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_ABEOZ9 189 select REGMAP_I2C 190 tristate "Abracon AB-RTCMC-32.768kHz-EOZ9" 191 help 192 If you say yes here you get support for the Abracon 193 AB-RTCMC-32.768kHz-EOA9 I2C RTC chip. 194 195 This driver can also be built as a module. If so, the module 196 will be called rtc-ab-e0z9. 197 198config RTC_DRV_ABX80X 199 tristate "Abracon ABx80x" 200 select WATCHDOG_CORE if WATCHDOG 201 help 202 If you say yes here you get support for Abracon AB080X and AB180X 203 families of ultra-low-power battery- and capacitor-backed real-time 204 clock chips. 205 206 This driver can also be built as a module. If so, the module 207 will be called rtc-abx80x. 208 209config RTC_DRV_AC100 210 tristate "X-Powers AC100" 211 depends on MFD_AC100 212 help 213 If you say yes here you get support for the real-time clock found 214 in X-Powers AC100 family peripheral ICs. 215 216 This driver can also be built as a module. If so, the module 217 will be called rtc-ac100. 218 219config RTC_DRV_BRCMSTB 220 tristate "Broadcom STB wake-timer" 221 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 222 default ARCH_BRCMSTB || BMIPS_GENERIC 223 help 224 If you say yes here you get support for the wake-timer found on 225 Broadcom STB SoCs (BCM7xxx). 226 227 This driver can also be built as a module. If so, the module will 228 be called rtc-brcmstb-waketimer. 229 230config RTC_DRV_AS3722 231 tristate "ams AS3722 RTC driver" 232 depends on MFD_AS3722 233 help 234 If you say yes here you get support for the RTC of ams AS3722 PMIC 235 chips. 236 237 This driver can also be built as a module. If so, the module 238 will be called rtc-as3722. 239 240config RTC_DRV_DS1307 241 tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057" 242 help 243 If you say yes here you get support for various compatible RTC 244 chips (often with battery backup) connected with I2C. This driver 245 should handle DS1307, DS1337, DS1338, DS1339, DS1340, DS1341, 246 ST M41T00, EPSON RX-8025, Intersil ISL12057 and probably other chips. 247 In some cases the RTC must already have been initialized (by 248 manufacturing or a bootloader). 249 250 The first seven registers on these chips hold an RTC, and other 251 registers may add features such as NVRAM, a trickle charger for 252 the RTC/NVRAM backup power, and alarms. NVRAM is visible in 253 sysfs, but other chip features may not be available. 254 255 This driver can also be built as a module. If so, the module 256 will be called rtc-ds1307. 257 258config RTC_DRV_DS1307_CENTURY 259 bool "Century bit support for rtc-ds1307" 260 depends on RTC_DRV_DS1307 261 default n 262 help 263 The DS1307 driver suffered from a bug where it was enabling the 264 century bit inconditionnally but never used it when reading the time. 265 It made the driver unable to support dates beyond 2099. 266 Setting this option will add proper support for the century bit but if 267 the time was previously set using a kernel predating this option, 268 reading the date will return a date in the next century. 269 To solve that, you could boot a kernel without this option set, set 270 the RTC date and then boot a kernel with this option set. 271 272config RTC_DRV_DS1374 273 tristate "Dallas/Maxim DS1374" 274 help 275 If you say yes here you get support for Dallas Semiconductor 276 DS1374 real-time clock chips. If an interrupt is associated 277 with the device, the alarm functionality is supported. 278 279 This driver can also be built as a module. If so, the module 280 will be called rtc-ds1374. 281 282config RTC_DRV_DS1374_WDT 283 bool "Dallas/Maxim DS1374 watchdog timer" 284 depends on RTC_DRV_DS1374 285 help 286 If you say Y here you will get support for the 287 watchdog timer in the Dallas Semiconductor DS1374 288 real-time clock chips. 289 290config RTC_DRV_DS1672 291 tristate "Dallas/Maxim DS1672" 292 help 293 If you say yes here you get support for the 294 Dallas/Maxim DS1672 timekeeping chip. 295 296 This driver can also be built as a module. If so, the module 297 will be called rtc-ds1672. 298 299config RTC_DRV_HYM8563 300 tristate "Haoyu Microelectronics HYM8563" 301 depends on OF 302 help 303 Say Y to enable support for the HYM8563 I2C RTC chip. Apart 304 from the usual rtc functions it provides a clock output of 305 up to 32kHz. 306 307 This driver can also be built as a module. If so, the module 308 will be called rtc-hym8563. 309 310config RTC_DRV_LP8788 311 tristate "TI LP8788 RTC driver" 312 depends on MFD_LP8788 313 help 314 Say Y to enable support for the LP8788 RTC/ALARM driver. 315 316config RTC_DRV_MAX6900 317 tristate "Maxim MAX6900" 318 help 319 If you say yes here you will get support for the 320 Maxim MAX6900 I2C RTC chip. 321 322 This driver can also be built as a module. If so, the module 323 will be called rtc-max6900. 324 325config RTC_DRV_MAX8907 326 tristate "Maxim MAX8907" 327 depends on MFD_MAX8907 || COMPILE_TEST 328 help 329 If you say yes here you will get support for the 330 RTC of Maxim MAX8907 PMIC. 331 332 This driver can also be built as a module. If so, the module 333 will be called rtc-max8907. 334 335config RTC_DRV_MAX8925 336 tristate "Maxim MAX8925" 337 depends on MFD_MAX8925 338 help 339 If you say yes here you will get support for the 340 RTC of Maxim MAX8925 PMIC. 341 342 This driver can also be built as a module. If so, the module 343 will be called rtc-max8925. 344 345config RTC_DRV_MAX8998 346 tristate "Maxim MAX8998" 347 depends on MFD_MAX8998 348 help 349 If you say yes here you will get support for the 350 RTC of Maxim MAX8998 PMIC. 351 352 This driver can also be built as a module. If so, the module 353 will be called rtc-max8998. 354 355config RTC_DRV_MAX8997 356 tristate "Maxim MAX8997" 357 depends on MFD_MAX8997 358 help 359 If you say yes here you will get support for the 360 RTC of Maxim MAX8997 PMIC. 361 362 This driver can also be built as a module. If so, the module 363 will be called rtc-max8997. 364 365config RTC_DRV_MAX77686 366 tristate "Maxim MAX77686" 367 depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST 368 help 369 If you say yes here you will get support for the 370 RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC. 371 372 This driver can also be built as a module. If so, the module 373 will be called rtc-max77686. 374 375config RTC_DRV_RK808 376 tristate "Rockchip RK805/RK808/RK818 RTC" 377 depends on MFD_RK808 378 help 379 If you say yes here you will get support for the 380 RTC of RK805, RK808 and RK818 PMIC. 381 382 This driver can also be built as a module. If so, the module 383 will be called rk808-rtc. 384 385config RTC_DRV_RS5C372 386 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A" 387 help 388 If you say yes here you get support for the 389 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. 390 391 This driver can also be built as a module. If so, the module 392 will be called rtc-rs5c372. 393 394config RTC_DRV_ISL1208 395 tristate "Intersil ISL1208" 396 help 397 If you say yes here you get support for the 398 Intersil ISL1208 RTC chip. 399 400 This driver can also be built as a module. If so, the module 401 will be called rtc-isl1208. 402 403config RTC_DRV_ISL12022 404 tristate "Intersil ISL12022" 405 help 406 If you say yes here you get support for the 407 Intersil ISL12022 RTC chip. 408 409 This driver can also be built as a module. If so, the module 410 will be called rtc-isl12022. 411 412config RTC_DRV_ISL12026 413 tristate "Intersil ISL12026" 414 depends on OF || COMPILE_TEST 415 help 416 If you say yes here you get support for the 417 Intersil ISL12026 RTC chip. 418 419 This driver can also be built as a module. If so, the module 420 will be called rtc-isl12026. 421 422config RTC_DRV_X1205 423 tristate "Xicor/Intersil X1205" 424 help 425 If you say yes here you get support for the 426 Xicor/Intersil X1205 RTC chip. 427 428 This driver can also be built as a module. If so, the module 429 will be called rtc-x1205. 430 431config RTC_DRV_PCF8523 432 tristate "NXP PCF8523" 433 help 434 If you say yes here you get support for the NXP PCF8523 RTC 435 chips. 436 437 This driver can also be built as a module. If so, the module 438 will be called rtc-pcf8523. 439 440config RTC_DRV_PCF85063 441 tristate "NXP PCF85063" 442 select REGMAP_I2C 443 help 444 If you say yes here you get support for the PCF85063 RTC chip 445 446 This driver can also be built as a module. If so, the module 447 will be called rtc-pcf85063. 448 449config RTC_DRV_PCF85363 450 tristate "NXP PCF85363" 451 select REGMAP_I2C 452 help 453 If you say yes here you get support for the PCF85363 RTC chip. 454 455 This driver can also be built as a module. If so, the module 456 will be called rtc-pcf85363. 457 458 The nvmem interface will be named pcf85363-#, where # is the 459 zero-based instance number. 460 461config RTC_DRV_PCF8563 462 tristate "Philips PCF8563/Epson RTC8564" 463 help 464 If you say yes here you get support for the 465 Philips PCF8563 RTC chip. The Epson RTC8564 466 should work as well. 467 468 This driver can also be built as a module. If so, the module 469 will be called rtc-pcf8563. 470 471config RTC_DRV_PCF8583 472 tristate "Philips PCF8583" 473 help 474 If you say yes here you get support for the Philips PCF8583 475 RTC chip found on Acorn RiscPCs. This driver supports the 476 platform specific method of retrieving the current year from 477 the RTC's SRAM. It will work on other platforms with the same 478 chip, but the year will probably have to be tweaked. 479 480 This driver can also be built as a module. If so, the module 481 will be called rtc-pcf8583. 482 483config RTC_DRV_M41T80 484 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible" 485 help 486 If you say Y here you will get support for the ST M41T60 487 and M41T80 RTC chips series. Currently, the following chips are 488 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84, 489 M41ST85, M41ST87, and MicroCrystal RV4162. 490 491 This driver can also be built as a module. If so, the module 492 will be called rtc-m41t80. 493 494config RTC_DRV_M41T80_WDT 495 bool "ST M41T65/M41T80 series RTC watchdog timer" 496 depends on RTC_DRV_M41T80 497 help 498 If you say Y here you will get support for the 499 watchdog timer in the ST M41T60 and M41T80 RTC chips series. 500 501config RTC_DRV_BQ32K 502 tristate "TI BQ32000" 503 help 504 If you say Y here you will get support for the TI 505 BQ32000 I2C RTC chip. 506 507 This driver can also be built as a module. If so, the module 508 will be called rtc-bq32k. 509 510config RTC_DRV_DM355EVM 511 tristate "TI DaVinci DM355 EVM RTC" 512 depends on MFD_DM355EVM_MSP 513 help 514 Supports the RTC firmware in the MSP430 on the DM355 EVM. 515 516config RTC_DRV_TWL92330 517 bool "TI TWL92330/Menelaus" 518 depends on MENELAUS 519 help 520 If you say yes here you get support for the RTC on the 521 TWL92330 "Menelaus" power management chip, used with OMAP2 522 platforms. The support is integrated with the rest of 523 the Menelaus driver; it's not separate module. 524 525config RTC_DRV_TWL4030 526 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0" 527 depends on TWL4030_CORE 528 depends on OF 529 help 530 If you say yes here you get support for the RTC on the 531 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms. 532 533 This driver can also be built as a module. If so, the module 534 will be called rtc-twl. 535 536config RTC_DRV_PALMAS 537 tristate "TI Palmas RTC driver" 538 depends on MFD_PALMAS 539 help 540 If you say yes here you get support for the RTC of TI PALMA series PMIC 541 chips. 542 543 This driver can also be built as a module. If so, the module 544 will be called rtc-palma. 545 546config RTC_DRV_TPS6586X 547 tristate "TI TPS6586X RTC driver" 548 depends on MFD_TPS6586X 549 help 550 TI Power Management IC TPS6586X supports RTC functionality 551 along with alarm. This driver supports the RTC driver for 552 the TPS6586X RTC module. 553 554config RTC_DRV_TPS65910 555 tristate "TI TPS65910 RTC driver" 556 depends on RTC_CLASS && MFD_TPS65910 557 help 558 If you say yes here you get support for the RTC on the 559 TPS65910 chips. 560 561 This driver can also be built as a module. If so, the module 562 will be called rtc-tps65910. 563 564config RTC_DRV_TPS80031 565 tristate "TI TPS80031/TPS80032 RTC driver" 566 depends on MFD_TPS80031 567 help 568 TI Power Management IC TPS80031 supports RTC functionality 569 along with alarm. This driver supports the RTC driver for 570 the TPS80031 RTC module. 571 572config RTC_DRV_RC5T583 573 tristate "RICOH 5T583 RTC driver" 574 depends on MFD_RC5T583 575 help 576 If you say yes here you get support for the RTC on the 577 RICOH 5T583 chips. 578 579 This driver can also be built as a module. If so, the module 580 will be called rtc-rc5t583. 581 582config RTC_DRV_S35390A 583 tristate "Seiko Instruments S-35390A" 584 select BITREVERSE 585 help 586 If you say yes here you will get support for the Seiko 587 Instruments S-35390A. 588 589 This driver can also be built as a module. If so the module 590 will be called rtc-s35390a. 591 592config RTC_DRV_FM3130 593 tristate "Ramtron FM3130" 594 help 595 If you say Y here you will get support for the 596 Ramtron FM3130 RTC chips. 597 Ramtron FM3130 is a chip with two separate devices inside, 598 RTC clock and FRAM. This driver provides only RTC functionality. 599 600 This driver can also be built as a module. If so the module 601 will be called rtc-fm3130. 602 603config RTC_DRV_RX8010 604 tristate "Epson RX8010SJ" 605 help 606 If you say yes here you get support for the Epson RX8010SJ RTC 607 chip. 608 609 This driver can also be built as a module. If so, the module 610 will be called rtc-rx8010. 611 612config RTC_DRV_RX8581 613 tristate "Epson RX-8571/RX-8581" 614 help 615 If you say yes here you will get support for the Epson RX-8571/ 616 RX-8581. 617 618 This driver can also be built as a module. If so the module 619 will be called rtc-rx8581. 620 621config RTC_DRV_RX8025 622 tristate "Epson RX-8025SA/NB" 623 help 624 If you say yes here you get support for the Epson 625 RX-8025SA/NB RTC chips. 626 627 This driver can also be built as a module. If so, the module 628 will be called rtc-rx8025. 629 630config RTC_DRV_EM3027 631 tristate "EM Microelectronic EM3027" 632 help 633 If you say yes here you get support for the EM 634 Microelectronic EM3027 RTC chips. 635 636 This driver can also be built as a module. If so, the module 637 will be called rtc-em3027. 638 639config RTC_DRV_RV3028 640 tristate "Micro Crystal RV3028" 641 help 642 If you say yes here you get support for the Micro Crystal 643 RV3028. 644 645 This driver can also be built as a module. If so, the module 646 will be called rtc-rv3028. 647 648config RTC_DRV_RV8803 649 tristate "Micro Crystal RV8803, Epson RX8900" 650 help 651 If you say yes here you get support for the Micro Crystal RV8803 and 652 Epson RX8900 RTC chips. 653 654 This driver can also be built as a module. If so, the module 655 will be called rtc-rv8803. 656 657config RTC_DRV_S5M 658 tristate "Samsung S2M/S5M series" 659 depends on MFD_SEC_CORE || COMPILE_TEST 660 select REGMAP_IRQ 661 help 662 If you say yes here you will get support for the 663 RTC of Samsung S2MPS14 and S5M PMIC series. 664 665 This driver can also be built as a module. If so, the module 666 will be called rtc-s5m. 667 668config RTC_DRV_SD3078 669 tristate "ZXW Shenzhen whwave SD3078" 670 help 671 If you say yes here you get support for the ZXW Shenzhen whwave 672 SD3078 RTC chips. 673 674 This driver can also be built as a module. If so, the module 675 will be called rtc-sd3078 676 677endif # I2C 678 679comment "SPI RTC drivers" 680 681if SPI_MASTER 682 683config RTC_DRV_M41T93 684 tristate "ST M41T93" 685 help 686 If you say yes here you will get support for the 687 ST M41T93 SPI RTC chip. 688 689 This driver can also be built as a module. If so, the module 690 will be called rtc-m41t93. 691 692config RTC_DRV_M41T94 693 tristate "ST M41T94" 694 help 695 If you say yes here you will get support for the 696 ST M41T94 SPI RTC chip. 697 698 This driver can also be built as a module. If so, the module 699 will be called rtc-m41t94. 700 701config RTC_DRV_DS1302 702 tristate "Dallas/Maxim DS1302" 703 depends on SPI 704 help 705 If you say yes here you get support for the Dallas DS1302 RTC chips. 706 707 This driver can also be built as a module. If so, the module 708 will be called rtc-ds1302. 709 710config RTC_DRV_DS1305 711 tristate "Dallas/Maxim DS1305/DS1306" 712 help 713 Select this driver to get support for the Dallas/Maxim DS1305 714 and DS1306 real time clock chips. These support a trickle 715 charger, alarms, and NVRAM in addition to the clock. 716 717 This driver can also be built as a module. If so, the module 718 will be called rtc-ds1305. 719 720config RTC_DRV_DS1343 721 select REGMAP_SPI 722 tristate "Dallas/Maxim DS1343/DS1344" 723 help 724 If you say yes here you get support for the 725 Dallas/Maxim DS1343 and DS1344 real time clock chips. 726 Support for trickle charger, alarm is provided. 727 728 This driver can also be built as a module. If so, the module 729 will be called rtc-ds1343. 730 731config RTC_DRV_DS1347 732 select REGMAP_SPI 733 tristate "Dallas/Maxim DS1347" 734 help 735 If you say yes here you get support for the 736 Dallas/Maxim DS1347 chips. 737 738 This driver only supports the RTC feature, and not other chip 739 features such as alarms. 740 741 This driver can also be built as a module. If so, the module 742 will be called rtc-ds1347. 743 744config RTC_DRV_DS1390 745 tristate "Dallas/Maxim DS1390/93/94" 746 help 747 If you say yes here you get support for the 748 Dallas/Maxim DS1390/93/94 chips. 749 750 This driver supports the RTC feature and trickle charging but not 751 other chip features such as alarms. 752 753 This driver can also be built as a module. If so, the module 754 will be called rtc-ds1390. 755 756config RTC_DRV_MAX6916 757 tristate "Maxim MAX6916" 758 help 759 If you say yes here you will get support for the 760 Maxim MAX6916 SPI RTC chip. 761 762 This driver only supports the RTC feature, and not other chip 763 features such as alarms. 764 765 This driver can also be built as a module. If so, the module 766 will be called rtc-max6916. 767 768config RTC_DRV_R9701 769 tristate "Epson RTC-9701JE" 770 help 771 If you say yes here you will get support for the 772 Epson RTC-9701JE SPI RTC chip. 773 774 This driver can also be built as a module. If so, the module 775 will be called rtc-r9701. 776 777config RTC_DRV_RX4581 778 tristate "Epson RX-4581" 779 help 780 If you say yes here you will get support for the Epson RX-4581. 781 782 This driver can also be built as a module. If so the module 783 will be called rtc-rx4581. 784 785config RTC_DRV_RX6110 786 tristate "Epson RX-6110" 787 select REGMAP_SPI 788 help 789 If you say yes here you will get support for the Epson RX-6610. 790 791 This driver can also be built as a module. If so the module 792 will be called rtc-rx6110. 793 794config RTC_DRV_RS5C348 795 tristate "Ricoh RS5C348A/B" 796 help 797 If you say yes here you get support for the 798 Ricoh RS5C348A and RS5C348B RTC chips. 799 800 This driver can also be built as a module. If so, the module 801 will be called rtc-rs5c348. 802 803config RTC_DRV_MAX6902 804 tristate "Maxim MAX6902" 805 help 806 If you say yes here you will get support for the 807 Maxim MAX6902 SPI RTC chip. 808 809 This driver can also be built as a module. If so, the module 810 will be called rtc-max6902. 811 812config RTC_DRV_PCF2123 813 tristate "NXP PCF2123" 814 help 815 If you say yes here you get support for the NXP PCF2123 816 RTC chip. 817 818 This driver can also be built as a module. If so, the module 819 will be called rtc-pcf2123. 820 821config RTC_DRV_MCP795 822 tristate "Microchip MCP795" 823 help 824 If you say yes here you will get support for the Microchip MCP795. 825 826 This driver can also be built as a module. If so the module 827 will be called rtc-mcp795. 828 829endif # SPI_MASTER 830 831# 832# Helper to resolve issues with configs that have SPI enabled but I2C 833# modular. See SND_SOC_I2C_AND_SPI for more information 834# 835config RTC_I2C_AND_SPI 836 tristate 837 default m if I2C=m 838 default y if I2C=y 839 default y if SPI_MASTER=y 840 select REGMAP_I2C if I2C 841 select REGMAP_SPI if SPI_MASTER 842 843comment "SPI and I2C RTC drivers" 844 845config RTC_DRV_DS3232 846 tristate "Dallas/Maxim DS3232/DS3234" 847 depends on RTC_I2C_AND_SPI 848 help 849 If you say yes here you get support for Dallas Semiconductor 850 DS3232 and DS3234 real-time clock chips. If an interrupt is associated 851 with the device, the alarm functionality is supported. 852 853 This driver can also be built as a module. If so, the module 854 will be called rtc-ds3232. 855 856config RTC_DRV_DS3232_HWMON 857 bool "HWMON support for Dallas/Maxim DS3232/DS3234" 858 depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m) 859 default y 860 help 861 Say Y here if you want to expose temperature sensor data on 862 rtc-ds3232 863 864config RTC_DRV_PCF2127 865 tristate "NXP PCF2127" 866 depends on RTC_I2C_AND_SPI 867 help 868 If you say yes here you get support for the NXP PCF2127/29 RTC 869 chips. 870 871 This driver can also be built as a module. If so, the module 872 will be called rtc-pcf2127. 873 874config RTC_DRV_RV3029C2 875 tristate "Micro Crystal RV3029/3049" 876 depends on RTC_I2C_AND_SPI 877 help 878 If you say yes here you get support for the Micro Crystal 879 RV3029 and RV3049 RTC chips. 880 881 This driver can also be built as a module. If so, the module 882 will be called rtc-rv3029c2. 883 884config RTC_DRV_RV3029_HWMON 885 bool "HWMON support for RV3029/3049" 886 depends on RTC_DRV_RV3029C2 && HWMON 887 depends on !(RTC_DRV_RV3029C2=y && HWMON=m) 888 default y 889 help 890 Say Y here if you want to expose temperature sensor data on 891 rtc-rv3029. 892 893comment "Platform RTC drivers" 894 895# this 'CMOS' RTC driver is arch dependent because it requires 896# <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a 897# global rtc_lock ... it's not yet just another platform_device. 898 899config RTC_DRV_CMOS 900 tristate "PC-style 'CMOS'" 901 depends on X86 || ARM || PPC || MIPS || SPARC64 902 default y if X86 903 select RTC_MC146818_LIB 904 help 905 Say "yes" here to get direct support for the real time clock 906 found in every PC or ACPI-based system, and some other boards. 907 Specifically the original MC146818, compatibles like those in 908 PC south bridges, the DS12887 or M48T86, some multifunction 909 or LPC bus chips, and so on. 910 911 Your system will need to define the platform device used by 912 this driver, otherwise it won't be accessible. This means 913 you can safely enable this driver if you don't know whether 914 or not your board has this kind of hardware. 915 916 This driver can also be built as a module. If so, the module 917 will be called rtc-cmos. 918 919config RTC_DRV_ALPHA 920 bool "Alpha PC-style CMOS" 921 depends on ALPHA 922 select RTC_MC146818_LIB 923 default y 924 help 925 Direct support for the real-time clock found on every Alpha 926 system, specifically MC146818 compatibles. If in doubt, say Y. 927 928config RTC_DRV_VRTC 929 tristate "Virtual RTC for Intel MID platforms" 930 depends on X86_INTEL_MID 931 default y if X86_INTEL_MID 932 933 help 934 Say "yes" here to get direct support for the real time clock 935 found on Moorestown platforms. The VRTC is a emulated RTC that 936 derives its clock source from a real RTC in the PMIC. The MC146818 937 style programming interface is mostly conserved, but any 938 updates are done via IPC calls to the system controller FW. 939 940config RTC_DRV_DS1216 941 tristate "Dallas DS1216" 942 depends on SNI_RM 943 help 944 If you say yes here you get support for the Dallas DS1216 RTC chips. 945 946config RTC_DRV_DS1286 947 tristate "Dallas DS1286" 948 depends on HAS_IOMEM 949 help 950 If you say yes here you get support for the Dallas DS1286 RTC chips. 951 952config RTC_DRV_DS1511 953 tristate "Dallas DS1511" 954 depends on HAS_IOMEM 955 help 956 If you say yes here you get support for the 957 Dallas DS1511 timekeeping/watchdog chip. 958 959 This driver can also be built as a module. If so, the module 960 will be called rtc-ds1511. 961 962config RTC_DRV_DS1553 963 tristate "Maxim/Dallas DS1553" 964 depends on HAS_IOMEM 965 help 966 If you say yes here you get support for the 967 Maxim/Dallas DS1553 timekeeping chip. 968 969 This driver can also be built as a module. If so, the module 970 will be called rtc-ds1553. 971 972config RTC_DRV_DS1685_FAMILY 973 tristate "Dallas/Maxim DS1685 Family" 974 help 975 If you say yes here you get support for the Dallas/Maxim DS1685 976 family of real time chips. This family includes the DS1685/DS1687, 977 DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and 978 DS17885/DS17887 chips. 979 980 This driver can also be built as a module. If so, the module 981 will be called rtc-ds1685. 982 983choice 984 prompt "Subtype" 985 depends on RTC_DRV_DS1685_FAMILY 986 default RTC_DRV_DS1685 987 988config RTC_DRV_DS1685 989 bool "DS1685/DS1687" 990 help 991 This enables support for the Dallas/Maxim DS1685/DS1687 real time 992 clock chip. 993 994 This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30) 995 systems, as well as EPPC-405-UC modules by electronic system design 996 GmbH. 997 998config RTC_DRV_DS1689 999 bool "DS1689/DS1693" 1000 help 1001 This enables support for the Dallas/Maxim DS1689/DS1693 real time 1002 clock chip. 1003 1004 This is an older RTC chip, supplanted by the DS1685/DS1687 above, 1005 which supports a few minor features such as Vcc, Vbat, and Power 1006 Cycle counters, plus a customer-specific, 8-byte ROM/Serial number. 1007 1008 It also works for the even older DS1688/DS1691 RTC chips, which are 1009 virtually the same and carry the same model number. Both chips 1010 have 114 bytes of user NVRAM. 1011 1012config RTC_DRV_DS17285 1013 bool "DS17285/DS17287" 1014 help 1015 This enables support for the Dallas/Maxim DS17285/DS17287 real time 1016 clock chip. 1017 1018 This chip features 2kb of extended NV-SRAM. It may possibly be 1019 found in some SGI O2 systems (rare). 1020 1021config RTC_DRV_DS17485 1022 bool "DS17485/DS17487" 1023 help 1024 This enables support for the Dallas/Maxim DS17485/DS17487 real time 1025 clock chip. 1026 1027 This chip features 4kb of extended NV-SRAM. 1028 1029config RTC_DRV_DS17885 1030 bool "DS17885/DS17887" 1031 help 1032 This enables support for the Dallas/Maxim DS17885/DS17887 real time 1033 clock chip. 1034 1035 This chip features 8kb of extended NV-SRAM. 1036 1037endchoice 1038 1039config RTC_DRV_DS1742 1040 tristate "Maxim/Dallas DS1742/1743" 1041 depends on HAS_IOMEM 1042 help 1043 If you say yes here you get support for the 1044 Maxim/Dallas DS1742/1743 timekeeping chip. 1045 1046 This driver can also be built as a module. If so, the module 1047 will be called rtc-ds1742. 1048 1049config RTC_DRV_DS2404 1050 tristate "Maxim/Dallas DS2404" 1051 help 1052 If you say yes here you get support for the 1053 Dallas DS2404 RTC chip. 1054 1055 This driver can also be built as a module. If so, the module 1056 will be called rtc-ds2404. 1057 1058config RTC_DRV_DA9052 1059 tristate "Dialog DA9052/DA9053 RTC" 1060 depends on PMIC_DA9052 1061 help 1062 Say y here to support the RTC driver for Dialog Semiconductor 1063 DA9052-BC and DA9053-AA/Bx PMICs. 1064 1065config RTC_DRV_DA9055 1066 tristate "Dialog Semiconductor DA9055 RTC" 1067 depends on MFD_DA9055 1068 help 1069 If you say yes here you will get support for the 1070 RTC of the Dialog DA9055 PMIC. 1071 1072 This driver can also be built as a module. If so, the module 1073 will be called rtc-da9055 1074 1075config RTC_DRV_DA9063 1076 tristate "Dialog Semiconductor DA9063/DA9062 RTC" 1077 depends on MFD_DA9063 || MFD_DA9062 1078 help 1079 If you say yes here you will get support for the RTC subsystem 1080 for the Dialog Semiconductor PMIC chips DA9063 and DA9062. 1081 1082 This driver can also be built as a module. If so, the module 1083 will be called "rtc-da9063". 1084 1085config RTC_DRV_EFI 1086 tristate "EFI RTC" 1087 depends on EFI && !X86 1088 help 1089 If you say yes here you will get support for the EFI 1090 Real Time Clock. 1091 1092 This driver can also be built as a module. If so, the module 1093 will be called rtc-efi. 1094 1095config RTC_DRV_STK17TA8 1096 tristate "Simtek STK17TA8" 1097 depends on HAS_IOMEM 1098 help 1099 If you say yes here you get support for the 1100 Simtek STK17TA8 timekeeping chip. 1101 1102 This driver can also be built as a module. If so, the module 1103 will be called rtc-stk17ta8. 1104 1105config RTC_DRV_M48T86 1106 tristate "ST M48T86/Dallas DS12887" 1107 help 1108 If you say Y here you will get support for the 1109 ST M48T86 and Dallas DS12887 RTC chips. 1110 1111 This driver can also be built as a module. If so, the module 1112 will be called rtc-m48t86. 1113 1114config RTC_DRV_M48T35 1115 tristate "ST M48T35" 1116 depends on HAS_IOMEM 1117 help 1118 If you say Y here you will get support for the 1119 ST M48T35 RTC chip. 1120 1121 This driver can also be built as a module, if so, the module 1122 will be called "rtc-m48t35". 1123 1124config RTC_DRV_M48T59 1125 tristate "ST M48T59/M48T08/M48T02" 1126 depends on HAS_IOMEM 1127 help 1128 If you say Y here you will get support for the 1129 ST M48T59 RTC chip and compatible ST M48T08 and M48T02. 1130 1131 These chips are usually found in Sun SPARC and UltraSPARC 1132 workstations. 1133 1134 This driver can also be built as a module, if so, the module 1135 will be called "rtc-m48t59". 1136 1137config RTC_DRV_MSM6242 1138 tristate "Oki MSM6242" 1139 depends on HAS_IOMEM 1140 help 1141 If you say yes here you get support for the Oki MSM6242 1142 timekeeping chip. It is used in some Amiga models (e.g. A2000). 1143 1144 This driver can also be built as a module. If so, the module 1145 will be called rtc-msm6242. 1146 1147config RTC_DRV_BQ4802 1148 tristate "TI BQ4802" 1149 depends on HAS_IOMEM 1150 help 1151 If you say Y here you will get support for the TI 1152 BQ4802 RTC chip. 1153 1154 This driver can also be built as a module. If so, the module 1155 will be called rtc-bq4802. 1156 1157config RTC_DRV_RP5C01 1158 tristate "Ricoh RP5C01" 1159 depends on HAS_IOMEM 1160 help 1161 If you say yes here you get support for the Ricoh RP5C01 1162 timekeeping chip. It is used in some Amiga models (e.g. A3000 1163 and A4000). 1164 1165 This driver can also be built as a module. If so, the module 1166 will be called rtc-rp5c01. 1167 1168config RTC_DRV_V3020 1169 tristate "EM Microelectronic V3020" 1170 help 1171 If you say yes here you will get support for the 1172 EM Microelectronic v3020 RTC chip. 1173 1174 This driver can also be built as a module. If so, the module 1175 will be called rtc-v3020. 1176 1177config RTC_DRV_WM831X 1178 tristate "Wolfson Microelectronics WM831x RTC" 1179 depends on MFD_WM831X 1180 help 1181 If you say yes here you will get support for the RTC subsystem 1182 of the Wolfson Microelectronics WM831X series PMICs. 1183 1184 This driver can also be built as a module. If so, the module 1185 will be called "rtc-wm831x". 1186 1187config RTC_DRV_WM8350 1188 tristate "Wolfson Microelectronics WM8350 RTC" 1189 depends on MFD_WM8350 1190 help 1191 If you say yes here you will get support for the RTC subsystem 1192 of the Wolfson Microelectronics WM8350. 1193 1194 This driver can also be built as a module. If so, the module 1195 will be called "rtc-wm8350". 1196 1197config RTC_DRV_SC27XX 1198 tristate "Spreadtrum SC27xx RTC" 1199 depends on MFD_SC27XX_PMIC || COMPILE_TEST 1200 help 1201 If you say Y here you will get support for the RTC subsystem 1202 of the Spreadtrum SC27xx series PMICs. The SC27xx series PMICs 1203 includes the SC2720, SC2721, SC2723, SC2730 and SC2731 chips. 1204 1205 This driver can also be built as a module. If so, the module 1206 will be called rtc-sc27xx. 1207 1208config RTC_DRV_SPEAR 1209 tristate "SPEAR ST RTC" 1210 depends on PLAT_SPEAR || COMPILE_TEST 1211 default y 1212 help 1213 If you say Y here you will get support for the RTC found on 1214 spear 1215 1216config RTC_DRV_PCF50633 1217 depends on MFD_PCF50633 1218 tristate "NXP PCF50633 RTC" 1219 help 1220 If you say yes here you get support for the RTC subsystem of the 1221 NXP PCF50633 used in embedded systems. 1222 1223config RTC_DRV_AB3100 1224 tristate "ST-Ericsson AB3100 RTC" 1225 depends on AB3100_CORE 1226 default y if AB3100_CORE 1227 help 1228 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC 1229 support. This chip contains a battery- and capacitor-backed RTC. 1230 1231config RTC_DRV_AB8500 1232 tristate "ST-Ericsson AB8500 RTC" 1233 depends on AB8500_CORE 1234 select RTC_INTF_DEV 1235 select RTC_INTF_DEV_UIE_EMUL 1236 help 1237 Select this to enable the ST-Ericsson AB8500 power management IC RTC 1238 support. This chip contains a battery- and capacitor-backed RTC. 1239 1240config RTC_DRV_NUC900 1241 tristate "NUC910/NUC920 RTC driver" 1242 depends on ARCH_W90X900 || COMPILE_TEST 1243 help 1244 If you say yes here you get support for the RTC subsystem of the 1245 NUC910/NUC920 used in embedded systems. 1246 1247config RTC_DRV_OPAL 1248 tristate "IBM OPAL RTC driver" 1249 depends on PPC_POWERNV 1250 default y 1251 help 1252 If you say yes here you get support for the PowerNV platform RTC 1253 driver based on OPAL interfaces. 1254 1255 This driver can also be built as a module. If so, the module 1256 will be called rtc-opal. 1257 1258config RTC_DRV_ZYNQMP 1259 tristate "Xilinx Zynq Ultrascale+ MPSoC RTC" 1260 depends on OF 1261 help 1262 If you say yes here you get support for the RTC controller found on 1263 Xilinx Zynq Ultrascale+ MPSoC. 1264 1265config RTC_DRV_CROS_EC 1266 tristate "Chrome OS EC RTC driver" 1267 depends on MFD_CROS_EC 1268 help 1269 If you say yes here you will get support for the 1270 Chrome OS Embedded Controller's RTC. 1271 1272 This driver can also be built as a module. If so, the module 1273 will be called rtc-cros-ec. 1274 1275comment "on-CPU RTC drivers" 1276 1277config RTC_DRV_ASM9260 1278 tristate "Alphascale asm9260 RTC" 1279 depends on MACH_ASM9260 || COMPILE_TEST 1280 help 1281 If you say yes here you get support for the RTC on the 1282 Alphascale asm9260 SoC. 1283 1284 This driver can also be built as a module. If so, the module 1285 will be called rtc-asm9260. 1286 1287config RTC_DRV_DAVINCI 1288 tristate "TI DaVinci RTC" 1289 depends on ARCH_DAVINCI_DM365 || COMPILE_TEST 1290 help 1291 If you say yes here you get support for the RTC on the 1292 DaVinci platforms (DM365). 1293 1294 This driver can also be built as a module. If so, the module 1295 will be called rtc-davinci. 1296 1297config RTC_DRV_DIGICOLOR 1298 tristate "Conexant Digicolor RTC" 1299 depends on ARCH_DIGICOLOR || COMPILE_TEST 1300 help 1301 If you say yes here you get support for the RTC on Conexant 1302 Digicolor platforms. This currently includes the CX92755 SoC. 1303 1304 This driver can also be built as a module. If so, the module 1305 will be called rtc-digicolor. 1306 1307config RTC_DRV_IMXDI 1308 tristate "Freescale IMX DryIce Real Time Clock" 1309 depends on ARCH_MXC 1310 help 1311 Support for Freescale IMX DryIce RTC 1312 1313 This driver can also be built as a module, if so, the module 1314 will be called "rtc-imxdi". 1315 1316config RTC_DRV_MESON 1317 tristate "Amlogic Meson RTC" 1318 depends on (ARM && ARCH_MESON) || COMPILE_TEST 1319 select REGMAP_MMIO 1320 help 1321 Support for the RTC block on the Amlogic Meson6, Meson8, Meson8b 1322 and Meson8m2 SoCs. 1323 1324 This driver can also be built as a module, if so, the module 1325 will be called "rtc-meson". 1326 1327config RTC_DRV_OMAP 1328 tristate "TI OMAP Real Time Clock" 1329 depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST 1330 depends on OF 1331 depends on PINCTRL 1332 select GENERIC_PINCONF 1333 help 1334 Say "yes" here to support the on chip real time clock 1335 present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx. 1336 1337 This driver can also be built as a module, if so, module 1338 will be called rtc-omap. 1339 1340config HAVE_S3C_RTC 1341 bool 1342 help 1343 This will include RTC support for Samsung SoCs. If 1344 you want to include RTC support for any machine, kindly 1345 select this in the respective mach-XXXX/Kconfig file. 1346 1347config RTC_DRV_S3C 1348 tristate "Samsung S3C series SoC RTC" 1349 depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST 1350 help 1351 RTC (Realtime Clock) driver for the clock inbuilt into the 1352 Samsung S3C24XX series of SoCs. This can provide periodic 1353 interrupt rates from 1Hz to 64Hz for user programs, and 1354 wakeup from Alarm. 1355 1356 The driver currently supports the common features on all the 1357 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440 1358 and S3C2442. 1359 1360 This driver can also be build as a module. If so, the module 1361 will be called rtc-s3c. 1362 1363config RTC_DRV_EP93XX 1364 tristate "Cirrus Logic EP93XX" 1365 depends on ARCH_EP93XX || COMPILE_TEST 1366 help 1367 If you say yes here you get support for the 1368 RTC embedded in the Cirrus Logic EP93XX processors. 1369 1370 This driver can also be built as a module. If so, the module 1371 will be called rtc-ep93xx. 1372 1373config RTC_DRV_SA1100 1374 tristate "SA11x0/PXA2xx/PXA910" 1375 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP 1376 help 1377 If you say Y here you will get access to the real time clock 1378 built into your SA11x0 or PXA2xx CPU. 1379 1380 To compile this driver as a module, choose M here: the 1381 module will be called rtc-sa1100. 1382 1383config RTC_DRV_SH 1384 tristate "SuperH On-Chip RTC" 1385 depends on SUPERH || ARCH_RENESAS 1386 help 1387 Say Y here to enable support for the on-chip RTC found in 1388 most SuperH processors. This RTC is also found in RZ/A SoCs. 1389 1390 To compile this driver as a module, choose M here: the 1391 module will be called rtc-sh. 1392 1393config RTC_DRV_VR41XX 1394 tristate "NEC VR41XX" 1395 depends on CPU_VR41XX || COMPILE_TEST 1396 help 1397 If you say Y here you will get access to the real time clock 1398 built into your NEC VR41XX CPU. 1399 1400 To compile this driver as a module, choose M here: the 1401 module will be called rtc-vr41xx. 1402 1403config RTC_DRV_PL030 1404 tristate "ARM AMBA PL030 RTC" 1405 depends on ARM_AMBA 1406 help 1407 If you say Y here you will get access to ARM AMBA 1408 PrimeCell PL030 RTC found on certain ARM SOCs. 1409 1410 To compile this driver as a module, choose M here: the 1411 module will be called rtc-pl030. 1412 1413config RTC_DRV_PL031 1414 tristate "ARM AMBA PL031 RTC" 1415 depends on ARM_AMBA 1416 help 1417 If you say Y here you will get access to ARM AMBA 1418 PrimeCell PL031 RTC found on certain ARM SOCs. 1419 1420 To compile this driver as a module, choose M here: the 1421 module will be called rtc-pl031. 1422 1423config RTC_DRV_AT91RM9200 1424 tristate "AT91RM9200 or some AT91SAM9 RTC" 1425 depends on ARCH_AT91 || COMPILE_TEST 1426 help 1427 Driver for the internal RTC (Realtime Clock) module found on 1428 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips 1429 this is powered by the backup power supply. 1430 1431config RTC_DRV_AT91SAM9 1432 tristate "AT91SAM9 RTT as RTC" 1433 depends on ARCH_AT91 || COMPILE_TEST 1434 depends on OF && HAS_IOMEM 1435 select MFD_SYSCON 1436 help 1437 Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which 1438 can be used as an RTC thanks to the backup power supply (e.g. a 1439 small coin cell battery) which keeps this block and the GPBR 1440 (General Purpose Backup Registers) block powered when the device 1441 is shutdown. 1442 Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd 1443 probably want to use the real RTC block instead of the "RTT as an 1444 RTC" driver. 1445 1446config RTC_DRV_AU1XXX 1447 tristate "Au1xxx Counter0 RTC support" 1448 depends on MIPS_ALCHEMY 1449 help 1450 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year 1451 counter) to be used as a RTC. 1452 1453 This driver can also be built as a module. If so, the module 1454 will be called rtc-au1xxx. 1455 1456config RTC_DRV_RS5C313 1457 tristate "Ricoh RS5C313" 1458 depends on SH_LANDISK 1459 help 1460 If you say yes here you get support for the Ricoh RS5C313 RTC chips. 1461 1462config RTC_DRV_GENERIC 1463 tristate "Generic RTC support" 1464 # Please consider writing a new RTC driver instead of using the generic 1465 # RTC abstraction 1466 depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST 1467 help 1468 Say Y or M here to enable RTC support on systems using the generic 1469 RTC abstraction. If you do not know what you are doing, you should 1470 just say Y. 1471 1472config RTC_DRV_PXA 1473 tristate "PXA27x/PXA3xx" 1474 depends on ARCH_PXA 1475 select RTC_DRV_SA1100 1476 help 1477 If you say Y here you will get access to the real time clock 1478 built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs 1479 consisting of an SA1100 compatible RTC and the extended PXA RTC. 1480 1481 This RTC driver uses PXA RTC registers available since pxa27x 1482 series (RDxR, RYxR) instead of legacy RCNR, RTAR. 1483 1484config RTC_DRV_VT8500 1485 tristate "VIA/WonderMedia 85xx SoC RTC" 1486 depends on ARCH_VT8500 || COMPILE_TEST 1487 help 1488 If you say Y here you will get access to the real time clock 1489 built into your VIA VT8500 SoC or its relatives. 1490 1491 1492config RTC_DRV_SUN4V 1493 bool "SUN4V Hypervisor RTC" 1494 depends on SPARC64 1495 help 1496 If you say Y here you will get support for the Hypervisor 1497 based RTC on SUN4V systems. 1498 1499config RTC_DRV_SUN6I 1500 bool "Allwinner A31 RTC" 1501 default MACH_SUN6I || MACH_SUN8I 1502 depends on COMMON_CLK 1503 depends on ARCH_SUNXI || COMPILE_TEST 1504 help 1505 If you say Y here you will get support for the RTC found in 1506 some Allwinner SoCs like the A31 or the A64. 1507 1508config RTC_DRV_SUNXI 1509 tristate "Allwinner sun4i/sun7i RTC" 1510 depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST 1511 help 1512 If you say Y here you will get support for the RTC found on 1513 Allwinner A10/A20. 1514 1515config RTC_DRV_STARFIRE 1516 bool "Starfire RTC" 1517 depends on SPARC64 1518 help 1519 If you say Y here you will get support for the RTC found on 1520 Starfire systems. 1521 1522config RTC_DRV_TX4939 1523 tristate "TX4939 SoC" 1524 depends on SOC_TX4939 || COMPILE_TEST 1525 help 1526 Driver for the internal RTC (Realtime Clock) module found on 1527 Toshiba TX4939 SoC. 1528 1529config RTC_DRV_MV 1530 tristate "Marvell SoC RTC" 1531 depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST 1532 help 1533 If you say yes here you will get support for the in-chip RTC 1534 that can be found in some of Marvell's SoC devices, such as 1535 the Kirkwood 88F6281 and 88F6192. 1536 1537 This driver can also be built as a module. If so, the module 1538 will be called rtc-mv. 1539 1540config RTC_DRV_ARMADA38X 1541 tristate "Armada 38x Marvell SoC RTC" 1542 depends on ARCH_MVEBU || COMPILE_TEST 1543 help 1544 If you say yes here you will get support for the in-chip RTC 1545 that can be found in the Armada 38x Marvell's SoC device 1546 1547 This driver can also be built as a module. If so, the module 1548 will be called armada38x-rtc. 1549 1550config RTC_DRV_CADENCE 1551 tristate "Cadence RTC driver" 1552 depends on OF && HAS_IOMEM 1553 help 1554 If you say Y here you will get access to Cadence RTC IP 1555 found on certain SOCs. 1556 1557 To compile this driver as a module, choose M here: the 1558 module will be called rtc-cadence. 1559 1560config RTC_DRV_FTRTC010 1561 tristate "Faraday Technology FTRTC010 RTC" 1562 depends on HAS_IOMEM 1563 default ARCH_GEMINI 1564 help 1565 If you say Y here you will get support for the 1566 Faraday Technolog FTRTC010 found on e.g. Gemini SoC's. 1567 1568 This driver can also be built as a module. If so, the module 1569 will be called rtc-ftrtc010. 1570 1571config RTC_DRV_PS3 1572 tristate "PS3 RTC" 1573 depends on PPC_PS3 1574 help 1575 If you say yes here you will get support for the RTC on PS3. 1576 1577 This driver can also be built as a module. If so, the module 1578 will be called rtc-ps3. 1579 1580config RTC_DRV_COH901331 1581 tristate "ST-Ericsson COH 901 331 RTC" 1582 depends on ARCH_U300 || COMPILE_TEST 1583 help 1584 If you say Y here you will get access to ST-Ericsson 1585 COH 901 331 RTC clock found in some ST-Ericsson Mobile 1586 Platforms. 1587 1588 This driver can also be built as a module. If so, the module 1589 will be called "rtc-coh901331". 1590 1591 1592config RTC_DRV_STMP 1593 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC" 1594 depends on ARCH_MXS || COMPILE_TEST 1595 select STMP_DEVICE 1596 help 1597 If you say yes here you will get support for the onboard 1598 STMP3xxx/i.MX23/i.MX28 RTC. 1599 1600 This driver can also be built as a module. If so, the module 1601 will be called rtc-stmp3xxx. 1602 1603config RTC_DRV_PCAP 1604 tristate "PCAP RTC" 1605 depends on EZX_PCAP 1606 help 1607 If you say Y here you will get support for the RTC found on 1608 the PCAP2 ASIC used on some Motorola phones. 1609 1610config RTC_DRV_MC13XXX 1611 depends on MFD_MC13XXX 1612 tristate "Freescale MC13xxx RTC" 1613 help 1614 This enables support for the RTCs found on Freescale's PMICs 1615 MC13783 and MC13892. 1616 1617config RTC_DRV_MPC5121 1618 tristate "Freescale MPC5121 built-in RTC" 1619 depends on PPC_MPC512x || PPC_MPC52xx 1620 help 1621 If you say yes here you will get support for the 1622 built-in RTC on MPC5121 or on MPC5200. 1623 1624 This driver can also be built as a module. If so, the module 1625 will be called rtc-mpc5121. 1626 1627config RTC_DRV_JZ4740 1628 tristate "Ingenic JZ4740 SoC" 1629 depends on MIPS || COMPILE_TEST 1630 help 1631 If you say yes here you get support for the Ingenic JZ47xx SoCs RTC 1632 controllers. 1633 1634 This driver can also be built as a module. If so, the module 1635 will be called rtc-jz4740. 1636 1637config RTC_DRV_LPC24XX 1638 tristate "NXP RTC for LPC178x/18xx/408x/43xx" 1639 depends on ARCH_LPC18XX || COMPILE_TEST 1640 depends on OF && HAS_IOMEM 1641 help 1642 This enables support for the NXP RTC found which can be found on 1643 NXP LPC178x/18xx/408x/43xx devices. 1644 1645 If you have one of the devices above enable this driver to use 1646 the hardware RTC. This driver can also be built as a module. If 1647 so, the module will be called rtc-lpc24xx. 1648 1649config RTC_DRV_LPC32XX 1650 depends on ARCH_LPC32XX || COMPILE_TEST 1651 tristate "NXP LPC32XX RTC" 1652 help 1653 This enables support for the NXP RTC in the LPC32XX 1654 1655 This driver can also be built as a module. If so, the module 1656 will be called rtc-lpc32xx. 1657 1658config RTC_DRV_PM8XXX 1659 tristate "Qualcomm PMIC8XXX RTC" 1660 depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST 1661 help 1662 If you say yes here you get support for the 1663 Qualcomm PMIC8XXX RTC. 1664 1665 To compile this driver as a module, choose M here: the 1666 module will be called rtc-pm8xxx. 1667 1668config RTC_DRV_TEGRA 1669 tristate "NVIDIA Tegra Internal RTC driver" 1670 depends on ARCH_TEGRA || COMPILE_TEST 1671 help 1672 If you say yes here you get support for the 1673 Tegra 200 series internal RTC module. 1674 1675 This drive can also be built as a module. If so, the module 1676 will be called rtc-tegra. 1677 1678config RTC_DRV_PUV3 1679 tristate "PKUnity v3 RTC support" 1680 depends on ARCH_PUV3 1681 help 1682 This enables support for the RTC in the PKUnity-v3 SoCs. 1683 1684 This drive can also be built as a module. If so, the module 1685 will be called rtc-puv3. 1686 1687config RTC_DRV_LOONGSON1 1688 tristate "loongson1 RTC support" 1689 depends on MACH_LOONGSON32 1690 help 1691 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year 1692 counter) to be used as a RTC. 1693 1694 This driver can also be built as a module. If so, the module 1695 will be called rtc-ls1x. 1696 1697config RTC_DRV_MXC 1698 tristate "Freescale MXC Real Time Clock" 1699 depends on ARCH_MXC 1700 help 1701 If you say yes here you get support for the Freescale MXC 1702 RTC module. 1703 1704 This driver can also be built as a module, if so, the module 1705 will be called "rtc-mxc". 1706 1707config RTC_DRV_MXC_V2 1708 tristate "Freescale MXC Real Time Clock for i.MX53" 1709 depends on ARCH_MXC 1710 help 1711 If you say yes here you get support for the Freescale MXC 1712 SRTC module in i.MX53 processor. 1713 1714 This driver can also be built as a module, if so, the module 1715 will be called "rtc-mxc_v2". 1716 1717config RTC_DRV_SNVS 1718 tristate "Freescale SNVS RTC support" 1719 select REGMAP_MMIO 1720 depends on HAS_IOMEM 1721 depends on OF 1722 help 1723 If you say yes here you get support for the Freescale SNVS 1724 Low Power (LP) RTC module. 1725 1726 This driver can also be built as a module, if so, the module 1727 will be called "rtc-snvs". 1728 1729config RTC_DRV_IMX_SC 1730 depends on IMX_SCU 1731 depends on HAVE_ARM_SMCCC 1732 tristate "NXP i.MX System Controller RTC support" 1733 help 1734 If you say yes here you get support for the NXP i.MX System 1735 Controller RTC module. 1736 1737config RTC_DRV_SIRFSOC 1738 tristate "SiRFSOC RTC" 1739 depends on ARCH_SIRF 1740 help 1741 Say "yes" here to support the real time clock on SiRF SOC chips. 1742 This driver can also be built as a module called rtc-sirfsoc. 1743 1744config RTC_DRV_ST_LPC 1745 tristate "STMicroelectronics LPC RTC" 1746 depends on ARCH_STI 1747 depends on OF 1748 help 1749 Say Y here to include STMicroelectronics Low Power Controller 1750 (LPC) based RTC support. 1751 1752 To compile this driver as a module, choose M here: the 1753 module will be called rtc-st-lpc. 1754 1755config RTC_DRV_MOXART 1756 tristate "MOXA ART RTC" 1757 depends on ARCH_MOXART || COMPILE_TEST 1758 help 1759 If you say yes here you get support for the MOXA ART 1760 RTC module. 1761 1762 This driver can also be built as a module. If so, the module 1763 will be called rtc-moxart 1764 1765config RTC_DRV_MT6397 1766 tristate "MediaTek PMIC based RTC" 1767 depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN) 1768 help 1769 This selects the MediaTek(R) RTC driver. RTC is part of MediaTek 1770 MT6397 PMIC. You should enable MT6397 PMIC MFD before select 1771 MediaTek(R) RTC driver. 1772 1773 If you want to use MediaTek(R) RTC interface, select Y or M here. 1774 1775config RTC_DRV_MT7622 1776 tristate "MediaTek SoC based RTC" 1777 depends on ARCH_MEDIATEK || COMPILE_TEST 1778 help 1779 This enables support for the real time clock built in the MediaTek 1780 SoCs. 1781 1782 This drive can also be built as a module. If so, the module 1783 will be called rtc-mt7622. 1784 1785config RTC_DRV_XGENE 1786 tristate "APM X-Gene RTC" 1787 depends on HAS_IOMEM 1788 depends on ARCH_XGENE || COMPILE_TEST 1789 help 1790 If you say yes here you get support for the APM X-Gene SoC real time 1791 clock. 1792 1793 This driver can also be built as a module, if so, the module 1794 will be called "rtc-xgene". 1795 1796config RTC_DRV_PIC32 1797 tristate "Microchip PIC32 RTC" 1798 depends on MACH_PIC32 1799 default y 1800 help 1801 If you say yes here you get support for the PIC32 RTC module. 1802 1803 This driver can also be built as a module. If so, the module 1804 will be called rtc-pic32 1805 1806config RTC_DRV_R7301 1807 tristate "EPSON TOYOCOM RTC-7301SF/DG" 1808 select REGMAP_MMIO 1809 depends on OF && HAS_IOMEM 1810 help 1811 If you say yes here you get support for the EPSON TOYOCOM 1812 RTC-7301SF/DG chips. 1813 1814 This driver can also be built as a module. If so, the module 1815 will be called rtc-r7301. 1816 1817config RTC_DRV_STM32 1818 tristate "STM32 RTC" 1819 select REGMAP_MMIO 1820 depends on ARCH_STM32 || COMPILE_TEST 1821 help 1822 If you say yes here you get support for the STM32 On-Chip 1823 Real Time Clock. 1824 1825 This driver can also be built as a module, if so, the module 1826 will be called "rtc-stm32". 1827 1828config RTC_DRV_CPCAP 1829 depends on MFD_CPCAP 1830 tristate "Motorola CPCAP RTC" 1831 help 1832 Say y here for CPCAP rtc found on some Motorola phones 1833 and tablets such as Droid 4. 1834 1835config RTC_DRV_RTD119X 1836 bool "Realtek RTD129x RTC" 1837 depends on ARCH_REALTEK || COMPILE_TEST 1838 default ARCH_REALTEK 1839 help 1840 If you say yes here, you get support for the RTD1295 SoC 1841 Real Time Clock. 1842 1843config RTC_DRV_ASPEED 1844 tristate "ASPEED RTC" 1845 depends on OF 1846 depends on ARCH_ASPEED || COMPILE_TEST 1847 help 1848 If you say yes here you get support for the ASPEED BMC SoC real time 1849 clocks. 1850 1851 This driver can also be built as a module, if so, the module 1852 will be called "rtc-aspeed". 1853 1854comment "HID Sensor RTC drivers" 1855 1856config RTC_DRV_HID_SENSOR_TIME 1857 tristate "HID Sensor Time" 1858 depends on USB_HID 1859 depends on HID_SENSOR_HUB && IIO 1860 select HID_SENSOR_IIO_COMMON 1861 help 1862 Say yes here to build support for the HID Sensors of type Time. 1863 This drivers makes such sensors available as RTCs. 1864 1865 If this driver is compiled as a module, it will be named 1866 rtc-hid-sensor-time. 1867 1868config RTC_DRV_GOLDFISH 1869 tristate "Goldfish Real Time Clock" 1870 depends on OF && HAS_IOMEM 1871 depends on GOLDFISH || COMPILE_TEST 1872 help 1873 Say yes to enable RTC driver for the Goldfish based virtual platform. 1874 1875 Goldfish is a code name for the virtual platform developed by Google 1876 for Android emulation. 1877 1878config RTC_DRV_WILCO_EC 1879 tristate "Wilco EC RTC" 1880 depends on WILCO_EC 1881 default m 1882 help 1883 If you say yes here, you get read/write support for the Real Time 1884 Clock on the Wilco Embedded Controller (Wilco is a kind of Chromebook) 1885 1886 This can also be built as a module. If so, the module will 1887 be named "rtc_wilco_ec". 1888 1889endif # RTC_CLASS 1890