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_HWMON 248 bool "HWMON support for rtc-ds1307" 249 depends on RTC_DRV_DS1307 && HWMON 250 depends on !(RTC_DRV_DS1307=y && HWMON=m) 251 default y 252 help 253 Say Y here if you want to expose temperature sensor data on 254 rtc-ds1307 (only DS3231) 255 256config RTC_DRV_DS1307_CENTURY 257 bool "Century bit support for rtc-ds1307" 258 depends on RTC_DRV_DS1307 259 default n 260 help 261 The DS1307 driver suffered from a bug where it was enabling the 262 century bit inconditionnally but never used it when reading the time. 263 It made the driver unable to support dates beyond 2099. 264 Setting this option will add proper support for the century bit but if 265 the time was previously set using a kernel predating this option, 266 reading the date will return a date in the next century. 267 To solve that, you could boot a kernel without this option set, set 268 the RTC date and then boot a kernel with this option set. 269 270config RTC_DRV_DS1374 271 tristate "Dallas/Maxim DS1374" 272 help 273 If you say yes here you get support for Dallas Semiconductor 274 DS1374 real-time clock chips. If an interrupt is associated 275 with the device, the alarm functionality is supported. 276 277 This driver can also be built as a module. If so, the module 278 will be called rtc-ds1374. 279 280config RTC_DRV_DS1374_WDT 281 bool "Dallas/Maxim DS1374 watchdog timer" 282 depends on RTC_DRV_DS1374 283 help 284 If you say Y here you will get support for the 285 watchdog timer in the Dallas Semiconductor DS1374 286 real-time clock chips. 287 288config RTC_DRV_DS1672 289 tristate "Dallas/Maxim DS1672" 290 help 291 If you say yes here you get support for the 292 Dallas/Maxim DS1672 timekeeping chip. 293 294 This driver can also be built as a module. If so, the module 295 will be called rtc-ds1672. 296 297config RTC_DRV_HYM8563 298 tristate "Haoyu Microelectronics HYM8563" 299 depends on OF 300 help 301 Say Y to enable support for the HYM8563 I2C RTC chip. Apart 302 from the usual rtc functions it provides a clock output of 303 up to 32kHz. 304 305 This driver can also be built as a module. If so, the module 306 will be called rtc-hym8563. 307 308config RTC_DRV_LP8788 309 tristate "TI LP8788 RTC driver" 310 depends on MFD_LP8788 311 help 312 Say Y to enable support for the LP8788 RTC/ALARM driver. 313 314config RTC_DRV_MAX6900 315 tristate "Maxim MAX6900" 316 help 317 If you say yes here you will get support for the 318 Maxim MAX6900 I2C RTC chip. 319 320 This driver can also be built as a module. If so, the module 321 will be called rtc-max6900. 322 323config RTC_DRV_MAX8907 324 tristate "Maxim MAX8907" 325 depends on MFD_MAX8907 || COMPILE_TEST 326 select REGMAP_IRQ 327 help 328 If you say yes here you will get support for the 329 RTC of Maxim MAX8907 PMIC. 330 331 This driver can also be built as a module. If so, the module 332 will be called rtc-max8907. 333 334config RTC_DRV_MAX8925 335 tristate "Maxim MAX8925" 336 depends on MFD_MAX8925 337 help 338 If you say yes here you will get support for the 339 RTC of Maxim MAX8925 PMIC. 340 341 This driver can also be built as a module. If so, the module 342 will be called rtc-max8925. 343 344config RTC_DRV_MAX8998 345 tristate "Maxim MAX8998" 346 depends on MFD_MAX8998 347 help 348 If you say yes here you will get support for the 349 RTC of Maxim MAX8998 PMIC. 350 351 This driver can also be built as a module. If so, the module 352 will be called rtc-max8998. 353 354config RTC_DRV_MAX8997 355 tristate "Maxim MAX8997" 356 depends on MFD_MAX8997 357 help 358 If you say yes here you will get support for the 359 RTC of Maxim MAX8997 PMIC. 360 361 This driver can also be built as a module. If so, the module 362 will be called rtc-max8997. 363 364config RTC_DRV_MAX77686 365 tristate "Maxim MAX77686" 366 depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST 367 help 368 If you say yes here you will get support for the 369 RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC. 370 371 This driver can also be built as a module. If so, the module 372 will be called rtc-max77686. 373 374config RTC_DRV_RK808 375 tristate "Rockchip RK805/RK808/RK818 RTC" 376 depends on MFD_RK808 377 help 378 If you say yes here you will get support for the 379 RTC of RK805, RK808 and RK818 PMIC. 380 381 This driver can also be built as a module. If so, the module 382 will be called rk808-rtc. 383 384config RTC_DRV_RS5C372 385 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A" 386 help 387 If you say yes here you get support for the 388 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. 389 390 This driver can also be built as a module. If so, the module 391 will be called rtc-rs5c372. 392 393config RTC_DRV_ISL1208 394 tristate "Intersil ISL1208" 395 help 396 If you say yes here you get support for the 397 Intersil ISL1208 RTC chip. 398 399 This driver can also be built as a module. If so, the module 400 will be called rtc-isl1208. 401 402config RTC_DRV_ISL12022 403 tristate "Intersil ISL12022" 404 help 405 If you say yes here you get support for the 406 Intersil ISL12022 RTC chip. 407 408 This driver can also be built as a module. If so, the module 409 will be called rtc-isl12022. 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_PCF8563 438 tristate "Philips PCF8563/Epson RTC8564" 439 help 440 If you say yes here you get support for the 441 Philips PCF8563 RTC chip. The Epson RTC8564 442 should work as well. 443 444 This driver can also be built as a module. If so, the module 445 will be called rtc-pcf8563. 446 447config RTC_DRV_PCF8583 448 tristate "Philips PCF8583" 449 help 450 If you say yes here you get support for the Philips PCF8583 451 RTC chip found on Acorn RiscPCs. This driver supports the 452 platform specific method of retrieving the current year from 453 the RTC's SRAM. It will work on other platforms with the same 454 chip, but the year will probably have to be tweaked. 455 456 This driver can also be built as a module. If so, the module 457 will be called rtc-pcf8583. 458 459config RTC_DRV_M41T80 460 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible" 461 help 462 If you say Y here you will get support for the ST M41T60 463 and M41T80 RTC chips series. Currently, the following chips are 464 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84, 465 M41ST85, M41ST87, and MicroCrystal RV4162. 466 467 This driver can also be built as a module. If so, the module 468 will be called rtc-m41t80. 469 470config RTC_DRV_M41T80_WDT 471 bool "ST M41T65/M41T80 series RTC watchdog timer" 472 depends on RTC_DRV_M41T80 473 help 474 If you say Y here you will get support for the 475 watchdog timer in the ST M41T60 and M41T80 RTC chips series. 476 477config RTC_DRV_BQ32K 478 tristate "TI BQ32000" 479 help 480 If you say Y here you will get support for the TI 481 BQ32000 I2C RTC chip. 482 483 This driver can also be built as a module. If so, the module 484 will be called rtc-bq32k. 485 486config RTC_DRV_DM355EVM 487 tristate "TI DaVinci DM355 EVM RTC" 488 depends on MFD_DM355EVM_MSP 489 help 490 Supports the RTC firmware in the MSP430 on the DM355 EVM. 491 492config RTC_DRV_TWL92330 493 bool "TI TWL92330/Menelaus" 494 depends on MENELAUS 495 help 496 If you say yes here you get support for the RTC on the 497 TWL92330 "Menelaus" power management chip, used with OMAP2 498 platforms. The support is integrated with the rest of 499 the Menelaus driver; it's not separate module. 500 501config RTC_DRV_TWL4030 502 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0" 503 depends on TWL4030_CORE 504 depends on OF 505 help 506 If you say yes here you get support for the RTC on the 507 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms. 508 509 This driver can also be built as a module. If so, the module 510 will be called rtc-twl. 511 512config RTC_DRV_PALMAS 513 tristate "TI Palmas RTC driver" 514 depends on MFD_PALMAS 515 help 516 If you say yes here you get support for the RTC of TI PALMA series PMIC 517 chips. 518 519 This driver can also be built as a module. If so, the module 520 will be called rtc-palma. 521 522config RTC_DRV_TPS6586X 523 tristate "TI TPS6586X RTC driver" 524 depends on MFD_TPS6586X 525 help 526 TI Power Management IC TPS6586X supports RTC functionality 527 along with alarm. This driver supports the RTC driver for 528 the TPS6586X RTC module. 529 530config RTC_DRV_TPS65910 531 tristate "TI TPS65910 RTC driver" 532 depends on RTC_CLASS && MFD_TPS65910 533 help 534 If you say yes here you get support for the RTC on the 535 TPS65910 chips. 536 537 This driver can also be built as a module. If so, the module 538 will be called rtc-tps65910. 539 540config RTC_DRV_TPS80031 541 tristate "TI TPS80031/TPS80032 RTC driver" 542 depends on MFD_TPS80031 543 help 544 TI Power Management IC TPS80031 supports RTC functionality 545 along with alarm. This driver supports the RTC driver for 546 the TPS80031 RTC module. 547 548config RTC_DRV_RC5T583 549 tristate "RICOH 5T583 RTC driver" 550 depends on MFD_RC5T583 551 help 552 If you say yes here you get support for the RTC on the 553 RICOH 5T583 chips. 554 555 This driver can also be built as a module. If so, the module 556 will be called rtc-rc5t583. 557 558config RTC_DRV_S35390A 559 tristate "Seiko Instruments S-35390A" 560 select BITREVERSE 561 help 562 If you say yes here you will get support for the Seiko 563 Instruments S-35390A. 564 565 This driver can also be built as a module. If so the module 566 will be called rtc-s35390a. 567 568config RTC_DRV_FM3130 569 tristate "Ramtron FM3130" 570 help 571 If you say Y here you will get support for the 572 Ramtron FM3130 RTC chips. 573 Ramtron FM3130 is a chip with two separate devices inside, 574 RTC clock and FRAM. This driver provides only RTC functionality. 575 576 This driver can also be built as a module. If so the module 577 will be called rtc-fm3130. 578 579config RTC_DRV_RX8010 580 tristate "Epson RX8010SJ" 581 depends on I2C 582 help 583 If you say yes here you get support for the Epson RX8010SJ RTC 584 chip. 585 586 This driver can also be built as a module. If so, the module 587 will be called rtc-rx8010. 588 589config RTC_DRV_RX8581 590 tristate "Epson RX-8581" 591 help 592 If you say yes here you will get support for the Epson RX-8581. 593 594 This driver can also be built as a module. If so the module 595 will be called rtc-rx8581. 596 597config RTC_DRV_RX8025 598 tristate "Epson RX-8025SA/NB" 599 help 600 If you say yes here you get support for the Epson 601 RX-8025SA/NB RTC chips. 602 603 This driver can also be built as a module. If so, the module 604 will be called rtc-rx8025. 605 606config RTC_DRV_EM3027 607 tristate "EM Microelectronic EM3027" 608 help 609 If you say yes here you get support for the EM 610 Microelectronic EM3027 RTC chips. 611 612 This driver can also be built as a module. If so, the module 613 will be called rtc-em3027. 614 615config RTC_DRV_RV8803 616 tristate "Micro Crystal RV8803, Epson RX8900" 617 help 618 If you say yes here you get support for the Micro Crystal RV8803 and 619 Epson RX8900 RTC chips. 620 621 This driver can also be built as a module. If so, the module 622 will be called rtc-rv8803. 623 624config RTC_DRV_S5M 625 tristate "Samsung S2M/S5M series" 626 depends on MFD_SEC_CORE || COMPILE_TEST 627 select REGMAP_IRQ 628 help 629 If you say yes here you will get support for the 630 RTC of Samsung S2MPS14 and S5M PMIC series. 631 632 This driver can also be built as a module. If so, the module 633 will be called rtc-s5m. 634 635endif # I2C 636 637comment "SPI RTC drivers" 638 639if SPI_MASTER 640 641config RTC_DRV_M41T93 642 tristate "ST M41T93" 643 help 644 If you say yes here you will get support for the 645 ST M41T93 SPI RTC chip. 646 647 This driver can also be built as a module. If so, the module 648 will be called rtc-m41t93. 649 650config RTC_DRV_M41T94 651 tristate "ST M41T94" 652 help 653 If you say yes here you will get support for the 654 ST M41T94 SPI RTC chip. 655 656 This driver can also be built as a module. If so, the module 657 will be called rtc-m41t94. 658 659config RTC_DRV_DS1302 660 tristate "Dallas/Maxim DS1302" 661 depends on SPI 662 help 663 If you say yes here you get support for the Dallas DS1302 RTC chips. 664 665 This driver can also be built as a module. If so, the module 666 will be called rtc-ds1302. 667 668config RTC_DRV_DS1305 669 tristate "Dallas/Maxim DS1305/DS1306" 670 help 671 Select this driver to get support for the Dallas/Maxim DS1305 672 and DS1306 real time clock chips. These support a trickle 673 charger, alarms, and NVRAM in addition to the clock. 674 675 This driver can also be built as a module. If so, the module 676 will be called rtc-ds1305. 677 678config RTC_DRV_DS1343 679 select REGMAP_SPI 680 tristate "Dallas/Maxim DS1343/DS1344" 681 help 682 If you say yes here you get support for the 683 Dallas/Maxim DS1343 and DS1344 real time clock chips. 684 Support for trickle charger, alarm is provided. 685 686 This driver can also be built as a module. If so, the module 687 will be called rtc-ds1343. 688 689config RTC_DRV_DS1347 690 select REGMAP_SPI 691 tristate "Dallas/Maxim DS1347" 692 help 693 If you say yes here you get support for the 694 Dallas/Maxim DS1347 chips. 695 696 This driver only supports the RTC feature, and not other chip 697 features such as alarms. 698 699 This driver can also be built as a module. If so, the module 700 will be called rtc-ds1347. 701 702config RTC_DRV_DS1390 703 tristate "Dallas/Maxim DS1390/93/94" 704 help 705 If you say yes here you get support for the 706 Dallas/Maxim DS1390/93/94 chips. 707 708 This driver supports the RTC feature and trickle charging but not 709 other chip features such as alarms. 710 711 This driver can also be built as a module. If so, the module 712 will be called rtc-ds1390. 713 714config RTC_DRV_MAX6916 715 tristate "Maxim MAX6916" 716 help 717 If you say yes here you will get support for the 718 Maxim MAX6916 SPI RTC chip. 719 720 This driver only supports the RTC feature, and not other chip 721 features such as alarms. 722 723 This driver can also be built as a module. If so, the module 724 will be called rtc-max6916. 725 726config RTC_DRV_R9701 727 tristate "Epson RTC-9701JE" 728 help 729 If you say yes here you will get support for the 730 Epson RTC-9701JE SPI RTC chip. 731 732 This driver can also be built as a module. If so, the module 733 will be called rtc-r9701. 734 735config RTC_DRV_RX4581 736 tristate "Epson RX-4581" 737 help 738 If you say yes here you will get support for the Epson RX-4581. 739 740 This driver can also be built as a module. If so the module 741 will be called rtc-rx4581. 742 743config RTC_DRV_RX6110 744 tristate "Epson RX-6110" 745 select REGMAP_SPI 746 help 747 If you say yes here you will get support for the Epson RX-6610. 748 749 This driver can also be built as a module. If so the module 750 will be called rtc-rx6110. 751 752config RTC_DRV_RS5C348 753 tristate "Ricoh RS5C348A/B" 754 help 755 If you say yes here you get support for the 756 Ricoh RS5C348A and RS5C348B RTC chips. 757 758 This driver can also be built as a module. If so, the module 759 will be called rtc-rs5c348. 760 761config RTC_DRV_MAX6902 762 tristate "Maxim MAX6902" 763 help 764 If you say yes here you will get support for the 765 Maxim MAX6902 SPI RTC chip. 766 767 This driver can also be built as a module. If so, the module 768 will be called rtc-max6902. 769 770config RTC_DRV_PCF2123 771 tristate "NXP PCF2123" 772 help 773 If you say yes here you get support for the NXP PCF2123 774 RTC chip. 775 776 This driver can also be built as a module. If so, the module 777 will be called rtc-pcf2123. 778 779config RTC_DRV_MCP795 780 tristate "Microchip MCP795" 781 help 782 If you say yes here you will get support for the Microchip MCP795. 783 784 This driver can also be built as a module. If so the module 785 will be called rtc-mcp795. 786 787endif # SPI_MASTER 788 789# 790# Helper to resolve issues with configs that have SPI enabled but I2C 791# modular. See SND_SOC_I2C_AND_SPI for more information 792# 793config RTC_I2C_AND_SPI 794 tristate 795 default m if I2C=m 796 default y if I2C=y 797 default y if SPI_MASTER=y 798 select REGMAP_I2C if I2C 799 select REGMAP_SPI if SPI_MASTER 800 801comment "SPI and I2C RTC drivers" 802 803config RTC_DRV_DS3232 804 tristate "Dallas/Maxim DS3232/DS3234" 805 depends on RTC_I2C_AND_SPI 806 help 807 If you say yes here you get support for Dallas Semiconductor 808 DS3232 and DS3234 real-time clock chips. If an interrupt is associated 809 with the device, the alarm functionality is supported. 810 811 This driver can also be built as a module. If so, the module 812 will be called rtc-ds3232. 813 814config RTC_DRV_DS3232_HWMON 815 bool "HWMON support for Dallas/Maxim DS3232/DS3234" 816 depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m) 817 default y 818 help 819 Say Y here if you want to expose temperature sensor data on 820 rtc-ds3232 821 822config RTC_DRV_PCF2127 823 tristate "NXP PCF2127" 824 depends on RTC_I2C_AND_SPI 825 help 826 If you say yes here you get support for the NXP PCF2127/29 RTC 827 chips. 828 829 This driver can also be built as a module. If so, the module 830 will be called rtc-pcf2127. 831 832config RTC_DRV_RV3029C2 833 tristate "Micro Crystal RV3029/3049" 834 depends on RTC_I2C_AND_SPI 835 help 836 If you say yes here you get support for the Micro Crystal 837 RV3029 and RV3049 RTC chips. 838 839 This driver can also be built as a module. If so, the module 840 will be called rtc-rv3029c2. 841 842config RTC_DRV_RV3029_HWMON 843 bool "HWMON support for RV3029/3049" 844 depends on RTC_DRV_RV3029C2 && HWMON 845 depends on !(RTC_DRV_RV3029C2=y && HWMON=m) 846 default y 847 help 848 Say Y here if you want to expose temperature sensor data on 849 rtc-rv3029. 850 851comment "Platform RTC drivers" 852 853# this 'CMOS' RTC driver is arch dependent because it requires 854# <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a 855# global rtc_lock ... it's not yet just another platform_device. 856 857config RTC_DRV_CMOS 858 tristate "PC-style 'CMOS'" 859 depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 || MN10300 860 default y if X86 861 select RTC_MC146818_LIB 862 help 863 Say "yes" here to get direct support for the real time clock 864 found in every PC or ACPI-based system, and some other boards. 865 Specifically the original MC146818, compatibles like those in 866 PC south bridges, the DS12887 or M48T86, some multifunction 867 or LPC bus chips, and so on. 868 869 Your system will need to define the platform device used by 870 this driver, otherwise it won't be accessible. This means 871 you can safely enable this driver if you don't know whether 872 or not your board has this kind of hardware. 873 874 This driver can also be built as a module. If so, the module 875 will be called rtc-cmos. 876 877config RTC_DRV_ALPHA 878 bool "Alpha PC-style CMOS" 879 depends on ALPHA 880 select RTC_MC146818_LIB 881 default y 882 help 883 Direct support for the real-time clock found on every Alpha 884 system, specifically MC146818 compatibles. If in doubt, say Y. 885 886config RTC_DRV_VRTC 887 tristate "Virtual RTC for Intel MID platforms" 888 depends on X86_INTEL_MID 889 default y if X86_INTEL_MID 890 891 help 892 Say "yes" here to get direct support for the real time clock 893 found on Moorestown platforms. The VRTC is a emulated RTC that 894 derives its clock source from a real RTC in the PMIC. The MC146818 895 style programming interface is mostly conserved, but any 896 updates are done via IPC calls to the system controller FW. 897 898config RTC_DRV_DS1216 899 tristate "Dallas DS1216" 900 depends on SNI_RM 901 help 902 If you say yes here you get support for the Dallas DS1216 RTC chips. 903 904config RTC_DRV_DS1286 905 tristate "Dallas DS1286" 906 depends on HAS_IOMEM 907 help 908 If you say yes here you get support for the Dallas DS1286 RTC chips. 909 910config RTC_DRV_DS1511 911 tristate "Dallas DS1511" 912 depends on HAS_IOMEM 913 help 914 If you say yes here you get support for the 915 Dallas DS1511 timekeeping/watchdog chip. 916 917 This driver can also be built as a module. If so, the module 918 will be called rtc-ds1511. 919 920config RTC_DRV_DS1553 921 tristate "Maxim/Dallas DS1553" 922 depends on HAS_IOMEM 923 help 924 If you say yes here you get support for the 925 Maxim/Dallas DS1553 timekeeping chip. 926 927 This driver can also be built as a module. If so, the module 928 will be called rtc-ds1553. 929 930config RTC_DRV_DS1685_FAMILY 931 tristate "Dallas/Maxim DS1685 Family" 932 help 933 If you say yes here you get support for the Dallas/Maxim DS1685 934 family of real time chips. This family includes the DS1685/DS1687, 935 DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and 936 DS17885/DS17887 chips. 937 938 This driver can also be built as a module. If so, the module 939 will be called rtc-ds1685. 940 941choice 942 prompt "Subtype" 943 depends on RTC_DRV_DS1685_FAMILY 944 default RTC_DRV_DS1685 945 946config RTC_DRV_DS1685 947 bool "DS1685/DS1687" 948 help 949 This enables support for the Dallas/Maxim DS1685/DS1687 real time 950 clock chip. 951 952 This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30) 953 systems, as well as EPPC-405-UC modules by electronic system design 954 GmbH. 955 956config RTC_DRV_DS1689 957 bool "DS1689/DS1693" 958 help 959 This enables support for the Dallas/Maxim DS1689/DS1693 real time 960 clock chip. 961 962 This is an older RTC chip, supplanted by the DS1685/DS1687 above, 963 which supports a few minor features such as Vcc, Vbat, and Power 964 Cycle counters, plus a customer-specific, 8-byte ROM/Serial number. 965 966 It also works for the even older DS1688/DS1691 RTC chips, which are 967 virtually the same and carry the same model number. Both chips 968 have 114 bytes of user NVRAM. 969 970config RTC_DRV_DS17285 971 bool "DS17285/DS17287" 972 help 973 This enables support for the Dallas/Maxim DS17285/DS17287 real time 974 clock chip. 975 976 This chip features 2kb of extended NV-SRAM. It may possibly be 977 found in some SGI O2 systems (rare). 978 979config RTC_DRV_DS17485 980 bool "DS17485/DS17487" 981 help 982 This enables support for the Dallas/Maxim DS17485/DS17487 real time 983 clock chip. 984 985 This chip features 4kb of extended NV-SRAM. 986 987config RTC_DRV_DS17885 988 bool "DS17885/DS17887" 989 help 990 This enables support for the Dallas/Maxim DS17885/DS17887 real time 991 clock chip. 992 993 This chip features 8kb of extended NV-SRAM. 994 995endchoice 996 997config RTC_DS1685_PROC_REGS 998 bool "Display register values in /proc" 999 depends on RTC_DRV_DS1685_FAMILY && PROC_FS 1000 help 1001 Enable this to display a readout of all of the RTC registers in 1002 /proc/drivers/rtc. Keep in mind that this can potentially lead 1003 to lost interrupts, as reading Control Register C will clear 1004 all pending IRQ flags. 1005 1006 Unless you are debugging this driver, choose N. 1007 1008config RTC_DS1685_SYSFS_REGS 1009 bool "SysFS access to RTC register bits" 1010 depends on RTC_DRV_DS1685_FAMILY && SYSFS 1011 help 1012 Enable this to provide access to the RTC control register bits 1013 in /sys. Some of the bits are read-write, others are read-only. 1014 1015 Keep in mind that reading Control C's bits automatically clears 1016 all pending IRQ flags - this can cause lost interrupts. 1017 1018 If you know that you need access to these bits, choose Y, Else N. 1019 1020config RTC_DRV_DS1742 1021 tristate "Maxim/Dallas DS1742/1743" 1022 depends on HAS_IOMEM 1023 help 1024 If you say yes here you get support for the 1025 Maxim/Dallas DS1742/1743 timekeeping chip. 1026 1027 This driver can also be built as a module. If so, the module 1028 will be called rtc-ds1742. 1029 1030config RTC_DRV_DS2404 1031 tristate "Maxim/Dallas DS2404" 1032 help 1033 If you say yes here you get support for the 1034 Dallas DS2404 RTC chip. 1035 1036 This driver can also be built as a module. If so, the module 1037 will be called rtc-ds2404. 1038 1039config RTC_DRV_DA9052 1040 tristate "Dialog DA9052/DA9053 RTC" 1041 depends on PMIC_DA9052 1042 help 1043 Say y here to support the RTC driver for Dialog Semiconductor 1044 DA9052-BC and DA9053-AA/Bx PMICs. 1045 1046config RTC_DRV_DA9055 1047 tristate "Dialog Semiconductor DA9055 RTC" 1048 depends on MFD_DA9055 1049 help 1050 If you say yes here you will get support for the 1051 RTC of the Dialog DA9055 PMIC. 1052 1053 This driver can also be built as a module. If so, the module 1054 will be called rtc-da9055 1055 1056config RTC_DRV_DA9063 1057 tristate "Dialog Semiconductor DA9063/DA9062 RTC" 1058 depends on MFD_DA9063 || MFD_DA9062 1059 help 1060 If you say yes here you will get support for the RTC subsystem 1061 for the Dialog Semiconductor PMIC chips DA9063 and DA9062. 1062 1063 This driver can also be built as a module. If so, the module 1064 will be called "rtc-da9063". 1065 1066config RTC_DRV_EFI 1067 tristate "EFI RTC" 1068 depends on EFI && !X86 1069 help 1070 If you say yes here you will get support for the EFI 1071 Real Time Clock. 1072 1073 This driver can also be built as a module. If so, the module 1074 will be called rtc-efi. 1075 1076config RTC_DRV_STK17TA8 1077 tristate "Simtek STK17TA8" 1078 depends on HAS_IOMEM 1079 help 1080 If you say yes here you get support for the 1081 Simtek STK17TA8 timekeeping chip. 1082 1083 This driver can also be built as a module. If so, the module 1084 will be called rtc-stk17ta8. 1085 1086config RTC_DRV_M48T86 1087 tristate "ST M48T86/Dallas DS12887" 1088 help 1089 If you say Y here you will get support for the 1090 ST M48T86 and Dallas DS12887 RTC chips. 1091 1092 This driver can also be built as a module. If so, the module 1093 will be called rtc-m48t86. 1094 1095config RTC_DRV_M48T35 1096 tristate "ST M48T35" 1097 depends on HAS_IOMEM 1098 help 1099 If you say Y here you will get support for the 1100 ST M48T35 RTC chip. 1101 1102 This driver can also be built as a module, if so, the module 1103 will be called "rtc-m48t35". 1104 1105config RTC_DRV_M48T59 1106 tristate "ST M48T59/M48T08/M48T02" 1107 depends on HAS_IOMEM 1108 help 1109 If you say Y here you will get support for the 1110 ST M48T59 RTC chip and compatible ST M48T08 and M48T02. 1111 1112 These chips are usually found in Sun SPARC and UltraSPARC 1113 workstations. 1114 1115 This driver can also be built as a module, if so, the module 1116 will be called "rtc-m48t59". 1117 1118config RTC_DRV_MSM6242 1119 tristate "Oki MSM6242" 1120 depends on HAS_IOMEM 1121 help 1122 If you say yes here you get support for the Oki MSM6242 1123 timekeeping chip. It is used in some Amiga models (e.g. A2000). 1124 1125 This driver can also be built as a module. If so, the module 1126 will be called rtc-msm6242. 1127 1128config RTC_DRV_BQ4802 1129 tristate "TI BQ4802" 1130 depends on HAS_IOMEM 1131 help 1132 If you say Y here you will get support for the TI 1133 BQ4802 RTC chip. 1134 1135 This driver can also be built as a module. If so, the module 1136 will be called rtc-bq4802. 1137 1138config RTC_DRV_RP5C01 1139 tristate "Ricoh RP5C01" 1140 depends on HAS_IOMEM 1141 help 1142 If you say yes here you get support for the Ricoh RP5C01 1143 timekeeping chip. It is used in some Amiga models (e.g. A3000 1144 and A4000). 1145 1146 This driver can also be built as a module. If so, the module 1147 will be called rtc-rp5c01. 1148 1149config RTC_DRV_V3020 1150 tristate "EM Microelectronic V3020" 1151 help 1152 If you say yes here you will get support for the 1153 EM Microelectronic v3020 RTC chip. 1154 1155 This driver can also be built as a module. If so, the module 1156 will be called rtc-v3020. 1157 1158config RTC_DRV_WM831X 1159 tristate "Wolfson Microelectronics WM831x RTC" 1160 depends on MFD_WM831X 1161 help 1162 If you say yes here you will get support for the RTC subsystem 1163 of the Wolfson Microelectronics WM831X series PMICs. 1164 1165 This driver can also be built as a module. If so, the module 1166 will be called "rtc-wm831x". 1167 1168config RTC_DRV_WM8350 1169 tristate "Wolfson Microelectronics WM8350 RTC" 1170 depends on MFD_WM8350 1171 help 1172 If you say yes here you will get support for the RTC subsystem 1173 of the Wolfson Microelectronics WM8350. 1174 1175 This driver can also be built as a module. If so, the module 1176 will be called "rtc-wm8350". 1177 1178config RTC_DRV_SPEAR 1179 tristate "SPEAR ST RTC" 1180 depends on PLAT_SPEAR || COMPILE_TEST 1181 default y 1182 help 1183 If you say Y here you will get support for the RTC found on 1184 spear 1185 1186config RTC_DRV_PCF50633 1187 depends on MFD_PCF50633 1188 tristate "NXP PCF50633 RTC" 1189 help 1190 If you say yes here you get support for the RTC subsystem of the 1191 NXP PCF50633 used in embedded systems. 1192 1193config RTC_DRV_AB3100 1194 tristate "ST-Ericsson AB3100 RTC" 1195 depends on AB3100_CORE 1196 default y if AB3100_CORE 1197 help 1198 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC 1199 support. This chip contains a battery- and capacitor-backed RTC. 1200 1201config RTC_DRV_AB8500 1202 tristate "ST-Ericsson AB8500 RTC" 1203 depends on AB8500_CORE 1204 select RTC_INTF_DEV 1205 select RTC_INTF_DEV_UIE_EMUL 1206 help 1207 Select this to enable the ST-Ericsson AB8500 power management IC RTC 1208 support. This chip contains a battery- and capacitor-backed RTC. 1209 1210config RTC_DRV_NUC900 1211 tristate "NUC910/NUC920 RTC driver" 1212 depends on ARCH_W90X900 || COMPILE_TEST 1213 help 1214 If you say yes here you get support for the RTC subsystem of the 1215 NUC910/NUC920 used in embedded systems. 1216 1217config RTC_DRV_OPAL 1218 tristate "IBM OPAL RTC driver" 1219 depends on PPC_POWERNV 1220 default y 1221 help 1222 If you say yes here you get support for the PowerNV platform RTC 1223 driver based on OPAL interfaces. 1224 1225 This driver can also be built as a module. If so, the module 1226 will be called rtc-opal. 1227 1228config RTC_DRV_ZYNQMP 1229 tristate "Xilinx Zynq Ultrascale+ MPSoC RTC" 1230 depends on OF 1231 help 1232 If you say yes here you get support for the RTC controller found on 1233 Xilinx Zynq Ultrascale+ MPSoC. 1234 1235comment "on-CPU RTC drivers" 1236 1237config RTC_DRV_ASM9260 1238 tristate "Alphascale asm9260 RTC" 1239 depends on MACH_ASM9260 || COMPILE_TEST 1240 help 1241 If you say yes here you get support for the RTC on the 1242 Alphascale asm9260 SoC. 1243 1244 This driver can also be built as a module. If so, the module 1245 will be called rtc-asm9260. 1246 1247config RTC_DRV_DAVINCI 1248 tristate "TI DaVinci RTC" 1249 depends on ARCH_DAVINCI_DM365 || COMPILE_TEST 1250 help 1251 If you say yes here you get support for the RTC on the 1252 DaVinci platforms (DM365). 1253 1254 This driver can also be built as a module. If so, the module 1255 will be called rtc-davinci. 1256 1257config RTC_DRV_DIGICOLOR 1258 tristate "Conexant Digicolor RTC" 1259 depends on ARCH_DIGICOLOR || COMPILE_TEST 1260 help 1261 If you say yes here you get support for the RTC on Conexant 1262 Digicolor platforms. This currently includes the CX92755 SoC. 1263 1264 This driver can also be built as a module. If so, the module 1265 will be called rtc-digicolor. 1266 1267config RTC_DRV_IMXDI 1268 tristate "Freescale IMX DryIce Real Time Clock" 1269 depends on ARCH_MXC 1270 help 1271 Support for Freescale IMX DryIce RTC 1272 1273 This driver can also be built as a module, if so, the module 1274 will be called "rtc-imxdi". 1275 1276config RTC_DRV_OMAP 1277 tristate "TI OMAP Real Time Clock" 1278 depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST 1279 depends on OF 1280 depends on PINCTRL 1281 select GENERIC_PINCONF 1282 help 1283 Say "yes" here to support the on chip real time clock 1284 present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx. 1285 1286 This driver can also be built as a module, if so, module 1287 will be called rtc-omap. 1288 1289config HAVE_S3C_RTC 1290 bool 1291 help 1292 This will include RTC support for Samsung SoCs. If 1293 you want to include RTC support for any machine, kindly 1294 select this in the respective mach-XXXX/Kconfig file. 1295 1296config RTC_DRV_S3C 1297 tristate "Samsung S3C series SoC RTC" 1298 depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST 1299 help 1300 RTC (Realtime Clock) driver for the clock inbuilt into the 1301 Samsung S3C24XX series of SoCs. This can provide periodic 1302 interrupt rates from 1Hz to 64Hz for user programs, and 1303 wakeup from Alarm. 1304 1305 The driver currently supports the common features on all the 1306 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440 1307 and S3C2442. 1308 1309 This driver can also be build as a module. If so, the module 1310 will be called rtc-s3c. 1311 1312config RTC_DRV_EP93XX 1313 tristate "Cirrus Logic EP93XX" 1314 depends on ARCH_EP93XX || COMPILE_TEST 1315 help 1316 If you say yes here you get support for the 1317 RTC embedded in the Cirrus Logic EP93XX processors. 1318 1319 This driver can also be built as a module. If so, the module 1320 will be called rtc-ep93xx. 1321 1322config RTC_DRV_SA1100 1323 tristate "SA11x0/PXA2xx/PXA910" 1324 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP 1325 help 1326 If you say Y here you will get access to the real time clock 1327 built into your SA11x0 or PXA2xx CPU. 1328 1329 To compile this driver as a module, choose M here: the 1330 module will be called rtc-sa1100. 1331 1332config RTC_DRV_SH 1333 tristate "SuperH On-Chip RTC" 1334 depends on SUPERH || ARCH_RENESAS 1335 help 1336 Say Y here to enable support for the on-chip RTC found in 1337 most SuperH processors. This RTC is also found in RZ/A SoCs. 1338 1339 To compile this driver as a module, choose M here: the 1340 module will be called rtc-sh. 1341 1342config RTC_DRV_VR41XX 1343 tristate "NEC VR41XX" 1344 depends on CPU_VR41XX || COMPILE_TEST 1345 help 1346 If you say Y here you will get access to the real time clock 1347 built into your NEC VR41XX CPU. 1348 1349 To compile this driver as a module, choose M here: the 1350 module will be called rtc-vr41xx. 1351 1352config RTC_DRV_PL030 1353 tristate "ARM AMBA PL030 RTC" 1354 depends on ARM_AMBA 1355 help 1356 If you say Y here you will get access to ARM AMBA 1357 PrimeCell PL030 RTC found on certain ARM SOCs. 1358 1359 To compile this driver as a module, choose M here: the 1360 module will be called rtc-pl030. 1361 1362config RTC_DRV_PL031 1363 tristate "ARM AMBA PL031 RTC" 1364 depends on ARM_AMBA 1365 help 1366 If you say Y here you will get access to ARM AMBA 1367 PrimeCell PL031 RTC found on certain ARM SOCs. 1368 1369 To compile this driver as a module, choose M here: the 1370 module will be called rtc-pl031. 1371 1372config RTC_DRV_AT32AP700X 1373 tristate "AT32AP700X series RTC" 1374 depends on PLATFORM_AT32AP || COMPILE_TEST 1375 help 1376 Driver for the internal RTC (Realtime Clock) on Atmel AVR32 1377 AT32AP700x family processors. 1378 1379config RTC_DRV_AT91RM9200 1380 tristate "AT91RM9200 or some AT91SAM9 RTC" 1381 depends on ARCH_AT91 || COMPILE_TEST 1382 help 1383 Driver for the internal RTC (Realtime Clock) module found on 1384 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips 1385 this is powered by the backup power supply. 1386 1387config RTC_DRV_AT91SAM9 1388 tristate "AT91SAM9 RTT as RTC" 1389 depends on ARCH_AT91 || COMPILE_TEST 1390 select MFD_SYSCON 1391 help 1392 Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which 1393 can be used as an RTC thanks to the backup power supply (e.g. a 1394 small coin cell battery) which keeps this block and the GPBR 1395 (General Purpose Backup Registers) block powered when the device 1396 is shutdown. 1397 Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd 1398 probably want to use the real RTC block instead of the "RTT as an 1399 RTC" driver. 1400 1401config RTC_DRV_AU1XXX 1402 tristate "Au1xxx Counter0 RTC support" 1403 depends on MIPS_ALCHEMY 1404 help 1405 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year 1406 counter) to be used as a RTC. 1407 1408 This driver can also be built as a module. If so, the module 1409 will be called rtc-au1xxx. 1410 1411config RTC_DRV_BFIN 1412 tristate "Blackfin On-Chip RTC" 1413 depends on BLACKFIN && !BF561 1414 help 1415 If you say yes here you will get support for the 1416 Blackfin On-Chip Real Time Clock. 1417 1418 This driver can also be built as a module. If so, the module 1419 will be called rtc-bfin. 1420 1421config RTC_DRV_RS5C313 1422 tristate "Ricoh RS5C313" 1423 depends on SH_LANDISK 1424 help 1425 If you say yes here you get support for the Ricoh RS5C313 RTC chips. 1426 1427config RTC_DRV_GENERIC 1428 tristate "Generic RTC support" 1429 # Please consider writing a new RTC driver instead of using the generic 1430 # RTC abstraction 1431 depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST 1432 help 1433 Say Y or M here to enable RTC support on systems using the generic 1434 RTC abstraction. If you do not know what you are doing, you should 1435 just say Y. 1436 1437config RTC_DRV_PXA 1438 tristate "PXA27x/PXA3xx" 1439 depends on ARCH_PXA 1440 select RTC_DRV_SA1100 1441 help 1442 If you say Y here you will get access to the real time clock 1443 built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs 1444 consisting of an SA1100 compatible RTC and the extended PXA RTC. 1445 1446 This RTC driver uses PXA RTC registers available since pxa27x 1447 series (RDxR, RYxR) instead of legacy RCNR, RTAR. 1448 1449config RTC_DRV_VT8500 1450 tristate "VIA/WonderMedia 85xx SoC RTC" 1451 depends on ARCH_VT8500 || COMPILE_TEST 1452 help 1453 If you say Y here you will get access to the real time clock 1454 built into your VIA VT8500 SoC or its relatives. 1455 1456 1457config RTC_DRV_SUN4V 1458 bool "SUN4V Hypervisor RTC" 1459 depends on SPARC64 1460 help 1461 If you say Y here you will get support for the Hypervisor 1462 based RTC on SUN4V systems. 1463 1464config RTC_DRV_SUN6I 1465 bool "Allwinner A31 RTC" 1466 default MACH_SUN6I || MACH_SUN8I 1467 depends on COMMON_CLK 1468 depends on ARCH_SUNXI || COMPILE_TEST 1469 help 1470 If you say Y here you will get support for the RTC found in 1471 some Allwinner SoCs like the A31 or the A64. 1472 1473config RTC_DRV_SUNXI 1474 tristate "Allwinner sun4i/sun7i RTC" 1475 depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST 1476 help 1477 If you say Y here you will get support for the RTC found on 1478 Allwinner A10/A20. 1479 1480config RTC_DRV_STARFIRE 1481 bool "Starfire RTC" 1482 depends on SPARC64 1483 help 1484 If you say Y here you will get support for the RTC found on 1485 Starfire systems. 1486 1487config RTC_DRV_TX4939 1488 tristate "TX4939 SoC" 1489 depends on SOC_TX4939 1490 help 1491 Driver for the internal RTC (Realtime Clock) module found on 1492 Toshiba TX4939 SoC. 1493 1494config RTC_DRV_MV 1495 tristate "Marvell SoC RTC" 1496 depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST 1497 help 1498 If you say yes here you will get support for the in-chip RTC 1499 that can be found in some of Marvell's SoC devices, such as 1500 the Kirkwood 88F6281 and 88F6192. 1501 1502 This driver can also be built as a module. If so, the module 1503 will be called rtc-mv. 1504 1505config RTC_DRV_ARMADA38X 1506 tristate "Armada 38x Marvell SoC RTC" 1507 depends on ARCH_MVEBU || COMPILE_TEST 1508 help 1509 If you say yes here you will get support for the in-chip RTC 1510 that can be found in the Armada 38x Marvell's SoC device 1511 1512 This driver can also be built as a module. If so, the module 1513 will be called armada38x-rtc. 1514 1515config RTC_DRV_FTRTC010 1516 tristate "Faraday Technology FTRTC010 RTC" 1517 depends on HAS_IOMEM 1518 default ARCH_GEMINI 1519 help 1520 If you say Y here you will get support for the 1521 Faraday Technolog FTRTC010 found on e.g. Gemini SoC's. 1522 1523 This driver can also be built as a module. If so, the module 1524 will be called rtc-ftrtc010. 1525 1526config RTC_DRV_PS3 1527 tristate "PS3 RTC" 1528 depends on PPC_PS3 1529 help 1530 If you say yes here you will get support for the RTC on PS3. 1531 1532 This driver can also be built as a module. If so, the module 1533 will be called rtc-ps3. 1534 1535config RTC_DRV_COH901331 1536 tristate "ST-Ericsson COH 901 331 RTC" 1537 depends on ARCH_U300 || COMPILE_TEST 1538 help 1539 If you say Y here you will get access to ST-Ericsson 1540 COH 901 331 RTC clock found in some ST-Ericsson Mobile 1541 Platforms. 1542 1543 This driver can also be built as a module. If so, the module 1544 will be called "rtc-coh901331". 1545 1546 1547config RTC_DRV_STMP 1548 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC" 1549 depends on ARCH_MXS || COMPILE_TEST 1550 select STMP_DEVICE 1551 help 1552 If you say yes here you will get support for the onboard 1553 STMP3xxx/i.MX23/i.MX28 RTC. 1554 1555 This driver can also be built as a module. If so, the module 1556 will be called rtc-stmp3xxx. 1557 1558config RTC_DRV_PCAP 1559 tristate "PCAP RTC" 1560 depends on EZX_PCAP 1561 help 1562 If you say Y here you will get support for the RTC found on 1563 the PCAP2 ASIC used on some Motorola phones. 1564 1565config RTC_DRV_MC13XXX 1566 depends on MFD_MC13XXX 1567 tristate "Freescale MC13xxx RTC" 1568 help 1569 This enables support for the RTCs found on Freescale's PMICs 1570 MC13783 and MC13892. 1571 1572config RTC_DRV_MPC5121 1573 tristate "Freescale MPC5121 built-in RTC" 1574 depends on PPC_MPC512x || PPC_MPC52xx 1575 help 1576 If you say yes here you will get support for the 1577 built-in RTC on MPC5121 or on MPC5200. 1578 1579 This driver can also be built as a module. If so, the module 1580 will be called rtc-mpc5121. 1581 1582config RTC_DRV_JZ4740 1583 tristate "Ingenic JZ4740 SoC" 1584 depends on MACH_INGENIC || COMPILE_TEST 1585 help 1586 If you say yes here you get support for the Ingenic JZ47xx SoCs RTC 1587 controllers. 1588 1589 This driver can also be buillt as a module. If so, the module 1590 will be called rtc-jz4740. 1591 1592config RTC_DRV_LPC24XX 1593 tristate "NXP RTC for LPC178x/18xx/408x/43xx" 1594 depends on ARCH_LPC18XX || COMPILE_TEST 1595 depends on OF && HAS_IOMEM 1596 help 1597 This enables support for the NXP RTC found which can be found on 1598 NXP LPC178x/18xx/408x/43xx devices. 1599 1600 If you have one of the devices above enable this driver to use 1601 the hardware RTC. This driver can also be built as a module. If 1602 so, the module will be called rtc-lpc24xx. 1603 1604config RTC_DRV_LPC32XX 1605 depends on ARCH_LPC32XX || COMPILE_TEST 1606 tristate "NXP LPC32XX RTC" 1607 help 1608 This enables support for the NXP RTC in the LPC32XX 1609 1610 This driver can also be built as a module. If so, the module 1611 will be called rtc-lpc32xx. 1612 1613config RTC_DRV_PM8XXX 1614 tristate "Qualcomm PMIC8XXX RTC" 1615 depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST 1616 help 1617 If you say yes here you get support for the 1618 Qualcomm PMIC8XXX RTC. 1619 1620 To compile this driver as a module, choose M here: the 1621 module will be called rtc-pm8xxx. 1622 1623config RTC_DRV_TEGRA 1624 tristate "NVIDIA Tegra Internal RTC driver" 1625 depends on ARCH_TEGRA || COMPILE_TEST 1626 help 1627 If you say yes here you get support for the 1628 Tegra 200 series internal RTC module. 1629 1630 This drive can also be built as a module. If so, the module 1631 will be called rtc-tegra. 1632 1633config RTC_DRV_TILE 1634 tristate "Tilera hypervisor RTC support" 1635 depends on TILE 1636 help 1637 Enable support for the Linux driver side of the Tilera 1638 hypervisor's real-time clock interface. 1639 1640config RTC_DRV_PUV3 1641 tristate "PKUnity v3 RTC support" 1642 depends on ARCH_PUV3 1643 help 1644 This enables support for the RTC in the PKUnity-v3 SoCs. 1645 1646 This drive can also be built as a module. If so, the module 1647 will be called rtc-puv3. 1648 1649config RTC_DRV_LOONGSON1 1650 tristate "loongson1 RTC support" 1651 depends on MACH_LOONGSON32 1652 help 1653 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year 1654 counter) to be used as a RTC. 1655 1656 This driver can also be built as a module. If so, the module 1657 will be called rtc-ls1x. 1658 1659config RTC_DRV_MXC 1660 tristate "Freescale MXC Real Time Clock" 1661 depends on ARCH_MXC 1662 help 1663 If you say yes here you get support for the Freescale MXC 1664 RTC module. 1665 1666 This driver can also be built as a module, if so, the module 1667 will be called "rtc-mxc". 1668 1669config RTC_DRV_SNVS 1670 tristate "Freescale SNVS RTC support" 1671 select REGMAP_MMIO 1672 depends on HAS_IOMEM 1673 depends on OF 1674 help 1675 If you say yes here you get support for the Freescale SNVS 1676 Low Power (LP) RTC module. 1677 1678 This driver can also be built as a module, if so, the module 1679 will be called "rtc-snvs". 1680 1681config RTC_DRV_SIRFSOC 1682 tristate "SiRFSOC RTC" 1683 depends on ARCH_SIRF 1684 help 1685 Say "yes" here to support the real time clock on SiRF SOC chips. 1686 This driver can also be built as a module called rtc-sirfsoc. 1687 1688config RTC_DRV_ST_LPC 1689 tristate "STMicroelectronics LPC RTC" 1690 depends on ARCH_STI 1691 depends on OF 1692 help 1693 Say Y here to include STMicroelectronics Low Power Controller 1694 (LPC) based RTC support. 1695 1696 To compile this driver as a module, choose M here: the 1697 module will be called rtc-st-lpc. 1698 1699config RTC_DRV_MOXART 1700 tristate "MOXA ART RTC" 1701 depends on ARCH_MOXART || COMPILE_TEST 1702 help 1703 If you say yes here you get support for the MOXA ART 1704 RTC module. 1705 1706 This driver can also be built as a module. If so, the module 1707 will be called rtc-moxart 1708 1709config RTC_DRV_MT6397 1710 tristate "Mediatek Real Time Clock driver" 1711 depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN) 1712 help 1713 This selects the Mediatek(R) RTC driver. RTC is part of Mediatek 1714 MT6397 PMIC. You should enable MT6397 PMIC MFD before select 1715 Mediatek(R) RTC driver. 1716 1717 If you want to use Mediatek(R) RTC interface, select Y or M here. 1718 1719config RTC_DRV_XGENE 1720 tristate "APM X-Gene RTC" 1721 depends on HAS_IOMEM 1722 depends on ARCH_XGENE || COMPILE_TEST 1723 help 1724 If you say yes here you get support for the APM X-Gene SoC real time 1725 clock. 1726 1727 This driver can also be built as a module, if so, the module 1728 will be called "rtc-xgene". 1729 1730config RTC_DRV_PIC32 1731 tristate "Microchip PIC32 RTC" 1732 depends on MACH_PIC32 1733 default y 1734 help 1735 If you say yes here you get support for the PIC32 RTC module. 1736 1737 This driver can also be built as a module. If so, the module 1738 will be called rtc-pic32 1739 1740config RTC_DRV_R7301 1741 tristate "EPSON TOYOCOM RTC-7301SF/DG" 1742 select REGMAP_MMIO 1743 depends on OF && HAS_IOMEM 1744 help 1745 If you say yes here you get support for the EPSON TOYOCOM 1746 RTC-7301SF/DG chips. 1747 1748 This driver can also be built as a module. If so, the module 1749 will be called rtc-r7301. 1750 1751config RTC_DRV_STM32 1752 tristate "STM32 RTC" 1753 select REGMAP_MMIO 1754 depends on ARCH_STM32 || COMPILE_TEST 1755 help 1756 If you say yes here you get support for the STM32 On-Chip 1757 Real Time Clock. 1758 1759 This driver can also be built as a module, if so, the module 1760 will be called "rtc-stm32". 1761 1762config RTC_DRV_CPCAP 1763 depends on MFD_CPCAP 1764 tristate "Motorola CPCAP RTC" 1765 help 1766 Say y here for CPCAP rtc found on some Motorola phones 1767 and tablets such as Droid 4. 1768 1769config RTC_DRV_RTD119X 1770 bool "Realtek RTD129x RTC" 1771 depends on ARCH_REALTEK || COMPILE_TEST 1772 default ARCH_REALTEK 1773 help 1774 If you say yes here, you get support for the RTD1295 SoC 1775 Real Time Clock. 1776 1777comment "HID Sensor RTC drivers" 1778 1779config RTC_DRV_HID_SENSOR_TIME 1780 tristate "HID Sensor Time" 1781 depends on USB_HID 1782 select IIO 1783 select HID_SENSOR_HUB 1784 select HID_SENSOR_IIO_COMMON 1785 help 1786 Say yes here to build support for the HID Sensors of type Time. 1787 This drivers makes such sensors available as RTCs. 1788 1789 If this driver is compiled as a module, it will be named 1790 rtc-hid-sensor-time. 1791 1792config RTC_DRV_GOLDFISH 1793 tristate "Goldfish Real Time Clock" 1794 depends on MIPS && (GOLDFISH || COMPILE_TEST) 1795 help 1796 Say yes to enable RTC driver for the Goldfish based virtual platform. 1797 1798 Goldfish is a code name for the virtual platform developed by Google 1799 for Android emulation. 1800 1801endif # RTC_CLASS 1802