Kconfig 52 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815391540154115421543154415451546154715481549155015511552155315541555155615571558155915601561156215631564156515661567156815691570157115721573157415751576157715781579158015811582158315841585158615871588158915901591159215931594159515961597159815991600160116021603160416051606160716081609161016111612161316141615161616171618161916201621162216231624162516261627162816291630163116321633163416351636163716381639164016411642164316441645164616471648164916501651165216531654165516561657165816591660166116621663166416651666166716681669167016711672167316741675167616771678167916801681168216831684168516861687168816891690169116921693169416951696169716981699170017011702170317041705170617071708170917101711171217131714171517161717171817191720172117221723172417251726172717281729173017311732173317341735173617371738173917401741174217431744174517461747174817491750175117521753175417551756175717581759176017611762176317641765176617671768176917701771177217731774177517761777177817791780178117821783178417851786178717881789179017911792179317941795179617971798179918001801180218031804180518061807180818091810181118121813
  1. #
  2. # RTC class/drivers configuration
  3. #
  4. config RTC_LIB
  5. bool
  6. config RTC_MC146818_LIB
  7. bool
  8. select RTC_LIB
  9. menuconfig RTC_CLASS
  10. bool "Real Time Clock"
  11. default n
  12. depends on !S390 && !UML
  13. select RTC_LIB
  14. help
  15. Generic RTC class support. If you say yes here, you will
  16. be allowed to plug one or more RTCs to your system. You will
  17. probably want to enable one or more of the interfaces below.
  18. if RTC_CLASS
  19. config RTC_HCTOSYS
  20. bool "Set system time from RTC on startup and resume"
  21. default y
  22. help
  23. If you say yes here, the system time (wall clock) will be set using
  24. the value read from a specified RTC device. This is useful to avoid
  25. unnecessary fsck runs at boot time, and to network better.
  26. config RTC_HCTOSYS_DEVICE
  27. string "RTC used to set the system time"
  28. depends on RTC_HCTOSYS
  29. default "rtc0"
  30. help
  31. The RTC device that will be used to (re)initialize the system
  32. clock, usually rtc0. Initialization is done when the system
  33. starts up, and when it resumes from a low power state. This
  34. device should record time in UTC, since the kernel won't do
  35. timezone correction.
  36. The driver for this RTC device must be loaded before late_initcall
  37. functions run, so it must usually be statically linked.
  38. This clock should be battery-backed, so that it reads the correct
  39. time when the system boots from a power-off state. Otherwise, your
  40. system will need an external clock source (like an NTP server).
  41. If the clock you specify here is not battery backed, it may still
  42. be useful to reinitialize system time when resuming from system
  43. sleep states. Do not specify an RTC here unless it stays powered
  44. during all this system's supported sleep states.
  45. config RTC_SYSTOHC
  46. bool "Set the RTC time based on NTP synchronization"
  47. default y
  48. help
  49. If you say yes here, the system time (wall clock) will be stored
  50. in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
  51. minutes if userspace reports synchronized NTP status.
  52. config RTC_SYSTOHC_DEVICE
  53. string "RTC used to synchronize NTP adjustment"
  54. depends on RTC_SYSTOHC
  55. default RTC_HCTOSYS_DEVICE if RTC_HCTOSYS
  56. default "rtc0"
  57. help
  58. The RTC device used for NTP synchronization. The main difference
  59. between RTC_HCTOSYS_DEVICE and RTC_SYSTOHC_DEVICE is that this
  60. one can sleep when setting time, because it runs in the workqueue
  61. context.
  62. config RTC_DEBUG
  63. bool "RTC debug support"
  64. help
  65. Say yes here to enable debugging support in the RTC framework
  66. and individual RTC drivers.
  67. config RTC_NVMEM
  68. bool "RTC non volatile storage support"
  69. select NVMEM
  70. default RTC_CLASS
  71. help
  72. Say yes here to add support for the non volatile (often battery
  73. backed) storage present on RTCs.
  74. comment "RTC interfaces"
  75. config RTC_INTF_SYSFS
  76. bool "/sys/class/rtc/rtcN (sysfs)"
  77. depends on SYSFS
  78. default RTC_CLASS
  79. help
  80. Say yes here if you want to use your RTCs using sysfs interfaces,
  81. /sys/class/rtc/rtc0 through /sys/.../rtcN.
  82. If unsure, say Y.
  83. config RTC_INTF_PROC
  84. bool "/proc/driver/rtc (procfs for rtcN)"
  85. depends on PROC_FS
  86. default RTC_CLASS
  87. help
  88. Say yes here if you want to use your system clock RTC through
  89. the proc interface, /proc/driver/rtc.
  90. Other RTCs will not be available through that API.
  91. If there is no RTC for the system clock, then the first RTC(rtc0)
  92. is used by default.
  93. If unsure, say Y.
  94. config RTC_INTF_DEV
  95. bool "/dev/rtcN (character devices)"
  96. default RTC_CLASS
  97. help
  98. Say yes here if you want to use your RTCs using the /dev
  99. interfaces, which "udev" sets up as /dev/rtc0 through
  100. /dev/rtcN.
  101. You may want to set up a symbolic link so one of these
  102. can be accessed as /dev/rtc, which is a name
  103. expected by "hwclock" and some other programs. Recent
  104. versions of "udev" are known to set up the symlink for you.
  105. If unsure, say Y.
  106. config RTC_INTF_DEV_UIE_EMUL
  107. bool "RTC UIE emulation on dev interface"
  108. depends on RTC_INTF_DEV
  109. help
  110. Provides an emulation for RTC_UIE if the underlying rtc chip
  111. driver does not expose RTC_UIE ioctls. Those requests generate
  112. once-per-second update interrupts, used for synchronization.
  113. The emulation code will read the time from the hardware
  114. clock several times per second, please enable this option
  115. only if you know that you really need it.
  116. config RTC_DRV_TEST
  117. tristate "Test driver/device"
  118. help
  119. If you say yes here you get support for the
  120. RTC test driver. It's a software RTC which can be
  121. used to test the RTC subsystem APIs. It gets
  122. the time from the system clock.
  123. You want this driver only if you are doing development
  124. on the RTC subsystem. Please read the source code
  125. for further details.
  126. This driver can also be built as a module. If so, the module
  127. will be called rtc-test.
  128. comment "I2C RTC drivers"
  129. if I2C
  130. config RTC_DRV_88PM860X
  131. tristate "Marvell 88PM860x"
  132. depends on MFD_88PM860X
  133. help
  134. If you say yes here you get support for RTC function in Marvell
  135. 88PM860x chips.
  136. This driver can also be built as a module. If so, the module
  137. will be called rtc-88pm860x.
  138. config RTC_DRV_88PM80X
  139. tristate "Marvell 88PM80x"
  140. depends on MFD_88PM800
  141. help
  142. If you say yes here you get support for RTC function in Marvell
  143. 88PM80x chips.
  144. This driver can also be built as a module. If so, the module
  145. will be called rtc-88pm80x.
  146. config RTC_DRV_ABB5ZES3
  147. select REGMAP_I2C
  148. tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
  149. help
  150. If you say yes here you get support for the Abracon
  151. AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.
  152. This driver can also be built as a module. If so, the module
  153. will be called rtc-ab-b5ze-s3.
  154. config RTC_DRV_ABX80X
  155. tristate "Abracon ABx80x"
  156. help
  157. If you say yes here you get support for Abracon AB080X and AB180X
  158. families of ultra-low-power battery- and capacitor-backed real-time
  159. clock chips.
  160. This driver can also be built as a module. If so, the module
  161. will be called rtc-abx80x.
  162. config RTC_DRV_AC100
  163. tristate "X-Powers AC100"
  164. depends on MFD_AC100
  165. help
  166. If you say yes here you get support for the real-time clock found
  167. in X-Powers AC100 family peripheral ICs.
  168. This driver can also be built as a module. If so, the module
  169. will be called rtc-ac100.
  170. config RTC_DRV_BRCMSTB
  171. tristate "Broadcom STB wake-timer"
  172. depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
  173. default ARCH_BRCMSTB || BMIPS_GENERIC
  174. help
  175. If you say yes here you get support for the wake-timer found on
  176. Broadcom STB SoCs (BCM7xxx).
  177. This driver can also be built as a module. If so, the module will
  178. be called rtc-brcmstb-waketimer.
  179. config RTC_DRV_AS3722
  180. tristate "ams AS3722 RTC driver"
  181. depends on MFD_AS3722
  182. help
  183. If you say yes here you get support for the RTC of ams AS3722 PMIC
  184. chips.
  185. This driver can also be built as a module. If so, the module
  186. will be called rtc-as3722.
  187. config RTC_DRV_DS1307
  188. tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057"
  189. help
  190. If you say yes here you get support for various compatible RTC
  191. chips (often with battery backup) connected with I2C. This driver
  192. should handle DS1307, DS1337, DS1338, DS1339, DS1340, DS1341,
  193. ST M41T00, EPSON RX-8025, Intersil ISL12057 and probably other chips.
  194. In some cases the RTC must already have been initialized (by
  195. manufacturing or a bootloader).
  196. The first seven registers on these chips hold an RTC, and other
  197. registers may add features such as NVRAM, a trickle charger for
  198. the RTC/NVRAM backup power, and alarms. NVRAM is visible in
  199. sysfs, but other chip features may not be available.
  200. This driver can also be built as a module. If so, the module
  201. will be called rtc-ds1307.
  202. config RTC_DRV_DS1307_HWMON
  203. bool "HWMON support for rtc-ds1307"
  204. depends on RTC_DRV_DS1307 && HWMON
  205. depends on !(RTC_DRV_DS1307=y && HWMON=m)
  206. default y
  207. help
  208. Say Y here if you want to expose temperature sensor data on
  209. rtc-ds1307 (only DS3231)
  210. config RTC_DRV_DS1307_CENTURY
  211. bool "Century bit support for rtc-ds1307"
  212. depends on RTC_DRV_DS1307
  213. default n
  214. help
  215. The DS1307 driver suffered from a bug where it was enabling the
  216. century bit inconditionnally but never used it when reading the time.
  217. It made the driver unable to support dates beyond 2099.
  218. Setting this option will add proper support for the century bit but if
  219. the time was previously set using a kernel predating this option,
  220. reading the date will return a date in the next century.
  221. To solve that, you could boot a kernel without this option set, set
  222. the RTC date and then boot a kernel with this option set.
  223. config RTC_DRV_DS1374
  224. tristate "Dallas/Maxim DS1374"
  225. help
  226. If you say yes here you get support for Dallas Semiconductor
  227. DS1374 real-time clock chips. If an interrupt is associated
  228. with the device, the alarm functionality is supported.
  229. This driver can also be built as a module. If so, the module
  230. will be called rtc-ds1374.
  231. config RTC_DRV_DS1374_WDT
  232. bool "Dallas/Maxim DS1374 watchdog timer"
  233. depends on RTC_DRV_DS1374
  234. help
  235. If you say Y here you will get support for the
  236. watchdog timer in the Dallas Semiconductor DS1374
  237. real-time clock chips.
  238. config RTC_DRV_DS1672
  239. tristate "Dallas/Maxim DS1672"
  240. help
  241. If you say yes here you get support for the
  242. Dallas/Maxim DS1672 timekeeping chip.
  243. This driver can also be built as a module. If so, the module
  244. will be called rtc-ds1672.
  245. config RTC_DRV_HYM8563
  246. tristate "Haoyu Microelectronics HYM8563"
  247. depends on OF
  248. help
  249. Say Y to enable support for the HYM8563 I2C RTC chip. Apart
  250. from the usual rtc functions it provides a clock output of
  251. up to 32kHz.
  252. This driver can also be built as a module. If so, the module
  253. will be called rtc-hym8563.
  254. config RTC_DRV_LP8788
  255. tristate "TI LP8788 RTC driver"
  256. depends on MFD_LP8788
  257. help
  258. Say Y to enable support for the LP8788 RTC/ALARM driver.
  259. config RTC_DRV_MAX6900
  260. tristate "Maxim MAX6900"
  261. help
  262. If you say yes here you will get support for the
  263. Maxim MAX6900 I2C RTC chip.
  264. This driver can also be built as a module. If so, the module
  265. will be called rtc-max6900.
  266. config RTC_DRV_MAX8907
  267. tristate "Maxim MAX8907"
  268. depends on MFD_MAX8907 || COMPILE_TEST
  269. select REGMAP_IRQ
  270. help
  271. If you say yes here you will get support for the
  272. RTC of Maxim MAX8907 PMIC.
  273. This driver can also be built as a module. If so, the module
  274. will be called rtc-max8907.
  275. config RTC_DRV_MAX8925
  276. tristate "Maxim MAX8925"
  277. depends on MFD_MAX8925
  278. help
  279. If you say yes here you will get support for the
  280. RTC of Maxim MAX8925 PMIC.
  281. This driver can also be built as a module. If so, the module
  282. will be called rtc-max8925.
  283. config RTC_DRV_MAX8998
  284. tristate "Maxim MAX8998"
  285. depends on MFD_MAX8998
  286. help
  287. If you say yes here you will get support for the
  288. RTC of Maxim MAX8998 PMIC.
  289. This driver can also be built as a module. If so, the module
  290. will be called rtc-max8998.
  291. config RTC_DRV_MAX8997
  292. tristate "Maxim MAX8997"
  293. depends on MFD_MAX8997
  294. help
  295. If you say yes here you will get support for the
  296. RTC of Maxim MAX8997 PMIC.
  297. This driver can also be built as a module. If so, the module
  298. will be called rtc-max8997.
  299. config RTC_DRV_MAX77686
  300. tristate "Maxim MAX77686"
  301. depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST
  302. help
  303. If you say yes here you will get support for the
  304. RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC.
  305. This driver can also be built as a module. If so, the module
  306. will be called rtc-max77686.
  307. config RTC_DRV_RK808
  308. tristate "Rockchip RK805/RK808/RK818 RTC"
  309. depends on MFD_RK808
  310. help
  311. If you say yes here you will get support for the
  312. RTC of RK805, RK808 and RK818 PMIC.
  313. This driver can also be built as a module. If so, the module
  314. will be called rk808-rtc.
  315. config RTC_DRV_RS5C372
  316. tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
  317. help
  318. If you say yes here you get support for the
  319. Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
  320. This driver can also be built as a module. If so, the module
  321. will be called rtc-rs5c372.
  322. config RTC_DRV_ISL1208
  323. tristate "Intersil ISL1208"
  324. help
  325. If you say yes here you get support for the
  326. Intersil ISL1208 RTC chip.
  327. This driver can also be built as a module. If so, the module
  328. will be called rtc-isl1208.
  329. config RTC_DRV_ISL12022
  330. tristate "Intersil ISL12022"
  331. help
  332. If you say yes here you get support for the
  333. Intersil ISL12022 RTC chip.
  334. This driver can also be built as a module. If so, the module
  335. will be called rtc-isl12022.
  336. config RTC_DRV_X1205
  337. tristate "Xicor/Intersil X1205"
  338. help
  339. If you say yes here you get support for the
  340. Xicor/Intersil X1205 RTC chip.
  341. This driver can also be built as a module. If so, the module
  342. will be called rtc-x1205.
  343. config RTC_DRV_PCF8523
  344. tristate "NXP PCF8523"
  345. help
  346. If you say yes here you get support for the NXP PCF8523 RTC
  347. chips.
  348. This driver can also be built as a module. If so, the module
  349. will be called rtc-pcf8523.
  350. config RTC_DRV_PCF85063
  351. tristate "NXP PCF85063"
  352. help
  353. If you say yes here you get support for the PCF85063 RTC chip
  354. This driver can also be built as a module. If so, the module
  355. will be called rtc-pcf85063.
  356. config RTC_DRV_PCF8563
  357. tristate "Philips PCF8563/Epson RTC8564"
  358. help
  359. If you say yes here you get support for the
  360. Philips PCF8563 RTC chip. The Epson RTC8564
  361. should work as well.
  362. This driver can also be built as a module. If so, the module
  363. will be called rtc-pcf8563.
  364. config RTC_DRV_PCF8583
  365. tristate "Philips PCF8583"
  366. help
  367. If you say yes here you get support for the Philips PCF8583
  368. RTC chip found on Acorn RiscPCs. This driver supports the
  369. platform specific method of retrieving the current year from
  370. the RTC's SRAM. It will work on other platforms with the same
  371. chip, but the year will probably have to be tweaked.
  372. This driver can also be built as a module. If so, the module
  373. will be called rtc-pcf8583.
  374. config RTC_DRV_M41T80
  375. tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible"
  376. help
  377. If you say Y here you will get support for the ST M41T60
  378. and M41T80 RTC chips series. Currently, the following chips are
  379. supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
  380. M41ST85, M41ST87, and MicroCrystal RV4162.
  381. This driver can also be built as a module. If so, the module
  382. will be called rtc-m41t80.
  383. config RTC_DRV_M41T80_WDT
  384. bool "ST M41T65/M41T80 series RTC watchdog timer"
  385. depends on RTC_DRV_M41T80
  386. help
  387. If you say Y here you will get support for the
  388. watchdog timer in the ST M41T60 and M41T80 RTC chips series.
  389. config RTC_DRV_BQ32K
  390. tristate "TI BQ32000"
  391. help
  392. If you say Y here you will get support for the TI
  393. BQ32000 I2C RTC chip.
  394. This driver can also be built as a module. If so, the module
  395. will be called rtc-bq32k.
  396. config RTC_DRV_DM355EVM
  397. tristate "TI DaVinci DM355 EVM RTC"
  398. depends on MFD_DM355EVM_MSP
  399. help
  400. Supports the RTC firmware in the MSP430 on the DM355 EVM.
  401. config RTC_DRV_TWL92330
  402. bool "TI TWL92330/Menelaus"
  403. depends on MENELAUS
  404. help
  405. If you say yes here you get support for the RTC on the
  406. TWL92330 "Menelaus" power management chip, used with OMAP2
  407. platforms. The support is integrated with the rest of
  408. the Menelaus driver; it's not separate module.
  409. config RTC_DRV_TWL4030
  410. tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
  411. depends on TWL4030_CORE
  412. depends on OF
  413. help
  414. If you say yes here you get support for the RTC on the
  415. TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
  416. This driver can also be built as a module. If so, the module
  417. will be called rtc-twl.
  418. config RTC_DRV_PALMAS
  419. tristate "TI Palmas RTC driver"
  420. depends on MFD_PALMAS
  421. help
  422. If you say yes here you get support for the RTC of TI PALMA series PMIC
  423. chips.
  424. This driver can also be built as a module. If so, the module
  425. will be called rtc-palma.
  426. config RTC_DRV_TPS6586X
  427. tristate "TI TPS6586X RTC driver"
  428. depends on MFD_TPS6586X
  429. help
  430. TI Power Management IC TPS6586X supports RTC functionality
  431. along with alarm. This driver supports the RTC driver for
  432. the TPS6586X RTC module.
  433. config RTC_DRV_TPS65910
  434. tristate "TI TPS65910 RTC driver"
  435. depends on RTC_CLASS && MFD_TPS65910
  436. help
  437. If you say yes here you get support for the RTC on the
  438. TPS65910 chips.
  439. This driver can also be built as a module. If so, the module
  440. will be called rtc-tps65910.
  441. config RTC_DRV_TPS80031
  442. tristate "TI TPS80031/TPS80032 RTC driver"
  443. depends on MFD_TPS80031
  444. help
  445. TI Power Management IC TPS80031 supports RTC functionality
  446. along with alarm. This driver supports the RTC driver for
  447. the TPS80031 RTC module.
  448. config RTC_DRV_RC5T583
  449. tristate "RICOH 5T583 RTC driver"
  450. depends on MFD_RC5T583
  451. help
  452. If you say yes here you get support for the RTC on the
  453. RICOH 5T583 chips.
  454. This driver can also be built as a module. If so, the module
  455. will be called rtc-rc5t583.
  456. config RTC_DRV_S35390A
  457. tristate "Seiko Instruments S-35390A"
  458. select BITREVERSE
  459. help
  460. If you say yes here you will get support for the Seiko
  461. Instruments S-35390A.
  462. This driver can also be built as a module. If so the module
  463. will be called rtc-s35390a.
  464. config RTC_DRV_FM3130
  465. tristate "Ramtron FM3130"
  466. help
  467. If you say Y here you will get support for the
  468. Ramtron FM3130 RTC chips.
  469. Ramtron FM3130 is a chip with two separate devices inside,
  470. RTC clock and FRAM. This driver provides only RTC functionality.
  471. This driver can also be built as a module. If so the module
  472. will be called rtc-fm3130.
  473. config RTC_DRV_RX8010
  474. tristate "Epson RX8010SJ"
  475. depends on I2C
  476. help
  477. If you say yes here you get support for the Epson RX8010SJ RTC
  478. chip.
  479. This driver can also be built as a module. If so, the module
  480. will be called rtc-rx8010.
  481. config RTC_DRV_RX8581
  482. tristate "Epson RX-8581"
  483. help
  484. If you say yes here you will get support for the Epson RX-8581.
  485. This driver can also be built as a module. If so the module
  486. will be called rtc-rx8581.
  487. config RTC_DRV_RX8025
  488. tristate "Epson RX-8025SA/NB"
  489. help
  490. If you say yes here you get support for the Epson
  491. RX-8025SA/NB RTC chips.
  492. This driver can also be built as a module. If so, the module
  493. will be called rtc-rx8025.
  494. config RTC_DRV_EM3027
  495. tristate "EM Microelectronic EM3027"
  496. help
  497. If you say yes here you get support for the EM
  498. Microelectronic EM3027 RTC chips.
  499. This driver can also be built as a module. If so, the module
  500. will be called rtc-em3027.
  501. config RTC_DRV_RV8803
  502. tristate "Micro Crystal RV8803, Epson RX8900"
  503. help
  504. If you say yes here you get support for the Micro Crystal RV8803 and
  505. Epson RX8900 RTC chips.
  506. This driver can also be built as a module. If so, the module
  507. will be called rtc-rv8803.
  508. config RTC_DRV_S5M
  509. tristate "Samsung S2M/S5M series"
  510. depends on MFD_SEC_CORE || COMPILE_TEST
  511. select REGMAP_IRQ
  512. select REGMAP_I2C
  513. help
  514. If you say yes here you will get support for the
  515. RTC of Samsung S2MPS14 and S5M PMIC series.
  516. This driver can also be built as a module. If so, the module
  517. will be called rtc-s5m.
  518. endif # I2C
  519. comment "SPI RTC drivers"
  520. if SPI_MASTER
  521. config RTC_DRV_M41T93
  522. tristate "ST M41T93"
  523. help
  524. If you say yes here you will get support for the
  525. ST M41T93 SPI RTC chip.
  526. This driver can also be built as a module. If so, the module
  527. will be called rtc-m41t93.
  528. config RTC_DRV_M41T94
  529. tristate "ST M41T94"
  530. help
  531. If you say yes here you will get support for the
  532. ST M41T94 SPI RTC chip.
  533. This driver can also be built as a module. If so, the module
  534. will be called rtc-m41t94.
  535. config RTC_DRV_DS1302
  536. tristate "Dallas/Maxim DS1302"
  537. depends on SPI
  538. help
  539. If you say yes here you get support for the Dallas DS1302 RTC chips.
  540. This driver can also be built as a module. If so, the module
  541. will be called rtc-ds1302.
  542. config RTC_DRV_DS1305
  543. tristate "Dallas/Maxim DS1305/DS1306"
  544. help
  545. Select this driver to get support for the Dallas/Maxim DS1305
  546. and DS1306 real time clock chips. These support a trickle
  547. charger, alarms, and NVRAM in addition to the clock.
  548. This driver can also be built as a module. If so, the module
  549. will be called rtc-ds1305.
  550. config RTC_DRV_DS1343
  551. select REGMAP_SPI
  552. tristate "Dallas/Maxim DS1343/DS1344"
  553. help
  554. If you say yes here you get support for the
  555. Dallas/Maxim DS1343 and DS1344 real time clock chips.
  556. Support for trickle charger, alarm is provided.
  557. This driver can also be built as a module. If so, the module
  558. will be called rtc-ds1343.
  559. config RTC_DRV_DS1347
  560. select REGMAP_SPI
  561. tristate "Dallas/Maxim DS1347"
  562. help
  563. If you say yes here you get support for the
  564. Dallas/Maxim DS1347 chips.
  565. This driver only supports the RTC feature, and not other chip
  566. features such as alarms.
  567. This driver can also be built as a module. If so, the module
  568. will be called rtc-ds1347.
  569. config RTC_DRV_DS1390
  570. tristate "Dallas/Maxim DS1390/93/94"
  571. help
  572. If you say yes here you get support for the
  573. Dallas/Maxim DS1390/93/94 chips.
  574. This driver supports the RTC feature and trickle charging but not
  575. other chip features such as alarms.
  576. This driver can also be built as a module. If so, the module
  577. will be called rtc-ds1390.
  578. config RTC_DRV_MAX6916
  579. tristate "Maxim MAX6916"
  580. help
  581. If you say yes here you will get support for the
  582. Maxim MAX6916 SPI RTC chip.
  583. This driver only supports the RTC feature, and not other chip
  584. features such as alarms.
  585. This driver can also be built as a module. If so, the module
  586. will be called rtc-max6916.
  587. config RTC_DRV_R9701
  588. tristate "Epson RTC-9701JE"
  589. help
  590. If you say yes here you will get support for the
  591. Epson RTC-9701JE SPI RTC chip.
  592. This driver can also be built as a module. If so, the module
  593. will be called rtc-r9701.
  594. config RTC_DRV_RX4581
  595. tristate "Epson RX-4581"
  596. help
  597. If you say yes here you will get support for the Epson RX-4581.
  598. This driver can also be built as a module. If so the module
  599. will be called rtc-rx4581.
  600. config RTC_DRV_RX6110
  601. tristate "Epson RX-6110"
  602. select REGMAP_SPI
  603. help
  604. If you say yes here you will get support for the Epson RX-6610.
  605. This driver can also be built as a module. If so the module
  606. will be called rtc-rx6110.
  607. config RTC_DRV_RS5C348
  608. tristate "Ricoh RS5C348A/B"
  609. help
  610. If you say yes here you get support for the
  611. Ricoh RS5C348A and RS5C348B RTC chips.
  612. This driver can also be built as a module. If so, the module
  613. will be called rtc-rs5c348.
  614. config RTC_DRV_MAX6902
  615. tristate "Maxim MAX6902"
  616. help
  617. If you say yes here you will get support for the
  618. Maxim MAX6902 SPI RTC chip.
  619. This driver can also be built as a module. If so, the module
  620. will be called rtc-max6902.
  621. config RTC_DRV_PCF2123
  622. tristate "NXP PCF2123"
  623. help
  624. If you say yes here you get support for the NXP PCF2123
  625. RTC chip.
  626. This driver can also be built as a module. If so, the module
  627. will be called rtc-pcf2123.
  628. config RTC_DRV_MCP795
  629. tristate "Microchip MCP795"
  630. help
  631. If you say yes here you will get support for the Microchip MCP795.
  632. This driver can also be built as a module. If so the module
  633. will be called rtc-mcp795.
  634. endif # SPI_MASTER
  635. #
  636. # Helper to resolve issues with configs that have SPI enabled but I2C
  637. # modular. See SND_SOC_I2C_AND_SPI for more information
  638. #
  639. config RTC_I2C_AND_SPI
  640. tristate
  641. default m if I2C=m
  642. default y if I2C=y
  643. default y if SPI_MASTER=y
  644. select REGMAP_I2C if I2C
  645. select REGMAP_SPI if SPI_MASTER
  646. comment "SPI and I2C RTC drivers"
  647. config RTC_DRV_DS3232
  648. tristate "Dallas/Maxim DS3232/DS3234"
  649. depends on RTC_I2C_AND_SPI
  650. help
  651. If you say yes here you get support for Dallas Semiconductor
  652. DS3232 and DS3234 real-time clock chips. If an interrupt is associated
  653. with the device, the alarm functionality is supported.
  654. This driver can also be built as a module. If so, the module
  655. will be called rtc-ds3232.
  656. config RTC_DRV_DS3232_HWMON
  657. bool "HWMON support for Dallas/Maxim DS3232/DS3234"
  658. depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m)
  659. default y
  660. help
  661. Say Y here if you want to expose temperature sensor data on
  662. rtc-ds3232
  663. config RTC_DRV_PCF2127
  664. tristate "NXP PCF2127"
  665. depends on RTC_I2C_AND_SPI
  666. help
  667. If you say yes here you get support for the NXP PCF2127/29 RTC
  668. chips.
  669. This driver can also be built as a module. If so, the module
  670. will be called rtc-pcf2127.
  671. config RTC_DRV_RV3029C2
  672. tristate "Micro Crystal RV3029/3049"
  673. depends on RTC_I2C_AND_SPI
  674. help
  675. If you say yes here you get support for the Micro Crystal
  676. RV3029 and RV3049 RTC chips.
  677. This driver can also be built as a module. If so, the module
  678. will be called rtc-rv3029c2.
  679. config RTC_DRV_RV3029_HWMON
  680. bool "HWMON support for RV3029/3049"
  681. depends on RTC_DRV_RV3029C2 && HWMON
  682. depends on !(RTC_DRV_RV3029C2=y && HWMON=m)
  683. default y
  684. help
  685. Say Y here if you want to expose temperature sensor data on
  686. rtc-rv3029.
  687. comment "Platform RTC drivers"
  688. # this 'CMOS' RTC driver is arch dependent because it requires
  689. # <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
  690. # global rtc_lock ... it's not yet just another platform_device.
  691. config RTC_DRV_CMOS
  692. tristate "PC-style 'CMOS'"
  693. depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 || MN10300
  694. default y if X86
  695. select RTC_MC146818_LIB
  696. help
  697. Say "yes" here to get direct support for the real time clock
  698. found in every PC or ACPI-based system, and some other boards.
  699. Specifically the original MC146818, compatibles like those in
  700. PC south bridges, the DS12887 or M48T86, some multifunction
  701. or LPC bus chips, and so on.
  702. Your system will need to define the platform device used by
  703. this driver, otherwise it won't be accessible. This means
  704. you can safely enable this driver if you don't know whether
  705. or not your board has this kind of hardware.
  706. This driver can also be built as a module. If so, the module
  707. will be called rtc-cmos.
  708. config RTC_DRV_ALPHA
  709. bool "Alpha PC-style CMOS"
  710. depends on ALPHA
  711. select RTC_MC146818_LIB
  712. default y
  713. help
  714. Direct support for the real-time clock found on every Alpha
  715. system, specifically MC146818 compatibles. If in doubt, say Y.
  716. config RTC_DRV_VRTC
  717. tristate "Virtual RTC for Intel MID platforms"
  718. depends on X86_INTEL_MID
  719. default y if X86_INTEL_MID
  720. help
  721. Say "yes" here to get direct support for the real time clock
  722. found on Moorestown platforms. The VRTC is a emulated RTC that
  723. derives its clock source from a real RTC in the PMIC. The MC146818
  724. style programming interface is mostly conserved, but any
  725. updates are done via IPC calls to the system controller FW.
  726. config RTC_DRV_DS1216
  727. tristate "Dallas DS1216"
  728. depends on SNI_RM
  729. help
  730. If you say yes here you get support for the Dallas DS1216 RTC chips.
  731. config RTC_DRV_DS1286
  732. tristate "Dallas DS1286"
  733. depends on HAS_IOMEM
  734. help
  735. If you say yes here you get support for the Dallas DS1286 RTC chips.
  736. config RTC_DRV_DS1511
  737. tristate "Dallas DS1511"
  738. depends on HAS_IOMEM
  739. help
  740. If you say yes here you get support for the
  741. Dallas DS1511 timekeeping/watchdog chip.
  742. This driver can also be built as a module. If so, the module
  743. will be called rtc-ds1511.
  744. config RTC_DRV_DS1553
  745. tristate "Maxim/Dallas DS1553"
  746. depends on HAS_IOMEM
  747. help
  748. If you say yes here you get support for the
  749. Maxim/Dallas DS1553 timekeeping chip.
  750. This driver can also be built as a module. If so, the module
  751. will be called rtc-ds1553.
  752. config RTC_DRV_DS1685_FAMILY
  753. tristate "Dallas/Maxim DS1685 Family"
  754. help
  755. If you say yes here you get support for the Dallas/Maxim DS1685
  756. family of real time chips. This family includes the DS1685/DS1687,
  757. DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and
  758. DS17885/DS17887 chips.
  759. This driver can also be built as a module. If so, the module
  760. will be called rtc-ds1685.
  761. choice
  762. prompt "Subtype"
  763. depends on RTC_DRV_DS1685_FAMILY
  764. default RTC_DRV_DS1685
  765. config RTC_DRV_DS1685
  766. bool "DS1685/DS1687"
  767. help
  768. This enables support for the Dallas/Maxim DS1685/DS1687 real time
  769. clock chip.
  770. This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30)
  771. systems, as well as EPPC-405-UC modules by electronic system design
  772. GmbH.
  773. config RTC_DRV_DS1689
  774. bool "DS1689/DS1693"
  775. help
  776. This enables support for the Dallas/Maxim DS1689/DS1693 real time
  777. clock chip.
  778. This is an older RTC chip, supplanted by the DS1685/DS1687 above,
  779. which supports a few minor features such as Vcc, Vbat, and Power
  780. Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
  781. It also works for the even older DS1688/DS1691 RTC chips, which are
  782. virtually the same and carry the same model number. Both chips
  783. have 114 bytes of user NVRAM.
  784. config RTC_DRV_DS17285
  785. bool "DS17285/DS17287"
  786. help
  787. This enables support for the Dallas/Maxim DS17285/DS17287 real time
  788. clock chip.
  789. This chip features 2kb of extended NV-SRAM. It may possibly be
  790. found in some SGI O2 systems (rare).
  791. config RTC_DRV_DS17485
  792. bool "DS17485/DS17487"
  793. help
  794. This enables support for the Dallas/Maxim DS17485/DS17487 real time
  795. clock chip.
  796. This chip features 4kb of extended NV-SRAM.
  797. config RTC_DRV_DS17885
  798. bool "DS17885/DS17887"
  799. help
  800. This enables support for the Dallas/Maxim DS17885/DS17887 real time
  801. clock chip.
  802. This chip features 8kb of extended NV-SRAM.
  803. endchoice
  804. config RTC_DS1685_PROC_REGS
  805. bool "Display register values in /proc"
  806. depends on RTC_DRV_DS1685_FAMILY && PROC_FS
  807. help
  808. Enable this to display a readout of all of the RTC registers in
  809. /proc/drivers/rtc. Keep in mind that this can potentially lead
  810. to lost interrupts, as reading Control Register C will clear
  811. all pending IRQ flags.
  812. Unless you are debugging this driver, choose N.
  813. config RTC_DS1685_SYSFS_REGS
  814. bool "SysFS access to RTC register bits"
  815. depends on RTC_DRV_DS1685_FAMILY && SYSFS
  816. help
  817. Enable this to provide access to the RTC control register bits
  818. in /sys. Some of the bits are read-write, others are read-only.
  819. Keep in mind that reading Control C's bits automatically clears
  820. all pending IRQ flags - this can cause lost interrupts.
  821. If you know that you need access to these bits, choose Y, Else N.
  822. config RTC_DRV_DS1742
  823. tristate "Maxim/Dallas DS1742/1743"
  824. depends on HAS_IOMEM
  825. help
  826. If you say yes here you get support for the
  827. Maxim/Dallas DS1742/1743 timekeeping chip.
  828. This driver can also be built as a module. If so, the module
  829. will be called rtc-ds1742.
  830. config RTC_DRV_DS2404
  831. tristate "Maxim/Dallas DS2404"
  832. help
  833. If you say yes here you get support for the
  834. Dallas DS2404 RTC chip.
  835. This driver can also be built as a module. If so, the module
  836. will be called rtc-ds2404.
  837. config RTC_DRV_DA9052
  838. tristate "Dialog DA9052/DA9053 RTC"
  839. depends on PMIC_DA9052
  840. help
  841. Say y here to support the RTC driver for Dialog Semiconductor
  842. DA9052-BC and DA9053-AA/Bx PMICs.
  843. config RTC_DRV_DA9055
  844. tristate "Dialog Semiconductor DA9055 RTC"
  845. depends on MFD_DA9055
  846. help
  847. If you say yes here you will get support for the
  848. RTC of the Dialog DA9055 PMIC.
  849. This driver can also be built as a module. If so, the module
  850. will be called rtc-da9055
  851. config RTC_DRV_DA9063
  852. tristate "Dialog Semiconductor DA9063/DA9062 RTC"
  853. depends on MFD_DA9063 || MFD_DA9062
  854. help
  855. If you say yes here you will get support for the RTC subsystem
  856. for the Dialog Semiconductor PMIC chips DA9063 and DA9062.
  857. This driver can also be built as a module. If so, the module
  858. will be called "rtc-da9063".
  859. config RTC_DRV_EFI
  860. tristate "EFI RTC"
  861. depends on EFI && !X86
  862. help
  863. If you say yes here you will get support for the EFI
  864. Real Time Clock.
  865. This driver can also be built as a module. If so, the module
  866. will be called rtc-efi.
  867. config RTC_DRV_STK17TA8
  868. tristate "Simtek STK17TA8"
  869. depends on HAS_IOMEM
  870. help
  871. If you say yes here you get support for the
  872. Simtek STK17TA8 timekeeping chip.
  873. This driver can also be built as a module. If so, the module
  874. will be called rtc-stk17ta8.
  875. config RTC_DRV_M48T86
  876. tristate "ST M48T86/Dallas DS12887"
  877. help
  878. If you say Y here you will get support for the
  879. ST M48T86 and Dallas DS12887 RTC chips.
  880. This driver can also be built as a module. If so, the module
  881. will be called rtc-m48t86.
  882. config RTC_DRV_M48T35
  883. tristate "ST M48T35"
  884. depends on HAS_IOMEM
  885. help
  886. If you say Y here you will get support for the
  887. ST M48T35 RTC chip.
  888. This driver can also be built as a module, if so, the module
  889. will be called "rtc-m48t35".
  890. config RTC_DRV_M48T59
  891. tristate "ST M48T59/M48T08/M48T02"
  892. depends on HAS_IOMEM
  893. help
  894. If you say Y here you will get support for the
  895. ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
  896. These chips are usually found in Sun SPARC and UltraSPARC
  897. workstations.
  898. This driver can also be built as a module, if so, the module
  899. will be called "rtc-m48t59".
  900. config RTC_DRV_MSM6242
  901. tristate "Oki MSM6242"
  902. depends on HAS_IOMEM
  903. help
  904. If you say yes here you get support for the Oki MSM6242
  905. timekeeping chip. It is used in some Amiga models (e.g. A2000).
  906. This driver can also be built as a module. If so, the module
  907. will be called rtc-msm6242.
  908. config RTC_DRV_BQ4802
  909. tristate "TI BQ4802"
  910. depends on HAS_IOMEM
  911. help
  912. If you say Y here you will get support for the TI
  913. BQ4802 RTC chip.
  914. This driver can also be built as a module. If so, the module
  915. will be called rtc-bq4802.
  916. config RTC_DRV_RP5C01
  917. tristate "Ricoh RP5C01"
  918. depends on HAS_IOMEM
  919. help
  920. If you say yes here you get support for the Ricoh RP5C01
  921. timekeeping chip. It is used in some Amiga models (e.g. A3000
  922. and A4000).
  923. This driver can also be built as a module. If so, the module
  924. will be called rtc-rp5c01.
  925. config RTC_DRV_V3020
  926. tristate "EM Microelectronic V3020"
  927. help
  928. If you say yes here you will get support for the
  929. EM Microelectronic v3020 RTC chip.
  930. This driver can also be built as a module. If so, the module
  931. will be called rtc-v3020.
  932. config RTC_DRV_WM831X
  933. tristate "Wolfson Microelectronics WM831x RTC"
  934. depends on MFD_WM831X
  935. help
  936. If you say yes here you will get support for the RTC subsystem
  937. of the Wolfson Microelectronics WM831X series PMICs.
  938. This driver can also be built as a module. If so, the module
  939. will be called "rtc-wm831x".
  940. config RTC_DRV_WM8350
  941. tristate "Wolfson Microelectronics WM8350 RTC"
  942. depends on MFD_WM8350
  943. help
  944. If you say yes here you will get support for the RTC subsystem
  945. of the Wolfson Microelectronics WM8350.
  946. This driver can also be built as a module. If so, the module
  947. will be called "rtc-wm8350".
  948. config RTC_DRV_SPEAR
  949. tristate "SPEAR ST RTC"
  950. depends on PLAT_SPEAR || COMPILE_TEST
  951. default y
  952. help
  953. If you say Y here you will get support for the RTC found on
  954. spear
  955. config RTC_DRV_PCF50633
  956. depends on MFD_PCF50633
  957. tristate "NXP PCF50633 RTC"
  958. help
  959. If you say yes here you get support for the RTC subsystem of the
  960. NXP PCF50633 used in embedded systems.
  961. config RTC_DRV_AB3100
  962. tristate "ST-Ericsson AB3100 RTC"
  963. depends on AB3100_CORE
  964. default y if AB3100_CORE
  965. help
  966. Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
  967. support. This chip contains a battery- and capacitor-backed RTC.
  968. config RTC_DRV_AB8500
  969. tristate "ST-Ericsson AB8500 RTC"
  970. depends on AB8500_CORE
  971. select RTC_INTF_DEV
  972. select RTC_INTF_DEV_UIE_EMUL
  973. help
  974. Select this to enable the ST-Ericsson AB8500 power management IC RTC
  975. support. This chip contains a battery- and capacitor-backed RTC.
  976. config RTC_DRV_NUC900
  977. tristate "NUC910/NUC920 RTC driver"
  978. depends on ARCH_W90X900 || COMPILE_TEST
  979. help
  980. If you say yes here you get support for the RTC subsystem of the
  981. NUC910/NUC920 used in embedded systems.
  982. config RTC_DRV_OPAL
  983. tristate "IBM OPAL RTC driver"
  984. depends on PPC_POWERNV
  985. default y
  986. help
  987. If you say yes here you get support for the PowerNV platform RTC
  988. driver based on OPAL interfaces.
  989. This driver can also be built as a module. If so, the module
  990. will be called rtc-opal.
  991. config RTC_DRV_ZYNQMP
  992. tristate "Xilinx Zynq Ultrascale+ MPSoC RTC"
  993. depends on OF
  994. help
  995. If you say yes here you get support for the RTC controller found on
  996. Xilinx Zynq Ultrascale+ MPSoC.
  997. comment "on-CPU RTC drivers"
  998. config RTC_DRV_ASM9260
  999. tristate "Alphascale asm9260 RTC"
  1000. depends on MACH_ASM9260 || COMPILE_TEST
  1001. help
  1002. If you say yes here you get support for the RTC on the
  1003. Alphascale asm9260 SoC.
  1004. This driver can also be built as a module. If so, the module
  1005. will be called rtc-asm9260.
  1006. config RTC_DRV_DAVINCI
  1007. tristate "TI DaVinci RTC"
  1008. depends on ARCH_DAVINCI_DM365 || COMPILE_TEST
  1009. help
  1010. If you say yes here you get support for the RTC on the
  1011. DaVinci platforms (DM365).
  1012. This driver can also be built as a module. If so, the module
  1013. will be called rtc-davinci.
  1014. config RTC_DRV_DIGICOLOR
  1015. tristate "Conexant Digicolor RTC"
  1016. depends on ARCH_DIGICOLOR || COMPILE_TEST
  1017. help
  1018. If you say yes here you get support for the RTC on Conexant
  1019. Digicolor platforms. This currently includes the CX92755 SoC.
  1020. This driver can also be built as a module. If so, the module
  1021. will be called rtc-digicolor.
  1022. config RTC_DRV_IMXDI
  1023. tristate "Freescale IMX DryIce Real Time Clock"
  1024. depends on ARCH_MXC
  1025. help
  1026. Support for Freescale IMX DryIce RTC
  1027. This driver can also be built as a module, if so, the module
  1028. will be called "rtc-imxdi".
  1029. config RTC_DRV_OMAP
  1030. tristate "TI OMAP Real Time Clock"
  1031. depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST
  1032. depends on OF
  1033. depends on PINCTRL
  1034. select GENERIC_PINCONF
  1035. help
  1036. Say "yes" here to support the on chip real time clock
  1037. present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
  1038. This driver can also be built as a module, if so, module
  1039. will be called rtc-omap.
  1040. config HAVE_S3C_RTC
  1041. bool
  1042. help
  1043. This will include RTC support for Samsung SoCs. If
  1044. you want to include RTC support for any machine, kindly
  1045. select this in the respective mach-XXXX/Kconfig file.
  1046. config RTC_DRV_S3C
  1047. tristate "Samsung S3C series SoC RTC"
  1048. depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST
  1049. help
  1050. RTC (Realtime Clock) driver for the clock inbuilt into the
  1051. Samsung S3C24XX series of SoCs. This can provide periodic
  1052. interrupt rates from 1Hz to 64Hz for user programs, and
  1053. wakeup from Alarm.
  1054. The driver currently supports the common features on all the
  1055. S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
  1056. and S3C2442.
  1057. This driver can also be build as a module. If so, the module
  1058. will be called rtc-s3c.
  1059. config RTC_DRV_EP93XX
  1060. tristate "Cirrus Logic EP93XX"
  1061. depends on ARCH_EP93XX || COMPILE_TEST
  1062. help
  1063. If you say yes here you get support for the
  1064. RTC embedded in the Cirrus Logic EP93XX processors.
  1065. This driver can also be built as a module. If so, the module
  1066. will be called rtc-ep93xx.
  1067. config RTC_DRV_SA1100
  1068. tristate "SA11x0/PXA2xx/PXA910"
  1069. depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
  1070. help
  1071. If you say Y here you will get access to the real time clock
  1072. built into your SA11x0 or PXA2xx CPU.
  1073. To compile this driver as a module, choose M here: the
  1074. module will be called rtc-sa1100.
  1075. config RTC_DRV_SH
  1076. tristate "SuperH On-Chip RTC"
  1077. depends on SUPERH || ARCH_RENESAS
  1078. help
  1079. Say Y here to enable support for the on-chip RTC found in
  1080. most SuperH processors. This RTC is also found in RZ/A SoCs.
  1081. To compile this driver as a module, choose M here: the
  1082. module will be called rtc-sh.
  1083. config RTC_DRV_VR41XX
  1084. tristate "NEC VR41XX"
  1085. depends on CPU_VR41XX || COMPILE_TEST
  1086. help
  1087. If you say Y here you will get access to the real time clock
  1088. built into your NEC VR41XX CPU.
  1089. To compile this driver as a module, choose M here: the
  1090. module will be called rtc-vr41xx.
  1091. config RTC_DRV_PL030
  1092. tristate "ARM AMBA PL030 RTC"
  1093. depends on ARM_AMBA
  1094. help
  1095. If you say Y here you will get access to ARM AMBA
  1096. PrimeCell PL030 RTC found on certain ARM SOCs.
  1097. To compile this driver as a module, choose M here: the
  1098. module will be called rtc-pl030.
  1099. config RTC_DRV_PL031
  1100. tristate "ARM AMBA PL031 RTC"
  1101. depends on ARM_AMBA
  1102. help
  1103. If you say Y here you will get access to ARM AMBA
  1104. PrimeCell PL031 RTC found on certain ARM SOCs.
  1105. To compile this driver as a module, choose M here: the
  1106. module will be called rtc-pl031.
  1107. config RTC_DRV_AT32AP700X
  1108. tristate "AT32AP700X series RTC"
  1109. depends on PLATFORM_AT32AP || COMPILE_TEST
  1110. help
  1111. Driver for the internal RTC (Realtime Clock) on Atmel AVR32
  1112. AT32AP700x family processors.
  1113. config RTC_DRV_AT91RM9200
  1114. tristate "AT91RM9200 or some AT91SAM9 RTC"
  1115. depends on ARCH_AT91 || COMPILE_TEST
  1116. help
  1117. Driver for the internal RTC (Realtime Clock) module found on
  1118. Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
  1119. this is powered by the backup power supply.
  1120. config RTC_DRV_AT91SAM9
  1121. tristate "AT91SAM9 RTT as RTC"
  1122. depends on ARCH_AT91 || COMPILE_TEST
  1123. select MFD_SYSCON
  1124. help
  1125. Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which
  1126. can be used as an RTC thanks to the backup power supply (e.g. a
  1127. small coin cell battery) which keeps this block and the GPBR
  1128. (General Purpose Backup Registers) block powered when the device
  1129. is shutdown.
  1130. Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd
  1131. probably want to use the real RTC block instead of the "RTT as an
  1132. RTC" driver.
  1133. config RTC_DRV_AU1XXX
  1134. tristate "Au1xxx Counter0 RTC support"
  1135. depends on MIPS_ALCHEMY
  1136. help
  1137. This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
  1138. counter) to be used as a RTC.
  1139. This driver can also be built as a module. If so, the module
  1140. will be called rtc-au1xxx.
  1141. config RTC_DRV_BFIN
  1142. tristate "Blackfin On-Chip RTC"
  1143. depends on BLACKFIN && !BF561
  1144. help
  1145. If you say yes here you will get support for the
  1146. Blackfin On-Chip Real Time Clock.
  1147. This driver can also be built as a module. If so, the module
  1148. will be called rtc-bfin.
  1149. config RTC_DRV_RS5C313
  1150. tristate "Ricoh RS5C313"
  1151. depends on SH_LANDISK
  1152. help
  1153. If you say yes here you get support for the Ricoh RS5C313 RTC chips.
  1154. config RTC_DRV_GENERIC
  1155. tristate "Generic RTC support"
  1156. # Please consider writing a new RTC driver instead of using the generic
  1157. # RTC abstraction
  1158. depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST
  1159. help
  1160. Say Y or M here to enable RTC support on systems using the generic
  1161. RTC abstraction. If you do not know what you are doing, you should
  1162. just say Y.
  1163. config RTC_DRV_PXA
  1164. tristate "PXA27x/PXA3xx"
  1165. depends on ARCH_PXA
  1166. select RTC_DRV_SA1100
  1167. help
  1168. If you say Y here you will get access to the real time clock
  1169. built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs
  1170. consisting of an SA1100 compatible RTC and the extended PXA RTC.
  1171. This RTC driver uses PXA RTC registers available since pxa27x
  1172. series (RDxR, RYxR) instead of legacy RCNR, RTAR.
  1173. config RTC_DRV_VT8500
  1174. tristate "VIA/WonderMedia 85xx SoC RTC"
  1175. depends on ARCH_VT8500 || COMPILE_TEST
  1176. help
  1177. If you say Y here you will get access to the real time clock
  1178. built into your VIA VT8500 SoC or its relatives.
  1179. config RTC_DRV_SUN4V
  1180. bool "SUN4V Hypervisor RTC"
  1181. depends on SPARC64
  1182. help
  1183. If you say Y here you will get support for the Hypervisor
  1184. based RTC on SUN4V systems.
  1185. config RTC_DRV_SUN6I
  1186. bool "Allwinner A31 RTC"
  1187. default MACH_SUN6I || MACH_SUN8I
  1188. depends on COMMON_CLK
  1189. depends on ARCH_SUNXI || COMPILE_TEST
  1190. help
  1191. If you say Y here you will get support for the RTC found in
  1192. some Allwinner SoCs like the A31 or the A64.
  1193. config RTC_DRV_SUNXI
  1194. tristate "Allwinner sun4i/sun7i RTC"
  1195. depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST
  1196. help
  1197. If you say Y here you will get support for the RTC found on
  1198. Allwinner A10/A20.
  1199. config RTC_DRV_STARFIRE
  1200. bool "Starfire RTC"
  1201. depends on SPARC64
  1202. help
  1203. If you say Y here you will get support for the RTC found on
  1204. Starfire systems.
  1205. config RTC_DRV_TX4939
  1206. tristate "TX4939 SoC"
  1207. depends on SOC_TX4939
  1208. help
  1209. Driver for the internal RTC (Realtime Clock) module found on
  1210. Toshiba TX4939 SoC.
  1211. config RTC_DRV_MV
  1212. tristate "Marvell SoC RTC"
  1213. depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST
  1214. help
  1215. If you say yes here you will get support for the in-chip RTC
  1216. that can be found in some of Marvell's SoC devices, such as
  1217. the Kirkwood 88F6281 and 88F6192.
  1218. This driver can also be built as a module. If so, the module
  1219. will be called rtc-mv.
  1220. config RTC_DRV_ARMADA38X
  1221. tristate "Armada 38x Marvell SoC RTC"
  1222. depends on ARCH_MVEBU || COMPILE_TEST
  1223. help
  1224. If you say yes here you will get support for the in-chip RTC
  1225. that can be found in the Armada 38x Marvell's SoC device
  1226. This driver can also be built as a module. If so, the module
  1227. will be called armada38x-rtc.
  1228. config RTC_DRV_FTRTC010
  1229. tristate "Faraday Technology FTRTC010 RTC"
  1230. depends on HAS_IOMEM
  1231. default ARCH_GEMINI
  1232. help
  1233. If you say Y here you will get support for the
  1234. Faraday Technolog FTRTC010 found on e.g. Gemini SoC's.
  1235. This driver can also be built as a module. If so, the module
  1236. will be called rtc-ftrtc010.
  1237. config RTC_DRV_PS3
  1238. tristate "PS3 RTC"
  1239. depends on PPC_PS3
  1240. help
  1241. If you say yes here you will get support for the RTC on PS3.
  1242. This driver can also be built as a module. If so, the module
  1243. will be called rtc-ps3.
  1244. config RTC_DRV_COH901331
  1245. tristate "ST-Ericsson COH 901 331 RTC"
  1246. depends on ARCH_U300 || COMPILE_TEST
  1247. help
  1248. If you say Y here you will get access to ST-Ericsson
  1249. COH 901 331 RTC clock found in some ST-Ericsson Mobile
  1250. Platforms.
  1251. This driver can also be built as a module. If so, the module
  1252. will be called "rtc-coh901331".
  1253. config RTC_DRV_STMP
  1254. tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
  1255. depends on ARCH_MXS || COMPILE_TEST
  1256. select STMP_DEVICE
  1257. help
  1258. If you say yes here you will get support for the onboard
  1259. STMP3xxx/i.MX23/i.MX28 RTC.
  1260. This driver can also be built as a module. If so, the module
  1261. will be called rtc-stmp3xxx.
  1262. config RTC_DRV_PCAP
  1263. tristate "PCAP RTC"
  1264. depends on EZX_PCAP
  1265. help
  1266. If you say Y here you will get support for the RTC found on
  1267. the PCAP2 ASIC used on some Motorola phones.
  1268. config RTC_DRV_MC13XXX
  1269. depends on MFD_MC13XXX
  1270. tristate "Freescale MC13xxx RTC"
  1271. help
  1272. This enables support for the RTCs found on Freescale's PMICs
  1273. MC13783 and MC13892.
  1274. config RTC_DRV_MPC5121
  1275. tristate "Freescale MPC5121 built-in RTC"
  1276. depends on PPC_MPC512x || PPC_MPC52xx
  1277. help
  1278. If you say yes here you will get support for the
  1279. built-in RTC on MPC5121 or on MPC5200.
  1280. This driver can also be built as a module. If so, the module
  1281. will be called rtc-mpc5121.
  1282. config RTC_DRV_JZ4740
  1283. tristate "Ingenic JZ4740 SoC"
  1284. depends on MACH_INGENIC || COMPILE_TEST
  1285. help
  1286. If you say yes here you get support for the Ingenic JZ47xx SoCs RTC
  1287. controllers.
  1288. This driver can also be buillt as a module. If so, the module
  1289. will be called rtc-jz4740.
  1290. config RTC_DRV_LPC24XX
  1291. tristate "NXP RTC for LPC178x/18xx/408x/43xx"
  1292. depends on ARCH_LPC18XX || COMPILE_TEST
  1293. depends on OF && HAS_IOMEM
  1294. help
  1295. This enables support for the NXP RTC found which can be found on
  1296. NXP LPC178x/18xx/408x/43xx devices.
  1297. If you have one of the devices above enable this driver to use
  1298. the hardware RTC. This driver can also be built as a module. If
  1299. so, the module will be called rtc-lpc24xx.
  1300. config RTC_DRV_LPC32XX
  1301. depends on ARCH_LPC32XX || COMPILE_TEST
  1302. tristate "NXP LPC32XX RTC"
  1303. help
  1304. This enables support for the NXP RTC in the LPC32XX
  1305. This driver can also be built as a module. If so, the module
  1306. will be called rtc-lpc32xx.
  1307. config RTC_DRV_PM8XXX
  1308. tristate "Qualcomm PMIC8XXX RTC"
  1309. depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST
  1310. help
  1311. If you say yes here you get support for the
  1312. Qualcomm PMIC8XXX RTC.
  1313. To compile this driver as a module, choose M here: the
  1314. module will be called rtc-pm8xxx.
  1315. config RTC_DRV_TEGRA
  1316. tristate "NVIDIA Tegra Internal RTC driver"
  1317. depends on ARCH_TEGRA || COMPILE_TEST
  1318. help
  1319. If you say yes here you get support for the
  1320. Tegra 200 series internal RTC module.
  1321. This drive can also be built as a module. If so, the module
  1322. will be called rtc-tegra.
  1323. config RTC_DRV_TILE
  1324. tristate "Tilera hypervisor RTC support"
  1325. depends on TILE
  1326. help
  1327. Enable support for the Linux driver side of the Tilera
  1328. hypervisor's real-time clock interface.
  1329. config RTC_DRV_PUV3
  1330. tristate "PKUnity v3 RTC support"
  1331. depends on ARCH_PUV3
  1332. help
  1333. This enables support for the RTC in the PKUnity-v3 SoCs.
  1334. This drive can also be built as a module. If so, the module
  1335. will be called rtc-puv3.
  1336. config RTC_DRV_LOONGSON1
  1337. tristate "loongson1 RTC support"
  1338. depends on MACH_LOONGSON32
  1339. help
  1340. This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
  1341. counter) to be used as a RTC.
  1342. This driver can also be built as a module. If so, the module
  1343. will be called rtc-ls1x.
  1344. config RTC_DRV_MXC
  1345. tristate "Freescale MXC Real Time Clock"
  1346. depends on ARCH_MXC
  1347. help
  1348. If you say yes here you get support for the Freescale MXC
  1349. RTC module.
  1350. This driver can also be built as a module, if so, the module
  1351. will be called "rtc-mxc".
  1352. config RTC_DRV_SNVS
  1353. tristate "Freescale SNVS RTC support"
  1354. select REGMAP_MMIO
  1355. depends on HAS_IOMEM
  1356. depends on OF
  1357. help
  1358. If you say yes here you get support for the Freescale SNVS
  1359. Low Power (LP) RTC module.
  1360. This driver can also be built as a module, if so, the module
  1361. will be called "rtc-snvs".
  1362. config RTC_DRV_SIRFSOC
  1363. tristate "SiRFSOC RTC"
  1364. depends on ARCH_SIRF
  1365. help
  1366. Say "yes" here to support the real time clock on SiRF SOC chips.
  1367. This driver can also be built as a module called rtc-sirfsoc.
  1368. config RTC_DRV_ST_LPC
  1369. tristate "STMicroelectronics LPC RTC"
  1370. depends on ARCH_STI
  1371. depends on OF
  1372. help
  1373. Say Y here to include STMicroelectronics Low Power Controller
  1374. (LPC) based RTC support.
  1375. To compile this driver as a module, choose M here: the
  1376. module will be called rtc-st-lpc.
  1377. config RTC_DRV_MOXART
  1378. tristate "MOXA ART RTC"
  1379. depends on ARCH_MOXART || COMPILE_TEST
  1380. help
  1381. If you say yes here you get support for the MOXA ART
  1382. RTC module.
  1383. This driver can also be built as a module. If so, the module
  1384. will be called rtc-moxart
  1385. config RTC_DRV_MT6358
  1386. tristate "Mediatek Real Time Clock driver"
  1387. depends on MFD_MT6358 || (COMPILE_TEST && IRQ_DOMAIN)
  1388. help
  1389. This selects the Mediatek(R) RTC driver. RTC is part of Mediatek
  1390. MT6358 PMIC. You should enable MT6358 PMIC MFD before select
  1391. Mediatek(R) RTC driver.
  1392. If you want to use Mediatek(R) RTC interface, select Y or M here.
  1393. config RTC_DRV_MT6397
  1394. tristate "Mediatek Real Time Clock driver"
  1395. depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN)
  1396. help
  1397. This selects the Mediatek(R) RTC driver. RTC is part of Mediatek
  1398. MT6397 PMIC. You should enable MT6397 PMIC MFD before select
  1399. Mediatek(R) RTC driver.
  1400. If you want to use Mediatek(R) RTC interface, select Y or M here.
  1401. config RTC_DRV_XGENE
  1402. tristate "APM X-Gene RTC"
  1403. depends on HAS_IOMEM
  1404. depends on ARCH_XGENE || COMPILE_TEST
  1405. help
  1406. If you say yes here you get support for the APM X-Gene SoC real time
  1407. clock.
  1408. This driver can also be built as a module, if so, the module
  1409. will be called "rtc-xgene".
  1410. config RTC_DRV_PIC32
  1411. tristate "Microchip PIC32 RTC"
  1412. depends on MACH_PIC32
  1413. default y
  1414. help
  1415. If you say yes here you get support for the PIC32 RTC module.
  1416. This driver can also be built as a module. If so, the module
  1417. will be called rtc-pic32
  1418. config RTC_DRV_R7301
  1419. tristate "EPSON TOYOCOM RTC-7301SF/DG"
  1420. select REGMAP_MMIO
  1421. depends on OF && HAS_IOMEM
  1422. help
  1423. If you say yes here you get support for the EPSON TOYOCOM
  1424. RTC-7301SF/DG chips.
  1425. This driver can also be built as a module. If so, the module
  1426. will be called rtc-r7301.
  1427. config RTC_DRV_STM32
  1428. tristate "STM32 RTC"
  1429. select REGMAP_MMIO
  1430. depends on ARCH_STM32 || COMPILE_TEST
  1431. help
  1432. If you say yes here you get support for the STM32 On-Chip
  1433. Real Time Clock.
  1434. This driver can also be built as a module, if so, the module
  1435. will be called "rtc-stm32".
  1436. config RTC_DRV_CPCAP
  1437. depends on MFD_CPCAP
  1438. tristate "Motorola CPCAP RTC"
  1439. help
  1440. Say y here for CPCAP rtc found on some Motorola phones
  1441. and tablets such as Droid 4.
  1442. config RTC_DRV_RTD119X
  1443. bool "Realtek RTD129x RTC"
  1444. depends on ARCH_REALTEK || COMPILE_TEST
  1445. default ARCH_REALTEK
  1446. help
  1447. If you say yes here, you get support for the RTD1295 SoC
  1448. Real Time Clock.
  1449. comment "HID Sensor RTC drivers"
  1450. config RTC_DRV_HID_SENSOR_TIME
  1451. tristate "HID Sensor Time"
  1452. depends on USB_HID
  1453. select IIO
  1454. select HID_SENSOR_HUB
  1455. select HID_SENSOR_IIO_COMMON
  1456. help
  1457. Say yes here to build support for the HID Sensors of type Time.
  1458. This drivers makes such sensors available as RTCs.
  1459. If this driver is compiled as a module, it will be named
  1460. rtc-hid-sensor-time.
  1461. config RTC_DRV_GOLDFISH
  1462. tristate "Goldfish Real Time Clock"
  1463. depends on MIPS && (GOLDFISH || COMPILE_TEST)
  1464. help
  1465. Say yes to enable RTC driver for the Goldfish based virtual platform.
  1466. Goldfish is a code name for the virtual platform developed by Google
  1467. for Android emulation.
  1468. endif # RTC_CLASS