1# 2# RTC class/drivers configuration 3# 4 5config RTC_LIB 6 bool 7 8config RTC_MC146818_LIB 9 bool 10 select RTC_LIB 11 12menuconfig RTC_CLASS 13 bool "Real Time Clock" 14 default n 15 depends on !S390 && !UML 16 select RTC_LIB 17 help 18 Generic RTC class support. If you say yes here, you will 19 be allowed to plug one or more RTCs to your system. You will 20 probably want to enable one or more of the interfaces below. 21 22if RTC_CLASS 23 24config RTC_HCTOSYS 25 bool "Set system time from RTC on startup and resume" 26 default y 27 help 28 If you say yes here, the system time (wall clock) will be set using 29 the value read from a specified RTC device. This is useful to avoid 30 unnecessary fsck runs at boot time, and to network better. 31 32config RTC_HCTOSYS_DEVICE 33 string "RTC used to set the system time" 34 depends on RTC_HCTOSYS 35 default "rtc0" 36 help 37 The RTC device that will be used to (re)initialize the system 38 clock, usually rtc0. Initialization is done when the system 39 starts up, and when it resumes from a low power state. This 40 device should record time in UTC, since the kernel won't do 41 timezone correction. 42 43 The driver for this RTC device must be loaded before late_initcall 44 functions run, so it must usually be statically linked. 45 46 This clock should be battery-backed, so that it reads the correct 47 time when the system boots from a power-off state. Otherwise, your 48 system will need an external clock source (like an NTP server). 49 50 If the clock you specify here is not battery backed, it may still 51 be useful to reinitialize system time when resuming from system 52 sleep states. Do not specify an RTC here unless it stays powered 53 during all this system's supported sleep states. 54 55config RTC_SYSTOHC 56 bool "Set the RTC time based on NTP synchronization" 57 default y 58 help 59 If you say yes here, the system time (wall clock) will be stored 60 in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11 61 minutes if userspace reports synchronized NTP status. 62 63config RTC_SYSTOHC_DEVICE 64 string "RTC used to synchronize NTP adjustment" 65 depends on RTC_SYSTOHC 66 default RTC_HCTOSYS_DEVICE if RTC_HCTOSYS 67 default "rtc0" 68 help 69 The RTC device used for NTP synchronization. The main difference 70 between RTC_HCTOSYS_DEVICE and RTC_SYSTOHC_DEVICE is that this 71 one can sleep when setting time, because it runs in the workqueue 72 context. 73 74config RTC_DEBUG 75 bool "RTC debug support" 76 help 77 Say yes here to enable debugging support in the RTC framework 78 and individual RTC drivers. 79 80config RTC_NVMEM 81 bool "RTC non volatile storage support" 82 select NVMEM 83 default RTC_CLASS 84 help 85 Say yes here to add support for the non volatile (often battery 86 backed) storage present on RTCs. 87 88comment "RTC interfaces" 89 90config RTC_INTF_SYSFS 91 bool "/sys/class/rtc/rtcN (sysfs)" 92 depends on SYSFS 93 default RTC_CLASS 94 help 95 Say yes here if you want to use your RTCs using sysfs interfaces, 96 /sys/class/rtc/rtc0 through /sys/.../rtcN. 97 98 If unsure, say Y. 99 100config RTC_INTF_PROC 101 bool "/proc/driver/rtc (procfs for rtcN)" 102 depends on PROC_FS 103 default RTC_CLASS 104 help 105 Say yes here if you want to use your system clock RTC through 106 the proc interface, /proc/driver/rtc. 107 Other RTCs will not be available through that API. 108 If there is no RTC for the system clock, then the first RTC(rtc0) 109 is used by default. 110 111 If unsure, say Y. 112 113config RTC_INTF_DEV 114 bool "/dev/rtcN (character devices)" 115 default RTC_CLASS 116 help 117 Say yes here if you want to use your RTCs using the /dev 118 interfaces, which "udev" sets up as /dev/rtc0 through 119 /dev/rtcN. 120 121 You may want to set up a symbolic link so one of these 122 can be accessed as /dev/rtc, which is a name 123 expected by "hwclock" and some other programs. Recent 124 versions of "udev" are known to set up the symlink for you. 125 126 If unsure, say Y. 127 128config RTC_INTF_DEV_UIE_EMUL 129 bool "RTC UIE emulation on dev interface" 130 depends on RTC_INTF_DEV 131 help 132 Provides an emulation for RTC_UIE if the underlying rtc chip 133 driver does not expose RTC_UIE ioctls. Those requests generate 134 once-per-second update interrupts, used for synchronization. 135 136 The emulation code will read the time from the hardware 137 clock several times per second, please enable this option 138 only if you know that you really need it. 139 140config RTC_DRV_TEST 141 tristate "Test driver/device" 142 help 143 If you say yes here you get support for the 144 RTC test driver. It's a software RTC which can be 145 used to test the RTC subsystem APIs. It gets 146 the time from the system clock. 147 You want this driver only if you are doing development 148 on the RTC subsystem. Please read the source code 149 for further details. 150 151 This driver can also be built as a module. If so, the module 152 will be called rtc-test. 153 154comment "I2C RTC drivers" 155 156if I2C 157 158config RTC_DRV_88PM860X 159 tristate "Marvell 88PM860x" 160 depends on MFD_88PM860X 161 help 162 If you say yes here you get support for RTC function in Marvell 163 88PM860x chips. 164 165 This driver can also be built as a module. If so, the module 166 will be called rtc-88pm860x. 167 168config RTC_DRV_88PM80X 169 tristate "Marvell 88PM80x" 170 depends on MFD_88PM800 171 help 172 If you say yes here you get support for RTC function in Marvell 173 88PM80x chips. 174 175 This driver can also be built as a module. If so, the module 176 will be called rtc-88pm80x. 177 178config RTC_DRV_ABB5ZES3 179 select REGMAP_I2C 180 tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3" 181 help 182 If you say yes here you get support for the Abracon 183 AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip. 184 185 This driver can also be built as a module. If so, the module 186 will be called rtc-ab-b5ze-s3. 187 188config RTC_DRV_ABX80X 189 tristate "Abracon ABx80x" 190 help 191 If you say yes here you get support for Abracon AB080X and AB180X 192 families of ultra-low-power battery- and capacitor-backed real-time 193 clock chips. 194 195 This driver can also be built as a module. If so, the module 196 will be called rtc-abx80x. 197 198config RTC_DRV_AC100 199 tristate "X-Powers AC100" 200 depends on MFD_AC100 201 help 202 If you say yes here you get support for the real-time clock found 203 in X-Powers AC100 family peripheral ICs. 204 205 This driver can also be built as a module. If so, the module 206 will be called rtc-ac100. 207 208config RTC_DRV_BRCMSTB 209 tristate "Broadcom STB wake-timer" 210 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 211 default ARCH_BRCMSTB || BMIPS_GENERIC 212 help 213 If you say yes here you get support for the wake-timer found on 214 Broadcom STB SoCs (BCM7xxx). 215 216 This driver can also be built as a module. If so, the module will 217 be called rtc-brcmstb-waketimer. 218 219config RTC_DRV_AS3722 220 tristate "ams AS3722 RTC driver" 221 depends on MFD_AS3722 222 help 223 If you say yes here you get support for the RTC of ams AS3722 PMIC 224 chips. 225 226 This driver can also be built as a module. If so, the module 227 will be called rtc-as3722. 228 229config RTC_DRV_DS1307 230 tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057" 231 help 232 If you say yes here you get support for various compatible RTC 233 chips (often with battery backup) connected with I2C. This driver 234 should handle DS1307, DS1337, DS1338, DS1339, DS1340, DS1341, 235 ST M41T00, EPSON RX-8025, Intersil ISL12057 and probably other chips. 236 In some cases the RTC must already have been initialized (by 237 manufacturing or a bootloader). 238 239 The first seven registers on these chips hold an RTC, and other 240 registers may add features such as NVRAM, a trickle charger for 241 the RTC/NVRAM backup power, and alarms. NVRAM is visible in 242 sysfs, but other chip features may not be available. 243 244 This driver can also be built as a module. If so, the module 245 will be called rtc-ds1307. 246 247config RTC_DRV_DS1307_CENTURY 248 bool "Century bit support for rtc-ds1307" 249 depends on RTC_DRV_DS1307 250 default n 251 help 252 The DS1307 driver suffered from a bug where it was enabling the 253 century bit inconditionnally but never used it when reading the time. 254 It made the driver unable to support dates beyond 2099. 255 Setting this option will add proper support for the century bit but if 256 the time was previously set using a kernel predating this option, 257 reading the date will return a date in the next century. 258 To solve that, you could boot a kernel without this option set, set 259 the RTC date and then boot a kernel with this option set. 260 261config RTC_DRV_DS1374 262 tristate "Dallas/Maxim DS1374" 263 help 264 If you say yes here you get support for Dallas Semiconductor 265 DS1374 real-time clock chips. If an interrupt is associated 266 with the device, the alarm functionality is supported. 267 268 This driver can also be built as a module. If so, the module 269 will be called rtc-ds1374. 270 271config RTC_DRV_DS1374_WDT 272 bool "Dallas/Maxim DS1374 watchdog timer" 273 depends on RTC_DRV_DS1374 274 help 275 If you say Y here you will get support for the 276 watchdog timer in the Dallas Semiconductor DS1374 277 real-time clock chips. 278 279config RTC_DRV_DS1672 280 tristate "Dallas/Maxim DS1672" 281 help 282 If you say yes here you get support for the 283 Dallas/Maxim DS1672 timekeeping chip. 284 285 This driver can also be built as a module. If so, the module 286 will be called rtc-ds1672. 287 288config RTC_DRV_HYM8563 289 tristate "Haoyu Microelectronics HYM8563" 290 depends on OF 291 help 292 Say Y to enable support for the HYM8563 I2C RTC chip. Apart 293 from the usual rtc functions it provides a clock output of 294 up to 32kHz. 295 296 This driver can also be built as a module. If so, the module 297 will be called rtc-hym8563. 298 299config RTC_DRV_LP8788 300 tristate "TI LP8788 RTC driver" 301 depends on MFD_LP8788 302 help 303 Say Y to enable support for the LP8788 RTC/ALARM driver. 304 305config RTC_DRV_MAX6900 306 tristate "Maxim MAX6900" 307 help 308 If you say yes here you will get support for the 309 Maxim MAX6900 I2C RTC chip. 310 311 This driver can also be built as a module. If so, the module 312 will be called rtc-max6900. 313 314config RTC_DRV_MAX8907 315 tristate "Maxim MAX8907" 316 depends on MFD_MAX8907 || COMPILE_TEST 317 help 318 If you say yes here you will get support for the 319 RTC of Maxim MAX8907 PMIC. 320 321 This driver can also be built as a module. If so, the module 322 will be called rtc-max8907. 323 324config RTC_DRV_MAX8925 325 tristate "Maxim MAX8925" 326 depends on MFD_MAX8925 327 help 328 If you say yes here you will get support for the 329 RTC of Maxim MAX8925 PMIC. 330 331 This driver can also be built as a module. If so, the module 332 will be called rtc-max8925. 333 334config RTC_DRV_MAX8998 335 tristate "Maxim MAX8998" 336 depends on MFD_MAX8998 337 help 338 If you say yes here you will get support for the 339 RTC of Maxim MAX8998 PMIC. 340 341 This driver can also be built as a module. If so, the module 342 will be called rtc-max8998. 343 344config RTC_DRV_MAX8997 345 tristate "Maxim MAX8997" 346 depends on MFD_MAX8997 347 help 348 If you say yes here you will get support for the 349 RTC of Maxim MAX8997 PMIC. 350 351 This driver can also be built as a module. If so, the module 352 will be called rtc-max8997. 353 354config RTC_DRV_MAX77686 355 tristate "Maxim MAX77686" 356 depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST 357 help 358 If you say yes here you will get support for the 359 RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC. 360 361 This driver can also be built as a module. If so, the module 362 will be called rtc-max77686. 363 364config RTC_DRV_RK808 365 tristate "Rockchip RK805/RK808/RK818 RTC" 366 depends on MFD_RK808 367 help 368 If you say yes here you will get support for the 369 RTC of RK805, RK808 and RK818 PMIC. 370 371 This driver can also be built as a module. If so, the module 372 will be called rk808-rtc. 373 374config RTC_DRV_RS5C372 375 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A" 376 help 377 If you say yes here you get support for the 378 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. 379 380 This driver can also be built as a module. If so, the module 381 will be called rtc-rs5c372. 382 383config RTC_DRV_ISL1208 384 tristate "Intersil ISL1208" 385 help 386 If you say yes here you get support for the 387 Intersil ISL1208 RTC chip. 388 389 This driver can also be built as a module. If so, the module 390 will be called rtc-isl1208. 391 392config RTC_DRV_ISL12022 393 tristate "Intersil ISL12022" 394 help 395 If you say yes here you get support for the 396 Intersil ISL12022 RTC chip. 397 398 This driver can also be built as a module. If so, the module 399 will be called rtc-isl12022. 400 401config RTC_DRV_ISL12026 402 tristate "Intersil ISL12026" 403 depends on OF || COMPILE_TEST 404 help 405 If you say yes here you get support for the 406 Intersil ISL12026 RTC chip. 407 408 This driver can also be built as a module. If so, the module 409 will be called rtc-isl12026. 410 411config RTC_DRV_X1205 412 tristate "Xicor/Intersil X1205" 413 help 414 If you say yes here you get support for the 415 Xicor/Intersil X1205 RTC chip. 416 417 This driver can also be built as a module. If so, the module 418 will be called rtc-x1205. 419 420config RTC_DRV_PCF8523 421 tristate "NXP PCF8523" 422 help 423 If you say yes here you get support for the NXP PCF8523 RTC 424 chips. 425 426 This driver can also be built as a module. If so, the module 427 will be called rtc-pcf8523. 428 429config RTC_DRV_PCF85063 430 tristate "NXP PCF85063" 431 help 432 If you say yes here you get support for the PCF85063 RTC chip 433 434 This driver can also be built as a module. If so, the module 435 will be called rtc-pcf85063. 436 437config RTC_DRV_PCF85363 438 tristate "NXP PCF85363" 439 depends on I2C 440 select REGMAP_I2C 441 help 442 If you say yes here you get support for the PCF85363 RTC chip. 443 444 This driver can also be built as a module. If so, the module 445 will be called rtc-pcf85363. 446 447 The nvmem interface will be named pcf85363-#, where # is the 448 zero-based instance number. 449 450config RTC_DRV_PCF8563 451 tristate "Philips PCF8563/Epson RTC8564" 452 help 453 If you say yes here you get support for the 454 Philips PCF8563 RTC chip. The Epson RTC8564 455 should work as well. 456 457 This driver can also be built as a module. If so, the module 458 will be called rtc-pcf8563. 459 460config RTC_DRV_PCF8583 461 tristate "Philips PCF8583" 462 help 463 If you say yes here you get support for the Philips PCF8583 464 RTC chip found on Acorn RiscPCs. This driver supports the 465 platform specific method of retrieving the current year from 466 the RTC's SRAM. It will work on other platforms with the same 467 chip, but the year will probably have to be tweaked. 468 469 This driver can also be built as a module. If so, the module 470 will be called rtc-pcf8583. 471 472config RTC_DRV_M41T80 473 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible" 474 help 475 If you say Y here you will get support for the ST M41T60 476 and M41T80 RTC chips series. Currently, the following chips are 477 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84, 478 M41ST85, M41ST87, and MicroCrystal RV4162. 479 480 This driver can also be built as a module. If so, the module 481 will be called rtc-m41t80. 482 483config RTC_DRV_M41T80_WDT 484 bool "ST M41T65/M41T80 series RTC watchdog timer" 485 depends on RTC_DRV_M41T80 486 help 487 If you say Y here you will get support for the 488 watchdog timer in the ST M41T60 and M41T80 RTC chips series. 489 490config RTC_DRV_BQ32K 491 tristate "TI BQ32000" 492 help 493 If you say Y here you will get support for the TI 494 BQ32000 I2C RTC chip. 495 496 This driver can also be built as a module. If so, the module 497 will be called rtc-bq32k. 498 499config RTC_DRV_DM355EVM 500 tristate "TI DaVinci DM355 EVM RTC" 501 depends on MFD_DM355EVM_MSP 502 help 503 Supports the RTC firmware in the MSP430 on the DM355 EVM. 504 505config RTC_DRV_TWL92330 506 bool "TI TWL92330/Menelaus" 507 depends on MENELAUS 508 help 509 If you say yes here you get support for the RTC on the 510 TWL92330 "Menelaus" power management chip, used with OMAP2 511 platforms. The support is integrated with the rest of 512 the Menelaus driver; it's not separate module. 513 514config RTC_DRV_TWL4030 515 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0" 516 depends on TWL4030_CORE 517 depends on OF 518 help 519 If you say yes here you get support for the RTC on the 520 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms. 521 522 This driver can also be built as a module. If so, the module 523 will be called rtc-twl. 524 525config RTC_DRV_PALMAS 526 tristate "TI Palmas RTC driver" 527 depends on MFD_PALMAS 528 help 529 If you say yes here you get support for the RTC of TI PALMA series PMIC 530 chips. 531 532 This driver can also be built as a module. If so, the module 533 will be called rtc-palma. 534 535config RTC_DRV_TPS6586X 536 tristate "TI TPS6586X RTC driver" 537 depends on MFD_TPS6586X 538 help 539 TI Power Management IC TPS6586X supports RTC functionality 540 along with alarm. This driver supports the RTC driver for 541 the TPS6586X RTC module. 542 543config RTC_DRV_TPS65910 544 tristate "TI TPS65910 RTC driver" 545 depends on RTC_CLASS && MFD_TPS65910 546 help 547 If you say yes here you get support for the RTC on the 548 TPS65910 chips. 549 550 This driver can also be built as a module. If so, the module 551 will be called rtc-tps65910. 552 553config RTC_DRV_TPS80031 554 tristate "TI TPS80031/TPS80032 RTC driver" 555 depends on MFD_TPS80031 556 help 557 TI Power Management IC TPS80031 supports RTC functionality 558 along with alarm. This driver supports the RTC driver for 559 the TPS80031 RTC module. 560 561config RTC_DRV_RC5T583 562 tristate "RICOH 5T583 RTC driver" 563 depends on MFD_RC5T583 564 help 565 If you say yes here you get support for the RTC on the 566 RICOH 5T583 chips. 567 568 This driver can also be built as a module. If so, the module 569 will be called rtc-rc5t583. 570 571config RTC_DRV_S35390A 572 tristate "Seiko Instruments S-35390A" 573 select BITREVERSE 574 help 575 If you say yes here you will get support for the Seiko 576 Instruments S-35390A. 577 578 This driver can also be built as a module. If so the module 579 will be called rtc-s35390a. 580 581config RTC_DRV_FM3130 582 tristate "Ramtron FM3130" 583 help 584 If you say Y here you will get support for the 585 Ramtron FM3130 RTC chips. 586 Ramtron FM3130 is a chip with two separate devices inside, 587 RTC clock and FRAM. This driver provides only RTC functionality. 588 589 This driver can also be built as a module. If so the module 590 will be called rtc-fm3130. 591 592config RTC_DRV_RX8010 593 tristate "Epson RX8010SJ" 594 depends on I2C 595 help 596 If you say yes here you get support for the Epson RX8010SJ RTC 597 chip. 598 599 This driver can also be built as a module. If so, the module 600 will be called rtc-rx8010. 601 602config RTC_DRV_RX8581 603 tristate "Epson RX-8581" 604 help 605 If you say yes here you will get support for the Epson RX-8581. 606 607 This driver can also be built as a module. If so the module 608 will be called rtc-rx8581. 609 610config RTC_DRV_RX8025 611 tristate "Epson RX-8025SA/NB" 612 help 613 If you say yes here you get support for the Epson 614 RX-8025SA/NB RTC chips. 615 616 This driver can also be built as a module. If so, the module 617 will be called rtc-rx8025. 618 619config RTC_DRV_EM3027 620 tristate "EM Microelectronic EM3027" 621 help 622 If you say yes here you get support for the EM 623 Microelectronic EM3027 RTC chips. 624 625 This driver can also be built as a module. If so, the module 626 will be called rtc-em3027. 627 628config RTC_DRV_RV8803 629 tristate "Micro Crystal RV8803, Epson RX8900" 630 help 631 If you say yes here you get support for the Micro Crystal RV8803 and 632 Epson RX8900 RTC chips. 633 634 This driver can also be built as a module. If so, the module 635 will be called rtc-rv8803. 636 637config RTC_DRV_S5M 638 tristate "Samsung S2M/S5M series" 639 depends on MFD_SEC_CORE || COMPILE_TEST 640 select REGMAP_IRQ 641 help 642 If you say yes here you will get support for the 643 RTC of Samsung S2MPS14 and S5M PMIC series. 644 645 This driver can also be built as a module. If so, the module 646 will be called rtc-s5m. 647 648endif # I2C 649 650comment "SPI RTC drivers" 651 652if SPI_MASTER 653 654config RTC_DRV_M41T93 655 tristate "ST M41T93" 656 help 657 If you say yes here you will get support for the 658 ST M41T93 SPI RTC chip. 659 660 This driver can also be built as a module. If so, the module 661 will be called rtc-m41t93. 662 663config RTC_DRV_M41T94 664 tristate "ST M41T94" 665 help 666 If you say yes here you will get support for the 667 ST M41T94 SPI RTC chip. 668 669 This driver can also be built as a module. If so, the module 670 will be called rtc-m41t94. 671 672config RTC_DRV_DS1302 673 tristate "Dallas/Maxim DS1302" 674 depends on SPI 675 help 676 If you say yes here you get support for the Dallas DS1302 RTC chips. 677 678 This driver can also be built as a module. If so, the module 679 will be called rtc-ds1302. 680 681config RTC_DRV_DS1305 682 tristate "Dallas/Maxim DS1305/DS1306" 683 help 684 Select this driver to get support for the Dallas/Maxim DS1305 685 and DS1306 real time clock chips. These support a trickle 686 charger, alarms, and NVRAM in addition to the clock. 687 688 This driver can also be built as a module. If so, the module 689 will be called rtc-ds1305. 690 691config RTC_DRV_DS1343 692 select REGMAP_SPI 693 tristate "Dallas/Maxim DS1343/DS1344" 694 help 695 If you say yes here you get support for the 696 Dallas/Maxim DS1343 and DS1344 real time clock chips. 697 Support for trickle charger, alarm is provided. 698 699 This driver can also be built as a module. If so, the module 700 will be called rtc-ds1343. 701 702config RTC_DRV_DS1347 703 select REGMAP_SPI 704 tristate "Dallas/Maxim DS1347" 705 help 706 If you say yes here you get support for the 707 Dallas/Maxim DS1347 chips. 708 709 This driver only supports the RTC feature, and not other chip 710 features such as alarms. 711 712 This driver can also be built as a module. If so, the module 713 will be called rtc-ds1347. 714 715config RTC_DRV_DS1390 716 tristate "Dallas/Maxim DS1390/93/94" 717 help 718 If you say yes here you get support for the 719 Dallas/Maxim DS1390/93/94 chips. 720 721 This driver supports the RTC feature and trickle charging but not 722 other chip features such as alarms. 723 724 This driver can also be built as a module. If so, the module 725 will be called rtc-ds1390. 726 727config RTC_DRV_MAX6916 728 tristate "Maxim MAX6916" 729 help 730 If you say yes here you will get support for the 731 Maxim MAX6916 SPI RTC chip. 732 733 This driver only supports the RTC feature, and not other chip 734 features such as alarms. 735 736 This driver can also be built as a module. If so, the module 737 will be called rtc-max6916. 738 739config RTC_DRV_R9701 740 tristate "Epson RTC-9701JE" 741 help 742 If you say yes here you will get support for the 743 Epson RTC-9701JE SPI RTC chip. 744 745 This driver can also be built as a module. If so, the module 746 will be called rtc-r9701. 747 748config RTC_DRV_RX4581 749 tristate "Epson RX-4581" 750 help 751 If you say yes here you will get support for the Epson RX-4581. 752 753 This driver can also be built as a module. If so the module 754 will be called rtc-rx4581. 755 756config RTC_DRV_RX6110 757 tristate "Epson RX-6110" 758 select REGMAP_SPI 759 help 760 If you say yes here you will get support for the Epson RX-6610. 761 762 This driver can also be built as a module. If so the module 763 will be called rtc-rx6110. 764 765config RTC_DRV_RS5C348 766 tristate "Ricoh RS5C348A/B" 767 help 768 If you say yes here you get support for the 769 Ricoh RS5C348A and RS5C348B RTC chips. 770 771 This driver can also be built as a module. If so, the module 772 will be called rtc-rs5c348. 773 774config RTC_DRV_MAX6902 775 tristate "Maxim MAX6902" 776 help 777 If you say yes here you will get support for the 778 Maxim MAX6902 SPI RTC chip. 779 780 This driver can also be built as a module. If so, the module 781 will be called rtc-max6902. 782 783config RTC_DRV_PCF2123 784 tristate "NXP PCF2123" 785 help 786 If you say yes here you get support for the NXP PCF2123 787 RTC chip. 788 789 This driver can also be built as a module. If so, the module 790 will be called rtc-pcf2123. 791 792config RTC_DRV_MCP795 793 tristate "Microchip MCP795" 794 help 795 If you say yes here you will get support for the Microchip MCP795. 796 797 This driver can also be built as a module. If so the module 798 will be called rtc-mcp795. 799 800endif # SPI_MASTER 801 802# 803# Helper to resolve issues with configs that have SPI enabled but I2C 804# modular. See SND_SOC_I2C_AND_SPI for more information 805# 806config RTC_I2C_AND_SPI 807 tristate 808 default m if I2C=m 809 default y if I2C=y 810 default y if SPI_MASTER=y 811 select REGMAP_I2C if I2C 812 select REGMAP_SPI if SPI_MASTER 813 814comment "SPI and I2C RTC drivers" 815 816config RTC_DRV_DS3232 817 tristate "Dallas/Maxim DS3232/DS3234" 818 depends on RTC_I2C_AND_SPI 819 help 820 If you say yes here you get support for Dallas Semiconductor 821 DS3232 and DS3234 real-time clock chips. If an interrupt is associated 822 with the device, the alarm functionality is supported. 823 824 This driver can also be built as a module. If so, the module 825 will be called rtc-ds3232. 826 827config RTC_DRV_DS3232_HWMON 828 bool "HWMON support for Dallas/Maxim DS3232/DS3234" 829 depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m) 830 default y 831 help 832 Say Y here if you want to expose temperature sensor data on 833 rtc-ds3232 834 835config RTC_DRV_PCF2127 836 tristate "NXP PCF2127" 837 depends on RTC_I2C_AND_SPI 838 help 839 If you say yes here you get support for the NXP PCF2127/29 RTC 840 chips. 841 842 This driver can also be built as a module. If so, the module 843 will be called rtc-pcf2127. 844 845config RTC_DRV_RV3029C2 846 tristate "Micro Crystal RV3029/3049" 847 depends on RTC_I2C_AND_SPI 848 help 849 If you say yes here you get support for the Micro Crystal 850 RV3029 and RV3049 RTC chips. 851 852 This driver can also be built as a module. If so, the module 853 will be called rtc-rv3029c2. 854 855config RTC_DRV_RV3029_HWMON 856 bool "HWMON support for RV3029/3049" 857 depends on RTC_DRV_RV3029C2 && HWMON 858 depends on !(RTC_DRV_RV3029C2=y && HWMON=m) 859 default y 860 help 861 Say Y here if you want to expose temperature sensor data on 862 rtc-rv3029. 863 864comment "Platform RTC drivers" 865 866# this 'CMOS' RTC driver is arch dependent because it requires 867# <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a 868# global rtc_lock ... it's not yet just another platform_device. 869 870config RTC_DRV_CMOS 871 tristate "PC-style 'CMOS'" 872 depends on X86 || ARM || PPC || MIPS || SPARC64 873 default y if X86 874 select RTC_MC146818_LIB 875 help 876 Say "yes" here to get direct support for the real time clock 877 found in every PC or ACPI-based system, and some other boards. 878 Specifically the original MC146818, compatibles like those in 879 PC south bridges, the DS12887 or M48T86, some multifunction 880 or LPC bus chips, and so on. 881 882 Your system will need to define the platform device used by 883 this driver, otherwise it won't be accessible. This means 884 you can safely enable this driver if you don't know whether 885 or not your board has this kind of hardware. 886 887 This driver can also be built as a module. If so, the module 888 will be called rtc-cmos. 889 890config RTC_DRV_ALPHA 891 bool "Alpha PC-style CMOS" 892 depends on ALPHA 893 select RTC_MC146818_LIB 894 default y 895 help 896 Direct support for the real-time clock found on every Alpha 897 system, specifically MC146818 compatibles. If in doubt, say Y. 898 899config RTC_DRV_VRTC 900 tristate "Virtual RTC for Intel MID platforms" 901 depends on X86_INTEL_MID 902 default y if X86_INTEL_MID 903 904 help 905 Say "yes" here to get direct support for the real time clock 906 found on Moorestown platforms. The VRTC is a emulated RTC that 907 derives its clock source from a real RTC in the PMIC. The MC146818 908 style programming interface is mostly conserved, but any 909 updates are done via IPC calls to the system controller FW. 910 911config RTC_DRV_DS1216 912 tristate "Dallas DS1216" 913 depends on SNI_RM 914 help 915 If you say yes here you get support for the Dallas DS1216 RTC chips. 916 917config RTC_DRV_DS1286 918 tristate "Dallas DS1286" 919 depends on HAS_IOMEM 920 help 921 If you say yes here you get support for the Dallas DS1286 RTC chips. 922 923config RTC_DRV_DS1511 924 tristate "Dallas DS1511" 925 depends on HAS_IOMEM 926 help 927 If you say yes here you get support for the 928 Dallas DS1511 timekeeping/watchdog chip. 929 930 This driver can also be built as a module. If so, the module 931 will be called rtc-ds1511. 932 933config RTC_DRV_DS1553 934 tristate "Maxim/Dallas DS1553" 935 depends on HAS_IOMEM 936 help 937 If you say yes here you get support for the 938 Maxim/Dallas DS1553 timekeeping chip. 939 940 This driver can also be built as a module. If so, the module 941 will be called rtc-ds1553. 942 943config RTC_DRV_DS1685_FAMILY 944 tristate "Dallas/Maxim DS1685 Family" 945 help 946 If you say yes here you get support for the Dallas/Maxim DS1685 947 family of real time chips. This family includes the DS1685/DS1687, 948 DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and 949 DS17885/DS17887 chips. 950 951 This driver can also be built as a module. If so, the module 952 will be called rtc-ds1685. 953 954choice 955 prompt "Subtype" 956 depends on RTC_DRV_DS1685_FAMILY 957 default RTC_DRV_DS1685 958 959config RTC_DRV_DS1685 960 bool "DS1685/DS1687" 961 help 962 This enables support for the Dallas/Maxim DS1685/DS1687 real time 963 clock chip. 964 965 This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30) 966 systems, as well as EPPC-405-UC modules by electronic system design 967 GmbH. 968 969config RTC_DRV_DS1689 970 bool "DS1689/DS1693" 971 help 972 This enables support for the Dallas/Maxim DS1689/DS1693 real time 973 clock chip. 974 975 This is an older RTC chip, supplanted by the DS1685/DS1687 above, 976 which supports a few minor features such as Vcc, Vbat, and Power 977 Cycle counters, plus a customer-specific, 8-byte ROM/Serial number. 978 979 It also works for the even older DS1688/DS1691 RTC chips, which are 980 virtually the same and carry the same model number. Both chips 981 have 114 bytes of user NVRAM. 982 983config RTC_DRV_DS17285 984 bool "DS17285/DS17287" 985 help 986 This enables support for the Dallas/Maxim DS17285/DS17287 real time 987 clock chip. 988 989 This chip features 2kb of extended NV-SRAM. It may possibly be 990 found in some SGI O2 systems (rare). 991 992config RTC_DRV_DS17485 993 bool "DS17485/DS17487" 994 help 995 This enables support for the Dallas/Maxim DS17485/DS17487 real time 996 clock chip. 997 998 This chip features 4kb of extended NV-SRAM. 999 1000config RTC_DRV_DS17885 1001 bool "DS17885/DS17887" 1002 help 1003 This enables support for the Dallas/Maxim DS17885/DS17887 real time 1004 clock chip. 1005 1006 This chip features 8kb of extended NV-SRAM. 1007 1008endchoice 1009 1010config RTC_DS1685_PROC_REGS 1011 bool "Display register values in /proc" 1012 depends on RTC_DRV_DS1685_FAMILY && PROC_FS 1013 help 1014 Enable this to display a readout of all of the RTC registers in 1015 /proc/drivers/rtc. Keep in mind that this can potentially lead 1016 to lost interrupts, as reading Control Register C will clear 1017 all pending IRQ flags. 1018 1019 Unless you are debugging this driver, choose N. 1020 1021config RTC_DRV_DS1742 1022 tristate "Maxim/Dallas DS1742/1743" 1023 depends on HAS_IOMEM 1024 help 1025 If you say yes here you get support for the 1026 Maxim/Dallas DS1742/1743 timekeeping chip. 1027 1028 This driver can also be built as a module. If so, the module 1029 will be called rtc-ds1742. 1030 1031config RTC_DRV_DS2404 1032 tristate "Maxim/Dallas DS2404" 1033 help 1034 If you say yes here you get support for the 1035 Dallas DS2404 RTC chip. 1036 1037 This driver can also be built as a module. If so, the module 1038 will be called rtc-ds2404. 1039 1040config RTC_DRV_DA9052 1041 tristate "Dialog DA9052/DA9053 RTC" 1042 depends on PMIC_DA9052 1043 help 1044 Say y here to support the RTC driver for Dialog Semiconductor 1045 DA9052-BC and DA9053-AA/Bx PMICs. 1046 1047config RTC_DRV_DA9055 1048 tristate "Dialog Semiconductor DA9055 RTC" 1049 depends on MFD_DA9055 1050 help 1051 If you say yes here you will get support for the 1052 RTC of the Dialog DA9055 PMIC. 1053 1054 This driver can also be built as a module. If so, the module 1055 will be called rtc-da9055 1056 1057config RTC_DRV_DA9063 1058 tristate "Dialog Semiconductor DA9063/DA9062 RTC" 1059 depends on MFD_DA9063 || MFD_DA9062 1060 help 1061 If you say yes here you will get support for the RTC subsystem 1062 for the Dialog Semiconductor PMIC chips DA9063 and DA9062. 1063 1064 This driver can also be built as a module. If so, the module 1065 will be called "rtc-da9063". 1066 1067config RTC_DRV_EFI 1068 tristate "EFI RTC" 1069 depends on EFI && !X86 1070 help 1071 If you say yes here you will get support for the EFI 1072 Real Time Clock. 1073 1074 This driver can also be built as a module. If so, the module 1075 will be called rtc-efi. 1076 1077config RTC_DRV_STK17TA8 1078 tristate "Simtek STK17TA8" 1079 depends on HAS_IOMEM 1080 help 1081 If you say yes here you get support for the 1082 Simtek STK17TA8 timekeeping chip. 1083 1084 This driver can also be built as a module. If so, the module 1085 will be called rtc-stk17ta8. 1086 1087config RTC_DRV_M48T86 1088 tristate "ST M48T86/Dallas DS12887" 1089 help 1090 If you say Y here you will get support for the 1091 ST M48T86 and Dallas DS12887 RTC chips. 1092 1093 This driver can also be built as a module. If so, the module 1094 will be called rtc-m48t86. 1095 1096config RTC_DRV_M48T35 1097 tristate "ST M48T35" 1098 depends on HAS_IOMEM 1099 help 1100 If you say Y here you will get support for the 1101 ST M48T35 RTC chip. 1102 1103 This driver can also be built as a module, if so, the module 1104 will be called "rtc-m48t35". 1105 1106config RTC_DRV_M48T59 1107 tristate "ST M48T59/M48T08/M48T02" 1108 depends on HAS_IOMEM 1109 help 1110 If you say Y here you will get support for the 1111 ST M48T59 RTC chip and compatible ST M48T08 and M48T02. 1112 1113 These chips are usually found in Sun SPARC and UltraSPARC 1114 workstations. 1115 1116 This driver can also be built as a module, if so, the module 1117 will be called "rtc-m48t59". 1118 1119config RTC_DRV_MSM6242 1120 tristate "Oki MSM6242" 1121 depends on HAS_IOMEM 1122 help 1123 If you say yes here you get support for the Oki MSM6242 1124 timekeeping chip. It is used in some Amiga models (e.g. A2000). 1125 1126 This driver can also be built as a module. If so, the module 1127 will be called rtc-msm6242. 1128 1129config RTC_DRV_BQ4802 1130 tristate "TI BQ4802" 1131 depends on HAS_IOMEM 1132 help 1133 If you say Y here you will get support for the TI 1134 BQ4802 RTC chip. 1135 1136 This driver can also be built as a module. If so, the module 1137 will be called rtc-bq4802. 1138 1139config RTC_DRV_RP5C01 1140 tristate "Ricoh RP5C01" 1141 depends on HAS_IOMEM 1142 help 1143 If you say yes here you get support for the Ricoh RP5C01 1144 timekeeping chip. It is used in some Amiga models (e.g. A3000 1145 and A4000). 1146 1147 This driver can also be built as a module. If so, the module 1148 will be called rtc-rp5c01. 1149 1150config RTC_DRV_V3020 1151 tristate "EM Microelectronic V3020" 1152 help 1153 If you say yes here you will get support for the 1154 EM Microelectronic v3020 RTC chip. 1155 1156 This driver can also be built as a module. If so, the module 1157 will be called rtc-v3020. 1158 1159config RTC_DRV_WM831X 1160 tristate "Wolfson Microelectronics WM831x RTC" 1161 depends on MFD_WM831X 1162 help 1163 If you say yes here you will get support for the RTC subsystem 1164 of the Wolfson Microelectronics WM831X series PMICs. 1165 1166 This driver can also be built as a module. If so, the module 1167 will be called "rtc-wm831x". 1168 1169config RTC_DRV_WM8350 1170 tristate "Wolfson Microelectronics WM8350 RTC" 1171 depends on MFD_WM8350 1172 help 1173 If you say yes here you will get support for the RTC subsystem 1174 of the Wolfson Microelectronics WM8350. 1175 1176 This driver can also be built as a module. If so, the module 1177 will be called "rtc-wm8350". 1178 1179config RTC_DRV_SC27XX 1180 tristate "Spreadtrum SC27xx RTC" 1181 depends on MFD_SC27XX_PMIC || COMPILE_TEST 1182 help 1183 If you say Y here you will get support for the RTC subsystem 1184 of the Spreadtrum SC27xx series PMICs. The SC27xx series PMICs 1185 includes the SC2720, SC2721, SC2723, SC2730 and SC2731 chips. 1186 1187 This driver can also be built as a module. If so, the module 1188 will be called rtc-sc27xx. 1189 1190config RTC_DRV_SPEAR 1191 tristate "SPEAR ST RTC" 1192 depends on PLAT_SPEAR || COMPILE_TEST 1193 default y 1194 help 1195 If you say Y here you will get support for the RTC found on 1196 spear 1197 1198config RTC_DRV_PCF50633 1199 depends on MFD_PCF50633 1200 tristate "NXP PCF50633 RTC" 1201 help 1202 If you say yes here you get support for the RTC subsystem of the 1203 NXP PCF50633 used in embedded systems. 1204 1205config RTC_DRV_AB3100 1206 tristate "ST-Ericsson AB3100 RTC" 1207 depends on AB3100_CORE 1208 default y if AB3100_CORE 1209 help 1210 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC 1211 support. This chip contains a battery- and capacitor-backed RTC. 1212 1213config RTC_DRV_AB8500 1214 tristate "ST-Ericsson AB8500 RTC" 1215 depends on AB8500_CORE 1216 select RTC_INTF_DEV 1217 select RTC_INTF_DEV_UIE_EMUL 1218 help 1219 Select this to enable the ST-Ericsson AB8500 power management IC RTC 1220 support. This chip contains a battery- and capacitor-backed RTC. 1221 1222config RTC_DRV_NUC900 1223 tristate "NUC910/NUC920 RTC driver" 1224 depends on ARCH_W90X900 || COMPILE_TEST 1225 help 1226 If you say yes here you get support for the RTC subsystem of the 1227 NUC910/NUC920 used in embedded systems. 1228 1229config RTC_DRV_OPAL 1230 tristate "IBM OPAL RTC driver" 1231 depends on PPC_POWERNV 1232 default y 1233 help 1234 If you say yes here you get support for the PowerNV platform RTC 1235 driver based on OPAL interfaces. 1236 1237 This driver can also be built as a module. If so, the module 1238 will be called rtc-opal. 1239 1240config RTC_DRV_ZYNQMP 1241 tristate "Xilinx Zynq Ultrascale+ MPSoC RTC" 1242 depends on OF 1243 help 1244 If you say yes here you get support for the RTC controller found on 1245 Xilinx Zynq Ultrascale+ MPSoC. 1246 1247config RTC_DRV_CROS_EC 1248 tristate "Chrome OS EC RTC driver" 1249 depends on MFD_CROS_EC 1250 help 1251 If you say yes here you will get support for the 1252 Chrome OS Embedded Controller's RTC. 1253 1254 This driver can also be built as a module. If so, the module 1255 will be called rtc-cros-ec. 1256 1257comment "on-CPU RTC drivers" 1258 1259config RTC_DRV_ASM9260 1260 tristate "Alphascale asm9260 RTC" 1261 depends on MACH_ASM9260 || COMPILE_TEST 1262 help 1263 If you say yes here you get support for the RTC on the 1264 Alphascale asm9260 SoC. 1265 1266 This driver can also be built as a module. If so, the module 1267 will be called rtc-asm9260. 1268 1269config RTC_DRV_DAVINCI 1270 tristate "TI DaVinci RTC" 1271 depends on ARCH_DAVINCI_DM365 || COMPILE_TEST 1272 help 1273 If you say yes here you get support for the RTC on the 1274 DaVinci platforms (DM365). 1275 1276 This driver can also be built as a module. If so, the module 1277 will be called rtc-davinci. 1278 1279config RTC_DRV_DIGICOLOR 1280 tristate "Conexant Digicolor RTC" 1281 depends on ARCH_DIGICOLOR || COMPILE_TEST 1282 help 1283 If you say yes here you get support for the RTC on Conexant 1284 Digicolor platforms. This currently includes the CX92755 SoC. 1285 1286 This driver can also be built as a module. If so, the module 1287 will be called rtc-digicolor. 1288 1289config RTC_DRV_IMXDI 1290 tristate "Freescale IMX DryIce Real Time Clock" 1291 depends on ARCH_MXC 1292 help 1293 Support for Freescale IMX DryIce RTC 1294 1295 This driver can also be built as a module, if so, the module 1296 will be called "rtc-imxdi". 1297 1298config RTC_DRV_OMAP 1299 tristate "TI OMAP Real Time Clock" 1300 depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST 1301 depends on OF 1302 depends on PINCTRL 1303 select GENERIC_PINCONF 1304 help 1305 Say "yes" here to support the on chip real time clock 1306 present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx. 1307 1308 This driver can also be built as a module, if so, module 1309 will be called rtc-omap. 1310 1311config HAVE_S3C_RTC 1312 bool 1313 help 1314 This will include RTC support for Samsung SoCs. If 1315 you want to include RTC support for any machine, kindly 1316 select this in the respective mach-XXXX/Kconfig file. 1317 1318config RTC_DRV_S3C 1319 tristate "Samsung S3C series SoC RTC" 1320 depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST 1321 help 1322 RTC (Realtime Clock) driver for the clock inbuilt into the 1323 Samsung S3C24XX series of SoCs. This can provide periodic 1324 interrupt rates from 1Hz to 64Hz for user programs, and 1325 wakeup from Alarm. 1326 1327 The driver currently supports the common features on all the 1328 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440 1329 and S3C2442. 1330 1331 This driver can also be build as a module. If so, the module 1332 will be called rtc-s3c. 1333 1334config RTC_DRV_EP93XX 1335 tristate "Cirrus Logic EP93XX" 1336 depends on ARCH_EP93XX || COMPILE_TEST 1337 help 1338 If you say yes here you get support for the 1339 RTC embedded in the Cirrus Logic EP93XX processors. 1340 1341 This driver can also be built as a module. If so, the module 1342 will be called rtc-ep93xx. 1343 1344config RTC_DRV_SA1100 1345 tristate "SA11x0/PXA2xx/PXA910" 1346 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP 1347 help 1348 If you say Y here you will get access to the real time clock 1349 built into your SA11x0 or PXA2xx CPU. 1350 1351 To compile this driver as a module, choose M here: the 1352 module will be called rtc-sa1100. 1353 1354config RTC_DRV_SH 1355 tristate "SuperH On-Chip RTC" 1356 depends on SUPERH || ARCH_RENESAS 1357 help 1358 Say Y here to enable support for the on-chip RTC found in 1359 most SuperH processors. This RTC is also found in RZ/A SoCs. 1360 1361 To compile this driver as a module, choose M here: the 1362 module will be called rtc-sh. 1363 1364config RTC_DRV_VR41XX 1365 tristate "NEC VR41XX" 1366 depends on CPU_VR41XX || COMPILE_TEST 1367 help 1368 If you say Y here you will get access to the real time clock 1369 built into your NEC VR41XX CPU. 1370 1371 To compile this driver as a module, choose M here: the 1372 module will be called rtc-vr41xx. 1373 1374config RTC_DRV_PL030 1375 tristate "ARM AMBA PL030 RTC" 1376 depends on ARM_AMBA 1377 help 1378 If you say Y here you will get access to ARM AMBA 1379 PrimeCell PL030 RTC found on certain ARM SOCs. 1380 1381 To compile this driver as a module, choose M here: the 1382 module will be called rtc-pl030. 1383 1384config RTC_DRV_PL031 1385 tristate "ARM AMBA PL031 RTC" 1386 depends on ARM_AMBA 1387 help 1388 If you say Y here you will get access to ARM AMBA 1389 PrimeCell PL031 RTC found on certain ARM SOCs. 1390 1391 To compile this driver as a module, choose M here: the 1392 module will be called rtc-pl031. 1393 1394config RTC_DRV_AT91RM9200 1395 tristate "AT91RM9200 or some AT91SAM9 RTC" 1396 depends on ARCH_AT91 || COMPILE_TEST 1397 help 1398 Driver for the internal RTC (Realtime Clock) module found on 1399 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips 1400 this is powered by the backup power supply. 1401 1402config RTC_DRV_AT91SAM9 1403 tristate "AT91SAM9 RTT as RTC" 1404 depends on ARCH_AT91 || COMPILE_TEST 1405 depends on HAS_IOMEM 1406 select MFD_SYSCON 1407 help 1408 Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which 1409 can be used as an RTC thanks to the backup power supply (e.g. a 1410 small coin cell battery) which keeps this block and the GPBR 1411 (General Purpose Backup Registers) block powered when the device 1412 is shutdown. 1413 Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd 1414 probably want to use the real RTC block instead of the "RTT as an 1415 RTC" driver. 1416 1417config RTC_DRV_AU1XXX 1418 tristate "Au1xxx Counter0 RTC support" 1419 depends on MIPS_ALCHEMY 1420 help 1421 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year 1422 counter) to be used as a RTC. 1423 1424 This driver can also be built as a module. If so, the module 1425 will be called rtc-au1xxx. 1426 1427config RTC_DRV_RS5C313 1428 tristate "Ricoh RS5C313" 1429 depends on SH_LANDISK 1430 help 1431 If you say yes here you get support for the Ricoh RS5C313 RTC chips. 1432 1433config RTC_DRV_GENERIC 1434 tristate "Generic RTC support" 1435 # Please consider writing a new RTC driver instead of using the generic 1436 # RTC abstraction 1437 depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST 1438 help 1439 Say Y or M here to enable RTC support on systems using the generic 1440 RTC abstraction. If you do not know what you are doing, you should 1441 just say Y. 1442 1443config RTC_DRV_PXA 1444 tristate "PXA27x/PXA3xx" 1445 depends on ARCH_PXA 1446 select RTC_DRV_SA1100 1447 help 1448 If you say Y here you will get access to the real time clock 1449 built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs 1450 consisting of an SA1100 compatible RTC and the extended PXA RTC. 1451 1452 This RTC driver uses PXA RTC registers available since pxa27x 1453 series (RDxR, RYxR) instead of legacy RCNR, RTAR. 1454 1455config RTC_DRV_VT8500 1456 tristate "VIA/WonderMedia 85xx SoC RTC" 1457 depends on ARCH_VT8500 || COMPILE_TEST 1458 help 1459 If you say Y here you will get access to the real time clock 1460 built into your VIA VT8500 SoC or its relatives. 1461 1462 1463config RTC_DRV_SUN4V 1464 bool "SUN4V Hypervisor RTC" 1465 depends on SPARC64 1466 help 1467 If you say Y here you will get support for the Hypervisor 1468 based RTC on SUN4V systems. 1469 1470config RTC_DRV_SUN6I 1471 bool "Allwinner A31 RTC" 1472 default MACH_SUN6I || MACH_SUN8I 1473 depends on COMMON_CLK 1474 depends on ARCH_SUNXI || COMPILE_TEST 1475 help 1476 If you say Y here you will get support for the RTC found in 1477 some Allwinner SoCs like the A31 or the A64. 1478 1479config RTC_DRV_SUNXI 1480 tristate "Allwinner sun4i/sun7i RTC" 1481 depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST 1482 help 1483 If you say Y here you will get support for the RTC found on 1484 Allwinner A10/A20. 1485 1486config RTC_DRV_STARFIRE 1487 bool "Starfire RTC" 1488 depends on SPARC64 1489 help 1490 If you say Y here you will get support for the RTC found on 1491 Starfire systems. 1492 1493config RTC_DRV_TX4939 1494 tristate "TX4939 SoC" 1495 depends on SOC_TX4939 || COMPILE_TEST 1496 help 1497 Driver for the internal RTC (Realtime Clock) module found on 1498 Toshiba TX4939 SoC. 1499 1500config RTC_DRV_MV 1501 tristate "Marvell SoC RTC" 1502 depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST 1503 help 1504 If you say yes here you will get support for the in-chip RTC 1505 that can be found in some of Marvell's SoC devices, such as 1506 the Kirkwood 88F6281 and 88F6192. 1507 1508 This driver can also be built as a module. If so, the module 1509 will be called rtc-mv. 1510 1511config RTC_DRV_ARMADA38X 1512 tristate "Armada 38x Marvell SoC RTC" 1513 depends on ARCH_MVEBU || COMPILE_TEST 1514 help 1515 If you say yes here you will get support for the in-chip RTC 1516 that can be found in the Armada 38x Marvell's SoC device 1517 1518 This driver can also be built as a module. If so, the module 1519 will be called armada38x-rtc. 1520 1521config RTC_DRV_FTRTC010 1522 tristate "Faraday Technology FTRTC010 RTC" 1523 depends on HAS_IOMEM 1524 default ARCH_GEMINI 1525 help 1526 If you say Y here you will get support for the 1527 Faraday Technolog FTRTC010 found on e.g. Gemini SoC's. 1528 1529 This driver can also be built as a module. If so, the module 1530 will be called rtc-ftrtc010. 1531 1532config RTC_DRV_PS3 1533 tristate "PS3 RTC" 1534 depends on PPC_PS3 1535 help 1536 If you say yes here you will get support for the RTC on PS3. 1537 1538 This driver can also be built as a module. If so, the module 1539 will be called rtc-ps3. 1540 1541config RTC_DRV_COH901331 1542 tristate "ST-Ericsson COH 901 331 RTC" 1543 depends on ARCH_U300 || COMPILE_TEST 1544 help 1545 If you say Y here you will get access to ST-Ericsson 1546 COH 901 331 RTC clock found in some ST-Ericsson Mobile 1547 Platforms. 1548 1549 This driver can also be built as a module. If so, the module 1550 will be called "rtc-coh901331". 1551 1552 1553config RTC_DRV_STMP 1554 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC" 1555 depends on ARCH_MXS || COMPILE_TEST 1556 select STMP_DEVICE 1557 help 1558 If you say yes here you will get support for the onboard 1559 STMP3xxx/i.MX23/i.MX28 RTC. 1560 1561 This driver can also be built as a module. If so, the module 1562 will be called rtc-stmp3xxx. 1563 1564config RTC_DRV_PCAP 1565 tristate "PCAP RTC" 1566 depends on EZX_PCAP 1567 help 1568 If you say Y here you will get support for the RTC found on 1569 the PCAP2 ASIC used on some Motorola phones. 1570 1571config RTC_DRV_MC13XXX 1572 depends on MFD_MC13XXX 1573 tristate "Freescale MC13xxx RTC" 1574 help 1575 This enables support for the RTCs found on Freescale's PMICs 1576 MC13783 and MC13892. 1577 1578config RTC_DRV_MPC5121 1579 tristate "Freescale MPC5121 built-in RTC" 1580 depends on PPC_MPC512x || PPC_MPC52xx 1581 help 1582 If you say yes here you will get support for the 1583 built-in RTC on MPC5121 or on MPC5200. 1584 1585 This driver can also be built as a module. If so, the module 1586 will be called rtc-mpc5121. 1587 1588config RTC_DRV_JZ4740 1589 tristate "Ingenic JZ4740 SoC" 1590 depends on MACH_INGENIC || COMPILE_TEST 1591 help 1592 If you say yes here you get support for the Ingenic JZ47xx SoCs RTC 1593 controllers. 1594 1595 This driver can also be built as a module. If so, the module 1596 will be called rtc-jz4740. 1597 1598config RTC_DRV_LPC24XX 1599 tristate "NXP RTC for LPC178x/18xx/408x/43xx" 1600 depends on ARCH_LPC18XX || COMPILE_TEST 1601 depends on OF && HAS_IOMEM 1602 help 1603 This enables support for the NXP RTC found which can be found on 1604 NXP LPC178x/18xx/408x/43xx devices. 1605 1606 If you have one of the devices above enable this driver to use 1607 the hardware RTC. This driver can also be built as a module. If 1608 so, the module will be called rtc-lpc24xx. 1609 1610config RTC_DRV_LPC32XX 1611 depends on ARCH_LPC32XX || COMPILE_TEST 1612 tristate "NXP LPC32XX RTC" 1613 help 1614 This enables support for the NXP RTC in the LPC32XX 1615 1616 This driver can also be built as a module. If so, the module 1617 will be called rtc-lpc32xx. 1618 1619config RTC_DRV_PM8XXX 1620 tristate "Qualcomm PMIC8XXX RTC" 1621 depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST 1622 help 1623 If you say yes here you get support for the 1624 Qualcomm PMIC8XXX RTC. 1625 1626 To compile this driver as a module, choose M here: the 1627 module will be called rtc-pm8xxx. 1628 1629config RTC_DRV_TEGRA 1630 tristate "NVIDIA Tegra Internal RTC driver" 1631 depends on ARCH_TEGRA || COMPILE_TEST 1632 help 1633 If you say yes here you get support for the 1634 Tegra 200 series internal RTC module. 1635 1636 This drive can also be built as a module. If so, the module 1637 will be called rtc-tegra. 1638 1639config RTC_DRV_PUV3 1640 tristate "PKUnity v3 RTC support" 1641 depends on ARCH_PUV3 1642 help 1643 This enables support for the RTC in the PKUnity-v3 SoCs. 1644 1645 This drive can also be built as a module. If so, the module 1646 will be called rtc-puv3. 1647 1648config RTC_DRV_LOONGSON1 1649 tristate "loongson1 RTC support" 1650 depends on MACH_LOONGSON32 1651 help 1652 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year 1653 counter) to be used as a RTC. 1654 1655 This driver can also be built as a module. If so, the module 1656 will be called rtc-ls1x. 1657 1658config RTC_DRV_MXC 1659 tristate "Freescale MXC Real Time Clock" 1660 depends on ARCH_MXC 1661 help 1662 If you say yes here you get support for the Freescale MXC 1663 RTC module. 1664 1665 This driver can also be built as a module, if so, the module 1666 will be called "rtc-mxc". 1667 1668config RTC_DRV_MXC_V2 1669 tristate "Freescale MXC Real Time Clock for i.MX53" 1670 depends on ARCH_MXC 1671 help 1672 If you say yes here you get support for the Freescale MXC 1673 SRTC module in i.MX53 processor. 1674 1675 This driver can also be built as a module, if so, the module 1676 will be called "rtc-mxc_v2". 1677 1678config RTC_DRV_SNVS 1679 tristate "Freescale SNVS RTC support" 1680 select REGMAP_MMIO 1681 depends on HAS_IOMEM 1682 depends on OF 1683 help 1684 If you say yes here you get support for the Freescale SNVS 1685 Low Power (LP) RTC module. 1686 1687 This driver can also be built as a module, if so, the module 1688 will be called "rtc-snvs". 1689 1690config RTC_DRV_SIRFSOC 1691 tristate "SiRFSOC RTC" 1692 depends on ARCH_SIRF 1693 help 1694 Say "yes" here to support the real time clock on SiRF SOC chips. 1695 This driver can also be built as a module called rtc-sirfsoc. 1696 1697config RTC_DRV_ST_LPC 1698 tristate "STMicroelectronics LPC RTC" 1699 depends on ARCH_STI 1700 depends on OF 1701 help 1702 Say Y here to include STMicroelectronics Low Power Controller 1703 (LPC) based RTC support. 1704 1705 To compile this driver as a module, choose M here: the 1706 module will be called rtc-st-lpc. 1707 1708config RTC_DRV_MOXART 1709 tristate "MOXA ART RTC" 1710 depends on ARCH_MOXART || COMPILE_TEST 1711 help 1712 If you say yes here you get support for the MOXA ART 1713 RTC module. 1714 1715 This driver can also be built as a module. If so, the module 1716 will be called rtc-moxart 1717 1718config RTC_DRV_MT6397 1719 tristate "MediaTek PMIC based RTC" 1720 depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN) 1721 help 1722 This selects the MediaTek(R) RTC driver. RTC is part of MediaTek 1723 MT6397 PMIC. You should enable MT6397 PMIC MFD before select 1724 MediaTek(R) RTC driver. 1725 1726 If you want to use MediaTek(R) RTC interface, select Y or M here. 1727 1728config RTC_DRV_MT7622 1729 tristate "MediaTek SoC based RTC" 1730 depends on ARCH_MEDIATEK || COMPILE_TEST 1731 help 1732 This enables support for the real time clock built in the MediaTek 1733 SoCs. 1734 1735 This drive can also be built as a module. If so, the module 1736 will be called rtc-mt7622. 1737 1738config RTC_DRV_XGENE 1739 tristate "APM X-Gene RTC" 1740 depends on HAS_IOMEM 1741 depends on ARCH_XGENE || COMPILE_TEST 1742 help 1743 If you say yes here you get support for the APM X-Gene SoC real time 1744 clock. 1745 1746 This driver can also be built as a module, if so, the module 1747 will be called "rtc-xgene". 1748 1749config RTC_DRV_PIC32 1750 tristate "Microchip PIC32 RTC" 1751 depends on MACH_PIC32 1752 default y 1753 help 1754 If you say yes here you get support for the PIC32 RTC module. 1755 1756 This driver can also be built as a module. If so, the module 1757 will be called rtc-pic32 1758 1759config RTC_DRV_R7301 1760 tristate "EPSON TOYOCOM RTC-7301SF/DG" 1761 select REGMAP_MMIO 1762 depends on OF && HAS_IOMEM 1763 help 1764 If you say yes here you get support for the EPSON TOYOCOM 1765 RTC-7301SF/DG chips. 1766 1767 This driver can also be built as a module. If so, the module 1768 will be called rtc-r7301. 1769 1770config RTC_DRV_STM32 1771 tristate "STM32 RTC" 1772 select REGMAP_MMIO 1773 depends on ARCH_STM32 || COMPILE_TEST 1774 help 1775 If you say yes here you get support for the STM32 On-Chip 1776 Real Time Clock. 1777 1778 This driver can also be built as a module, if so, the module 1779 will be called "rtc-stm32". 1780 1781config RTC_DRV_CPCAP 1782 depends on MFD_CPCAP 1783 tristate "Motorola CPCAP RTC" 1784 help 1785 Say y here for CPCAP rtc found on some Motorola phones 1786 and tablets such as Droid 4. 1787 1788config RTC_DRV_RTD119X 1789 bool "Realtek RTD129x RTC" 1790 depends on ARCH_REALTEK || COMPILE_TEST 1791 default ARCH_REALTEK 1792 help 1793 If you say yes here, you get support for the RTD1295 SoC 1794 Real Time Clock. 1795 1796comment "HID Sensor RTC drivers" 1797 1798config RTC_DRV_HID_SENSOR_TIME 1799 tristate "HID Sensor Time" 1800 depends on USB_HID 1801 select IIO 1802 select HID_SENSOR_HUB 1803 select HID_SENSOR_IIO_COMMON 1804 help 1805 Say yes here to build support for the HID Sensors of type Time. 1806 This drivers makes such sensors available as RTCs. 1807 1808 If this driver is compiled as a module, it will be named 1809 rtc-hid-sensor-time. 1810 1811config RTC_DRV_GOLDFISH 1812 tristate "Goldfish Real Time Clock" 1813 depends on MIPS && (GOLDFISH || COMPILE_TEST) 1814 help 1815 Say yes to enable RTC driver for the Goldfish based virtual platform. 1816 1817 Goldfish is a code name for the virtual platform developed by Google 1818 for Android emulation. 1819 1820endif # RTC_CLASS 1821