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, 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, ST M41T00, 235 EPSON RX-8025, Intersil ISL12057 and probably other chips. In some 236 cases the RTC must already have been initialized (by manufacturing or 237 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 help 327 If you say yes here you will get support for the 328 RTC of Maxim MAX8907 PMIC. 329 330 This driver can also be built as a module. If so, the module 331 will be called rtc-max8907. 332 333config RTC_DRV_MAX8925 334 tristate "Maxim MAX8925" 335 depends on MFD_MAX8925 336 help 337 If you say yes here you will get support for the 338 RTC of Maxim MAX8925 PMIC. 339 340 This driver can also be built as a module. If so, the module 341 will be called rtc-max8925. 342 343config RTC_DRV_MAX8998 344 tristate "Maxim MAX8998" 345 depends on MFD_MAX8998 346 help 347 If you say yes here you will get support for the 348 RTC of Maxim MAX8998 PMIC. 349 350 This driver can also be built as a module. If so, the module 351 will be called rtc-max8998. 352 353config RTC_DRV_MAX8997 354 tristate "Maxim MAX8997" 355 depends on MFD_MAX8997 356 help 357 If you say yes here you will get support for the 358 RTC of Maxim MAX8997 PMIC. 359 360 This driver can also be built as a module. If so, the module 361 will be called rtc-max8997. 362 363config RTC_DRV_MAX77686 364 tristate "Maxim MAX77686" 365 depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST 366 help 367 If you say yes here you will get support for the 368 RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC. 369 370 This driver can also be built as a module. If so, the module 371 will be called rtc-max77686. 372 373config RTC_DRV_RK808 374 tristate "Rockchip RK808/RK818 RTC" 375 depends on MFD_RK808 376 help 377 If you say yes here you will get support for the 378 RTC of RK808 and RK818 PMIC. 379 380 This driver can also be built as a module. If so, the module 381 will be called rk808-rtc. 382 383config RTC_DRV_RS5C372 384 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A" 385 help 386 If you say yes here you get support for the 387 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. 388 389 This driver can also be built as a module. If so, the module 390 will be called rtc-rs5c372. 391 392config RTC_DRV_ISL1208 393 tristate "Intersil ISL1208" 394 help 395 If you say yes here you get support for the 396 Intersil ISL1208 RTC chip. 397 398 This driver can also be built as a module. If so, the module 399 will be called rtc-isl1208. 400 401config RTC_DRV_ISL12022 402 tristate "Intersil ISL12022" 403 help 404 If you say yes here you get support for the 405 Intersil ISL12022 RTC chip. 406 407 This driver can also be built as a module. If so, the module 408 will be called rtc-isl12022. 409 410config RTC_DRV_X1205 411 tristate "Xicor/Intersil X1205" 412 help 413 If you say yes here you get support for the 414 Xicor/Intersil X1205 RTC chip. 415 416 This driver can also be built as a module. If so, the module 417 will be called rtc-x1205. 418 419config RTC_DRV_PCF8523 420 tristate "NXP PCF8523" 421 help 422 If you say yes here you get support for the NXP PCF8523 RTC 423 chips. 424 425 This driver can also be built as a module. If so, the module 426 will be called rtc-pcf8523. 427 428config RTC_DRV_PCF85063 429 tristate "NXP PCF85063" 430 help 431 If you say yes here you get support for the PCF85063 RTC chip 432 433 This driver can also be built as a module. If so, the module 434 will be called rtc-pcf85063. 435 436config RTC_DRV_PCF8563 437 tristate "Philips PCF8563/Epson RTC8564" 438 help 439 If you say yes here you get support for the 440 Philips PCF8563 RTC chip. The Epson RTC8564 441 should work as well. 442 443 This driver can also be built as a module. If so, the module 444 will be called rtc-pcf8563. 445 446config RTC_DRV_PCF8583 447 tristate "Philips PCF8583" 448 help 449 If you say yes here you get support for the Philips PCF8583 450 RTC chip found on Acorn RiscPCs. This driver supports the 451 platform specific method of retrieving the current year from 452 the RTC's SRAM. It will work on other platforms with the same 453 chip, but the year will probably have to be tweaked. 454 455 This driver can also be built as a module. If so, the module 456 will be called rtc-pcf8583. 457 458config RTC_DRV_M41T80 459 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible" 460 help 461 If you say Y here you will get support for the ST M41T60 462 and M41T80 RTC chips series. Currently, the following chips are 463 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84, 464 M41ST85, M41ST87, and MicroCrystal RV4162. 465 466 This driver can also be built as a module. If so, the module 467 will be called rtc-m41t80. 468 469config RTC_DRV_M41T80_WDT 470 bool "ST M41T65/M41T80 series RTC watchdog timer" 471 depends on RTC_DRV_M41T80 472 help 473 If you say Y here you will get support for the 474 watchdog timer in the ST M41T60 and M41T80 RTC chips series. 475 476config RTC_DRV_BQ32K 477 tristate "TI BQ32000" 478 help 479 If you say Y here you will get support for the TI 480 BQ32000 I2C RTC chip. 481 482 This driver can also be built as a module. If so, the module 483 will be called rtc-bq32k. 484 485config RTC_DRV_DM355EVM 486 tristate "TI DaVinci DM355 EVM RTC" 487 depends on MFD_DM355EVM_MSP 488 help 489 Supports the RTC firmware in the MSP430 on the DM355 EVM. 490 491config RTC_DRV_TWL92330 492 bool "TI TWL92330/Menelaus" 493 depends on MENELAUS 494 help 495 If you say yes here you get support for the RTC on the 496 TWL92330 "Menelaus" power management chip, used with OMAP2 497 platforms. The support is integrated with the rest of 498 the Menelaus driver; it's not separate module. 499 500config RTC_DRV_TWL4030 501 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0" 502 depends on TWL4030_CORE 503 depends on OF 504 help 505 If you say yes here you get support for the RTC on the 506 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms. 507 508 This driver can also be built as a module. If so, the module 509 will be called rtc-twl. 510 511config RTC_DRV_PALMAS 512 tristate "TI Palmas RTC driver" 513 depends on MFD_PALMAS 514 help 515 If you say yes here you get support for the RTC of TI PALMA series PMIC 516 chips. 517 518 This driver can also be built as a module. If so, the module 519 will be called rtc-palma. 520 521config RTC_DRV_TPS6586X 522 tristate "TI TPS6586X RTC driver" 523 depends on MFD_TPS6586X 524 help 525 TI Power Management IC TPS6586X supports RTC functionality 526 along with alarm. This driver supports the RTC driver for 527 the TPS6586X RTC module. 528 529config RTC_DRV_TPS65910 530 tristate "TI TPS65910 RTC driver" 531 depends on RTC_CLASS && MFD_TPS65910 532 help 533 If you say yes here you get support for the RTC on the 534 TPS65910 chips. 535 536 This driver can also be built as a module. If so, the module 537 will be called rtc-tps65910. 538 539config RTC_DRV_TPS80031 540 tristate "TI TPS80031/TPS80032 RTC driver" 541 depends on MFD_TPS80031 542 help 543 TI Power Management IC TPS80031 supports RTC functionality 544 along with alarm. This driver supports the RTC driver for 545 the TPS80031 RTC module. 546 547config RTC_DRV_RC5T583 548 tristate "RICOH 5T583 RTC driver" 549 depends on MFD_RC5T583 550 help 551 If you say yes here you get support for the RTC on the 552 RICOH 5T583 chips. 553 554 This driver can also be built as a module. If so, the module 555 will be called rtc-rc5t583. 556 557config RTC_DRV_S35390A 558 tristate "Seiko Instruments S-35390A" 559 select BITREVERSE 560 help 561 If you say yes here you will get support for the Seiko 562 Instruments S-35390A. 563 564 This driver can also be built as a module. If so the module 565 will be called rtc-s35390a. 566 567config RTC_DRV_FM3130 568 tristate "Ramtron FM3130" 569 help 570 If you say Y here you will get support for the 571 Ramtron FM3130 RTC chips. 572 Ramtron FM3130 is a chip with two separate devices inside, 573 RTC clock and FRAM. This driver provides only RTC functionality. 574 575 This driver can also be built as a module. If so the module 576 will be called rtc-fm3130. 577 578config RTC_DRV_RX8010 579 tristate "Epson RX8010SJ" 580 depends on I2C 581 help 582 If you say yes here you get support for the Epson RX8010SJ RTC 583 chip. 584 585 This driver can also be built as a module. If so, the module 586 will be called rtc-rx8010. 587 588config RTC_DRV_RX8581 589 tristate "Epson RX-8581" 590 help 591 If you say yes here you will get support for the Epson RX-8581. 592 593 This driver can also be built as a module. If so the module 594 will be called rtc-rx8581. 595 596config RTC_DRV_RX8025 597 tristate "Epson RX-8025SA/NB" 598 help 599 If you say yes here you get support for the Epson 600 RX-8025SA/NB RTC chips. 601 602 This driver can also be built as a module. If so, the module 603 will be called rtc-rx8025. 604 605config RTC_DRV_EM3027 606 tristate "EM Microelectronic EM3027" 607 help 608 If you say yes here you get support for the EM 609 Microelectronic EM3027 RTC chips. 610 611 This driver can also be built as a module. If so, the module 612 will be called rtc-em3027. 613 614config RTC_DRV_RV8803 615 tristate "Micro Crystal RV8803, Epson RX8900" 616 help 617 If you say yes here you get support for the Micro Crystal RV8803 and 618 Epson RX8900 RTC chips. 619 620 This driver can also be built as a module. If so, the module 621 will be called rtc-rv8803. 622 623config RTC_DRV_S5M 624 tristate "Samsung S2M/S5M series" 625 depends on MFD_SEC_CORE || COMPILE_TEST 626 select REGMAP_IRQ 627 help 628 If you say yes here you will get support for the 629 RTC of Samsung S2MPS14 and S5M PMIC series. 630 631 This driver can also be built as a module. If so, the module 632 will be called rtc-s5m. 633 634endif # I2C 635 636comment "SPI RTC drivers" 637 638if SPI_MASTER 639 640config RTC_DRV_M41T93 641 tristate "ST M41T93" 642 help 643 If you say yes here you will get support for the 644 ST M41T93 SPI RTC chip. 645 646 This driver can also be built as a module. If so, the module 647 will be called rtc-m41t93. 648 649config RTC_DRV_M41T94 650 tristate "ST M41T94" 651 help 652 If you say yes here you will get support for the 653 ST M41T94 SPI RTC chip. 654 655 This driver can also be built as a module. If so, the module 656 will be called rtc-m41t94. 657 658config RTC_DRV_DS1302 659 tristate "Dallas/Maxim DS1302" 660 depends on SPI 661 help 662 If you say yes here you get support for the Dallas DS1302 RTC chips. 663 664 This driver can also be built as a module. If so, the module 665 will be called rtc-ds1302. 666 667config RTC_DRV_DS1305 668 tristate "Dallas/Maxim DS1305/DS1306" 669 help 670 Select this driver to get support for the Dallas/Maxim DS1305 671 and DS1306 real time clock chips. These support a trickle 672 charger, alarms, and NVRAM in addition to the clock. 673 674 This driver can also be built as a module. If so, the module 675 will be called rtc-ds1305. 676 677config RTC_DRV_DS1343 678 select REGMAP_SPI 679 tristate "Dallas/Maxim DS1343/DS1344" 680 help 681 If you say yes here you get support for the 682 Dallas/Maxim DS1343 and DS1344 real time clock chips. 683 Support for trickle charger, alarm is provided. 684 685 This driver can also be built as a module. If so, the module 686 will be called rtc-ds1343. 687 688config RTC_DRV_DS1347 689 select REGMAP_SPI 690 tristate "Dallas/Maxim DS1347" 691 help 692 If you say yes here you get support for the 693 Dallas/Maxim DS1347 chips. 694 695 This driver only supports the RTC feature, and not other chip 696 features such as alarms. 697 698 This driver can also be built as a module. If so, the module 699 will be called rtc-ds1347. 700 701config RTC_DRV_DS1390 702 tristate "Dallas/Maxim DS1390/93/94" 703 help 704 If you say yes here you get support for the 705 Dallas/Maxim DS1390/93/94 chips. 706 707 This driver supports the RTC feature and trickle charging but not 708 other chip features such as alarms. 709 710 This driver can also be built as a module. If so, the module 711 will be called rtc-ds1390. 712 713config RTC_DRV_MAX6916 714 tristate "Maxim MAX6916" 715 help 716 If you say yes here you will get support for the 717 Maxim MAX6916 SPI RTC chip. 718 719 This driver only supports the RTC feature, and not other chip 720 features such as alarms. 721 722 This driver can also be built as a module. If so, the module 723 will be called rtc-max6916. 724 725config RTC_DRV_R9701 726 tristate "Epson RTC-9701JE" 727 help 728 If you say yes here you will get support for the 729 Epson RTC-9701JE SPI RTC chip. 730 731 This driver can also be built as a module. If so, the module 732 will be called rtc-r9701. 733 734config RTC_DRV_RX4581 735 tristate "Epson RX-4581" 736 help 737 If you say yes here you will get support for the Epson RX-4581. 738 739 This driver can also be built as a module. If so the module 740 will be called rtc-rx4581. 741 742config RTC_DRV_RX6110 743 tristate "Epson RX-6110" 744 select REGMAP_SPI 745 help 746 If you say yes here you will get support for the Epson RX-6610. 747 748 This driver can also be built as a module. If so the module 749 will be called rtc-rx6110. 750 751config RTC_DRV_RS5C348 752 tristate "Ricoh RS5C348A/B" 753 help 754 If you say yes here you get support for the 755 Ricoh RS5C348A and RS5C348B RTC chips. 756 757 This driver can also be built as a module. If so, the module 758 will be called rtc-rs5c348. 759 760config RTC_DRV_MAX6902 761 tristate "Maxim MAX6902" 762 help 763 If you say yes here you will get support for the 764 Maxim MAX6902 SPI RTC chip. 765 766 This driver can also be built as a module. If so, the module 767 will be called rtc-max6902. 768 769config RTC_DRV_PCF2123 770 tristate "NXP PCF2123" 771 help 772 If you say yes here you get support for the NXP PCF2123 773 RTC chip. 774 775 This driver can also be built as a module. If so, the module 776 will be called rtc-pcf2123. 777 778config RTC_DRV_MCP795 779 tristate "Microchip MCP795" 780 help 781 If you say yes here you will get support for the Microchip MCP795. 782 783 This driver can also be built as a module. If so the module 784 will be called rtc-mcp795. 785 786endif # SPI_MASTER 787 788# 789# Helper to resolve issues with configs that have SPI enabled but I2C 790# modular. See SND_SOC_I2C_AND_SPI for more information 791# 792config RTC_I2C_AND_SPI 793 tristate 794 default m if I2C=m 795 default y if I2C=y 796 default y if SPI_MASTER=y 797 select REGMAP_I2C if I2C 798 select REGMAP_SPI if SPI_MASTER 799 800comment "SPI and I2C RTC drivers" 801 802config RTC_DRV_DS3232 803 tristate "Dallas/Maxim DS3232/DS3234" 804 depends on RTC_I2C_AND_SPI 805 help 806 If you say yes here you get support for Dallas Semiconductor 807 DS3232 and DS3234 real-time clock chips. If an interrupt is associated 808 with the device, the alarm functionality is supported. 809 810 This driver can also be built as a module. If so, the module 811 will be called rtc-ds3232. 812 813config RTC_DRV_DS3232_HWMON 814 bool "HWMON support for Dallas/Maxim DS3232/DS3234" 815 depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m) 816 default y 817 help 818 Say Y here if you want to expose temperature sensor data on 819 rtc-ds3232 820 821config RTC_DRV_PCF2127 822 tristate "NXP PCF2127" 823 depends on RTC_I2C_AND_SPI 824 help 825 If you say yes here you get support for the NXP PCF2127/29 RTC 826 chips. 827 828 This driver can also be built as a module. If so, the module 829 will be called rtc-pcf2127. 830 831config RTC_DRV_RV3029C2 832 tristate "Micro Crystal RV3029/3049" 833 depends on RTC_I2C_AND_SPI 834 help 835 If you say yes here you get support for the Micro Crystal 836 RV3029 and RV3049 RTC chips. 837 838 This driver can also be built as a module. If so, the module 839 will be called rtc-rv3029c2. 840 841config RTC_DRV_RV3029_HWMON 842 bool "HWMON support for RV3029/3049" 843 depends on RTC_DRV_RV3029C2 && HWMON 844 depends on !(RTC_DRV_RV3029C2=y && HWMON=m) 845 default y 846 help 847 Say Y here if you want to expose temperature sensor data on 848 rtc-rv3029. 849 850comment "Platform RTC drivers" 851 852# this 'CMOS' RTC driver is arch dependent because it requires 853# <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a 854# global rtc_lock ... it's not yet just another platform_device. 855 856config RTC_DRV_CMOS 857 tristate "PC-style 'CMOS'" 858 depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 || MN10300 859 default y if X86 860 select RTC_MC146818_LIB 861 help 862 Say "yes" here to get direct support for the real time clock 863 found in every PC or ACPI-based system, and some other boards. 864 Specifically the original MC146818, compatibles like those in 865 PC south bridges, the DS12887 or M48T86, some multifunction 866 or LPC bus chips, and so on. 867 868 Your system will need to define the platform device used by 869 this driver, otherwise it won't be accessible. This means 870 you can safely enable this driver if you don't know whether 871 or not your board has this kind of hardware. 872 873 This driver can also be built as a module. If so, the module 874 will be called rtc-cmos. 875 876config RTC_DRV_ALPHA 877 bool "Alpha PC-style CMOS" 878 depends on ALPHA 879 select RTC_MC146818_LIB 880 default y 881 help 882 Direct support for the real-time clock found on every Alpha 883 system, specifically MC146818 compatibles. If in doubt, say Y. 884 885config RTC_DRV_VRTC 886 tristate "Virtual RTC for Intel MID platforms" 887 depends on X86_INTEL_MID 888 default y if X86_INTEL_MID 889 890 help 891 Say "yes" here to get direct support for the real time clock 892 found on Moorestown platforms. The VRTC is a emulated RTC that 893 derives its clock source from a real RTC in the PMIC. The MC146818 894 style programming interface is mostly conserved, but any 895 updates are done via IPC calls to the system controller FW. 896 897config RTC_DRV_DS1216 898 tristate "Dallas DS1216" 899 depends on SNI_RM 900 help 901 If you say yes here you get support for the Dallas DS1216 RTC chips. 902 903config RTC_DRV_DS1286 904 tristate "Dallas DS1286" 905 depends on HAS_IOMEM 906 help 907 If you say yes here you get support for the Dallas DS1286 RTC chips. 908 909config RTC_DRV_DS1511 910 tristate "Dallas DS1511" 911 depends on HAS_IOMEM 912 help 913 If you say yes here you get support for the 914 Dallas DS1511 timekeeping/watchdog chip. 915 916 This driver can also be built as a module. If so, the module 917 will be called rtc-ds1511. 918 919config RTC_DRV_DS1553 920 tristate "Maxim/Dallas DS1553" 921 depends on HAS_IOMEM 922 help 923 If you say yes here you get support for the 924 Maxim/Dallas DS1553 timekeeping chip. 925 926 This driver can also be built as a module. If so, the module 927 will be called rtc-ds1553. 928 929config RTC_DRV_DS1685_FAMILY 930 tristate "Dallas/Maxim DS1685 Family" 931 help 932 If you say yes here you get support for the Dallas/Maxim DS1685 933 family of real time chips. This family includes the DS1685/DS1687, 934 DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and 935 DS17885/DS17887 chips. 936 937 This driver can also be built as a module. If so, the module 938 will be called rtc-ds1685. 939 940choice 941 prompt "Subtype" 942 depends on RTC_DRV_DS1685_FAMILY 943 default RTC_DRV_DS1685 944 945config RTC_DRV_DS1685 946 bool "DS1685/DS1687" 947 help 948 This enables support for the Dallas/Maxim DS1685/DS1687 real time 949 clock chip. 950 951 This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30) 952 systems, as well as EPPC-405-UC modules by electronic system design 953 GmbH. 954 955config RTC_DRV_DS1689 956 bool "DS1689/DS1693" 957 help 958 This enables support for the Dallas/Maxim DS1689/DS1693 real time 959 clock chip. 960 961 This is an older RTC chip, supplanted by the DS1685/DS1687 above, 962 which supports a few minor features such as Vcc, Vbat, and Power 963 Cycle counters, plus a customer-specific, 8-byte ROM/Serial number. 964 965 It also works for the even older DS1688/DS1691 RTC chips, which are 966 virtually the same and carry the same model number. Both chips 967 have 114 bytes of user NVRAM. 968 969config RTC_DRV_DS17285 970 bool "DS17285/DS17287" 971 help 972 This enables support for the Dallas/Maxim DS17285/DS17287 real time 973 clock chip. 974 975 This chip features 2kb of extended NV-SRAM. It may possibly be 976 found in some SGI O2 systems (rare). 977 978config RTC_DRV_DS17485 979 bool "DS17485/DS17487" 980 help 981 This enables support for the Dallas/Maxim DS17485/DS17487 real time 982 clock chip. 983 984 This chip features 4kb of extended NV-SRAM. 985 986config RTC_DRV_DS17885 987 bool "DS17885/DS17887" 988 help 989 This enables support for the Dallas/Maxim DS17885/DS17887 real time 990 clock chip. 991 992 This chip features 8kb of extended NV-SRAM. 993 994endchoice 995 996config RTC_DS1685_PROC_REGS 997 bool "Display register values in /proc" 998 depends on RTC_DRV_DS1685_FAMILY && PROC_FS 999 help 1000 Enable this to display a readout of all of the RTC registers in 1001 /proc/drivers/rtc. Keep in mind that this can potentially lead 1002 to lost interrupts, as reading Control Register C will clear 1003 all pending IRQ flags. 1004 1005 Unless you are debugging this driver, choose N. 1006 1007config RTC_DS1685_SYSFS_REGS 1008 bool "SysFS access to RTC register bits" 1009 depends on RTC_DRV_DS1685_FAMILY && SYSFS 1010 help 1011 Enable this to provide access to the RTC control register bits 1012 in /sys. Some of the bits are read-write, others are read-only. 1013 1014 Keep in mind that reading Control C's bits automatically clears 1015 all pending IRQ flags - this can cause lost interrupts. 1016 1017 If you know that you need access to these bits, choose Y, Else N. 1018 1019config RTC_DRV_DS1742 1020 tristate "Maxim/Dallas DS1742/1743" 1021 depends on HAS_IOMEM 1022 help 1023 If you say yes here you get support for the 1024 Maxim/Dallas DS1742/1743 timekeeping chip. 1025 1026 This driver can also be built as a module. If so, the module 1027 will be called rtc-ds1742. 1028 1029config RTC_DRV_DS2404 1030 tristate "Maxim/Dallas DS2404" 1031 help 1032 If you say yes here you get support for the 1033 Dallas DS2404 RTC chip. 1034 1035 This driver can also be built as a module. If so, the module 1036 will be called rtc-ds2404. 1037 1038config RTC_DRV_DA9052 1039 tristate "Dialog DA9052/DA9053 RTC" 1040 depends on PMIC_DA9052 1041 help 1042 Say y here to support the RTC driver for Dialog Semiconductor 1043 DA9052-BC and DA9053-AA/Bx PMICs. 1044 1045config RTC_DRV_DA9055 1046 tristate "Dialog Semiconductor DA9055 RTC" 1047 depends on MFD_DA9055 1048 help 1049 If you say yes here you will get support for the 1050 RTC of the Dialog DA9055 PMIC. 1051 1052 This driver can also be built as a module. If so, the module 1053 will be called rtc-da9055 1054 1055config RTC_DRV_DA9063 1056 tristate "Dialog Semiconductor DA9063/DA9062 RTC" 1057 depends on MFD_DA9063 || MFD_DA9062 1058 help 1059 If you say yes here you will get support for the RTC subsystem 1060 for the Dialog Semiconductor PMIC chips DA9063 and DA9062. 1061 1062 This driver can also be built as a module. If so, the module 1063 will be called "rtc-da9063". 1064 1065config RTC_DRV_EFI 1066 tristate "EFI RTC" 1067 depends on EFI && !X86 1068 help 1069 If you say yes here you will get support for the EFI 1070 Real Time Clock. 1071 1072 This driver can also be built as a module. If so, the module 1073 will be called rtc-efi. 1074 1075config RTC_DRV_STK17TA8 1076 tristate "Simtek STK17TA8" 1077 depends on HAS_IOMEM 1078 help 1079 If you say yes here you get support for the 1080 Simtek STK17TA8 timekeeping chip. 1081 1082 This driver can also be built as a module. If so, the module 1083 will be called rtc-stk17ta8. 1084 1085config RTC_DRV_M48T86 1086 tristate "ST M48T86/Dallas DS12887" 1087 help 1088 If you say Y here you will get support for the 1089 ST M48T86 and Dallas DS12887 RTC chips. 1090 1091 This driver can also be built as a module. If so, the module 1092 will be called rtc-m48t86. 1093 1094config RTC_DRV_M48T35 1095 tristate "ST M48T35" 1096 depends on HAS_IOMEM 1097 help 1098 If you say Y here you will get support for the 1099 ST M48T35 RTC chip. 1100 1101 This driver can also be built as a module, if so, the module 1102 will be called "rtc-m48t35". 1103 1104config RTC_DRV_M48T59 1105 tristate "ST M48T59/M48T08/M48T02" 1106 depends on HAS_IOMEM 1107 help 1108 If you say Y here you will get support for the 1109 ST M48T59 RTC chip and compatible ST M48T08 and M48T02. 1110 1111 These chips are usually found in Sun SPARC and UltraSPARC 1112 workstations. 1113 1114 This driver can also be built as a module, if so, the module 1115 will be called "rtc-m48t59". 1116 1117config RTC_DRV_MSM6242 1118 tristate "Oki MSM6242" 1119 depends on HAS_IOMEM 1120 help 1121 If you say yes here you get support for the Oki MSM6242 1122 timekeeping chip. It is used in some Amiga models (e.g. A2000). 1123 1124 This driver can also be built as a module. If so, the module 1125 will be called rtc-msm6242. 1126 1127config RTC_DRV_BQ4802 1128 tristate "TI BQ4802" 1129 depends on HAS_IOMEM 1130 help 1131 If you say Y here you will get support for the TI 1132 BQ4802 RTC chip. 1133 1134 This driver can also be built as a module. If so, the module 1135 will be called rtc-bq4802. 1136 1137config RTC_DRV_RP5C01 1138 tristate "Ricoh RP5C01" 1139 depends on HAS_IOMEM 1140 help 1141 If you say yes here you get support for the Ricoh RP5C01 1142 timekeeping chip. It is used in some Amiga models (e.g. A3000 1143 and A4000). 1144 1145 This driver can also be built as a module. If so, the module 1146 will be called rtc-rp5c01. 1147 1148config RTC_DRV_V3020 1149 tristate "EM Microelectronic V3020" 1150 help 1151 If you say yes here you will get support for the 1152 EM Microelectronic v3020 RTC chip. 1153 1154 This driver can also be built as a module. If so, the module 1155 will be called rtc-v3020. 1156 1157config RTC_DRV_WM831X 1158 tristate "Wolfson Microelectronics WM831x RTC" 1159 depends on MFD_WM831X 1160 help 1161 If you say yes here you will get support for the RTC subsystem 1162 of the Wolfson Microelectronics WM831X series PMICs. 1163 1164 This driver can also be built as a module. If so, the module 1165 will be called "rtc-wm831x". 1166 1167config RTC_DRV_WM8350 1168 tristate "Wolfson Microelectronics WM8350 RTC" 1169 depends on MFD_WM8350 1170 help 1171 If you say yes here you will get support for the RTC subsystem 1172 of the Wolfson Microelectronics WM8350. 1173 1174 This driver can also be built as a module. If so, the module 1175 will be called "rtc-wm8350". 1176 1177config RTC_DRV_SPEAR 1178 tristate "SPEAR ST RTC" 1179 depends on PLAT_SPEAR || COMPILE_TEST 1180 default y 1181 help 1182 If you say Y here you will get support for the RTC found on 1183 spear 1184 1185config RTC_DRV_PCF50633 1186 depends on MFD_PCF50633 1187 tristate "NXP PCF50633 RTC" 1188 help 1189 If you say yes here you get support for the RTC subsystem of the 1190 NXP PCF50633 used in embedded systems. 1191 1192config RTC_DRV_AB3100 1193 tristate "ST-Ericsson AB3100 RTC" 1194 depends on AB3100_CORE 1195 default y if AB3100_CORE 1196 help 1197 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC 1198 support. This chip contains a battery- and capacitor-backed RTC. 1199 1200config RTC_DRV_AB8500 1201 tristate "ST-Ericsson AB8500 RTC" 1202 depends on AB8500_CORE 1203 select RTC_INTF_DEV 1204 select RTC_INTF_DEV_UIE_EMUL 1205 help 1206 Select this to enable the ST-Ericsson AB8500 power management IC RTC 1207 support. This chip contains a battery- and capacitor-backed RTC. 1208 1209config RTC_DRV_NUC900 1210 tristate "NUC910/NUC920 RTC driver" 1211 depends on ARCH_W90X900 || COMPILE_TEST 1212 help 1213 If you say yes here you get support for the RTC subsystem of the 1214 NUC910/NUC920 used in embedded systems. 1215 1216config RTC_DRV_OPAL 1217 tristate "IBM OPAL RTC driver" 1218 depends on PPC_POWERNV 1219 default y 1220 help 1221 If you say yes here you get support for the PowerNV platform RTC 1222 driver based on OPAL interfaces. 1223 1224 This driver can also be built as a module. If so, the module 1225 will be called rtc-opal. 1226 1227config RTC_DRV_ZYNQMP 1228 tristate "Xilinx Zynq Ultrascale+ MPSoC RTC" 1229 depends on OF 1230 help 1231 If you say yes here you get support for the RTC controller found on 1232 Xilinx Zynq Ultrascale+ MPSoC. 1233 1234comment "on-CPU RTC drivers" 1235 1236config RTC_DRV_ASM9260 1237 tristate "Alphascale asm9260 RTC" 1238 depends on MACH_ASM9260 || COMPILE_TEST 1239 help 1240 If you say yes here you get support for the RTC on the 1241 Alphascale asm9260 SoC. 1242 1243 This driver can also be built as a module. If so, the module 1244 will be called rtc-asm9260. 1245 1246config RTC_DRV_DAVINCI 1247 tristate "TI DaVinci RTC" 1248 depends on ARCH_DAVINCI_DM365 || COMPILE_TEST 1249 help 1250 If you say yes here you get support for the RTC on the 1251 DaVinci platforms (DM365). 1252 1253 This driver can also be built as a module. If so, the module 1254 will be called rtc-davinci. 1255 1256config RTC_DRV_DIGICOLOR 1257 tristate "Conexant Digicolor RTC" 1258 depends on ARCH_DIGICOLOR || COMPILE_TEST 1259 help 1260 If you say yes here you get support for the RTC on Conexant 1261 Digicolor platforms. This currently includes the CX92755 SoC. 1262 1263 This driver can also be built as a module. If so, the module 1264 will be called rtc-digicolor. 1265 1266config RTC_DRV_IMXDI 1267 tristate "Freescale IMX DryIce Real Time Clock" 1268 depends on ARCH_MXC 1269 help 1270 Support for Freescale IMX DryIce RTC 1271 1272 This driver can also be built as a module, if so, the module 1273 will be called "rtc-imxdi". 1274 1275config RTC_DRV_OMAP 1276 tristate "TI OMAP Real Time Clock" 1277 depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST 1278 depends on OF 1279 depends on PINCTRL 1280 select GENERIC_PINCONF 1281 help 1282 Say "yes" here to support the on chip real time clock 1283 present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx. 1284 1285 This driver can also be built as a module, if so, module 1286 will be called rtc-omap. 1287 1288config HAVE_S3C_RTC 1289 bool 1290 help 1291 This will include RTC support for Samsung SoCs. If 1292 you want to include RTC support for any machine, kindly 1293 select this in the respective mach-XXXX/Kconfig file. 1294 1295config RTC_DRV_S3C 1296 tristate "Samsung S3C series SoC RTC" 1297 depends on ARCH_S3C64XX || HAVE_S3C_RTC || COMPILE_TEST 1298 help 1299 RTC (Realtime Clock) driver for the clock inbuilt into the 1300 Samsung S3C24XX series of SoCs. This can provide periodic 1301 interrupt rates from 1Hz to 64Hz for user programs, and 1302 wakeup from Alarm. 1303 1304 The driver currently supports the common features on all the 1305 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440 1306 and S3C2442. 1307 1308 This driver can also be build as a module. If so, the module 1309 will be called rtc-s3c. 1310 1311config RTC_DRV_EP93XX 1312 tristate "Cirrus Logic EP93XX" 1313 depends on ARCH_EP93XX || COMPILE_TEST 1314 help 1315 If you say yes here you get support for the 1316 RTC embedded in the Cirrus Logic EP93XX processors. 1317 1318 This driver can also be built as a module. If so, the module 1319 will be called rtc-ep93xx. 1320 1321config RTC_DRV_SA1100 1322 tristate "SA11x0/PXA2xx/PXA910" 1323 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP 1324 help 1325 If you say Y here you will get access to the real time clock 1326 built into your SA11x0 or PXA2xx CPU. 1327 1328 To compile this driver as a module, choose M here: the 1329 module will be called rtc-sa1100. 1330 1331config RTC_DRV_SH 1332 tristate "SuperH On-Chip RTC" 1333 depends on SUPERH || ARCH_RENESAS 1334 help 1335 Say Y here to enable support for the on-chip RTC found in 1336 most SuperH processors. This RTC is also found in RZ/A SoCs. 1337 1338 To compile this driver as a module, choose M here: the 1339 module will be called rtc-sh. 1340 1341config RTC_DRV_VR41XX 1342 tristate "NEC VR41XX" 1343 depends on CPU_VR41XX || COMPILE_TEST 1344 help 1345 If you say Y here you will get access to the real time clock 1346 built into your NEC VR41XX CPU. 1347 1348 To compile this driver as a module, choose M here: the 1349 module will be called rtc-vr41xx. 1350 1351config RTC_DRV_PL030 1352 tristate "ARM AMBA PL030 RTC" 1353 depends on ARM_AMBA 1354 help 1355 If you say Y here you will get access to ARM AMBA 1356 PrimeCell PL030 RTC found on certain ARM SOCs. 1357 1358 To compile this driver as a module, choose M here: the 1359 module will be called rtc-pl030. 1360 1361config RTC_DRV_PL031 1362 tristate "ARM AMBA PL031 RTC" 1363 depends on ARM_AMBA 1364 help 1365 If you say Y here you will get access to ARM AMBA 1366 PrimeCell PL031 RTC found on certain ARM SOCs. 1367 1368 To compile this driver as a module, choose M here: the 1369 module will be called rtc-pl031. 1370 1371config RTC_DRV_AT32AP700X 1372 tristate "AT32AP700X series RTC" 1373 depends on PLATFORM_AT32AP || COMPILE_TEST 1374 help 1375 Driver for the internal RTC (Realtime Clock) on Atmel AVR32 1376 AT32AP700x family processors. 1377 1378config RTC_DRV_AT91RM9200 1379 tristate "AT91RM9200 or some AT91SAM9 RTC" 1380 depends on ARCH_AT91 || COMPILE_TEST 1381 help 1382 Driver for the internal RTC (Realtime Clock) module found on 1383 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips 1384 this is powered by the backup power supply. 1385 1386config RTC_DRV_AT91SAM9 1387 tristate "AT91SAM9 RTT as RTC" 1388 depends on ARCH_AT91 || COMPILE_TEST 1389 select MFD_SYSCON 1390 help 1391 Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which 1392 can be used as an RTC thanks to the backup power supply (e.g. a 1393 small coin cell battery) which keeps this block and the GPBR 1394 (General Purpose Backup Registers) block powered when the device 1395 is shutdown. 1396 Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd 1397 probably want to use the real RTC block instead of the "RTT as an 1398 RTC" driver. 1399 1400config RTC_DRV_AU1XXX 1401 tristate "Au1xxx Counter0 RTC support" 1402 depends on MIPS_ALCHEMY 1403 help 1404 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year 1405 counter) to be used as a RTC. 1406 1407 This driver can also be built as a module. If so, the module 1408 will be called rtc-au1xxx. 1409 1410config RTC_DRV_BFIN 1411 tristate "Blackfin On-Chip RTC" 1412 depends on BLACKFIN && !BF561 1413 help 1414 If you say yes here you will get support for the 1415 Blackfin On-Chip Real Time Clock. 1416 1417 This driver can also be built as a module. If so, the module 1418 will be called rtc-bfin. 1419 1420config RTC_DRV_RS5C313 1421 tristate "Ricoh RS5C313" 1422 depends on SH_LANDISK 1423 help 1424 If you say yes here you get support for the Ricoh RS5C313 RTC chips. 1425 1426config RTC_DRV_GENERIC 1427 tristate "Generic RTC support" 1428 # Please consider writing a new RTC driver instead of using the generic 1429 # RTC abstraction 1430 depends on PARISC || M68K || PPC || SUPERH32 || COMPILE_TEST 1431 help 1432 Say Y or M here to enable RTC support on systems using the generic 1433 RTC abstraction. If you do not know what you are doing, you should 1434 just say Y. 1435 1436config RTC_DRV_PXA 1437 tristate "PXA27x/PXA3xx" 1438 depends on ARCH_PXA 1439 select RTC_DRV_SA1100 1440 help 1441 If you say Y here you will get access to the real time clock 1442 built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs 1443 consisting of an SA1100 compatible RTC and the extended PXA RTC. 1444 1445 This RTC driver uses PXA RTC registers available since pxa27x 1446 series (RDxR, RYxR) instead of legacy RCNR, RTAR. 1447 1448config RTC_DRV_VT8500 1449 tristate "VIA/WonderMedia 85xx SoC RTC" 1450 depends on ARCH_VT8500 || COMPILE_TEST 1451 help 1452 If you say Y here you will get access to the real time clock 1453 built into your VIA VT8500 SoC or its relatives. 1454 1455 1456config RTC_DRV_SUN4V 1457 bool "SUN4V Hypervisor RTC" 1458 depends on SPARC64 1459 help 1460 If you say Y here you will get support for the Hypervisor 1461 based RTC on SUN4V systems. 1462 1463config RTC_DRV_SUN6I 1464 bool "Allwinner A31 RTC" 1465 default MACH_SUN6I || MACH_SUN8I 1466 depends on COMMON_CLK 1467 depends on ARCH_SUNXI || COMPILE_TEST 1468 help 1469 If you say Y here you will get support for the RTC found in 1470 some Allwinner SoCs like the A31 or the A64. 1471 1472config RTC_DRV_SUNXI 1473 tristate "Allwinner sun4i/sun7i RTC" 1474 depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST 1475 help 1476 If you say Y here you will get support for the RTC found on 1477 Allwinner A10/A20. 1478 1479config RTC_DRV_STARFIRE 1480 bool "Starfire RTC" 1481 depends on SPARC64 1482 help 1483 If you say Y here you will get support for the RTC found on 1484 Starfire systems. 1485 1486config RTC_DRV_TX4939 1487 tristate "TX4939 SoC" 1488 depends on SOC_TX4939 1489 help 1490 Driver for the internal RTC (Realtime Clock) module found on 1491 Toshiba TX4939 SoC. 1492 1493config RTC_DRV_MV 1494 tristate "Marvell SoC RTC" 1495 depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST 1496 help 1497 If you say yes here you will get support for the in-chip RTC 1498 that can be found in some of Marvell's SoC devices, such as 1499 the Kirkwood 88F6281 and 88F6192. 1500 1501 This driver can also be built as a module. If so, the module 1502 will be called rtc-mv. 1503 1504config RTC_DRV_ARMADA38X 1505 tristate "Armada 38x Marvell SoC RTC" 1506 depends on ARCH_MVEBU || COMPILE_TEST 1507 help 1508 If you say yes here you will get support for the in-chip RTC 1509 that can be found in the Armada 38x Marvell's SoC device 1510 1511 This driver can also be built as a module. If so, the module 1512 will be called armada38x-rtc. 1513 1514config RTC_DRV_FTRTC010 1515 tristate "Faraday Technology FTRTC010 RTC" 1516 depends on HAS_IOMEM 1517 default ARCH_GEMINI 1518 help 1519 If you say Y here you will get support for the 1520 Faraday Technolog FTRTC010 found on e.g. Gemini SoC's. 1521 1522 This driver can also be built as a module. If so, the module 1523 will be called rtc-ftrtc010. 1524 1525config RTC_DRV_PS3 1526 tristate "PS3 RTC" 1527 depends on PPC_PS3 1528 help 1529 If you say yes here you will get support for the RTC on PS3. 1530 1531 This driver can also be built as a module. If so, the module 1532 will be called rtc-ps3. 1533 1534config RTC_DRV_COH901331 1535 tristate "ST-Ericsson COH 901 331 RTC" 1536 depends on ARCH_U300 || COMPILE_TEST 1537 help 1538 If you say Y here you will get access to ST-Ericsson 1539 COH 901 331 RTC clock found in some ST-Ericsson Mobile 1540 Platforms. 1541 1542 This driver can also be built as a module. If so, the module 1543 will be called "rtc-coh901331". 1544 1545 1546config RTC_DRV_STMP 1547 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC" 1548 depends on ARCH_MXS || COMPILE_TEST 1549 select STMP_DEVICE 1550 help 1551 If you say yes here you will get support for the onboard 1552 STMP3xxx/i.MX23/i.MX28 RTC. 1553 1554 This driver can also be built as a module. If so, the module 1555 will be called rtc-stmp3xxx. 1556 1557config RTC_DRV_PCAP 1558 tristate "PCAP RTC" 1559 depends on EZX_PCAP 1560 help 1561 If you say Y here you will get support for the RTC found on 1562 the PCAP2 ASIC used on some Motorola phones. 1563 1564config RTC_DRV_MC13XXX 1565 depends on MFD_MC13XXX 1566 tristate "Freescale MC13xxx RTC" 1567 help 1568 This enables support for the RTCs found on Freescale's PMICs 1569 MC13783 and MC13892. 1570 1571config RTC_DRV_MPC5121 1572 tristate "Freescale MPC5121 built-in RTC" 1573 depends on PPC_MPC512x || PPC_MPC52xx 1574 help 1575 If you say yes here you will get support for the 1576 built-in RTC on MPC5121 or on MPC5200. 1577 1578 This driver can also be built as a module. If so, the module 1579 will be called rtc-mpc5121. 1580 1581config RTC_DRV_JZ4740 1582 tristate "Ingenic JZ4740 SoC" 1583 depends on MACH_INGENIC || COMPILE_TEST 1584 help 1585 If you say yes here you get support for the Ingenic JZ47xx SoCs RTC 1586 controllers. 1587 1588 This driver can also be buillt as a module. If so, the module 1589 will be called rtc-jz4740. 1590 1591config RTC_DRV_LPC24XX 1592 tristate "NXP RTC for LPC178x/18xx/408x/43xx" 1593 depends on ARCH_LPC18XX || COMPILE_TEST 1594 depends on OF && HAS_IOMEM 1595 help 1596 This enables support for the NXP RTC found which can be found on 1597 NXP LPC178x/18xx/408x/43xx devices. 1598 1599 If you have one of the devices above enable this driver to use 1600 the hardware RTC. This driver can also be built as a module. If 1601 so, the module will be called rtc-lpc24xx. 1602 1603config RTC_DRV_LPC32XX 1604 depends on ARCH_LPC32XX || COMPILE_TEST 1605 tristate "NXP LPC32XX RTC" 1606 help 1607 This enables support for the NXP RTC in the LPC32XX 1608 1609 This driver can also be built as a module. If so, the module 1610 will be called rtc-lpc32xx. 1611 1612config RTC_DRV_PM8XXX 1613 tristate "Qualcomm PMIC8XXX RTC" 1614 depends on MFD_PM8XXX || MFD_SPMI_PMIC || COMPILE_TEST 1615 help 1616 If you say yes here you get support for the 1617 Qualcomm PMIC8XXX RTC. 1618 1619 To compile this driver as a module, choose M here: the 1620 module will be called rtc-pm8xxx. 1621 1622config RTC_DRV_TEGRA 1623 tristate "NVIDIA Tegra Internal RTC driver" 1624 depends on ARCH_TEGRA || COMPILE_TEST 1625 help 1626 If you say yes here you get support for the 1627 Tegra 200 series internal RTC module. 1628 1629 This drive can also be built as a module. If so, the module 1630 will be called rtc-tegra. 1631 1632config RTC_DRV_TILE 1633 tristate "Tilera hypervisor RTC support" 1634 depends on TILE 1635 help 1636 Enable support for the Linux driver side of the Tilera 1637 hypervisor's real-time clock interface. 1638 1639config RTC_DRV_PUV3 1640 tristate "PKUnity v3 RTC support" 1641 depends on ARCH_PUV3 1642 help 1643 This enables support for the RTC in the PKUnity-v3 SoCs. 1644 1645 This drive can also be built as a module. If so, the module 1646 will be called rtc-puv3. 1647 1648config RTC_DRV_LOONGSON1 1649 tristate "loongson1 RTC support" 1650 depends on MACH_LOONGSON32 1651 help 1652 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year 1653 counter) to be used as a RTC. 1654 1655 This driver can also be built as a module. If so, the module 1656 will be called rtc-ls1x. 1657 1658config RTC_DRV_MXC 1659 tristate "Freescale MXC Real Time Clock" 1660 depends on ARCH_MXC 1661 help 1662 If you say yes here you get support for the Freescale MXC 1663 RTC module. 1664 1665 This driver can also be built as a module, if so, the module 1666 will be called "rtc-mxc". 1667 1668config RTC_DRV_SNVS 1669 tristate "Freescale SNVS RTC support" 1670 select REGMAP_MMIO 1671 depends on HAS_IOMEM 1672 depends on OF 1673 help 1674 If you say yes here you get support for the Freescale SNVS 1675 Low Power (LP) RTC module. 1676 1677 This driver can also be built as a module, if so, the module 1678 will be called "rtc-snvs". 1679 1680config RTC_DRV_SIRFSOC 1681 tristate "SiRFSOC RTC" 1682 depends on ARCH_SIRF 1683 help 1684 Say "yes" here to support the real time clock on SiRF SOC chips. 1685 This driver can also be built as a module called rtc-sirfsoc. 1686 1687config RTC_DRV_ST_LPC 1688 tristate "STMicroelectronics LPC RTC" 1689 depends on ARCH_STI 1690 depends on OF 1691 help 1692 Say Y here to include STMicroelectronics Low Power Controller 1693 (LPC) based RTC support. 1694 1695 To compile this driver as a module, choose M here: the 1696 module will be called rtc-st-lpc. 1697 1698config RTC_DRV_MOXART 1699 tristate "MOXA ART RTC" 1700 depends on ARCH_MOXART || COMPILE_TEST 1701 help 1702 If you say yes here you get support for the MOXA ART 1703 RTC module. 1704 1705 This driver can also be built as a module. If so, the module 1706 will be called rtc-moxart 1707 1708config RTC_DRV_MT6397 1709 tristate "Mediatek Real Time Clock driver" 1710 depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN) 1711 help 1712 This selects the Mediatek(R) RTC driver. RTC is part of Mediatek 1713 MT6397 PMIC. You should enable MT6397 PMIC MFD before select 1714 Mediatek(R) RTC driver. 1715 1716 If you want to use Mediatek(R) RTC interface, select Y or M here. 1717 1718config RTC_DRV_XGENE 1719 tristate "APM X-Gene RTC" 1720 depends on HAS_IOMEM 1721 depends on ARCH_XGENE || COMPILE_TEST 1722 help 1723 If you say yes here you get support for the APM X-Gene SoC real time 1724 clock. 1725 1726 This driver can also be built as a module, if so, the module 1727 will be called "rtc-xgene". 1728 1729config RTC_DRV_PIC32 1730 tristate "Microchip PIC32 RTC" 1731 depends on MACH_PIC32 1732 default y 1733 help 1734 If you say yes here you get support for the PIC32 RTC module. 1735 1736 This driver can also be built as a module. If so, the module 1737 will be called rtc-pic32 1738 1739config RTC_DRV_R7301 1740 tristate "EPSON TOYOCOM RTC-7301SF/DG" 1741 select REGMAP_MMIO 1742 depends on OF && HAS_IOMEM 1743 help 1744 If you say yes here you get support for the EPSON TOYOCOM 1745 RTC-7301SF/DG chips. 1746 1747 This driver can also be built as a module. If so, the module 1748 will be called rtc-r7301. 1749 1750config RTC_DRV_STM32 1751 tristate "STM32 RTC" 1752 select REGMAP_MMIO 1753 depends on ARCH_STM32 || COMPILE_TEST 1754 help 1755 If you say yes here you get support for the STM32 On-Chip 1756 Real Time Clock. 1757 1758 This driver can also be built as a module, if so, the module 1759 will be called "rtc-stm32". 1760 1761config RTC_DRV_CPCAP 1762 depends on MFD_CPCAP 1763 tristate "Motorola CPCAP RTC" 1764 help 1765 Say y here for CPCAP rtc found on some Motorola phones 1766 and tablets such as Droid 4. 1767 1768comment "HID Sensor RTC drivers" 1769 1770config RTC_DRV_HID_SENSOR_TIME 1771 tristate "HID Sensor Time" 1772 depends on USB_HID 1773 select IIO 1774 select HID_SENSOR_HUB 1775 select HID_SENSOR_IIO_COMMON 1776 help 1777 Say yes here to build support for the HID Sensors of type Time. 1778 This drivers makes such sensors available as RTCs. 1779 1780 If this driver is compiled as a module, it will be named 1781 rtc-hid-sensor-time. 1782 1783 1784endif # RTC_CLASS 1785