1# SPDX-License-Identifier: GPL-2.0-only
   2#
   3# RTC class/drivers configuration
   4#
   5
   6config RTC_LIB
   7	bool
   8
   9config RTC_MC146818_LIB
  10	bool
  11	select RTC_LIB
  12
  13menuconfig RTC_CLASS
  14	bool "Real Time Clock"
  15	default n
  16	depends on !S390
  17	select RTC_LIB
  18	help
  19	  Generic RTC class support. If you say yes here, you will
  20	  be allowed to plug one or more RTCs to your system. You will
  21	  probably want to enable one or more of the interfaces below.
  22
  23if RTC_CLASS
  24
  25config RTC_HCTOSYS
  26	bool "Set system time from RTC on startup and resume"
 
  27	default y
  28	help
  29	  If you say yes here, the system time (wall clock) will be set using
  30	  the value read from a specified RTC device. This is useful to avoid
  31	  unnecessary fsck runs at boot time, and to network better.
  32
  33config RTC_HCTOSYS_DEVICE
  34	string "RTC used to set the system time"
  35	depends on RTC_HCTOSYS
  36	default "rtc0"
  37	help
  38	  The RTC device that will be used to (re)initialize the system
  39	  clock, usually rtc0. Initialization is done when the system
  40	  starts up, and when it resumes from a low power state. This
  41	  device should record time in UTC, since the kernel won't do
  42	  timezone correction.
  43
 
 
 
  44	  This clock should be battery-backed, so that it reads the correct
  45	  time when the system boots from a power-off state. Otherwise, your
  46	  system will need an external clock source (like an NTP server).
  47
  48	  If the clock you specify here is not battery backed, it may still
  49	  be useful to reinitialize system time when resuming from system
  50	  sleep states. Do not specify an RTC here unless it stays powered
  51	  during all this system's supported sleep states.
  52
  53config RTC_SYSTOHC
  54	bool "Set the RTC time based on NTP synchronization"
  55	default y
  56	help
  57	  If you say yes here, the system time (wall clock) will be stored
  58	  in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
  59	  minutes if userspace reports synchronized NTP status.
  60
  61config RTC_SYSTOHC_DEVICE
  62	string "RTC used to synchronize NTP adjustment"
  63	depends on RTC_SYSTOHC
  64	default RTC_HCTOSYS_DEVICE if RTC_HCTOSYS
  65	default "rtc0"
  66	help
  67	  The RTC device used for NTP synchronization. The main difference
  68	  between RTC_HCTOSYS_DEVICE and RTC_SYSTOHC_DEVICE is that this
  69	  one can sleep when setting time, because it runs in the workqueue
  70	  context.
  71
  72config RTC_DEBUG
  73	bool "RTC debug support"
 
  74	help
  75	  Say yes here to enable debugging support in the RTC framework
  76	  and individual RTC drivers.
  77
  78config RTC_LIB_KUNIT_TEST
  79	tristate "KUnit test for RTC lib functions" if !KUNIT_ALL_TESTS
  80	depends on KUNIT
  81	default KUNIT_ALL_TESTS
  82	help
  83	  Enable this option to test RTC library functions.
  84
  85	  If unsure, say N.
  86
  87config RTC_NVMEM
  88	bool "RTC non volatile storage support"
  89	select NVMEM
  90	default RTC_CLASS
  91	help
  92	  Say yes here to add support for the non volatile (often battery
  93	  backed) storage present on RTCs.
  94
  95comment "RTC interfaces"
  96
  97config RTC_INTF_SYSFS
  98	bool "/sys/class/rtc/rtcN (sysfs)"
  99	depends on SYSFS
 100	default RTC_CLASS
 101	help
 102	  Say yes here if you want to use your RTCs using sysfs interfaces,
 103	  /sys/class/rtc/rtc0 through /sys/.../rtcN.
 104
 105	  If unsure, say Y.
 106
 107config RTC_INTF_PROC
 108	bool "/proc/driver/rtc (procfs for rtcN)"
 109	depends on PROC_FS
 110	default RTC_CLASS
 111	help
 112	  Say yes here if you want to use your system clock RTC through
 113	  the proc interface, /proc/driver/rtc.
 114	  Other RTCs will not be available through that API.
 115	  If there is no RTC for the system clock, then the first RTC(rtc0)
 116	  is used by default.
 117
 118	  If unsure, say Y.
 119
 120config RTC_INTF_DEV
 121	bool "/dev/rtcN (character devices)"
 122	default RTC_CLASS
 123	help
 124	  Say yes here if you want to use your RTCs using the /dev
 125	  interfaces, which "udev" sets up as /dev/rtc0 through
 126	  /dev/rtcN.
 127
 128	  You may want to set up a symbolic link so one of these
 129	  can be accessed as /dev/rtc, which is a name
 130	  expected by "hwclock" and some other programs. Recent
 131	  versions of "udev" are known to set up the symlink for you.
 132
 133	  If unsure, say Y.
 134
 135config RTC_INTF_DEV_UIE_EMUL
 136	bool "RTC UIE emulation on dev interface"
 137	depends on RTC_INTF_DEV
 138	help
 139	  Provides an emulation for RTC_UIE if the underlying rtc chip
 140	  driver does not expose RTC_UIE ioctls. Those requests generate
 141	  once-per-second update interrupts, used for synchronization.
 142
 143	  The emulation code will read the time from the hardware
 144	  clock several times per second, please enable this option
 145	  only if you know that you really need it.
 146
 147config RTC_DRV_TEST
 148	tristate "Test driver/device"
 149	help
 150	  If you say yes here you get support for the
 151	  RTC test driver. It's a software RTC which can be
 152	  used to test the RTC subsystem APIs. It gets
 153	  the time from the system clock.
 154	  You want this driver only if you are doing development
 155	  on the RTC subsystem. Please read the source code
 156	  for further details.
 157
 158	  This driver can also be built as a module. If so, the module
 159	  will be called rtc-test.
 160
 161comment "I2C RTC drivers"
 
 162
 163if I2C
 164
 165config RTC_DRV_88PM860X
 166	tristate "Marvell 88PM860x"
 167	depends on MFD_88PM860X
 168	help
 169	  If you say yes here you get support for RTC function in Marvell
 170	  88PM860x chips.
 171
 172	  This driver can also be built as a module. If so, the module
 173	  will be called rtc-88pm860x.
 174
 175config RTC_DRV_88PM80X
 176	tristate "Marvell 88PM80x"
 177	depends on MFD_88PM800
 178	help
 179	  If you say yes here you get support for RTC function in Marvell
 180	  88PM80x chips.
 181
 182	  This driver can also be built as a module. If so, the module
 183	  will be called rtc-88pm80x.
 184
 185config RTC_DRV_ABB5ZES3
 186	select REGMAP_I2C
 187	tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
 188	help
 189	  If you say yes here you get support for the Abracon
 190	  AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.
 191
 192	  This driver can also be built as a module. If so, the module
 193	  will be called rtc-ab-b5ze-s3.
 194
 195config RTC_DRV_ABEOZ9
 196	select REGMAP_I2C
 197	tristate "Abracon AB-RTCMC-32.768kHz-EOZ9"
 198	help
 199	  If you say yes here you get support for the Abracon
 200	  AB-RTCMC-32.768kHz-EOA9 I2C RTC chip.
 201
 202	  This driver can also be built as a module. If so, the module
 203	  will be called rtc-ab-e0z9.
 204
 205config RTC_DRV_ABX80X
 206	tristate "Abracon ABx80x"
 207	select WATCHDOG_CORE if WATCHDOG
 208	help
 209	  If you say yes here you get support for Abracon AB080X and AB180X
 210	  families of ultra-low-power  battery- and capacitor-backed real-time
 211	  clock chips.
 212
 213	  This driver can also be built as a module. If so, the module
 214	  will be called rtc-abx80x.
 215
 216config RTC_DRV_AC100
 217	tristate "X-Powers AC100"
 218	depends on MFD_AC100
 219	help
 220	  If you say yes here you get support for the real-time clock found
 221	  in X-Powers AC100 family peripheral ICs.
 222
 223	  This driver can also be built as a module. If so, the module
 224	  will be called rtc-ac100.
 225
 226config RTC_DRV_BRCMSTB
 227	tristate "Broadcom STB wake-timer"
 228	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
 229	default ARCH_BRCMSTB || BMIPS_GENERIC
 230	help
 231	  If you say yes here you get support for the wake-timer found on
 232	  Broadcom STB SoCs (BCM7xxx).
 233
 234	  This driver can also be built as a module. If so, the module will
 235	  be called rtc-brcmstb-waketimer.
 236
 237config RTC_DRV_AS3722
 238	tristate "ams AS3722 RTC driver"
 239	depends on MFD_AS3722
 240	help
 241	  If you say yes here you get support for the RTC of ams AS3722 PMIC
 242	  chips.
 243
 244	  This driver can also be built as a module. If so, the module
 245	  will be called rtc-as3722.
 246
 247config RTC_DRV_DS1307
 248	tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057"
 249	select REGMAP_I2C
 250	select WATCHDOG_CORE if WATCHDOG
 251	help
 252	  If you say yes here you get support for various compatible RTC
 253	  chips (often with battery backup) connected with I2C. This driver
 254	  should handle DS1307, DS1337, DS1338, DS1339, DS1340, DS1341,
 255	  ST M41T00, EPSON RX-8025, Intersil ISL12057 and probably other chips.
 256	  In some cases the RTC must already have been initialized (by
 257	  manufacturing or a bootloader).
 258
 259	  The first seven registers on these chips hold an RTC, and other
 260	  registers may add features such as NVRAM, a trickle charger for
 261	  the RTC/NVRAM backup power, and alarms. NVRAM is visible in
 262	  sysfs, but other chip features may not be available.
 263
 264	  This driver can also be built as a module. If so, the module
 265	  will be called rtc-ds1307.
 266
 267config RTC_DRV_DS1307_CENTURY
 268	bool "Century bit support for rtc-ds1307"
 269	depends on RTC_DRV_DS1307
 270	default n
 271	help
 272	  The DS1307 driver suffered from a bug where it was enabling the
 273	  century bit inconditionnally but never used it when reading the time.
 274	  It made the driver unable to support dates beyond 2099.
 275	  Setting this option will add proper support for the century bit but if
 276	  the time was previously set using a kernel predating this option,
 277	  reading the date will return a date in the next century.
 278	  To solve that, you could boot a kernel without this option set, set
 279	  the RTC date and then boot a kernel with this option set.
 280
 281config RTC_DRV_DS1374
 282	tristate "Dallas/Maxim DS1374"
 
 283	help
 284	  If you say yes here you get support for Dallas Semiconductor
 285	  DS1374 real-time clock chips. If an interrupt is associated
 286	  with the device, the alarm functionality is supported.
 287
 288	  This driver can also be built as a module. If so, the module
 289	  will be called rtc-ds1374.
 290
 291config RTC_DRV_DS1374_WDT
 292	bool "Dallas/Maxim DS1374 watchdog timer"
 293	depends on RTC_DRV_DS1374 && WATCHDOG
 294	select WATCHDOG_CORE
 295	help
 296	  If you say Y here you will get support for the
 297	  watchdog timer in the Dallas Semiconductor DS1374
 298	  real-time clock chips.
 299
 300config RTC_DRV_DS1672
 301	tristate "Dallas/Maxim DS1672"
 302	help
 303	  If you say yes here you get support for the
 304	  Dallas/Maxim DS1672 timekeeping chip.
 305
 306	  This driver can also be built as a module. If so, the module
 307	  will be called rtc-ds1672.
 308
 309config RTC_DRV_HYM8563
 310	tristate "Haoyu Microelectronics HYM8563"
 311	depends on OF
 312	help
 313	  Say Y to enable support for the HYM8563 I2C RTC chip. Apart
 314	  from the usual rtc functions it provides a clock output of
 315	  up to 32kHz.
 316
 317	  This driver can also be built as a module. If so, the module
 318	  will be called rtc-hym8563.
 319
 320config RTC_DRV_LP8788
 321	tristate "TI LP8788 RTC driver"
 322	depends on MFD_LP8788
 323	help
 324	  Say Y to enable support for the LP8788 RTC/ALARM driver.
 325
 326config RTC_DRV_MAX6900
 327	tristate "Maxim MAX6900"
 328	help
 329	  If you say yes here you will get support for the
 330	  Maxim MAX6900 I2C RTC chip.
 331
 332	  This driver can also be built as a module. If so, the module
 333	  will be called rtc-max6900.
 334
 335config RTC_DRV_MAX8907
 336	tristate "Maxim MAX8907"
 337	depends on MFD_MAX8907 || COMPILE_TEST
 338	select REGMAP_IRQ
 339	help
 340	  If you say yes here you will get support for the
 341	  RTC of Maxim MAX8907 PMIC.
 342
 343	  This driver can also be built as a module. If so, the module
 344	  will be called rtc-max8907.
 345
 346config RTC_DRV_MAX8925
 347	tristate "Maxim MAX8925"
 348	depends on MFD_MAX8925
 349	help
 350	  If you say yes here you will get support for the
 351	  RTC of Maxim MAX8925 PMIC.
 352
 353	  This driver can also be built as a module. If so, the module
 354	  will be called rtc-max8925.
 355
 356config RTC_DRV_MAX8998
 357	tristate "Maxim MAX8998"
 358	depends on MFD_MAX8998
 359	help
 360	  If you say yes here you will get support for the
 361	  RTC of Maxim MAX8998 PMIC.
 362
 363	  This driver can also be built as a module. If so, the module
 364	  will be called rtc-max8998.
 365
 366config RTC_DRV_MAX8997
 367	tristate "Maxim MAX8997"
 368	depends on MFD_MAX8997
 369	help
 370	  If you say yes here you will get support for the
 371	  RTC of Maxim MAX8997 PMIC.
 372
 373	  This driver can also be built as a module. If so, the module
 374	  will be called rtc-max8997.
 375
 376config RTC_DRV_MAX77686
 377	tristate "Maxim MAX77686"
 378	depends on MFD_MAX77686 || MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
 379	help
 380	  If you say yes here you will get support for the
 381	  RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC.
 382
 383	  This driver can also be built as a module. If so, the module
 384	  will be called rtc-max77686.
 385
 386config RTC_DRV_NCT3018Y
 387	tristate "Nuvoton NCT3018Y"
 388	depends on OF
 389	help
 390	   If you say yes here you get support for the Nuvoton NCT3018Y I2C RTC
 391	   chip.
 392
 393	   This driver can also be built as a module, if so, the module will be
 394	   called "rtc-nct3018y".
 395
 396config RTC_DRV_RK808
 397	tristate "Rockchip RK805/RK808/RK809/RK817/RK818 RTC"
 398	depends on MFD_RK808
 399	help
 400	  If you say yes here you will get support for the
 401	  RTC of RK805, RK809 and RK817, RK808 and RK818 PMIC.
 402
 403	  This driver can also be built as a module. If so, the module
 404	  will be called rk808-rtc.
 405
 406config RTC_DRV_RS5C372
 407	tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
 408	help
 409	  If you say yes here you get support for the
 410	  Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
 411
 412	  This driver can also be built as a module. If so, the module
 413	  will be called rtc-rs5c372.
 414
 415config RTC_DRV_ISL1208
 416	tristate "Intersil ISL1208"
 417	help
 418	  If you say yes here you get support for the
 419	  Intersil ISL1208 RTC chip.
 420
 421	  This driver can also be built as a module. If so, the module
 422	  will be called rtc-isl1208.
 423
 424config RTC_DRV_ISL12022
 425	tristate "Intersil ISL12022"
 426	select REGMAP_I2C
 427	help
 428	  If you say yes here you get support for the
 429	  Intersil ISL12022 RTC chip.
 430
 431	  This driver can also be built as a module. If so, the module
 432	  will be called rtc-isl12022.
 433
 434config RTC_DRV_ISL12026
 435	tristate "Intersil ISL12026"
 436	depends on OF
 437	help
 438	  If you say yes here you get support for the
 439	  Intersil ISL12026 RTC chip.
 440
 441	  This driver can also be built as a module. If so, the module
 442	  will be called rtc-isl12026.
 443
 444config RTC_DRV_X1205
 445	tristate "Xicor/Intersil X1205"
 446	help
 447	  If you say yes here you get support for the
 448	  Xicor/Intersil X1205 RTC chip.
 449
 450	  This driver can also be built as a module. If so, the module
 451	  will be called rtc-x1205.
 452
 453config RTC_DRV_PCF8523
 454	tristate "NXP PCF8523"
 455	select REGMAP_I2C
 456	help
 457	  If you say yes here you get support for the NXP PCF8523 RTC
 458	  chips.
 459
 460	  This driver can also be built as a module. If so, the module
 461	  will be called rtc-pcf8523.
 462
 463config RTC_DRV_PCF85063
 464	tristate "NXP PCF85063"
 465	select REGMAP_I2C
 466	help
 467	  If you say yes here you get support for the PCF85063 RTC chip
 468
 469	  This driver can also be built as a module. If so, the module
 470	  will be called rtc-pcf85063.
 471
 472config RTC_DRV_PCF85363
 473	tristate "NXP PCF85363"
 474	select REGMAP_I2C
 475	help
 476	  If you say yes here you get support for the PCF85363 RTC chip.
 477
 478	  This driver can also be built as a module. If so, the module
 479	  will be called rtc-pcf85363.
 480
 481	  The nvmem interface will be named pcf85363-#, where # is the
 482	  zero-based instance number.
 483
 484config RTC_DRV_PCF8563
 485	tristate "Philips PCF8563/Epson RTC8564"
 486	help
 487	  If you say yes here you get support for the
 488	  Philips PCF8563 RTC chip. The Epson RTC8564
 489	  should work as well.
 490
 491	  This driver can also be built as a module. If so, the module
 492	  will be called rtc-pcf8563.
 493
 494config RTC_DRV_PCF8583
 495	tristate "Philips PCF8583"
 496	help
 497	  If you say yes here you get support for the Philips PCF8583
 498	  RTC chip found on Acorn RiscPCs. This driver supports the
 499	  platform specific method of retrieving the current year from
 500	  the RTC's SRAM. It will work on other platforms with the same
 501	  chip, but the year will probably have to be tweaked.
 502
 503	  This driver can also be built as a module. If so, the module
 504	  will be called rtc-pcf8583.
 505
 506config RTC_DRV_M41T80
 507	tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible"
 508	help
 509	  If you say Y here you will get support for the ST M41T60
 510	  and M41T80 RTC chips series. Currently, the following chips are
 511	  supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
 512	  M41ST85, M41ST87, and MicroCrystal RV4162.
 513
 514	  This driver can also be built as a module. If so, the module
 515	  will be called rtc-m41t80.
 516
 517config RTC_DRV_M41T80_WDT
 518	bool "ST M41T65/M41T80 series RTC watchdog timer"
 519	depends on RTC_DRV_M41T80
 520	help
 521	  If you say Y here you will get support for the
 522	  watchdog timer in the ST M41T60 and M41T80 RTC chips series.
 523
 524config RTC_DRV_BD70528
 525	tristate "ROHM BD71815 and BD71828 PMIC RTC"
 526	depends on MFD_ROHM_BD71828
 527	help
 528	  If you say Y here you will get support for the RTC
 529	  block on ROHM BD71815 and BD71828 Power Management IC.
 530
 531	  This driver can also be built as a module. If so, the module
 532	  will be called rtc-bd70528.
 533
 534config RTC_DRV_BQ32K
 535	tristate "TI BQ32000"
 536	help
 537	  If you say Y here you will get support for the TI
 538	  BQ32000 I2C RTC chip.
 539
 540	  This driver can also be built as a module. If so, the module
 541	  will be called rtc-bq32k.
 542
 
 
 
 
 
 
 543config RTC_DRV_TWL92330
 544	bool "TI TWL92330/Menelaus"
 545	depends on MENELAUS
 546	help
 547	  If you say yes here you get support for the RTC on the
 548	  TWL92330 "Menelaus" power management chip, used with OMAP2
 549	  platforms. The support is integrated with the rest of
 550	  the Menelaus driver; it's not separate module.
 551
 552config RTC_DRV_TWL4030
 553	tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
 554	depends on TWL4030_CORE
 555	depends on OF
 556	help
 557	  If you say yes here you get support for the RTC on the
 558	  TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
 559
 560	  This driver can also be built as a module. If so, the module
 561	  will be called rtc-twl.
 562
 563config RTC_DRV_PALMAS
 564	tristate "TI Palmas RTC driver"
 565	depends on MFD_PALMAS
 566	help
 567	  If you say yes here you get support for the RTC of TI PALMA series PMIC
 568	  chips.
 569
 570	  This driver can also be built as a module. If so, the module
 571	  will be called rtc-palma.
 572
 573config RTC_DRV_TPS6586X
 574	tristate "TI TPS6586X RTC driver"
 575	depends on MFD_TPS6586X
 576	help
 577	  TI Power Management IC TPS6586X supports RTC functionality
 578	  along with alarm. This driver supports the RTC driver for
 579	  the TPS6586X RTC module.
 580
 581config RTC_DRV_TPS65910
 582	tristate "TI TPS65910 RTC driver"
 583	depends on MFD_TPS65910
 584	help
 585	  If you say yes here you get support for the RTC on the
 586	  TPS65910 chips.
 587
 588	  This driver can also be built as a module. If so, the module
 589	  will be called rtc-tps65910.
 590
 591config RTC_DRV_RC5T583
 592	tristate "RICOH 5T583 RTC driver"
 593	depends on MFD_RC5T583
 594	help
 595	  If you say yes here you get support for the RTC on the
 596	  RICOH 5T583 chips.
 597
 598	  This driver can also be built as a module. If so, the module
 599	  will be called rtc-rc5t583.
 600
 601config RTC_DRV_RC5T619
 602	tristate "RICOH RC5T619 RTC driver"
 603	depends on MFD_RN5T618
 604	help
 605	  If you say yes here you get support for the RTC on the
 606	  RICOH RC5T619 chips.
 607
 608	  This driver can also be built as a module. If so, the module
 609	  will be called rtc-rc5t619.
 610
 611config RTC_DRV_S35390A
 612	tristate "Seiko Instruments S-35390A"
 613	select BITREVERSE
 614	help
 615	  If you say yes here you will get support for the Seiko
 616	  Instruments S-35390A.
 617
 618	  This driver can also be built as a module. If so the module
 619	  will be called rtc-s35390a.
 620
 621config RTC_DRV_FM3130
 622	tristate "Ramtron FM3130"
 623	help
 624	  If you say Y here you will get support for the
 625	  Ramtron FM3130 RTC chips.
 626	  Ramtron FM3130 is a chip with two separate devices inside,
 627	  RTC clock and FRAM. This driver provides only RTC functionality.
 628
 629	  This driver can also be built as a module. If so the module
 630	  will be called rtc-fm3130.
 631
 632config RTC_DRV_RX8010
 633	tristate "Epson RX8010SJ"
 634	select REGMAP_I2C
 635	help
 636	  If you say yes here you get support for the Epson RX8010SJ RTC
 637	  chip.
 638
 639	  This driver can also be built as a module. If so, the module
 640	  will be called rtc-rx8010.
 641
 642config RTC_DRV_RX8581
 643	tristate "Epson RX-8571/RX-8581"
 644	select REGMAP_I2C
 645	help
 646	  If you say yes here you will get support for the Epson RX-8571/
 647	  RX-8581.
 648
 649	  This driver can also be built as a module. If so the module
 650	  will be called rtc-rx8581.
 651
 652config RTC_DRV_RX8025
 653	tristate "Epson RX-8025SA/NB"
 654	help
 655	  If you say yes here you get support for the Epson
 656	  RX-8025SA/NB RTC chips.
 657
 658	  This driver can also be built as a module. If so, the module
 659	  will be called rtc-rx8025.
 660
 661config RTC_DRV_EM3027
 662	tristate "EM Microelectronic EM3027"
 663	help
 664	  If you say yes here you get support for the EM
 665	  Microelectronic EM3027 RTC chips.
 666
 667	  This driver can also be built as a module. If so, the module
 668	  will be called rtc-em3027.
 669
 670config RTC_DRV_RV3028
 671	tristate "Micro Crystal RV3028"
 672	select REGMAP_I2C
 673	help
 674	  If you say yes here you get support for the Micro Crystal
 675	  RV3028.
 676
 677	  This driver can also be built as a module. If so, the module
 678	  will be called rtc-rv3028.
 679
 680config RTC_DRV_RV3032
 681	tristate "Micro Crystal RV3032"
 682	select REGMAP_I2C
 683	help
 684	  If you say yes here you get support for the Micro Crystal
 685	  RV3032.
 686
 687	  This driver can also be built as a module. If so, the module
 688	  will be called rtc-rv3032.
 689
 690config RTC_DRV_RV8803
 691	tristate "Micro Crystal RV8803, Epson RX8900"
 692	help
 693	  If you say yes here you get support for the Micro Crystal RV8803 and
 694	  Epson RX8900 RTC chips.
 695
 696	  This driver can also be built as a module. If so, the module
 697	  will be called rtc-rv8803.
 698
 699config RTC_DRV_S5M
 700	tristate "Samsung S2M/S5M series"
 701	depends on MFD_SEC_CORE || COMPILE_TEST
 702	select REGMAP_IRQ
 703	select REGMAP_I2C
 704	help
 705	  If you say yes here you will get support for the
 706	  RTC of Samsung S2MPS14 and S5M PMIC series.
 707
 708	  This driver can also be built as a module. If so, the module
 709	  will be called rtc-s5m.
 710
 711config RTC_DRV_SD3078
 712	tristate "ZXW Shenzhen whwave SD3078"
 713	select REGMAP_I2C
 714	help
 715	  If you say yes here you get support for the ZXW Shenzhen whwave
 716	  SD3078 RTC chips.
 717
 718	  This driver can also be built as a module. If so, the module
 719	  will be called rtc-sd3078
 720
 721endif # I2C
 722
 723comment "SPI RTC drivers"
 724
 725if SPI_MASTER
 726
 727config RTC_DRV_M41T93
 728	tristate "ST M41T93"
 729	help
 730	  If you say yes here you will get support for the
 731	  ST M41T93 SPI RTC chip.
 732
 733	  This driver can also be built as a module. If so, the module
 734	  will be called rtc-m41t93.
 735
 736config RTC_DRV_M41T94
 737	tristate "ST M41T94"
 738	help
 739	  If you say yes here you will get support for the
 740	  ST M41T94 SPI RTC chip.
 741
 742	  This driver can also be built as a module. If so, the module
 743	  will be called rtc-m41t94.
 744
 745config RTC_DRV_DS1302
 746	tristate "Dallas/Maxim DS1302"
 747	depends on SPI
 748	help
 749	  If you say yes here you get support for the Dallas DS1302 RTC chips.
 750
 751	  This driver can also be built as a module. If so, the module
 752	  will be called rtc-ds1302.
 753
 754config RTC_DRV_DS1305
 755	tristate "Dallas/Maxim DS1305/DS1306"
 756	help
 757	  Select this driver to get support for the Dallas/Maxim DS1305
 758	  and DS1306 real time clock chips. These support a trickle
 759	  charger, alarms, and NVRAM in addition to the clock.
 760
 761	  This driver can also be built as a module. If so, the module
 762	  will be called rtc-ds1305.
 763
 764config RTC_DRV_DS1343
 765	select REGMAP_SPI
 766	tristate "Dallas/Maxim DS1343/DS1344"
 767	help
 768	  If you say yes here you get support for the
 769	  Dallas/Maxim DS1343 and DS1344 real time clock chips.
 770	  Support for trickle charger, alarm is provided.
 771
 772	  This driver can also be built as a module. If so, the module
 773	  will be called rtc-ds1343.
 774
 775config RTC_DRV_DS1347
 776	select REGMAP_SPI
 777	tristate "Dallas/Maxim DS1347"
 778	help
 779	  If you say yes here you get support for the
 780	  Dallas/Maxim DS1347 chips.
 781
 782	  This driver only supports the RTC feature, and not other chip
 783	  features such as alarms.
 784
 785	  This driver can also be built as a module. If so, the module
 786	  will be called rtc-ds1347.
 787
 788config RTC_DRV_DS1390
 789	tristate "Dallas/Maxim DS1390/93/94"
 790	help
 791	  If you say yes here you get support for the
 792	  Dallas/Maxim DS1390/93/94 chips.
 793
 794	  This driver supports the RTC feature and trickle charging but not
 795	  other chip features such as alarms.
 796
 797	  This driver can also be built as a module. If so, the module
 798	  will be called rtc-ds1390.
 799
 800config RTC_DRV_MAX6916
 801	tristate "Maxim MAX6916"
 802	help
 803	  If you say yes here you will get support for the
 804	  Maxim MAX6916 SPI RTC chip.
 805
 806	  This driver only supports the RTC feature, and not other chip
 807	  features such as alarms.
 808
 809	  This driver can also be built as a module. If so, the module
 810	  will be called rtc-max6916.
 811
 812config RTC_DRV_R9701
 813	tristate "Epson RTC-9701JE"
 814	help
 815	  If you say yes here you will get support for the
 816	  Epson RTC-9701JE SPI RTC chip.
 817
 818	  This driver can also be built as a module. If so, the module
 819	  will be called rtc-r9701.
 820
 821config RTC_DRV_RX4581
 822	tristate "Epson RX-4581"
 823	help
 824	  If you say yes here you will get support for the Epson RX-4581.
 825
 826	  This driver can also be built as a module. If so the module
 827	  will be called rtc-rx4581.
 828
 829config RTC_DRV_RS5C348
 830	tristate "Ricoh RS5C348A/B"
 831	help
 832	  If you say yes here you get support for the
 833	  Ricoh RS5C348A and RS5C348B RTC chips.
 834
 835	  This driver can also be built as a module. If so, the module
 836	  will be called rtc-rs5c348.
 837
 838config RTC_DRV_MAX6902
 839	tristate "Maxim MAX6902"
 840	help
 841	  If you say yes here you will get support for the
 842	  Maxim MAX6902 SPI RTC chip.
 843
 844	  This driver can also be built as a module. If so, the module
 845	  will be called rtc-max6902.
 846
 847config RTC_DRV_PCF2123
 848	tristate "NXP PCF2123"
 849	select REGMAP_SPI
 850	help
 851	  If you say yes here you get support for the NXP PCF2123
 852	  RTC chip.
 853
 854	  This driver can also be built as a module. If so, the module
 855	  will be called rtc-pcf2123.
 856
 857config RTC_DRV_MCP795
 858	tristate "Microchip MCP795"
 859	help
 860	  If you say yes here you will get support for the Microchip MCP795.
 861
 862	  This driver can also be built as a module. If so the module
 863	  will be called rtc-mcp795.
 864
 865endif # SPI_MASTER
 866
 867#
 868# Helper to resolve issues with configs that have SPI enabled but I2C
 869# modular.  See SND_SOC_I2C_AND_SPI for more information
 870#
 871config RTC_I2C_AND_SPI
 872	tristate
 873	default m if I2C=m
 874	default y if I2C=y
 875	default y if SPI_MASTER=y
 876
 877comment "SPI and I2C RTC drivers"
 878
 879config RTC_DRV_DS3232
 880	tristate "Dallas/Maxim DS3232/DS3234"
 881	depends on RTC_I2C_AND_SPI
 882	select REGMAP_I2C if I2C
 883	select REGMAP_SPI if SPI_MASTER
 884	help
 885	  If you say yes here you get support for Dallas Semiconductor
 886	  DS3232 and DS3234 real-time clock chips. If an interrupt is associated
 887	  with the device, the alarm functionality is supported.
 888
 889	  This driver can also be built as a module.  If so, the module
 890	  will be called rtc-ds3232.
 891
 892config RTC_DRV_DS3232_HWMON
 893	bool "HWMON support for Dallas/Maxim DS3232/DS3234"
 894	depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m)
 895	default y
 896	help
 897	  Say Y here if you want to expose temperature sensor data on
 898	  rtc-ds3232
 899
 900config RTC_DRV_PCF2127
 901	tristate "NXP PCF2127"
 902	depends on RTC_I2C_AND_SPI
 903	select REGMAP_I2C if I2C
 904	select REGMAP_SPI if SPI_MASTER
 905	select WATCHDOG_CORE if WATCHDOG
 906	help
 907	  If you say yes here you get support for the NXP PCF2127/29 RTC
 908	  chips with integrated quartz crystal for industrial applications.
 909	  Both chips also have watchdog timer and tamper switch detection
 910	  features.
 911
 912	  PCF2127 has an additional feature of 512 bytes battery backed
 913	  memory that's accessible using nvmem interface.
 914
 915	  This driver can also be built as a module. If so, the module
 916	  will be called rtc-pcf2127.
 917
 918config RTC_DRV_RV3029C2
 919	tristate "Micro Crystal RV3029/3049"
 920	depends on RTC_I2C_AND_SPI
 921	select REGMAP_I2C if I2C
 922	select REGMAP_SPI if SPI_MASTER
 923	help
 924	  If you say yes here you get support for the Micro Crystal
 925	  RV3029 and RV3049 RTC chips.
 926
 927	  This driver can also be built as a module. If so, the module
 928	  will be called rtc-rv3029c2.
 929
 930config RTC_DRV_RV3029_HWMON
 931	bool "HWMON support for RV3029/3049"
 932	depends on RTC_DRV_RV3029C2 && HWMON
 933	depends on !(RTC_DRV_RV3029C2=y && HWMON=m)
 934	default y
 935	help
 936	  Say Y here if you want to expose temperature sensor data on
 937	  rtc-rv3029.
 938
 939config RTC_DRV_RX6110
 940	tristate "Epson RX-6110"
 941	depends on RTC_I2C_AND_SPI
 942	select REGMAP_SPI if SPI_MASTER
 943	select REGMAP_I2C if I2C
 944	help
 945	  If you say yes here you will get support for the Epson RX-6110.
 946
 947	  This driver can also be built as a module. If so the module
 948	  will be called rtc-rx6110.
 949
 950comment "Platform RTC drivers"
 951
 952# this 'CMOS' RTC driver is arch dependent because it requires
 953# <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
 954# global rtc_lock ... it's not yet just another platform_device.
 955
 956config RTC_DRV_CMOS
 957	tristate "PC-style 'CMOS'"
 958	depends on X86 || ARM || PPC || MIPS || SPARC64
 959	default y if X86
 960	select RTC_MC146818_LIB
 961	help
 962	  Say "yes" here to get direct support for the real time clock
 963	  found in every PC or ACPI-based system, and some other boards.
 964	  Specifically the original MC146818, compatibles like those in
 965	  PC south bridges, the DS12887 or M48T86, some multifunction
 966	  or LPC bus chips, and so on.
 967
 968	  Your system will need to define the platform device used by
 969	  this driver, otherwise it won't be accessible. This means
 970	  you can safely enable this driver if you don't know whether
 971	  or not your board has this kind of hardware.
 972
 973	  This driver can also be built as a module. If so, the module
 974	  will be called rtc-cmos.
 975
 976config RTC_DRV_ALPHA
 977	bool "Alpha PC-style CMOS"
 978	depends on ALPHA
 979	select RTC_MC146818_LIB
 980	default y
 981	help
 982	  Direct support for the real-time clock found on every Alpha
 983	  system, specifically MC146818 compatibles.  If in doubt, say Y.
 
 
 
 984
 985config RTC_DRV_DS1216
 986	tristate "Dallas DS1216"
 987	depends on SNI_RM
 988	help
 989	  If you say yes here you get support for the Dallas DS1216 RTC chips.
 990
 991config RTC_DRV_DS1286
 992	tristate "Dallas DS1286"
 993	depends on HAS_IOMEM
 994	help
 995	  If you say yes here you get support for the Dallas DS1286 RTC chips.
 996
 
 
 
 
 
 
 997config RTC_DRV_DS1511
 998	tristate "Dallas DS1511"
 999	depends on HAS_IOMEM
1000	help
1001	  If you say yes here you get support for the
1002	  Dallas DS1511 timekeeping/watchdog chip.
1003
1004	  This driver can also be built as a module. If so, the module
1005	  will be called rtc-ds1511.
1006
1007config RTC_DRV_DS1553
1008	tristate "Maxim/Dallas DS1553"
1009	depends on HAS_IOMEM
1010	help
1011	  If you say yes here you get support for the
1012	  Maxim/Dallas DS1553 timekeeping chip.
1013
1014	  This driver can also be built as a module. If so, the module
1015	  will be called rtc-ds1553.
1016
1017config RTC_DRV_DS1685_FAMILY
1018	tristate "Dallas/Maxim DS1685 Family"
1019	depends on HAS_IOMEM
1020	help
1021	  If you say yes here you get support for the Dallas/Maxim DS1685
1022	  family of real time chips.  This family includes the DS1685/DS1687,
1023	  DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and
1024	  DS17885/DS17887 chips.
1025
1026	  This driver can also be built as a module. If so, the module
1027	  will be called rtc-ds1685.
1028
1029choice
1030	prompt "Subtype"
1031	depends on RTC_DRV_DS1685_FAMILY
1032	default RTC_DRV_DS1685
1033
1034config RTC_DRV_DS1685
1035	bool "DS1685/DS1687"
1036	help
1037	  This enables support for the Dallas/Maxim DS1685/DS1687 real time
1038	  clock chip.
1039
1040	  This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30)
1041	  systems, as well as EPPC-405-UC modules by electronic system design
1042	  GmbH.
1043
1044config RTC_DRV_DS1689
1045	bool "DS1689/DS1693"
1046	help
1047	  This enables support for the Dallas/Maxim DS1689/DS1693 real time
1048	  clock chip.
1049
1050	  This is an older RTC chip, supplanted by the DS1685/DS1687 above,
1051	  which supports a few minor features such as Vcc, Vbat, and Power
1052	  Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
1053
1054	  It also works for the even older DS1688/DS1691 RTC chips, which are
1055	  virtually the same and carry the same model number.  Both chips
1056	  have 114 bytes of user NVRAM.
1057
1058config RTC_DRV_DS17285
1059	bool "DS17285/DS17287"
1060	help
1061	  This enables support for the Dallas/Maxim DS17285/DS17287 real time
1062	  clock chip.
1063
1064	  This chip features 2kb of extended NV-SRAM.  It may possibly be
1065	  found in some SGI O2 systems (rare).
1066
1067config RTC_DRV_DS17485
1068	bool "DS17485/DS17487"
1069	help
1070	  This enables support for the Dallas/Maxim DS17485/DS17487 real time
1071	  clock chip.
1072
1073	  This chip features 4kb of extended NV-SRAM.
1074
1075config RTC_DRV_DS17885
1076	bool "DS17885/DS17887"
1077	help
1078	  This enables support for the Dallas/Maxim DS17885/DS17887 real time
1079	  clock chip.
1080
1081	  This chip features 8kb of extended NV-SRAM.
1082
1083endchoice
1084
1085config RTC_DRV_DS1742
1086	tristate "Maxim/Dallas DS1742/1743"
1087	depends on HAS_IOMEM
1088	help
1089	  If you say yes here you get support for the
1090	  Maxim/Dallas DS1742/1743 timekeeping chip.
1091
1092	  This driver can also be built as a module. If so, the module
1093	  will be called rtc-ds1742.
1094
1095config RTC_DRV_DS2404
1096	tristate "Maxim/Dallas DS2404"
1097	help
1098	  If you say yes here you get support for the
1099	  Dallas DS2404 RTC chip.
1100
1101	  This driver can also be built as a module. If so, the module
1102	  will be called rtc-ds2404.
1103
1104config RTC_DRV_DA9052
1105	tristate "Dialog DA9052/DA9053 RTC"
1106	depends on PMIC_DA9052
1107	help
1108	  Say y here to support the RTC driver for Dialog Semiconductor
1109	  DA9052-BC and DA9053-AA/Bx PMICs.
1110
1111config RTC_DRV_DA9055
1112	tristate "Dialog Semiconductor DA9055 RTC"
1113	depends on MFD_DA9055
1114	help
1115	  If you say yes here you will get support for the
1116	  RTC of the Dialog DA9055 PMIC.
1117
1118	  This driver can also be built as a module. If so, the module
1119	  will be called rtc-da9055
1120
1121config RTC_DRV_DA9063
1122	tristate "Dialog Semiconductor DA9063/DA9062 RTC"
1123	depends on MFD_DA9063 || MFD_DA9062
1124	help
1125	  If you say yes here you will get support for the RTC subsystem
1126	  for the Dialog Semiconductor PMIC chips DA9063 and DA9062.
1127
1128	  This driver can also be built as a module. If so, the module
1129	  will be called "rtc-da9063".
1130
1131config RTC_DRV_EFI
1132	tristate "EFI RTC"
1133	depends on EFI && !X86
1134	help
1135	  If you say yes here you will get support for the EFI
1136	  Real Time Clock.
1137
1138	  This driver can also be built as a module. If so, the module
1139	  will be called rtc-efi.
1140
1141config RTC_DRV_STK17TA8
1142	tristate "Simtek STK17TA8"
1143	depends on HAS_IOMEM
1144	help
1145	  If you say yes here you get support for the
1146	  Simtek STK17TA8 timekeeping chip.
1147
1148	  This driver can also be built as a module. If so, the module
1149	  will be called rtc-stk17ta8.
1150
1151config RTC_DRV_M48T86
1152	tristate "ST M48T86/Dallas DS12887"
1153	depends on HAS_IOMEM
1154	help
1155	  If you say Y here you will get support for the
1156	  ST M48T86 and Dallas DS12887 RTC chips.
1157
1158	  This driver can also be built as a module. If so, the module
1159	  will be called rtc-m48t86.
1160
1161config RTC_DRV_M48T35
1162	tristate "ST M48T35"
1163	depends on HAS_IOMEM
1164	help
1165	  If you say Y here you will get support for the
1166	  ST M48T35 RTC chip.
1167
1168	  This driver can also be built as a module, if so, the module
1169	  will be called "rtc-m48t35".
1170
1171config RTC_DRV_M48T59
1172	tristate "ST M48T59/M48T08/M48T02"
1173	depends on HAS_IOMEM
1174	help
1175	  If you say Y here you will get support for the
1176	  ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
1177
1178	  These chips are usually found in Sun SPARC and UltraSPARC
1179	  workstations.
1180
1181	  This driver can also be built as a module, if so, the module
1182	  will be called "rtc-m48t59".
1183
1184config RTC_DRV_MSM6242
1185	tristate "Oki MSM6242"
1186	depends on HAS_IOMEM
1187	help
1188	  If you say yes here you get support for the Oki MSM6242
1189	  timekeeping chip. It is used in some Amiga models (e.g. A2000).
1190
1191	  This driver can also be built as a module. If so, the module
1192	  will be called rtc-msm6242.
1193
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1194config RTC_DRV_BQ4802
1195	tristate "TI BQ4802"
1196	depends on HAS_IOMEM
1197	help
1198	  If you say Y here you will get support for the TI
1199	  BQ4802 RTC chip.
1200
1201	  This driver can also be built as a module. If so, the module
1202	  will be called rtc-bq4802.
1203
1204config RTC_DRV_RP5C01
1205	tristate "Ricoh RP5C01"
1206	depends on HAS_IOMEM
1207	help
1208	  If you say yes here you get support for the Ricoh RP5C01
1209	  timekeeping chip. It is used in some Amiga models (e.g. A3000
1210	  and A4000).
1211
1212	  This driver can also be built as a module. If so, the module
1213	  will be called rtc-rp5c01.
1214
1215config RTC_DRV_V3020
1216	tristate "EM Microelectronic V3020"
1217	help
1218	  If you say yes here you will get support for the
1219	  EM Microelectronic v3020 RTC chip.
1220
1221	  This driver can also be built as a module. If so, the module
1222	  will be called rtc-v3020.
1223
1224config RTC_DRV_GAMECUBE
1225	tristate "Nintendo GameCube, Wii and Wii U RTC"
1226	depends on GAMECUBE || WII || COMPILE_TEST
1227	select REGMAP
1228	help
1229	  If you say yes here you will get support for the RTC subsystem
1230	  of the Nintendo GameCube, Wii and Wii U.
1231
1232	  This driver can also be built as a module. If so, the module
1233	  will be called "rtc-gamecube".
1234
1235config RTC_DRV_WM831X
1236	tristate "Wolfson Microelectronics WM831x RTC"
1237	depends on MFD_WM831X
1238	help
1239	  If you say yes here you will get support for the RTC subsystem
1240	  of the Wolfson Microelectronics WM831X series PMICs.
1241
1242	  This driver can also be built as a module. If so, the module
1243	  will be called "rtc-wm831x".
1244
1245config RTC_DRV_WM8350
1246	tristate "Wolfson Microelectronics WM8350 RTC"
1247	depends on MFD_WM8350
1248	help
1249	  If you say yes here you will get support for the RTC subsystem
1250	  of the Wolfson Microelectronics WM8350.
1251
1252	  This driver can also be built as a module. If so, the module
1253	  will be called "rtc-wm8350".
1254
1255config RTC_DRV_SC27XX
1256	tristate "Spreadtrum SC27xx RTC"
1257	depends on MFD_SC27XX_PMIC || COMPILE_TEST
1258	help
1259	  If you say Y here you will get support for the RTC subsystem
1260	  of the Spreadtrum SC27xx series PMICs. The SC27xx series PMICs
1261	  includes the SC2720, SC2721, SC2723, SC2730 and SC2731 chips.
1262
1263	  This driver can also be built as a module. If so, the module
1264	  will be called rtc-sc27xx.
1265
1266config RTC_DRV_SPEAR
1267	tristate "SPEAR ST RTC"
1268	depends on PLAT_SPEAR || COMPILE_TEST
1269	default y
1270	help
1271	 If you say Y here you will get support for the RTC found on
1272	 spear
1273
1274config RTC_DRV_PCF50633
1275	depends on MFD_PCF50633
1276	tristate "NXP PCF50633 RTC"
1277	help
1278	  If you say yes here you get support for the RTC subsystem of the
1279	  NXP PCF50633 used in embedded systems.
1280
 
 
 
 
 
 
 
 
1281config RTC_DRV_AB8500
1282	tristate "ST-Ericsson AB8500 RTC"
1283	depends on AB8500_CORE
1284	select RTC_INTF_DEV
1285	select RTC_INTF_DEV_UIE_EMUL
1286	help
1287	  Select this to enable the ST-Ericsson AB8500 power management IC RTC
1288	  support. This chip contains a battery- and capacitor-backed RTC.
1289
1290config RTC_DRV_OPAL
1291	tristate "IBM OPAL RTC driver"
1292	depends on PPC_POWERNV
1293	default y
1294	help
1295	  If you say yes here you get support for the PowerNV platform RTC
1296	  driver based on OPAL interfaces.
1297
1298	  This driver can also be built as a module. If so, the module
1299	  will be called rtc-opal.
1300
1301config RTC_DRV_OPTEE
1302	tristate "OP-TEE based RTC driver"
1303	depends on OPTEE
1304	help
1305	  Select this to get support for OP-TEE based RTC control on SoCs where
1306	  RTC are not accessible to the normal world (Linux).
1307
1308	  This driver can also be built as a module. If so, the module
1309	  will be called rtc-optee.
1310
1311config RTC_DRV_ZYNQMP
1312	tristate "Xilinx Zynq Ultrascale+ MPSoC RTC"
1313	depends on OF && HAS_IOMEM
1314	help
1315	  If you say yes here you get support for the RTC controller found on
1316	  Xilinx Zynq Ultrascale+ MPSoC.
1317
1318config RTC_DRV_CROS_EC
1319	tristate "Chrome OS EC RTC driver"
1320	depends on CROS_EC
1321	help
1322	  If you say yes here you will get support for the
1323	  Chrome OS Embedded Controller's RTC.
1324
1325	  This driver can also be built as a module. If so, the module
1326	  will be called rtc-cros-ec.
1327
1328config RTC_DRV_NTXEC
1329	tristate "Netronix embedded controller RTC"
1330	depends on MFD_NTXEC
1331	help
1332	  Say yes here if you want to support the RTC functionality of the
1333	  embedded controller found in certain e-book readers designed by the
1334	  original design manufacturer Netronix.
1335
1336comment "on-CPU RTC drivers"
1337
1338config RTC_DRV_ASM9260
1339	tristate "Alphascale asm9260 RTC"
1340	depends on MACH_ASM9260 || COMPILE_TEST
1341	help
1342	  If you say yes here you get support for the RTC on the
1343	  Alphascale asm9260 SoC.
1344
1345	  This driver can also be built as a module. If so, the module
1346	  will be called rtc-asm9260.
1347
1348config RTC_DRV_DIGICOLOR
1349	tristate "Conexant Digicolor RTC"
1350	depends on ARCH_DIGICOLOR || COMPILE_TEST
1351	help
1352	  If you say yes here you get support for the RTC on Conexant
1353	  Digicolor platforms. This currently includes the CX92755 SoC.
1354
1355	  This driver can also be built as a module. If so, the module
1356	  will be called rtc-digicolor.
1357
1358config RTC_DRV_IMXDI
1359	tristate "Freescale IMX DryIce Real Time Clock"
1360	depends on ARCH_MXC
1361	depends on OF
1362	help
1363	   Support for Freescale IMX DryIce RTC
1364
1365	   This driver can also be built as a module, if so, the module
1366	   will be called "rtc-imxdi".
1367
1368config RTC_DRV_FSL_FTM_ALARM
1369	tristate "Freescale FlexTimer alarm timer"
1370	depends on ARCH_LAYERSCAPE || SOC_LS1021A || COMPILE_TEST
1371	help
1372	   For the FlexTimer in LS1012A, LS1021A, LS1028A, LS1043A, LS1046A,
1373	   LS1088A, LS208xA, we can use FTM as the wakeup source.
1374
1375	   Say y here to enable FTM alarm support. The FTM alarm provides
1376	   alarm functions for wakeup system from deep sleep.
1377
1378	   This driver can also be built as a module, if so, the module
1379	   will be called "rtc-fsl-ftm-alarm".
1380
1381config RTC_DRV_MESON
1382	tristate "Amlogic Meson RTC"
1383	depends on (ARM && ARCH_MESON) || COMPILE_TEST
1384	select REGMAP_MMIO
1385	help
1386	   Support for the RTC block on the Amlogic Meson6, Meson8, Meson8b
1387	   and Meson8m2 SoCs.
1388
1389	   This driver can also be built as a module, if so, the module
1390	   will be called "rtc-meson".
1391
1392config RTC_DRV_MESON_VRTC
1393	tristate "Amlogic Meson Virtual RTC"
1394	depends on ARCH_MESON || COMPILE_TEST
1395	default m if ARCH_MESON
1396	help
1397	  If you say yes here you will get support for the
1398	  Virtual RTC of Amlogic SoCs.
1399
1400	  This driver can also be built as a module. If so, the module
1401	  will be called rtc-meson-vrtc.
1402
1403config RTC_DRV_OMAP
1404	tristate "TI OMAP Real Time Clock"
1405	depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST
1406	depends on OF
1407	depends on PINCTRL
1408	select GENERIC_PINCONF
1409	help
1410	  Say "yes" here to support the on chip real time clock
1411	  present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
 
1412
1413	  This driver can also be built as a module, if so, module
1414	  will be called rtc-omap.
 
 
 
 
1415
1416config RTC_DRV_S3C
1417	tristate "Samsung S3C series SoC RTC"
1418	depends on ARCH_EXYNOS || ARCH_S3C64XX || ARCH_S3C24XX || ARCH_S5PV210 || \
1419		   COMPILE_TEST
1420	help
1421	  RTC (Realtime Clock) driver for the clock inbuilt into the
1422	  Samsung S3C24XX series of SoCs. This can provide periodic
1423	  interrupt rates from 1Hz to 64Hz for user programs, and
1424	  wakeup from Alarm.
1425
1426	  The driver currently supports the common features on all the
1427	  S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
1428	  and S3C2442.
1429
1430	  This driver can also be build as a module. If so, the module
1431	  will be called rtc-s3c.
1432
1433config RTC_DRV_EP93XX
1434	tristate "Cirrus Logic EP93XX"
1435	depends on ARCH_EP93XX || COMPILE_TEST
1436	help
1437	  If you say yes here you get support for the
1438	  RTC embedded in the Cirrus Logic EP93XX processors.
1439
1440	  This driver can also be built as a module. If so, the module
1441	  will be called rtc-ep93xx.
1442
1443config RTC_DRV_SA1100
1444	tristate "SA11x0/PXA2xx/PXA910"
1445	depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
1446	help
1447	  If you say Y here you will get access to the real time clock
1448	  built into your SA11x0 or PXA2xx CPU.
1449
1450	  To compile this driver as a module, choose M here: the
1451	  module will be called rtc-sa1100.
1452
1453config RTC_DRV_SH
1454	tristate "SuperH On-Chip RTC"
1455	depends on SUPERH || ARCH_RENESAS
1456	help
1457	  Say Y here to enable support for the on-chip RTC found in
1458	  most SuperH processors. This RTC is also found in RZ/A SoCs.
1459
1460	  To compile this driver as a module, choose M here: the
1461	  module will be called rtc-sh.
1462
1463config RTC_DRV_SUNPLUS
1464	tristate "Sunplus SP7021 RTC"
1465	depends on SOC_SP7021
1466	help
1467	  Say 'yes' to get support for the real-time clock present in
1468	  Sunplus SP7021 - a SoC for industrial applications. It provides
1469	  RTC status check, timer/alarm functionalities, user data
1470	  reservation with the battery over 2.5V, RTC power status check
1471	  and battery charge.
1472
1473	  This driver can also be built as a module. If so, the module
1474	  will be called rtc-sunplus.
1475
1476config RTC_DRV_PL030
1477	tristate "ARM AMBA PL030 RTC"
1478	depends on ARM_AMBA
1479	help
1480	  If you say Y here you will get access to ARM AMBA
1481	  PrimeCell PL030 RTC found on certain ARM SOCs.
1482
1483	  To compile this driver as a module, choose M here: the
1484	  module will be called rtc-pl030.
1485
1486config RTC_DRV_PL031
1487	tristate "ARM AMBA PL031 RTC"
1488	depends on ARM_AMBA
1489	help
1490	  If you say Y here you will get access to ARM AMBA
1491	  PrimeCell PL031 RTC found on certain ARM SOCs.
1492
1493	  To compile this driver as a module, choose M here: the
1494	  module will be called rtc-pl031.
1495
 
 
 
 
 
 
 
1496config RTC_DRV_AT91RM9200
1497	tristate "AT91RM9200 or some AT91SAM9 RTC"
1498	depends on ARCH_AT91 || COMPILE_TEST
1499	depends on OF
1500	help
1501	  Driver for the internal RTC (Realtime Clock) module found on
1502	  Atmel AT91RM9200's and some  AT91SAM9 chips. On AT91SAM9 chips
1503	  this is powered by the backup power supply.
1504
1505config RTC_DRV_AT91SAM9
1506	tristate "AT91SAM9 RTT as RTC"
1507	depends on ARCH_AT91 || COMPILE_TEST
1508	depends on OF && HAS_IOMEM
1509	select MFD_SYSCON
1510	help
1511	  Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which
1512	  can be used as an RTC thanks to the backup power supply (e.g. a
1513	  small coin cell battery) which keeps this block and the GPBR
1514	  (General Purpose Backup Registers) block powered when the device
1515	  is shutdown.
1516	  Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd
1517	  probably want to use the real RTC block instead of the "RTT as an
1518	  RTC" driver.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1519
1520config RTC_DRV_AU1XXX
1521	tristate "Au1xxx Counter0 RTC support"
1522	depends on MIPS_ALCHEMY
1523	help
1524	  This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
1525	  counter) to be used as a RTC.
1526
1527	  This driver can also be built as a module. If so, the module
1528	  will be called rtc-au1xxx.
1529
 
 
 
 
 
 
 
 
 
 
1530config RTC_DRV_RS5C313
1531	tristate "Ricoh RS5C313"
1532	depends on SH_LANDISK
1533	help
1534	  If you say yes here you get support for the Ricoh RS5C313 RTC chips.
1535
1536config RTC_DRV_RZN1
1537	tristate "Renesas RZ/N1 RTC"
1538	depends on ARCH_RZN1 || COMPILE_TEST
1539	depends on OF && HAS_IOMEM
1540	help
1541	  If you say yes here you get support for the Renesas RZ/N1 RTC.
1542
1543config RTC_DRV_GENERIC
1544	tristate "Generic RTC support"
1545	# Please consider writing a new RTC driver instead of using the generic
1546	# RTC abstraction
1547	depends on PARISC || M68K || PPC || SUPERH || COMPILE_TEST
1548	help
1549	  Say Y or M here to enable RTC support on systems using the generic
1550	  RTC abstraction. If you do not know what you are doing, you should
1551	  just say Y.
1552
1553config RTC_DRV_PXA
1554	tristate "PXA27x/PXA3xx"
1555	depends on ARCH_PXA
1556	select RTC_DRV_SA1100
1557	help
1558	 If you say Y here you will get access to the real time clock
1559	 built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs
1560	 consisting of an SA1100 compatible RTC and the extended PXA RTC.
1561
1562	 This RTC driver uses PXA RTC registers available since pxa27x
1563	 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
1564
1565config RTC_DRV_VT8500
1566	tristate "VIA/WonderMedia 85xx SoC RTC"
1567	depends on ARCH_VT8500 || COMPILE_TEST
1568	help
1569	  If you say Y here you will get access to the real time clock
1570	  built into your VIA VT8500 SoC or its relatives.
1571
1572
1573config RTC_DRV_SUN4V
1574	bool "SUN4V Hypervisor RTC"
1575	depends on SPARC64
1576	help
1577	  If you say Y here you will get support for the Hypervisor
1578	  based RTC on SUN4V systems.
1579
1580config RTC_DRV_SUN6I
1581	bool "Allwinner A31 RTC"
1582	default MACH_SUN6I || MACH_SUN8I
1583	depends on COMMON_CLK
1584	depends on ARCH_SUNXI || COMPILE_TEST
1585	help
1586	  If you say Y here you will get support for the RTC found in
1587	  some Allwinner SoCs like the A31 or the A64.
1588
1589config RTC_DRV_SUNXI
1590	tristate "Allwinner sun4i/sun7i RTC"
1591	depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST
1592	help
1593	  If you say Y here you will get support for the RTC found on
1594	  Allwinner A10/A20.
1595
1596config RTC_DRV_STARFIRE
1597	bool "Starfire RTC"
1598	depends on SPARC64
1599	help
1600	  If you say Y here you will get support for the RTC found on
1601	  Starfire systems.
1602
 
 
 
 
 
 
 
1603config RTC_DRV_MV
1604	tristate "Marvell SoC RTC"
1605	depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST
1606	help
1607	  If you say yes here you will get support for the in-chip RTC
1608	  that can be found in some of Marvell's SoC devices, such as
1609	  the Kirkwood 88F6281 and 88F6192.
1610
1611	  This driver can also be built as a module. If so, the module
1612	  will be called rtc-mv.
1613
1614config RTC_DRV_ARMADA38X
1615	tristate "Armada 38x Marvell SoC RTC"
1616	depends on ARCH_MVEBU || COMPILE_TEST
1617	depends on OF
1618	help
1619	  If you say yes here you will get support for the in-chip RTC
1620	  that can be found in the Armada 38x Marvell's SoC device
1621
1622	  This driver can also be built as a module. If so, the module
1623	  will be called armada38x-rtc.
1624
1625config RTC_DRV_CADENCE
1626	tristate "Cadence RTC driver"
1627	depends on OF && HAS_IOMEM
1628	help
1629	  If you say Y here you will get access to Cadence RTC IP
1630	  found on certain SOCs.
1631
1632	  To compile this driver as a module, choose M here: the
1633	  module will be called rtc-cadence.
1634
1635config RTC_DRV_FTRTC010
1636	tristate "Faraday Technology FTRTC010 RTC"
1637	depends on HAS_IOMEM
1638	default ARCH_GEMINI
1639	help
1640	  If you say Y here you will get support for the
1641	  Faraday Technolog FTRTC010 found on e.g. Gemini SoC's.
1642
1643	  This driver can also be built as a module. If so, the module
1644	  will be called rtc-ftrtc010.
1645
1646config RTC_DRV_PS3
1647	tristate "PS3 RTC"
1648	depends on PPC_PS3
1649	help
1650	  If you say yes here you will get support for the RTC on PS3.
1651
1652	  This driver can also be built as a module. If so, the module
1653	  will be called rtc-ps3.
1654
 
 
 
 
 
 
 
 
 
 
 
 
1655config RTC_DRV_STMP
1656	tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
1657	depends on ARCH_MXS || COMPILE_TEST
1658	select STMP_DEVICE
1659	help
1660	  If you say yes here you will get support for the onboard
1661	  STMP3xxx/i.MX23/i.MX28 RTC.
1662
1663	  This driver can also be built as a module. If so, the module
1664	  will be called rtc-stmp3xxx.
1665
1666config RTC_DRV_PCAP
1667	tristate "PCAP RTC"
1668	depends on EZX_PCAP
1669	help
1670	  If you say Y here you will get support for the RTC found on
1671	  the PCAP2 ASIC used on some Motorola phones.
1672
1673config RTC_DRV_MC13XXX
1674	depends on MFD_MC13XXX
1675	tristate "Freescale MC13xxx RTC"
1676	help
1677	  This enables support for the RTCs found on Freescale's PMICs
1678	  MC13783 and MC13892.
1679
1680config RTC_DRV_MPC5121
1681	tristate "Freescale MPC5121 built-in RTC"
1682	depends on PPC_MPC512x || PPC_MPC52xx
1683	help
1684	  If you say yes here you will get support for the
1685	  built-in RTC on MPC5121 or on MPC5200.
1686
1687	  This driver can also be built as a module. If so, the module
1688	  will be called rtc-mpc5121.
1689
1690config RTC_DRV_JZ4740
1691	tristate "Ingenic JZ4740 SoC"
1692	depends on MIPS || COMPILE_TEST
1693	depends on OF
1694	help
1695	  If you say yes here you get support for the Ingenic JZ47xx SoCs RTC
1696	  controllers.
1697
1698	  This driver can also be built as a module. If so, the module
1699	  will be called rtc-jz4740.
1700
1701config RTC_DRV_LPC24XX
1702	tristate "NXP RTC for LPC178x/18xx/408x/43xx"
1703	depends on ARCH_LPC18XX || COMPILE_TEST
1704	depends on OF && HAS_IOMEM
1705	help
1706	  This enables support for the NXP RTC found which can be found on
1707	  NXP LPC178x/18xx/408x/43xx devices.
1708
1709	  If you have one of the devices above enable this driver to use
1710	  the hardware RTC. This driver can also be built as a module. If
1711	  so, the module will be called rtc-lpc24xx.
1712
1713config RTC_DRV_LPC32XX
1714	depends on ARCH_LPC32XX || COMPILE_TEST
1715	tristate "NXP LPC32XX RTC"
1716	help
1717	  This enables support for the NXP RTC in the LPC32XX
1718
1719	  This driver can also be built as a module. If so, the module
1720	  will be called rtc-lpc32xx.
1721
1722config RTC_DRV_PM8XXX
1723	tristate "Qualcomm PMIC8XXX RTC"
1724	depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST
1725	help
1726	  If you say yes here you get support for the
1727	  Qualcomm PMIC8XXX RTC.
1728
1729	  To compile this driver as a module, choose M here: the
1730	  module will be called rtc-pm8xxx.
1731
1732config RTC_DRV_TEGRA
1733	tristate "NVIDIA Tegra Internal RTC driver"
1734	depends on ARCH_TEGRA || COMPILE_TEST
1735	help
1736	  If you say yes here you get support for the
1737	  Tegra 200 series internal RTC module.
1738
1739	  This drive can also be built as a module. If so, the module
1740	  will be called rtc-tegra.
1741
1742config RTC_DRV_LOONGSON1
1743	tristate "loongson1 RTC support"
1744	depends on MACH_LOONGSON32
1745	help
1746	  This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1747	  counter) to be used as a RTC.
1748
1749	  This driver can also be built as a module. If so, the module
1750	  will be called rtc-ls1x.
1751
1752config RTC_DRV_MXC
1753	tristate "Freescale MXC Real Time Clock"
1754	depends on ARCH_MXC || COMPILE_TEST
1755	depends on HAS_IOMEM
1756	depends on OF
1757	help
1758	   If you say yes here you get support for the Freescale MXC
1759	   RTC module.
1760
1761	   This driver can also be built as a module, if so, the module
1762	   will be called "rtc-mxc".
1763
1764config RTC_DRV_MXC_V2
1765	tristate "Freescale MXC Real Time Clock for i.MX53"
1766	depends on ARCH_MXC || COMPILE_TEST
1767	depends on HAS_IOMEM
1768	depends on OF
1769	help
1770	   If you say yes here you get support for the Freescale MXC
1771	   SRTC module in i.MX53 processor.
1772
1773	   This driver can also be built as a module, if so, the module
1774	   will be called "rtc-mxc_v2".
1775
1776config RTC_DRV_SNVS
1777	tristate "Freescale SNVS RTC support"
1778	select REGMAP_MMIO
1779	depends on ARCH_MXC || COMPILE_TEST
1780	depends on HAS_IOMEM
1781	depends on OF
1782	help
1783	   If you say yes here you get support for the Freescale SNVS
1784	   Low Power (LP) RTC module.
1785
1786	   This driver can also be built as a module, if so, the module
1787	   will be called "rtc-snvs".
1788
1789config RTC_DRV_IMX_SC
1790	depends on IMX_SCU
1791	depends on HAVE_ARM_SMCCC
1792	tristate "NXP i.MX System Controller RTC support"
1793	help
1794	   If you say yes here you get support for the NXP i.MX System
1795	   Controller RTC module.
1796
1797config RTC_DRV_ST_LPC
1798	tristate "STMicroelectronics LPC RTC"
1799	depends on ARCH_STI
1800	depends on OF
1801	help
1802	  Say Y here to include STMicroelectronics Low Power Controller
1803	  (LPC) based RTC support.
1804
1805	  To compile this driver as a module, choose M here: the
1806	  module will be called rtc-st-lpc.
1807
1808config RTC_DRV_MOXART
1809	tristate "MOXA ART RTC"
1810	depends on ARCH_MOXART || COMPILE_TEST
1811	help
1812	   If you say yes here you get support for the MOXA ART
1813	   RTC module.
1814
1815	   This driver can also be built as a module. If so, the module
1816	   will be called rtc-moxart
1817
1818config RTC_DRV_MT2712
1819	tristate "MediaTek MT2712 SoC based RTC"
1820	depends on ARCH_MEDIATEK || COMPILE_TEST
1821	help
1822	  This enables support for the real time clock built in the MediaTek
1823	  SoCs for MT2712.
1824
1825	  This drive can also be built as a module. If so, the module
1826	  will be called rtc-mt2712.
1827
1828config RTC_DRV_MT6397
1829	tristate "MediaTek PMIC based RTC"
1830	depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN)
1831	help
1832	  This selects the MediaTek(R) RTC driver. RTC is part of MediaTek
1833	  MT6397 PMIC. You should enable MT6397 PMIC MFD before select
1834	  MediaTek(R) RTC driver.
1835
1836	  If you want to use MediaTek(R) RTC interface, select Y or M here.
1837
1838config RTC_DRV_MT7622
1839	tristate "MediaTek SoC based RTC"
1840	depends on ARCH_MEDIATEK || COMPILE_TEST
1841	help
1842	  This enables support for the real time clock built in the MediaTek
1843	  SoCs.
1844
1845	  This drive can also be built as a module. If so, the module
1846	  will be called rtc-mt7622.
1847
1848config RTC_DRV_XGENE
1849	tristate "APM X-Gene RTC"
1850	depends on HAS_IOMEM
1851	depends on ARCH_XGENE || COMPILE_TEST
1852	help
1853	  If you say yes here you get support for the APM X-Gene SoC real time
1854	  clock.
1855
1856	  This driver can also be built as a module, if so, the module
1857	  will be called "rtc-xgene".
1858
1859config RTC_DRV_PIC32
1860	tristate "Microchip PIC32 RTC"
1861	depends on MACH_PIC32
1862	default y
1863	help
1864	   If you say yes here you get support for the PIC32 RTC module.
1865
1866	   This driver can also be built as a module. If so, the module
1867	   will be called rtc-pic32
1868
1869config RTC_DRV_R7301
1870	tristate "EPSON TOYOCOM RTC-7301SF/DG"
1871	select REGMAP_MMIO
1872	depends on OF && HAS_IOMEM
1873	help
1874	   If you say yes here you get support for the EPSON TOYOCOM
1875	   RTC-7301SF/DG chips.
1876
1877	   This driver can also be built as a module. If so, the module
1878	   will be called rtc-r7301.
1879
1880config RTC_DRV_STM32
1881	tristate "STM32 RTC"
1882	select REGMAP_MMIO
1883	depends on ARCH_STM32 || COMPILE_TEST
1884	help
1885	   If you say yes here you get support for the STM32 On-Chip
1886	   Real Time Clock.
1887
1888	   This driver can also be built as a module, if so, the module
1889	   will be called "rtc-stm32".
1890
1891config RTC_DRV_CPCAP
1892	depends on MFD_CPCAP
1893	tristate "Motorola CPCAP RTC"
1894	help
1895	   Say y here for CPCAP rtc found on some Motorola phones
1896	   and tablets such as Droid 4.
1897
1898config RTC_DRV_RTD119X
1899	bool "Realtek RTD129x RTC"
1900	depends on ARCH_REALTEK || COMPILE_TEST
1901	default ARCH_REALTEK
1902	help
1903	  If you say yes here, you get support for the RTD1295 SoC
1904	  Real Time Clock.
1905
1906config RTC_DRV_ASPEED
1907	tristate "ASPEED RTC"
1908	depends on OF
1909	depends on ARCH_ASPEED || COMPILE_TEST
1910	help
1911	  If you say yes here you get support for the ASPEED BMC SoC real time
1912	  clocks.
1913
1914	  This driver can also be built as a module, if so, the module
1915	  will be called "rtc-aspeed".
1916
1917config RTC_DRV_TI_K3
1918	tristate "TI K3 RTC"
1919	depends on ARCH_K3 || COMPILE_TEST
1920	select REGMAP_MMIO
1921	help
1922	  If you say yes here you get support for the Texas Instruments's
1923	  Real Time Clock for K3 architecture.
1924
1925	  This driver can also be built as a module, if so, the module
1926	  will be called "rtc-ti-k3".
1927
1928comment "HID Sensor RTC drivers"
1929
1930config RTC_DRV_HID_SENSOR_TIME
1931	tristate "HID Sensor Time"
1932	depends on USB_HID
1933	depends on HID_SENSOR_HUB && IIO
1934	select HID_SENSOR_IIO_COMMON
1935	help
1936	  Say yes here to build support for the HID Sensors of type Time.
1937	  This drivers makes such sensors available as RTCs.
1938
1939	  If this driver is compiled as a module, it will be named
1940	  rtc-hid-sensor-time.
1941
1942config RTC_DRV_GOLDFISH
1943	tristate "Goldfish Real Time Clock"
1944	depends on HAS_IOMEM
1945	help
1946	  Say yes to enable RTC driver for the Goldfish based virtual platform.
1947
1948	  Goldfish is a code name for the virtual platform developed by Google
1949	  for Android emulation.
1950
1951config RTC_DRV_WILCO_EC
1952	tristate "Wilco EC RTC"
1953	depends on WILCO_EC
1954	default m
1955	help
1956	  If you say yes here, you get read/write support for the Real Time
1957	  Clock on the Wilco Embedded Controller (Wilco is a kind of Chromebook)
1958
1959	  This can also be built as a module. If so, the module will
1960	  be named "rtc_wilco_ec".
1961
1962config RTC_DRV_MSC313
1963	tristate "MStar MSC313 RTC"
1964        depends on ARCH_MSTARV7 || COMPILE_TEST
1965	help
1966	  If you say yes here you get support for the Mstar MSC313e On-Chip
1967	  Real Time Clock.
1968
1969	  This driver can also be built as a module, if so, the module
1970	  will be called "rtc-msc313".
1971
1972config RTC_DRV_POLARFIRE_SOC
1973	tristate "Microchip PolarFire SoC built-in RTC"
1974	depends on SOC_MICROCHIP_POLARFIRE
1975	help
1976	  If you say yes here you will get support for the
1977	  built-in RTC on Polarfire SoC.
1978
1979	  This driver can also be built as a module, if so, the module
1980	  will be called "rtc-mpfs".
1981
1982endif # RTC_CLASS