJoshua Kinard 992aaaf5fbfSJoshua Kinard This chip features 8kb of extended NV-SRAM. 993aaaf5fbfSJoshua Kinard 994aaaf5fbfSJoshua Kinardendchoice 995aaaf5fbfSJoshua Kinard 996aaaf5fbfSJoshua Kinardconfig RTC_DS1685_PROC_REGS 997aaaf5fbfSJoshua Kinard bool "Display register values in /proc" 998aaaf5fbfSJoshua Kinard depends on RTC_DRV_DS1685_FAMILY && PROC_FS 999aaaf5fbfSJoshua Kinard help 1000aaaf5fbfSJoshua Kinard Enable this to display a readout of all of the RTC registers in 1001aaaf5fbfSJoshua Kinard /proc/drivers/rtc. Keep in mind that this can potentially lead 1002aaaf5fbfSJoshua Kinard to lost interrupts, as reading Control Register C will clear 1003aaaf5fbfSJoshua Kinard all pending IRQ flags. 1004aaaf5fbfSJoshua Kinard 1005aaaf5fbfSJoshua Kinard Unless you are debugging this driver, choose N. 1006aaaf5fbfSJoshua Kinard 1007aaaf5fbfSJoshua Kinardconfig RTC_DS1685_SYSFS_REGS 1008aaaf5fbfSJoshua Kinard bool "SysFS access to RTC register bits" 1009aaaf5fbfSJoshua Kinard depends on RTC_DRV_DS1685_FAMILY && SYSFS 1010aaaf5fbfSJoshua Kinard help 1011aaaf5fbfSJoshua Kinard Enable this to provide access to the RTC control register bits 1012aaaf5fbfSJoshua Kinard in /sys. Some of the bits are read-write, others are read-only. 1013aaaf5fbfSJoshua Kinard 1014aaaf5fbfSJoshua Kinard Keep in mind that reading Control C's bits automatically clears 1015aaaf5fbfSJoshua Kinard all pending IRQ flags - this can cause lost interrupts. 1016aaaf5fbfSJoshua Kinard 1017aaaf5fbfSJoshua Kinard If you know that you need access to these bits, choose Y, Else N. 1018aaaf5fbfSJoshua Kinard 101909b6bdb3SAlessandro Zummoconfig RTC_DRV_DS1742 102009b6bdb3SAlessandro Zummo tristate "Maxim/Dallas DS1742/1743" 1021706b632dSChen Gang depends on HAS_IOMEM 102209b6bdb3SAlessandro Zummo help 102309b6bdb3SAlessandro Zummo If you say yes here you get support for the 102409b6bdb3SAlessandro Zummo Maxim/Dallas DS1742/1743 timekeeping chip. 102509b6bdb3SAlessandro Zummo 102609b6bdb3SAlessandro Zummo This driver can also be built as a module. If so, the module 102709b6bdb3SAlessandro Zummo will be called rtc-ds1742. 102809b6bdb3SAlessandro Zummo 1029ad0200f7SJean Delvareconfig RTC_DRV_DS2404 1030ad0200f7SJean Delvare tristate "Maxim/Dallas DS2404" 1031ad0200f7SJean Delvare help 1032ad0200f7SJean Delvare If you say yes here you get support for the 1033ad0200f7SJean Delvare Dallas DS2404 RTC chip. 1034ad0200f7SJean Delvare 1035ad0200f7SJean Delvare This driver can also be built as a module. If so, the module 1036ad0200f7SJean Delvare will be called rtc-ds2404. 1037ad0200f7SJean Delvare 1038fef931ffSAshish Jangamconfig RTC_DRV_DA9052 1039fef931ffSAshish Jangam tristate "Dialog DA9052/DA9053 RTC" 1040fef931ffSAshish Jangam depends on PMIC_DA9052 1041fef931ffSAshish Jangam help 1042fef931ffSAshish Jangam Say y here to support the RTC driver for Dialog Semiconductor 1043fef931ffSAshish Jangam DA9052-BC and DA9053-AA/Bx PMICs. 1044fef931ffSAshish Jangam 10456920d996SAshish Jangamconfig RTC_DRV_DA9055 10466920d996SAshish Jangam tristate "Dialog Semiconductor DA9055 RTC" 10476920d996SAshish Jangam depends on MFD_DA9055 10486920d996SAshish Jangam help 10496920d996SAshish Jangam If you say yes here you will get support for the 10506920d996SAshish Jangam RTC of the Dialog DA9055 PMIC. 10516920d996SAshish Jangam 10526920d996SAshish Jangam This driver can also be built as a module. If so, the module 10536920d996SAshish Jangam will be called rtc-da9055 10546920d996SAshish Jangam 1055c2a57550SOpensource [Steve Twiss]config RTC_DRV_DA9063 105680ca3277SS Twiss tristate "Dialog Semiconductor DA9063/DA9062 RTC" 105780ca3277SS Twiss depends on MFD_DA9063 || MFD_DA9062 1058c2a57550SOpensource [Steve Twiss] help 1059c2a57550SOpensource [Steve Twiss] If you say yes here you will get support for the RTC subsystem 106080ca3277SS Twiss for the Dialog Semiconductor PMIC chips DA9063 and DA9062. 1061c2a57550SOpensource [Steve Twiss] 1062c2a57550SOpensource [Steve Twiss] This driver can also be built as a module. If so, the module 1063c2a57550SOpensource [Steve Twiss] will be called "rtc-da9063". 1064c2a57550SOpensource [Steve Twiss] 10655e3fd9e5Sdann frazierconfig RTC_DRV_EFI 10665e3fd9e5Sdann frazier tristate "EFI RTC" 10677efe6659SMatt Fleming depends on EFI && !X86 10685e3fd9e5Sdann frazier help 10695e3fd9e5Sdann frazier If you say yes here you will get support for the EFI 10705e3fd9e5Sdann frazier Real Time Clock. 10715e3fd9e5Sdann frazier 10725e3fd9e5Sdann frazier This driver can also be built as a module. If so, the module 10735e3fd9e5Sdann frazier will be called rtc-efi. 10745e3fd9e5Sdann frazier 107502964115SThomas Hommelconfig RTC_DRV_STK17TA8 107602964115SThomas Hommel tristate "Simtek STK17TA8" 1077706b632dSChen Gang depends on HAS_IOMEM 107802964115SThomas Hommel help 107902964115SThomas Hommel If you say yes here you get support for the 108002964115SThomas Hommel Simtek STK17TA8 timekeeping chip. 108102964115SThomas Hommel 108202964115SThomas Hommel This driver can also be built as a module. If so, the module 108302964115SThomas Hommel will be called rtc-stk17ta8. 108402964115SThomas Hommel 108509a21e56SAlessandro Zummoconfig RTC_DRV_M48T86 108609a21e56SAlessandro Zummo tristate "ST M48T86/Dallas DS12887" 108709a21e56SAlessandro Zummo help 108809a21e56SAlessandro Zummo If you say Y here you will get support for the 108909a21e56SAlessandro Zummo ST M48T86 and Dallas DS12887 RTC chips. 109009a21e56SAlessandro Zummo 109109a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 109209a21e56SAlessandro Zummo will be called rtc-m48t86. 109309a21e56SAlessandro Zummo 1094d1dbd82eSThomas Bogendoerferconfig RTC_DRV_M48T35 1095d1dbd82eSThomas Bogendoerfer tristate "ST M48T35" 1096706b632dSChen Gang depends on HAS_IOMEM 1097d1dbd82eSThomas Bogendoerfer help 1098d1dbd82eSThomas Bogendoerfer If you say Y here you will get support for the 1099d1dbd82eSThomas Bogendoerfer ST M48T35 RTC chip. 1100d1dbd82eSThomas Bogendoerfer 1101d1dbd82eSThomas Bogendoerfer This driver can also be built as a module, if so, the module 1102d1dbd82eSThomas Bogendoerfer will be called "rtc-m48t35". 1103d1dbd82eSThomas Bogendoerfer 11042e774c7cSMark Zhanconfig RTC_DRV_M48T59 110594fe7424SKrzysztof Helt tristate "ST M48T59/M48T08/M48T02" 1106706b632dSChen Gang depends on HAS_IOMEM 11072e774c7cSMark Zhan help 11082e774c7cSMark Zhan If you say Y here you will get support for the 110994fe7424SKrzysztof Helt ST M48T59 RTC chip and compatible ST M48T08 and M48T02. 111094fe7424SKrzysztof Helt 111194fe7424SKrzysztof Helt These chips are usually found in Sun SPARC and UltraSPARC 111294fe7424SKrzysztof Helt workstations. 11132e774c7cSMark Zhan 11142e774c7cSMark Zhan This driver can also be built as a module, if so, the module 11152e774c7cSMark Zhan will be called "rtc-m48t59". 11162e774c7cSMark Zhan 11174f9b9bbaSGeert Uytterhoevenconfig RTC_DRV_MSM6242 11184f9b9bbaSGeert Uytterhoeven tristate "Oki MSM6242" 1119706b632dSChen Gang depends on HAS_IOMEM 11204f9b9bbaSGeert Uytterhoeven help 11214f9b9bbaSGeert Uytterhoeven If you say yes here you get support for the Oki MSM6242 11224f9b9bbaSGeert Uytterhoeven timekeeping chip. It is used in some Amiga models (e.g. A2000). 11234f9b9bbaSGeert Uytterhoeven 11244f9b9bbaSGeert Uytterhoeven This driver can also be built as a module. If so, the module 11254f9b9bbaSGeert Uytterhoeven will be called rtc-msm6242. 11264f9b9bbaSGeert Uytterhoeven 1127cca4c231SDavid S. Millerconfig RTC_DRV_BQ4802 1128cca4c231SDavid S. Miller tristate "TI BQ4802" 1129706b632dSChen Gang depends on HAS_IOMEM 1130cca4c231SDavid S. Miller help 1131cca4c231SDavid S. Miller If you say Y here you will get support for the TI 1132cca4c231SDavid S. Miller BQ4802 RTC chip. 1133cca4c231SDavid S. Miller 1134cca4c231SDavid S. Miller This driver can also be built as a module. If so, the module 1135cca4c231SDavid S. Miller will be called rtc-bq4802. 1136cca4c231SDavid S. Miller 11374f672ce2SGeert Uytterhoevenconfig RTC_DRV_RP5C01 11384f672ce2SGeert Uytterhoeven tristate "Ricoh RP5C01" 1139706b632dSChen Gang depends on HAS_IOMEM 11404f672ce2SGeert Uytterhoeven help 11414f672ce2SGeert Uytterhoeven If you say yes here you get support for the Ricoh RP5C01 11424f672ce2SGeert Uytterhoeven timekeeping chip. It is used in some Amiga models (e.g. A3000 11434f672ce2SGeert Uytterhoeven and A4000). 11444f672ce2SGeert Uytterhoeven 11454f672ce2SGeert Uytterhoeven This driver can also be built as a module. If so, the module 11464f672ce2SGeert Uytterhoeven will be called rtc-rp5c01. 11474f672ce2SGeert Uytterhoeven 114809a21e56SAlessandro Zummoconfig RTC_DRV_V3020 114909a21e56SAlessandro Zummo tristate "EM Microelectronic V3020" 115009a21e56SAlessandro Zummo help 115109a21e56SAlessandro Zummo If you say yes here you will get support for the 115209a21e56SAlessandro Zummo EM Microelectronic v3020 RTC chip. 115309a21e56SAlessandro Zummo 115409a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 115509a21e56SAlessandro Zummo will be called rtc-v3020. 115609a21e56SAlessandro Zummo 115735c86bf6SMark Brownconfig RTC_DRV_WM831X 115835c86bf6SMark Brown tristate "Wolfson Microelectronics WM831x RTC" 115935c86bf6SMark Brown depends on MFD_WM831X 116035c86bf6SMark Brown help 116135c86bf6SMark Brown If you say yes here you will get support for the RTC subsystem 116235c86bf6SMark Brown of the Wolfson Microelectronics WM831X series PMICs. 116335c86bf6SMark Brown 116435c86bf6SMark Brown This driver can also be built as a module. If so, the module 116535c86bf6SMark Brown will be called "rtc-wm831x". 116635c86bf6SMark Brown 1167077eaf5bSMark Brownconfig RTC_DRV_WM8350 1168077eaf5bSMark Brown tristate "Wolfson Microelectronics WM8350 RTC" 1169077eaf5bSMark Brown depends on MFD_WM8350 1170077eaf5bSMark Brown help 1171077eaf5bSMark Brown If you say yes here you will get support for the RTC subsystem 1172077eaf5bSMark Brown of the Wolfson Microelectronics WM8350. 1173077eaf5bSMark Brown 1174077eaf5bSMark Brown This driver can also be built as a module. If so, the module 1175077eaf5bSMark Brown will be called "rtc-wm8350". 1176077eaf5bSMark Brown 11770942a71eSRajeev Kumarconfig RTC_DRV_SPEAR 11780942a71eSRajeev Kumar tristate "SPEAR ST RTC" 11797a587eaeSAlexandre Belloni depends on PLAT_SPEAR || COMPILE_TEST 11800942a71eSRajeev Kumar default y 11810942a71eSRajeev Kumar help 11820942a71eSRajeev Kumar If you say Y here you will get support for the RTC found on 11830942a71eSRajeev Kumar spear 11840942a71eSRajeev Kumar 1185eae854b2SBalaji Raoconfig RTC_DRV_PCF50633 1186eae854b2SBalaji Rao depends on MFD_PCF50633 1187eae854b2SBalaji Rao tristate "NXP PCF50633 RTC" 1188eae854b2SBalaji Rao help 1189eae854b2SBalaji Rao If you say yes here you get support for the RTC subsystem of the 1190eae854b2SBalaji Rao NXP PCF50633 used in embedded systems. 1191eae854b2SBalaji Rao 1192bd207cfbSLinus Walleijconfig RTC_DRV_AB3100 1193bd207cfbSLinus Walleij tristate "ST-Ericsson AB3100 RTC" 1194bd207cfbSLinus Walleij depends on AB3100_CORE 1195bd207cfbSLinus Walleij default y if AB3100_CORE 1196bd207cfbSLinus Walleij help 1197bd207cfbSLinus Walleij Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC 1198bd207cfbSLinus Walleij support. This chip contains a battery- and capacitor-backed RTC. 1199bd207cfbSLinus Walleij 12000af62f4dSVirupax Sadashivpetimathconfig RTC_DRV_AB8500 12010af62f4dSVirupax Sadashivpetimath tristate "ST-Ericsson AB8500 RTC" 12020af62f4dSVirupax Sadashivpetimath depends on AB8500_CORE 1203651fb480SUlf Hansson select RTC_INTF_DEV 1204dc43d4a2SRamesh Chandrasekaran select RTC_INTF_DEV_UIE_EMUL 12050af62f4dSVirupax Sadashivpetimath help 12060af62f4dSVirupax Sadashivpetimath Select this to enable the ST-Ericsson AB8500 power management IC RTC 12070af62f4dSVirupax Sadashivpetimath support. This chip contains a battery- and capacitor-backed RTC. 12080af62f4dSVirupax Sadashivpetimath 1209afd49a7eSWan ZongShunconfig RTC_DRV_NUC900 1210afd49a7eSWan ZongShun tristate "NUC910/NUC920 RTC driver" 12117a587eaeSAlexandre Belloni depends on ARCH_W90X900 || COMPILE_TEST 1212afd49a7eSWan ZongShun help 1213afd49a7eSWan ZongShun If you say yes here you get support for the RTC subsystem of the 1214afd49a7eSWan ZongShun NUC910/NUC920 used in embedded systems. 1215bd207cfbSLinus Walleij 121616b1d26eSNeelesh Guptaconfig RTC_DRV_OPAL 121716b1d26eSNeelesh Gupta tristate "IBM OPAL RTC driver" 121816b1d26eSNeelesh Gupta depends on PPC_POWERNV 121916b1d26eSNeelesh Gupta default y 122016b1d26eSNeelesh Gupta help 122116b1d26eSNeelesh Gupta If you say yes here you get support for the PowerNV platform RTC 122216b1d26eSNeelesh Gupta driver based on OPAL interfaces. 122316b1d26eSNeelesh Gupta 122416b1d26eSNeelesh Gupta This driver can also be built as a module. If so, the module 122516b1d26eSNeelesh Gupta will be called rtc-opal. 122616b1d26eSNeelesh Gupta 122711143c19SSuneel Garapaticonfig RTC_DRV_ZYNQMP 122811143c19SSuneel Garapati tristate "Xilinx Zynq Ultrascale+ MPSoC RTC" 122911143c19SSuneel Garapati depends on OF 123011143c19SSuneel Garapati help 123111143c19SSuneel Garapati If you say yes here you get support for the RTC controller found on 123211143c19SSuneel Garapati Xilinx Zynq Ultrascale+ MPSoC. 123311143c19SSuneel Garapati 123409a21e56SAlessandro Zummocomment "on-CPU RTC drivers" 123509a21e56SAlessandro Zummo 1236125e550fSOleksij Rempelconfig RTC_DRV_ASM9260 1237125e550fSOleksij Rempel tristate "Alphascale asm9260 RTC" 12387f742e8eSAlexandre Belloni depends on MACH_ASM9260 || COMPILE_TEST 1239125e550fSOleksij Rempel help 1240125e550fSOleksij Rempel If you say yes here you get support for the RTC on the 1241125e550fSOleksij Rempel Alphascale asm9260 SoC. 1242125e550fSOleksij Rempel 1243125e550fSOleksij Rempel This driver can also be built as a module. If so, the module 1244125e550fSOleksij Rempel will be called rtc-asm9260. 1245125e550fSOleksij Rempel 12468ecf6c54SMiguel Aguilarconfig RTC_DRV_DAVINCI 12478ecf6c54SMiguel Aguilar tristate "TI DaVinci RTC" 12487a587eaeSAlexandre Belloni depends on ARCH_DAVINCI_DM365 || COMPILE_TEST 12498ecf6c54SMiguel Aguilar help 12508ecf6c54SMiguel Aguilar If you say yes here you get support for the RTC on the 12518ecf6c54SMiguel Aguilar DaVinci platforms (DM365). 12528ecf6c54SMiguel Aguilar 12538ecf6c54SMiguel Aguilar This driver can also be built as a module. If so, the module 12548ecf6c54SMiguel Aguilar will be called rtc-davinci. 12558ecf6c54SMiguel Aguilar 1256ba172208SBaruch Siachconfig RTC_DRV_DIGICOLOR 1257ba172208SBaruch Siach tristate "Conexant Digicolor RTC" 12587a587eaeSAlexandre Belloni depends on ARCH_DIGICOLOR || COMPILE_TEST 1259ba172208SBaruch Siach help 1260ba172208SBaruch Siach If you say yes here you get support for the RTC on Conexant 1261ba172208SBaruch Siach Digicolor platforms. This currently includes the CX92755 SoC. 1262ba172208SBaruch Siach 1263ba172208SBaruch Siach This driver can also be built as a module. If so, the module 1264ba172208SBaruch Siach will be called rtc-digicolor. 1265ba172208SBaruch Siach 1266b224b9acSFabio Estevamconfig RTC_DRV_IMXDI 1267b224b9acSFabio Estevam tristate "Freescale IMX DryIce Real Time Clock" 1268ef216ad0SRoland Stigge depends on ARCH_MXC 1269b224b9acSFabio Estevam help 1270b224b9acSFabio Estevam Support for Freescale IMX DryIce RTC 1271b224b9acSFabio Estevam 1272b224b9acSFabio Estevam This driver can also be built as a module, if so, the module 1273b224b9acSFabio Estevam will be called "rtc-imxdi". 1274b224b9acSFabio Estevam 1275db68b189SDavid Brownellconfig RTC_DRV_OMAP 12768608976eSLokesh Vutla tristate "TI OMAP Real Time Clock" 12777a587eaeSAlexandre Belloni depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST 127897ea1906SMarcin Niestroj depends on OF 127997ea1906SMarcin Niestroj depends on PINCTRL 128097ea1906SMarcin Niestroj select GENERIC_PINCONF 1281db68b189SDavid Brownell help 1282427af9a6SAfzal Mohammed Say "yes" here to support the on chip real time clock 12838608976eSLokesh Vutla present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx. 1284427af9a6SAfzal Mohammed 1285427af9a6SAfzal Mohammed This driver can also be built as a module, if so, module 1286427af9a6SAfzal Mohammed will be called rtc-omap. 1287db68b189SDavid Brownell 128816f4efe7SAtul Dahiyaconfig HAVE_S3C_RTC 128916f4efe7SAtul Dahiya bool 129016f4efe7SAtul Dahiya help 129116f4efe7SAtul Dahiya This will include RTC support for Samsung SoCs. If 129216f4efe7SAtul Dahiya you want to include RTC support for any machine, kindly 129316f4efe7SAtul Dahiya select this in the respective mach-XXXX/Kconfig file. 129416f4efe7SAtul Dahiya 12951add6781SBen Dooksconfig RTC_DRV_S3C 12961add6781SBen Dooks tristate "Samsung S3C series SoC RTC" 12977a587eaeSAlexandre Belloni depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST 12981add6781SBen Dooks help 12991add6781SBen Dooks RTC (Realtime Clock) driver for the clock inbuilt into the 13001add6781SBen Dooks Samsung S3C24XX series of SoCs. This can provide periodic 13011add6781SBen Dooks interrupt rates from 1Hz to 64Hz for user programs, and 13021add6781SBen Dooks wakeup from Alarm. 13031add6781SBen Dooks 13041add6781SBen Dooks The driver currently supports the common features on all the 13051add6781SBen Dooks S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440 13061add6781SBen Dooks and S3C2442. 13071add6781SBen Dooks 13081add6781SBen Dooks This driver can also be build as a module. If so, the module 13091add6781SBen Dooks will be called rtc-s3c. 13101add6781SBen Dooks 1311fd507e2fSAlessandro Zummoconfig RTC_DRV_EP93XX 1312fd507e2fSAlessandro Zummo tristate "Cirrus Logic EP93XX" 13137a587eaeSAlexandre Belloni depends on ARCH_EP93XX || COMPILE_TEST 1314fd507e2fSAlessandro Zummo help 1315fd507e2fSAlessandro Zummo If you say yes here you get support for the 1316fd507e2fSAlessandro Zummo RTC embedded in the Cirrus Logic EP93XX processors. 1317fd507e2fSAlessandro Zummo 1318fd507e2fSAlessandro Zummo This driver can also be built as a module. If so, the module 1319fd507e2fSAlessandro Zummo will be called rtc-ep93xx. 1320fd507e2fSAlessandro Zummo 1321e842f1c8SRichard Purdieconfig RTC_DRV_SA1100 13223888c090SHaojian Zhuang tristate "SA11x0/PXA2xx/PXA910" 13233888c090SHaojian Zhuang depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP 1324e842f1c8SRichard Purdie help 1325e842f1c8SRichard Purdie If you say Y here you will get access to the real time clock 1326e842f1c8SRichard Purdie built into your SA11x0 or PXA2xx CPU. 1327e842f1c8SRichard Purdie 1328e842f1c8SRichard Purdie To compile this driver as a module, choose M here: the 1329e842f1c8SRichard Purdie module will be called rtc-sa1100. 1330fd507e2fSAlessandro Zummo 1331317a6104SPaul Mundtconfig RTC_DRV_SH 1332317a6104SPaul Mundt tristate "SuperH On-Chip RTC" 1333dab5aec6SChris Brandt depends on SUPERH || ARCH_RENESAS 1334317a6104SPaul Mundt help 1335317a6104SPaul Mundt Say Y here to enable support for the on-chip RTC found in 1336dab5aec6SChris Brandt most SuperH processors. This RTC is also found in RZ/A SoCs. 1337317a6104SPaul Mundt 1338317a6104SPaul Mundt To compile this driver as a module, choose M here: the 1339317a6104SPaul Mundt module will be called rtc-sh. 1340317a6104SPaul Mundt 13418417eb7aSYoichi Yuasaconfig RTC_DRV_VR41XX 13423e16f6afSAlessandro Zummo tristate "NEC VR41XX" 13437a587eaeSAlexandre Belloni depends on CPU_VR41XX || COMPILE_TEST 13443e16f6afSAlessandro Zummo help 13453e16f6afSAlessandro Zummo If you say Y here you will get access to the real time clock 13463e16f6afSAlessandro Zummo built into your NEC VR41XX CPU. 13473e16f6afSAlessandro Zummo 13483e16f6afSAlessandro Zummo To compile this driver as a module, choose M here: the 13493e16f6afSAlessandro Zummo module will be called rtc-vr41xx. 13508417eb7aSYoichi Yuasa 1351a190901cSRussell Kingconfig RTC_DRV_PL030 1352a190901cSRussell King tristate "ARM AMBA PL030 RTC" 1353a190901cSRussell King depends on ARM_AMBA 1354a190901cSRussell King help 1355a190901cSRussell King If you say Y here you will get access to ARM AMBA 1356a190901cSRussell King PrimeCell PL030 RTC found on certain ARM SOCs. 1357a190901cSRussell King 1358a190901cSRussell King To compile this driver as a module, choose M here: the 1359a190901cSRussell King module will be called rtc-pl030. 1360a190901cSRussell King 13618ae6e163SDeepak Saxenaconfig RTC_DRV_PL031 13628ae6e163SDeepak Saxena tristate "ARM AMBA PL031 RTC" 1363bb35fb20SJan Engelhardt depends on ARM_AMBA 13648ae6e163SDeepak Saxena help 13658ae6e163SDeepak Saxena If you say Y here you will get access to ARM AMBA 136609a21e56SAlessandro Zummo PrimeCell PL031 RTC found on certain ARM SOCs. 13678ae6e163SDeepak Saxena 13688ae6e163SDeepak Saxena To compile this driver as a module, choose M here: the 13698ae6e163SDeepak Saxena module will be called rtc-pl031. 13708ae6e163SDeepak Saxena 1371fa04e78bSHans-Christian Egtvedtconfig RTC_DRV_AT32AP700X 1372fa04e78bSHans-Christian Egtvedt tristate "AT32AP700X series RTC" 13737a587eaeSAlexandre Belloni depends on PLATFORM_AT32AP || COMPILE_TEST 1374fa04e78bSHans-Christian Egtvedt help 1375fa04e78bSHans-Christian Egtvedt Driver for the internal RTC (Realtime Clock) on Atmel AVR32 1376fa04e78bSHans-Christian Egtvedt AT32AP700x family processors. 1377fa04e78bSHans-Christian Egtvedt 13787fc39f6dSAndrew Victorconfig RTC_DRV_AT91RM9200 137924cecc1bSNicolas Ferre tristate "AT91RM9200 or some AT91SAM9 RTC" 13807a587eaeSAlexandre Belloni depends on ARCH_AT91 || COMPILE_TEST 1381788b1fc6SAndrew Victor help 13824cdf854fSDavid Brownell Driver for the internal RTC (Realtime Clock) module found on 138324cecc1bSNicolas Ferre Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips 13844cdf854fSDavid Brownell this is powered by the backup power supply. 13854cdf854fSDavid Brownell 13864cdf854fSDavid Brownellconfig RTC_DRV_AT91SAM9 13873969eb48SBoris BREZILLON tristate "AT91SAM9 RTT as RTC" 13887a587eaeSAlexandre Belloni depends on ARCH_AT91 || COMPILE_TEST 138943e112bbSBoris BREZILLON select MFD_SYSCON 13904cdf854fSDavid Brownell help 13913969eb48SBoris BREZILLON Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which 13923969eb48SBoris BREZILLON can be used as an RTC thanks to the backup power supply (e.g. a 13933969eb48SBoris BREZILLON small coin cell battery) which keeps this block and the GPBR 13943969eb48SBoris BREZILLON (General Purpose Backup Registers) block powered when the device 13953969eb48SBoris BREZILLON is shutdown. 13963969eb48SBoris BREZILLON Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd 13973969eb48SBoris BREZILLON probably want to use the real RTC block instead of the "RTT as an 13983969eb48SBoris BREZILLON RTC" driver. 13994cdf854fSDavid Brownell 140045fd8a0cSManuel Laussconfig RTC_DRV_AU1XXX 140145fd8a0cSManuel Lauss tristate "Au1xxx Counter0 RTC support" 140242a4f17dSManuel Lauss depends on MIPS_ALCHEMY 140345fd8a0cSManuel Lauss help 140445fd8a0cSManuel Lauss This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year 140545fd8a0cSManuel Lauss counter) to be used as a RTC. 140645fd8a0cSManuel Lauss 140745fd8a0cSManuel Lauss This driver can also be built as a module. If so, the module 140845fd8a0cSManuel Lauss will be called rtc-au1xxx. 140945fd8a0cSManuel Lauss 14108cc75c9aSWu, Bryanconfig RTC_DRV_BFIN 14118cc75c9aSWu, Bryan tristate "Blackfin On-Chip RTC" 14127f604599SGraf Yang depends on BLACKFIN && !BF561 14138cc75c9aSWu, Bryan help 14148cc75c9aSWu, Bryan If you say yes here you will get support for the 14158cc75c9aSWu, Bryan Blackfin On-Chip Real Time Clock. 14168cc75c9aSWu, Bryan 14178cc75c9aSWu, Bryan This driver can also be built as a module. If so, the module 14188cc75c9aSWu, Bryan will be called rtc-bfin. 14198cc75c9aSWu, Bryan 1420e9f2bd81SNobuhiro Iwamatsuconfig RTC_DRV_RS5C313 1421e9f2bd81SNobuhiro Iwamatsu tristate "Ricoh RS5C313" 1422bb35fb20SJan Engelhardt depends on SH_LANDISK 1423e9f2bd81SNobuhiro Iwamatsu help 1424e9f2bd81SNobuhiro Iwamatsu If you say yes here you get support for the Ricoh RS5C313 RTC chips. 1425e9f2bd81SNobuhiro Iwamatsu 14263afe6d04SGeert Uytterhoevenconfig RTC_DRV_GENERIC 14273afe6d04SGeert Uytterhoeven tristate "Generic RTC support" 14283afe6d04SGeert Uytterhoeven # Please consider writing a new RTC driver instead of using the generic 14293afe6d04SGeert Uytterhoeven # RTC abstraction 14307a587eaeSAlexandre Belloni depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST 14319eb16864SKyle McMartin help 14323afe6d04SGeert Uytterhoeven Say Y or M here to enable RTC support on systems using the generic 14333afe6d04SGeert Uytterhoeven RTC abstraction. If you do not know what you are doing, you should 14349eb16864SKyle McMartin just say Y. 14359eb16864SKyle McMartin 1436dc944368SRobert Jarzmikconfig RTC_DRV_PXA 1437dc944368SRobert Jarzmik tristate "PXA27x/PXA3xx" 1438dc944368SRobert Jarzmik depends on ARCH_PXA 14393cdf4ad9SRob Herring select RTC_DRV_SA1100 1440dc944368SRobert Jarzmik help 1441dc944368SRobert Jarzmik If you say Y here you will get access to the real time clock 14423cdf4ad9SRob Herring built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs 14433cdf4ad9SRob Herring consisting of an SA1100 compatible RTC and the extended PXA RTC. 1444dc944368SRobert Jarzmik 1445dc944368SRobert Jarzmik This RTC driver uses PXA RTC registers available since pxa27x 1446dc944368SRobert Jarzmik series (RDxR, RYxR) instead of legacy RCNR, RTAR. 1447dc944368SRobert Jarzmik 1448f77fbdf9SAlexey Charkovconfig RTC_DRV_VT8500 1449f77fbdf9SAlexey Charkov tristate "VIA/WonderMedia 85xx SoC RTC" 14507a587eaeSAlexandre Belloni depends on ARCH_VT8500 || COMPILE_TEST 1451f77fbdf9SAlexey Charkov help 1452f77fbdf9SAlexey Charkov If you say Y here you will get access to the real time clock 1453f77fbdf9SAlexey Charkov built into your VIA VT8500 SoC or its relatives. 1454f77fbdf9SAlexey Charkov 1455dc944368SRobert Jarzmik 14567a138edeSDavid S. Millerconfig RTC_DRV_SUN4V 14577a138edeSDavid S. Miller bool "SUN4V Hypervisor RTC" 14587a138edeSDavid S. Miller depends on SPARC64 14597a138edeSDavid S. Miller help 14607a138edeSDavid S. Miller If you say Y here you will get support for the Hypervisor 14617a138edeSDavid S. Miller based RTC on SUN4V systems. 14627a138edeSDavid S. Miller 14639765d2d9SChen-Yu Tsaiconfig RTC_DRV_SUN6I 146437539414SMaxime Ripard bool "Allwinner A31 RTC" 146593946c49SAlexandre Belloni default MACH_SUN6I || MACH_SUN8I 146693946c49SAlexandre Belloni depends on COMMON_CLK 146793946c49SAlexandre Belloni depends on ARCH_SUNXI || COMPILE_TEST 14689765d2d9SChen-Yu Tsai help 14692863934eSAndre Przywara If you say Y here you will get support for the RTC found in 14702863934eSAndre Przywara some Allwinner SoCs like the A31 or the A64. 14719765d2d9SChen-Yu Tsai 1472594c6fb9SCarlo Caioneconfig RTC_DRV_SUNXI 1473594c6fb9SCarlo Caione tristate "Allwinner sun4i/sun7i RTC" 14747a587eaeSAlexandre Belloni depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST 1475594c6fb9SCarlo Caione help 1476594c6fb9SCarlo Caione If you say Y here you will get support for the RTC found on 1477594c6fb9SCarlo Caione Allwinner A10/A20. 1478594c6fb9SCarlo Caione 1479de2cf332SDavid S. Millerconfig RTC_DRV_STARFIRE 1480de2cf332SDavid S. Miller bool "Starfire RTC" 1481de2cf332SDavid S. Miller depends on SPARC64 1482de2cf332SDavid S. Miller help 1483de2cf332SDavid S. Miller If you say Y here you will get support for the RTC found on 1484de2cf332SDavid S. Miller Starfire systems. 1485de2cf332SDavid S. Miller 14860e149233SAtsushi Nemotoconfig RTC_DRV_TX4939 14870e149233SAtsushi Nemoto tristate "TX4939 SoC" 14880e149233SAtsushi Nemoto depends on SOC_TX4939 14890e149233SAtsushi Nemoto help 14900e149233SAtsushi Nemoto Driver for the internal RTC (Realtime Clock) module found on 14910e149233SAtsushi Nemoto Toshiba TX4939 SoC. 14920e149233SAtsushi Nemoto 1493defb4514SSaeed Bisharaconfig RTC_DRV_MV 1494defb4514SSaeed Bishara tristate "Marvell SoC RTC" 14957a587eaeSAlexandre Belloni depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST 1496defb4514SSaeed Bishara help 1497defb4514SSaeed Bishara If you say yes here you will get support for the in-chip RTC 1498defb4514SSaeed Bishara that can be found in some of Marvell's SoC devices, such as 1499defb4514SSaeed Bishara the Kirkwood 88F6281 and 88F6192. 1500defb4514SSaeed Bishara 1501defb4514SSaeed Bishara This driver can also be built as a module. If so, the module 1502defb4514SSaeed Bishara will be called rtc-mv. 1503defb4514SSaeed Bishara 1504a3a42806SGregory CLEMENTconfig RTC_DRV_ARMADA38X 1505a3a42806SGregory CLEMENT tristate "Armada 38x Marvell SoC RTC" 15067a587eaeSAlexandre Belloni depends on ARCH_MVEBU || COMPILE_TEST 1507a3a42806SGregory CLEMENT help 1508a3a42806SGregory CLEMENT If you say yes here you will get support for the in-chip RTC 1509a3a42806SGregory CLEMENT that can be found in the Armada 38x Marvell's SoC device 1510a3a42806SGregory CLEMENT 1511a3a42806SGregory CLEMENT This driver can also be built as a module. If so, the module 1512a3a42806SGregory CLEMENT will be called armada38x-rtc. 1513a3a42806SGregory CLEMENT 15141d61d259SLinus Walleijconfig RTC_DRV_FTRTC010 15151d61d259SLinus Walleij tristate "Faraday Technology FTRTC010 RTC" 151698a9bb5bSHans Ulli Kroll depends on HAS_IOMEM 15171d61d259SLinus Walleij default ARCH_GEMINI 151898a9bb5bSHans Ulli Kroll help 151998a9bb5bSHans Ulli Kroll If you say Y here you will get support for the 15201d61d259SLinus Walleij Faraday Technolog FTRTC010 found on e.g. Gemini SoC's. 152198a9bb5bSHans Ulli Kroll 152298a9bb5bSHans Ulli Kroll This driver can also be built as a module. If so, the module 15231d61d259SLinus Walleij will be called rtc-ftrtc010. 152498a9bb5bSHans Ulli Kroll 15250b5f037aSGeert Uytterhoevenconfig RTC_DRV_PS3 15260b5f037aSGeert Uytterhoeven tristate "PS3 RTC" 15270b5f037aSGeert Uytterhoeven depends on PPC_PS3 15280b5f037aSGeert Uytterhoeven help 15290b5f037aSGeert Uytterhoeven If you say yes here you will get support for the RTC on PS3. 15300b5f037aSGeert Uytterhoeven 15310b5f037aSGeert Uytterhoeven This driver can also be built as a module. If so, the module 15320b5f037aSGeert Uytterhoeven will be called rtc-ps3. 15330b5f037aSGeert Uytterhoeven 1534aa958f57SLinus Walleijconfig RTC_DRV_COH901331 1535aa958f57SLinus Walleij tristate "ST-Ericsson COH 901 331 RTC" 15367a587eaeSAlexandre Belloni depends on ARCH_U300 || COMPILE_TEST 1537aa958f57SLinus Walleij help 1538aa958f57SLinus Walleij If you say Y here you will get access to ST-Ericsson 1539aa958f57SLinus Walleij COH 901 331 RTC clock found in some ST-Ericsson Mobile 1540aa958f57SLinus Walleij Platforms. 1541aa958f57SLinus Walleij 1542aa958f57SLinus Walleij This driver can also be built as a module. If so, the module 1543aa958f57SLinus Walleij will be called "rtc-coh901331". 1544aa958f57SLinus Walleij 1545aa958f57SLinus Walleij 1546df17f631Sdmitry pervushinconfig RTC_DRV_STMP 154746b21218SWolfram Sang tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC" 15487a587eaeSAlexandre Belloni depends on ARCH_MXS || COMPILE_TEST 154920d048acSAlexandre Belloni select STMP_DEVICE 1550df17f631Sdmitry pervushin help 1551df17f631Sdmitry pervushin If you say yes here you will get support for the onboard 155246b21218SWolfram Sang STMP3xxx/i.MX23/i.MX28 RTC. 1553df17f631Sdmitry pervushin 1554df17f631Sdmitry pervushin This driver can also be built as a module. If so, the module 1555df17f631Sdmitry pervushin will be called rtc-stmp3xxx. 1556df17f631Sdmitry pervushin 1557d3c7a3f7SDaniel Ribeiroconfig RTC_DRV_PCAP 1558d3c7a3f7SDaniel Ribeiro tristate "PCAP RTC" 1559d3c7a3f7SDaniel Ribeiro depends on EZX_PCAP 1560d3c7a3f7SDaniel Ribeiro help 1561d3c7a3f7SDaniel Ribeiro If you say Y here you will get support for the RTC found on 1562d3c7a3f7SDaniel Ribeiro the PCAP2 ASIC used on some Motorola phones. 1563d3c7a3f7SDaniel Ribeiro 15641c97872bSUwe Kleine-Königconfig RTC_DRV_MC13XXX 15651c97872bSUwe Kleine-König depends on MFD_MC13XXX 15661c97872bSUwe Kleine-König tristate "Freescale MC13xxx RTC" 156743299f28SUwe Kleine-König help 15681c97872bSUwe Kleine-König This enables support for the RTCs found on Freescale's PMICs 15691c97872bSUwe Kleine-König MC13783 and MC13892. 157043299f28SUwe Kleine-König 157150aae724SAnatolij Gustschinconfig RTC_DRV_MPC5121 157250aae724SAnatolij Gustschin tristate "Freescale MPC5121 built-in RTC" 1573955dbea3SDmitry Eremin-Solenikov depends on PPC_MPC512x || PPC_MPC52xx 157450aae724SAnatolij Gustschin help 157550aae724SAnatolij Gustschin If you say yes here you will get support for the 1576955dbea3SDmitry Eremin-Solenikov built-in RTC on MPC5121 or on MPC5200. 157750aae724SAnatolij Gustschin 157850aae724SAnatolij Gustschin This driver can also be built as a module. If so, the module 157950aae724SAnatolij Gustschin will be called rtc-mpc5121. 158050aae724SAnatolij Gustschin 15813bf0eea8SLars-Peter Clausenconfig RTC_DRV_JZ4740 1582586655d2SAlexandre Belloni tristate "Ingenic JZ4740 SoC" 1583cd563200SPaul Cercueil depends on MACH_INGENIC || COMPILE_TEST 15843bf0eea8SLars-Peter Clausen help 1585cd563200SPaul Cercueil If you say yes here you get support for the Ingenic JZ47xx SoCs RTC 1586cd563200SPaul Cercueil controllers. 15873bf0eea8SLars-Peter Clausen 1588586655d2SAlexandre Belloni This driver can also be buillt as a module. If so, the module 1589586655d2SAlexandre Belloni will be called rtc-jz4740. 1590586655d2SAlexandre Belloni 1591c28b42e3SJoachim Eastwoodconfig RTC_DRV_LPC24XX 1592c28b42e3SJoachim Eastwood tristate "NXP RTC for LPC178x/18xx/408x/43xx" 1593c28b42e3SJoachim Eastwood depends on ARCH_LPC18XX || COMPILE_TEST 1594c28b42e3SJoachim Eastwood depends on OF && HAS_IOMEM 1595c28b42e3SJoachim Eastwood help 1596c28b42e3SJoachim Eastwood This enables support for the NXP RTC found which can be found on 1597c28b42e3SJoachim Eastwood NXP LPC178x/18xx/408x/43xx devices. 1598c28b42e3SJoachim Eastwood 1599c28b42e3SJoachim Eastwood If you have one of the devices above enable this driver to use 160072d3d79fSAlexandre Belloni the hardware RTC. This driver can also be built as a module. If 1601c28b42e3SJoachim Eastwood so, the module will be called rtc-lpc24xx. 1602c28b42e3SJoachim Eastwood 16039aa449beSKevin Wellsconfig RTC_DRV_LPC32XX 16047a587eaeSAlexandre Belloni depends on ARCH_LPC32XX || COMPILE_TEST 16059aa449beSKevin Wells tristate "NXP LPC32XX RTC" 16069aa449beSKevin Wells help 16079aa449beSKevin Wells This enables support for the NXP RTC in the LPC32XX 16089aa449beSKevin Wells 160972d3d79fSAlexandre Belloni This driver can also be built as a module. If so, the module 16109aa449beSKevin Wells will be called rtc-lpc32xx. 16119aa449beSKevin Wells 16129a9a54adSAnirudh Ghayalconfig RTC_DRV_PM8XXX 16139a9a54adSAnirudh Ghayal tristate "Qualcomm PMIC8XXX RTC" 16147a587eaeSAlexandre Belloni depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST 16159a9a54adSAnirudh Ghayal help 16169a9a54adSAnirudh Ghayal If you say yes here you get support for the 16179a9a54adSAnirudh Ghayal Qualcomm PMIC8XXX RTC. 16189a9a54adSAnirudh Ghayal 16199a9a54adSAnirudh Ghayal To compile this driver as a module, choose M here: the 16209a9a54adSAnirudh Ghayal module will be called rtc-pm8xxx. 16219a9a54adSAnirudh Ghayal 1622ff859ba6SAndrew Chewconfig RTC_DRV_TEGRA 1623ff859ba6SAndrew Chew tristate "NVIDIA Tegra Internal RTC driver" 16247a587eaeSAlexandre Belloni depends on ARCH_TEGRA || COMPILE_TEST 1625ff859ba6SAndrew Chew help 1626ff859ba6SAndrew Chew If you say yes here you get support for the 1627ff859ba6SAndrew Chew Tegra 200 series internal RTC module. 1628ff859ba6SAndrew Chew 1629ff859ba6SAndrew Chew This drive can also be built as a module. If so, the module 1630ff859ba6SAndrew Chew will be called rtc-tegra. 1631ff859ba6SAndrew Chew 1632dd196a2bSChris Metcalfconfig RTC_DRV_TILE 1633dd196a2bSChris Metcalf tristate "Tilera hypervisor RTC support" 1634dd196a2bSChris Metcalf depends on TILE 1635dd196a2bSChris Metcalf help 1636dd196a2bSChris Metcalf Enable support for the Linux driver side of the Tilera 1637dd196a2bSChris Metcalf hypervisor's real-time clock interface. 1638dd196a2bSChris Metcalf 16392809e80bSGuan Xuetaoconfig RTC_DRV_PUV3 16402809e80bSGuan Xuetao tristate "PKUnity v3 RTC support" 16412809e80bSGuan Xuetao depends on ARCH_PUV3 16422809e80bSGuan Xuetao help 16432809e80bSGuan Xuetao This enables support for the RTC in the PKUnity-v3 SoCs. 16442809e80bSGuan Xuetao 16452809e80bSGuan Xuetao This drive can also be built as a module. If so, the module 16462809e80bSGuan Xuetao will be called rtc-puv3. 16472809e80bSGuan Xuetao 1648b4f0b880Szhao zhangconfig RTC_DRV_LOONGSON1 1649b4f0b880Szhao zhang tristate "loongson1 RTC support" 165030ad29bbSHuacai Chen depends on MACH_LOONGSON32 1651b4f0b880Szhao zhang help 1652b4f0b880Szhao zhang This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year 1653b4f0b880Szhao zhang counter) to be used as a RTC. 1654b4f0b880Szhao zhang 1655b4f0b880Szhao zhang This driver can also be built as a module. If so, the module 1656b4f0b880Szhao zhang will be called rtc-ls1x. 1657b4f0b880Szhao zhang 165879811595SFabio Estevamconfig RTC_DRV_MXC 1659b224b9acSFabio Estevam tristate "Freescale MXC Real Time Clock" 1660b224b9acSFabio Estevam depends on ARCH_MXC 1661b224b9acSFabio Estevam help 1662b224b9acSFabio Estevam If you say yes here you get support for the Freescale MXC 1663b224b9acSFabio Estevam RTC module. 1664b224b9acSFabio Estevam 1665b224b9acSFabio Estevam This driver can also be built as a module, if so, the module 1666b224b9acSFabio Estevam will be called "rtc-mxc". 1667b224b9acSFabio Estevam 1668179a502fSShawn Guoconfig RTC_DRV_SNVS 1669179a502fSShawn Guo tristate "Freescale SNVS RTC support" 16708a0fa184SShawn Guo select REGMAP_MMIO 1671179a502fSShawn Guo depends on HAS_IOMEM 1672179a502fSShawn Guo depends on OF 1673179a502fSShawn Guo help 1674179a502fSShawn Guo If you say yes here you get support for the Freescale SNVS 1675179a502fSShawn Guo Low Power (LP) RTC module. 1676179a502fSShawn Guo 1677179a502fSShawn Guo This driver can also be built as a module, if so, the module 1678179a502fSShawn Guo will be called "rtc-snvs". 1679179a502fSShawn Guo 1680e88b815eSXianglong Duconfig RTC_DRV_SIRFSOC 1681e88b815eSXianglong Du tristate "SiRFSOC RTC" 1682e88b815eSXianglong Du depends on ARCH_SIRF 1683e88b815eSXianglong Du help 1684e88b815eSXianglong Du Say "yes" here to support the real time clock on SiRF SOC chips. 1685e88b815eSXianglong Du This driver can also be built as a module called rtc-sirfsoc. 1686e88b815eSXianglong Du 1687b5b2bdfcSLee Jonesconfig RTC_DRV_ST_LPC 1688b5b2bdfcSLee Jones tristate "STMicroelectronics LPC RTC" 1689b5b2bdfcSLee Jones depends on ARCH_STI 1690b5b2bdfcSLee Jones depends on OF 1691b5b2bdfcSLee Jones help 1692b5b2bdfcSLee Jones Say Y here to include STMicroelectronics Low Power Controller 1693b5b2bdfcSLee Jones (LPC) based RTC support. 1694b5b2bdfcSLee Jones 1695b5b2bdfcSLee Jones To compile this driver as a module, choose M here: the 1696b5b2bdfcSLee Jones module will be called rtc-st-lpc. 1697b5b2bdfcSLee Jones 1698453b4c6dSJonas Jensenconfig RTC_DRV_MOXART 1699453b4c6dSJonas Jensen tristate "MOXA ART RTC" 1700441fb768SJean Delvare depends on ARCH_MOXART || COMPILE_TEST 1701453b4c6dSJonas Jensen help 1702453b4c6dSJonas Jensen If you say yes here you get support for the MOXA ART 1703453b4c6dSJonas Jensen RTC module. 1704453b4c6dSJonas Jensen 1705453b4c6dSJonas Jensen This driver can also be built as a module. If so, the module 1706453b4c6dSJonas Jensen will be called rtc-moxart 1707453b4c6dSJonas Jensen 1708fc297911STianping Fangconfig RTC_DRV_MT6397 1709fc297911STianping Fang tristate "Mediatek Real Time Clock driver" 171004d3ba70SArnd Bergmann depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN) 1711fc297911STianping Fang help 1712fc297911STianping Fang This selects the Mediatek(R) RTC driver. RTC is part of Mediatek 1713fc297911STianping Fang MT6397 PMIC. You should enable MT6397 PMIC MFD before select 1714fc297911STianping Fang Mediatek(R) RTC driver. 1715fc297911STianping Fang 1716fc297911STianping Fang If you want to use Mediatek(R) RTC interface, select Y or M here. 1717fc297911STianping Fang 1718f12d8695SLoc Hoconfig RTC_DRV_XGENE 1719f12d8695SLoc Ho tristate "APM X-Gene RTC" 1720706b632dSChen Gang depends on HAS_IOMEM 1721fdf8afa1SJean Delvare depends on ARCH_XGENE || COMPILE_TEST 1722f12d8695SLoc Ho help 1723f12d8695SLoc Ho If you say yes here you get support for the APM X-Gene SoC real time 1724f12d8695SLoc Ho clock. 1725f12d8695SLoc Ho 1726f12d8695SLoc Ho This driver can also be built as a module, if so, the module 1727f12d8695SLoc Ho will be called "rtc-xgene". 1728f12d8695SLoc Ho 172951aa905cSJoshua Hendersonconfig RTC_DRV_PIC32 173051aa905cSJoshua Henderson tristate "Microchip PIC32 RTC" 173151aa905cSJoshua Henderson depends on MACH_PIC32 173251aa905cSJoshua Henderson default y 173351aa905cSJoshua Henderson help 173451aa905cSJoshua Henderson If you say yes here you get support for the PIC32 RTC module. 173551aa905cSJoshua Henderson 173651aa905cSJoshua Henderson This driver can also be built as a module. If so, the module 173751aa905cSJoshua Henderson will be called rtc-pic32 173851aa905cSJoshua Henderson 17390b6a8f5cSAkinobu Mitaconfig RTC_DRV_R7301 17400b6a8f5cSAkinobu Mita tristate "EPSON TOYOCOM RTC-7301SF/DG" 17410b6a8f5cSAkinobu Mita select REGMAP_MMIO 17420b6a8f5cSAkinobu Mita depends on OF && HAS_IOMEM 17430b6a8f5cSAkinobu Mita help 17440b6a8f5cSAkinobu Mita If you say yes here you get support for the EPSON TOYOCOM 17450b6a8f5cSAkinobu Mita RTC-7301SF/DG chips. 17460b6a8f5cSAkinobu Mita 17470b6a8f5cSAkinobu Mita This driver can also be built as a module. If so, the module 17480b6a8f5cSAkinobu Mita will be called rtc-r7301. 17490b6a8f5cSAkinobu Mita 17504e64350fSAmelie Delaunayconfig RTC_DRV_STM32 17514e64350fSAmelie Delaunay tristate "STM32 RTC" 17524e64350fSAmelie Delaunay select REGMAP_MMIO 17534e64350fSAmelie Delaunay depends on ARCH_STM32 || COMPILE_TEST 17544e64350fSAmelie Delaunay help 17554e64350fSAmelie Delaunay If you say yes here you get support for the STM32 On-Chip 17564e64350fSAmelie Delaunay Real Time Clock. 17574e64350fSAmelie Delaunay 17584e64350fSAmelie Delaunay This driver can also be built as a module, if so, the module 17594e64350fSAmelie Delaunay will be called "rtc-stm32". 17604e64350fSAmelie Delaunay 1761dd3bf50bSSebastian Reichelconfig RTC_DRV_CPCAP 1762dd3bf50bSSebastian Reichel depends on MFD_CPCAP 1763dd3bf50bSSebastian Reichel tristate "Motorola CPCAP RTC" 1764dd3bf50bSSebastian Reichel help 1765dd3bf50bSSebastian Reichel Say y here for CPCAP rtc found on some Motorola phones 1766dd3bf50bSSebastian Reichel and tablets such as Droid 4. 1767dd3bf50bSSebastian Reichel 176862e00cb9SAlexander Hollercomment "HID Sensor RTC drivers" 176962e00cb9SAlexander Holler 177062e00cb9SAlexander Hollerconfig RTC_DRV_HID_SENSOR_TIME 177162e00cb9SAlexander Holler tristate "HID Sensor Time" 177262e00cb9SAlexander Holler depends on USB_HID 177362e00cb9SAlexander Holler select IIO 177462e00cb9SAlexander Holler select HID_SENSOR_HUB 177562e00cb9SAlexander Holler select HID_SENSOR_IIO_COMMON 177662e00cb9SAlexander Holler help 177762e00cb9SAlexander Holler Say yes here to build support for the HID Sensors of type Time. 177862e00cb9SAlexander Holler This drivers makes such sensors available as RTCs. 177962e00cb9SAlexander Holler 178062e00cb9SAlexander Holler If this driver is compiled as a module, it will be named 178162e00cb9SAlexander Holler rtc-hid-sensor-time. 178262e00cb9SAlexander Holler 1783*f22d9cdcSMiodrag Dinicconfig RTC_DRV_GOLDFISH 1784*f22d9cdcSMiodrag Dinic tristate "Goldfish Real Time Clock" 1785*f22d9cdcSMiodrag Dinic depends on MIPS && (GOLDFISH || COMPILE_TEST) 1786*f22d9cdcSMiodrag Dinic help 1787*f22d9cdcSMiodrag Dinic Say yes to enable RTC driver for the Goldfish based virtual platform. 1788*f22d9cdcSMiodrag Dinic 1789*f22d9cdcSMiodrag Dinic Goldfish is a code name for the virtual platform developed by Google 1790*f22d9cdcSMiodrag Dinic for Android emulation. 179162e00cb9SAlexander Holler 1792bb35fb20SJan Engelhardtendif # RTC_CLASS 1793