Lines Matching +full:stm32 +full:- +full:rtc

1 # SPDX-License-Identifier: GPL-2.0-only
3 # RTC class/drivers configuration
19 	  Generic RTC class support. If you say yes here, you will
26 	bool "Set system time from RTC on startup and resume"
30 	  the value read from a specified RTC device. This is useful to avoid
34 	string "RTC used to set the system time"
38 	  The RTC device that will be used to (re)initialize the system
44 	  This clock should be battery-backed, so that it reads the correct
45 	  time when the system boots from a power-off state. Otherwise, your
50 	  sleep states. Do not specify an RTC here unless it stays powered
54 	bool "Set the RTC time based on NTP synchronization"
58 	  in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
62 	string "RTC used to synchronize NTP adjustment"
67 	  The RTC device used for NTP synchronization. The main difference
73 	bool "RTC debug support"
75 	  Say yes here to enable debugging support in the RTC framework
76 	  and individual RTC drivers.
79 	bool "RTC non volatile storage support"
86 comment "RTC interfaces"
89 	bool "/sys/class/rtc/rtcN (sysfs)"
94 	  /sys/class/rtc/rtc0 through /sys/.../rtcN.
99 	bool "/proc/driver/rtc (procfs for rtcN)"
103 	  Say yes here if you want to use your system clock RTC through
104 	  the proc interface, /proc/driver/rtc.
106 	  If there is no RTC for the system clock, then the first RTC(rtc0)
120 	  can be accessed as /dev/rtc, which is a name
127 	bool "RTC UIE emulation on dev interface"
130 	  Provides an emulation for RTC_UIE if the underlying rtc chip
132 	  once-per-second update interrupts, used for synchronization.
142 	  RTC test driver. It's a software RTC which can be
143 	  used to test the RTC subsystem APIs. It gets
146 	  on the RTC subsystem. Please read the source code
150 	  will be called rtc-test.
152 comment "I2C RTC drivers"
160 	  If you say yes here you get support for RTC function in Marvell
164 	  will be called rtc-88pm860x.
170 	  If you say yes here you get support for RTC function in Marvell
174 	  will be called rtc-88pm80x.
178 	tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
181 	  AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.
184 	  will be called rtc-ab-b5ze-s3.
188 	tristate "Abracon AB-RTCMC-32.768kHz-EOZ9"
191 	  AB-RTCMC-32.768kHz-EOA9 I2C RTC chip.
194 	  will be called rtc-ab-e0z9.
201 	  families of ultra-low-power  battery- and capacitor-backed real-time
205 	  will be called rtc-abx80x.
208 	tristate "X-Powers AC100"
211 	  If you say yes here you get support for the real-time clock found
212 	  in X-Powers AC100 family peripheral ICs.
215 	  will be called rtc-ac100.
218 	tristate "Broadcom STB wake-timer"
222 	  If you say yes here you get support for the wake-timer found on
226 	  be called rtc-brcmstb-waketimer.
229 	tristate "ams AS3722 RTC driver"
232 	  If you say yes here you get support for the RTC of ams AS3722 PMIC
236 	  will be called rtc-as3722.
239 	tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057"
243 	  If you say yes here you get support for various compatible RTC
246 	  ST M41T00, EPSON RX-8025, Intersil ISL12057 and probably other chips.
247 	  In some cases the RTC must already have been initialized (by
250 	  The first seven registers on these chips hold an RTC, and other
252 	  the RTC/NVRAM backup power, and alarms. NVRAM is visible in
256 	  will be called rtc-ds1307.
259 	bool "Century bit support for rtc-ds1307"
270 	  the RTC date and then boot a kernel with this option set.
276 	  DS1374 real-time clock chips. If an interrupt is associated
280 	  will be called rtc-ds1374.
289 	  real-time clock chips.
298 	  will be called rtc-ds1672.
304 	  Say Y to enable support for the HYM8563 I2C RTC chip. Apart
305 	  from the usual rtc functions it provides a clock output of
309 	  will be called rtc-hym8563.
312 	tristate "TI LP8788 RTC driver"
315 	  Say Y to enable support for the LP8788 RTC/ALARM driver.
321 	  Maxim MAX6900 I2C RTC chip.
324 	  will be called rtc-max6900.
332 	  RTC of Maxim MAX8907 PMIC.
335 	  will be called rtc-max8907.
342 	  RTC of Maxim MAX8925 PMIC.
345 	  will be called rtc-max8925.
352 	  RTC of Maxim MAX8998 PMIC.
355 	  will be called rtc-max8998.
362 	  RTC of Maxim MAX8997 PMIC.
365 	  will be called rtc-max8997.
372 	  RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC.
375 	  will be called rtc-max77686.
378 	tristate "Rockchip RK805/RK808/RK809/RK817/RK818 RTC"
382 	  RTC of RK805, RK809 and RK817, RK808 and RK818 PMIC.
385 	  will be called rk808-rtc.
391 	  Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
394 	  will be called rtc-rs5c372.
400 	  Intersil ISL1208 RTC chip.
403 	  will be called rtc-isl1208.
409 	  Intersil ISL12022 RTC chip.
412 	  will be called rtc-isl12022.
419 	  Intersil ISL12026 RTC chip.
422 	  will be called rtc-isl12026.
428 	  Xicor/Intersil X1205 RTC chip.
431 	  will be called rtc-x1205.
436 	  If you say yes here you get support for the NXP PCF8523 RTC
440 	  will be called rtc-pcf8523.
446 	  If you say yes here you get support for the PCF85063 RTC chip
449 	  will be called rtc-pcf85063.
455 	  If you say yes here you get support for the PCF85363 RTC chip.
458 	  will be called rtc-pcf85363.
460 	  The nvmem interface will be named pcf85363-#, where # is the
461 	  zero-based instance number.
467 	  Philips PCF8563 RTC chip. The Epson RTC8564
471 	  will be called rtc-pcf8563.
477 	  RTC chip found on Acorn RiscPCs. This driver supports the
479 	  the RTC's SRAM. It will work on other platforms with the same
483 	  will be called rtc-pcf8583.
489 	  and M41T80 RTC chips series. Currently, the following chips are
494 	  will be called rtc-m41t80.
497 	bool "ST M41T65/M41T80 series RTC watchdog timer"
501 	  watchdog timer in the ST M41T60 and M41T80 RTC chips series.
504 	tristate "ROHM BD70528 PMIC RTC"
507 	  If you say Y here you will get support for the RTC
511 	  will be called rtc-bd70528.
517 	  BQ32000 I2C RTC chip.
520 	  will be called rtc-bq32k.
523 	tristate "TI DaVinci DM355 EVM RTC"
526 	  Supports the RTC firmware in the MSP430 on the DM355 EVM.
532 	  If you say yes here you get support for the RTC on the
542 	  If you say yes here you get support for the RTC on the
546 	  will be called rtc-twl.
549 	tristate "TI Palmas RTC driver"
552 	  If you say yes here you get support for the RTC of TI PALMA series PMIC
556 	  will be called rtc-palma.
559 	tristate "TI TPS6586X RTC driver"
562 	  TI Power Management IC TPS6586X supports RTC functionality
563 	  along with alarm. This driver supports the RTC driver for
564 	  the TPS6586X RTC module.
567 	tristate "TI TPS65910 RTC driver"
570 	  If you say yes here you get support for the RTC on the
574 	  will be called rtc-tps65910.
577 	tristate "TI TPS80031/TPS80032 RTC driver"
580 	  TI Power Management IC TPS80031 supports RTC functionality
581 	  along with alarm. This driver supports the RTC driver for
582 	  the TPS80031 RTC module.
585 	tristate "RICOH 5T583 RTC driver"
588 	  If you say yes here you get support for the RTC on the
592 	  will be called rtc-rc5t583.
595 	tristate "RICOH RC5T619 RTC driver"
598 	  If you say yes here you get support for the RTC on the
602 	  will be called rtc-rc5t619.
605 	tristate "Seiko Instruments S-35390A"
609 	  Instruments S-35390A.
612 	  will be called rtc-s35390a.
618 	  Ramtron FM3130 RTC chips.
620 	  RTC clock and FRAM. This driver provides only RTC functionality.
623 	  will be called rtc-fm3130.
629 	  If you say yes here you get support for the Epson RX8010SJ RTC
633 	  will be called rtc-rx8010.
636 	tristate "Epson RX-8571/RX-8581"
639 	  If you say yes here you will get support for the Epson RX-8571/
640 	  RX-8581.
643 	  will be called rtc-rx8581.
646 	tristate "Epson RX-8025SA/NB"
649 	  RX-8025SA/NB RTC chips.
652 	  will be called rtc-rx8025.
658 	  Microelectronic EM3027 RTC chips.
661 	  will be called rtc-em3027.
671 	  will be called rtc-rv3028.
681 	  will be called rtc-rv3032.
687 	  Epson RX8900 RTC chips.
690 	  will be called rtc-rv8803.
699 	  RTC of Samsung S2MPS14 and S5M PMIC series.
702 	  will be called rtc-s5m.
709 	  SD3078 RTC chips.
712 	  will be called rtc-sd3078
716 comment "SPI RTC drivers"
724 	  ST M41T93 SPI RTC chip.
727 	  will be called rtc-m41t93.
733 	  ST M41T94 SPI RTC chip.
736 	  will be called rtc-m41t94.
742 	  If you say yes here you get support for the Dallas DS1302 RTC chips.
745 	  will be called rtc-ds1302.
755 	  will be called rtc-ds1305.
766 	  will be called rtc-ds1343.
775 	  This driver only supports the RTC feature, and not other chip
779 	  will be called rtc-ds1347.
787 	  This driver supports the RTC feature and trickle charging but not
791 	  will be called rtc-ds1390.
797 	  Maxim MAX6916 SPI RTC chip.
799 	  This driver only supports the RTC feature, and not other chip
803 	  will be called rtc-max6916.
806 	tristate "Epson RTC-9701JE"
809 	  Epson RTC-9701JE SPI RTC chip.
812 	  will be called rtc-r9701.
815 	tristate "Epson RX-4581"
817 	  If you say yes here you will get support for the Epson RX-4581.
820 	  will be called rtc-rx4581.
823 	tristate "Epson RX-6110"
826 	  If you say yes here you will get support for the Epson RX-6610.
829 	  will be called rtc-rx6110.
835 	  Ricoh RS5C348A and RS5C348B RTC chips.
838 	  will be called rtc-rs5c348.
844 	  Maxim MAX6902 SPI RTC chip.
847 	  will be called rtc-max6902.
854 	  RTC chip.
857 	  will be called rtc-pcf2123.
865 	  will be called rtc-mcp795.
879 comment "SPI and I2C RTC drivers"
888 	  DS3232 and DS3234 real-time clock chips. If an interrupt is associated
892 	  will be called rtc-ds3232.
900 	  rtc-ds3232
909 	  If you say yes here you get support for the NXP PCF2127/29 RTC
918 	  will be called rtc-pcf2127.
927 	  RV3029 and RV3049 RTC chips.
930 	  will be called rtc-rv3029c2.
939 	  rtc-rv3029.
941 comment "Platform RTC drivers"
943 # this 'CMOS' RTC driver is arch dependent because it requires
948 	tristate "PC-style 'CMOS'"
954 	  found in every PC or ACPI-based system, and some other boards.
965 	  will be called rtc-cmos.
968 	bool "Alpha PC-style CMOS"
973 	  Direct support for the real-time clock found on every Alpha
977 	tristate "Virtual RTC for Intel MID platforms"
983 	found on Moorestown platforms. The VRTC is a emulated RTC that
984 	derives its clock source from a real RTC in the PMIC. The MC146818
992 	  If you say yes here you get support for the Dallas DS1216 RTC chips.
998 	  If you say yes here you get support for the Dallas DS1286 RTC chips.
1008 	  will be called rtc-ds1511.
1018 	  will be called rtc-ds1553.
1029 	  will be called rtc-ds1685.
1043 	  systems, as well as EPPC-405-UC modules by electronic system design
1052 	  This is an older RTC chip, supplanted by the DS1685/DS1687 above,
1054 	  Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
1056 	  It also works for the even older DS1688/DS1691 RTC chips, which are
1066 	  This chip features 2kb of extended NV-SRAM.  It may possibly be
1075 	  This chip features 4kb of extended NV-SRAM.
1083 	  This chip features 8kb of extended NV-SRAM.
1095 	  will be called rtc-ds1742.
1101 	  Dallas DS2404 RTC chip.
1104 	  will be called rtc-ds2404.
1107 	tristate "Dialog DA9052/DA9053 RTC"
1110 	  Say y here to support the RTC driver for Dialog Semiconductor
1111 	  DA9052-BC and DA9053-AA/Bx PMICs.
1114 	tristate "Dialog Semiconductor DA9055 RTC"
1118 	  RTC of the Dialog DA9055 PMIC.
1121 	  will be called rtc-da9055
1124 	tristate "Dialog Semiconductor DA9063/DA9062 RTC"
1127 	  If you say yes here you will get support for the RTC subsystem
1131 	  will be called "rtc-da9063".
1134 	tristate "EFI RTC"
1141 	  will be called rtc-efi.
1151 	  will be called rtc-stk17ta8.
1157 	  ST M48T86 and Dallas DS12887 RTC chips.
1160 	  will be called rtc-m48t86.
1167 	  ST M48T35 RTC chip.
1170 	  will be called "rtc-m48t35".
1177 	  ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
1183 	  will be called "rtc-m48t59".
1193 	  will be called rtc-msm6242.
1200 	  BQ4802 RTC chip.
1203 	  will be called rtc-bq4802.
1214 	  will be called rtc-rp5c01.
1220 	  EM Microelectronic v3020 RTC chip.
1223 	  will be called rtc-v3020.
1226 	tristate "Wolfson Microelectronics WM831x RTC"
1229 	  If you say yes here you will get support for the RTC subsystem
1233 	  will be called "rtc-wm831x".
1236 	tristate "Wolfson Microelectronics WM8350 RTC"
1239 	  If you say yes here you will get support for the RTC subsystem
1243 	  will be called "rtc-wm8350".
1246 	tristate "Spreadtrum SC27xx RTC"
1249 	  If you say Y here you will get support for the RTC subsystem
1254 	  will be called rtc-sc27xx.
1257 	tristate "SPEAR ST RTC"
1261 	 If you say Y here you will get support for the RTC found on
1266 	tristate "NXP PCF50633 RTC"
1268 	  If you say yes here you get support for the RTC subsystem of the
1272 	tristate "ST-Ericsson AB3100 RTC"
1276 	  Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
1277 	  support. This chip contains a battery- and capacitor-backed RTC.
1280 	tristate "ST-Ericsson AB8500 RTC"
1285 	  Select this to enable the ST-Ericsson AB8500 power management IC RTC
1286 	  support. This chip contains a battery- and capacitor-backed RTC.
1289 	tristate "IBM OPAL RTC driver"
1293 	  If you say yes here you get support for the PowerNV platform RTC
1297 	  will be called rtc-opal.
1300 	tristate "Xilinx Zynq Ultrascale+ MPSoC RTC"
1303 	  If you say yes here you get support for the RTC controller found on
1307 	tristate "Chrome OS EC RTC driver"
1311 	  Chrome OS Embedded Controller's RTC.
1314 	  will be called rtc-cros-ec.
1316 comment "on-CPU RTC drivers"
1319 	tristate "Alphascale asm9260 RTC"
1322 	  If you say yes here you get support for the RTC on the
1326 	  will be called rtc-asm9260.
1329 	tristate "TI DaVinci RTC"
1332 	  If you say yes here you get support for the RTC on the
1336 	  will be called rtc-davinci.
1339 	tristate "Conexant Digicolor RTC"
1342 	  If you say yes here you get support for the RTC on Conexant
1346 	  will be called rtc-digicolor.
1352 	   Support for Freescale IMX DryIce RTC
1355 	   will be called "rtc-imxdi".
1368 	   will be called "rtc-fsl-ftm-alarm".
1371 	tristate "Amlogic Meson RTC"
1375 	   Support for the RTC block on the Amlogic Meson6, Meson8, Meson8b
1379 	   will be called "rtc-meson".
1382 	tristate "Amlogic Meson Virtual RTC"
1387 	  Virtual RTC of Amlogic SoCs.
1390 	  will be called rtc-meson-vrtc.
1400 	  present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
1403 	  will be called rtc-omap.
1408 	  This will include RTC support for Samsung SoCs. If
1409 	  you want to include RTC support for any machine, kindly
1410 	  select this in the respective mach-XXXX/Kconfig file.
1413 	tristate "Samsung S3C series SoC RTC"
1416 	  RTC (Realtime Clock) driver for the clock inbuilt into the
1426 	  will be called rtc-s3c.
1433 	  RTC embedded in the Cirrus Logic EP93XX processors.
1436 	  will be called rtc-ep93xx.
1446 	  module will be called rtc-sa1100.
1449 	tristate "SuperH On-Chip RTC"
1452 	  Say Y here to enable support for the on-chip RTC found in
1453 	  most SuperH processors. This RTC is also found in RZ/A SoCs.
1456 	  module will be called rtc-sh.
1466 	  module will be called rtc-vr41xx.
1469 	tristate "ARM AMBA PL030 RTC"
1473 	  PrimeCell PL030 RTC found on certain ARM SOCs.
1476 	  module will be called rtc-pl030.
1479 	tristate "ARM AMBA PL031 RTC"
1483 	  PrimeCell PL031 RTC found on certain ARM SOCs.
1486 	  module will be called rtc-pl031.
1489 	tristate "AT91RM9200 or some AT91SAM9 RTC"
1493 	  Driver for the internal RTC (Realtime Clock) module found on
1498 	tristate "AT91SAM9 RTT as RTC"
1504 	  can be used as an RTC thanks to the backup power supply (e.g. a
1508 	  Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd
1509 	  probably want to use the real RTC block instead of the "RTT as an
1510 	  RTC" driver.
1513 	tristate "Au1xxx Counter0 RTC support"
1516 	  This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
1517 	  counter) to be used as a RTC.
1520 	  will be called rtc-au1xxx.
1526 	  If you say yes here you get support for the Ricoh RS5C313 RTC chips.
1529 	tristate "Generic RTC support"
1530 	# Please consider writing a new RTC driver instead of using the generic
1531 	# RTC abstraction
1534 	  Say Y or M here to enable RTC support on systems using the generic
1535 	  RTC abstraction. If you do not know what you are doing, you should
1544 	 built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs
1545 	 consisting of an SA1100 compatible RTC and the extended PXA RTC.
1547 	 This RTC driver uses PXA RTC registers available since pxa27x
1551 	tristate "VIA/WonderMedia 85xx SoC RTC"
1559 	bool "SUN4V Hypervisor RTC"
1563 	  based RTC on SUN4V systems.
1566 	bool "Allwinner A31 RTC"
1571 	  If you say Y here you will get support for the RTC found in
1575 	tristate "Allwinner sun4i/sun7i RTC"
1578 	  If you say Y here you will get support for the RTC found on
1582 	bool "Starfire RTC"
1585 	  If you say Y here you will get support for the RTC found on
1592 	  Driver for the internal RTC (Realtime Clock) module found on
1596 	tristate "Marvell SoC RTC"
1599 	  If you say yes here you will get support for the in-chip RTC
1604 	  will be called rtc-mv.
1607 	tristate "Armada 38x Marvell SoC RTC"
1610 	  If you say yes here you will get support for the in-chip RTC
1614 	  will be called armada38x-rtc.
1617 	tristate "Cadence RTC driver"
1620 	  If you say Y here you will get access to Cadence RTC IP
1624 	  module will be called rtc-cadence.
1627 	tristate "Faraday Technology FTRTC010 RTC"
1635 	  will be called rtc-ftrtc010.
1638 	tristate "PS3 RTC"
1641 	  If you say yes here you will get support for the RTC on PS3.
1644 	  will be called rtc-ps3.
1647 	tristate "ST-Ericsson COH 901 331 RTC"
1650 	  If you say Y here you will get access to ST-Ericsson
1651 	  COH 901 331 RTC clock found in some ST-Ericsson Mobile
1655 	  will be called "rtc-coh901331".
1659 	tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
1664 	  STMP3xxx/i.MX23/i.MX28 RTC.
1667 	  will be called rtc-stmp3xxx.
1670 	tristate "PCAP RTC"
1673 	  If you say Y here you will get support for the RTC found on
1678 	tristate "Freescale MC13xxx RTC"
1684 	tristate "Freescale MPC5121 built-in RTC"
1688 	  built-in RTC on MPC5121 or on MPC5200.
1691 	  will be called rtc-mpc5121.
1698 	  If you say yes here you get support for the Ingenic JZ47xx SoCs RTC
1702 	  will be called rtc-jz4740.
1705 	tristate "NXP RTC for LPC178x/18xx/408x/43xx"
1709 	  This enables support for the NXP RTC found which can be found on
1713 	  the hardware RTC. This driver can also be built as a module. If
1714 	  so, the module will be called rtc-lpc24xx.
1718 	tristate "NXP LPC32XX RTC"
1720 	  This enables support for the NXP RTC in the LPC32XX
1723 	  will be called rtc-lpc32xx.
1726 	tristate "Qualcomm PMIC8XXX RTC"
1730 	  Qualcomm PMIC8XXX RTC.
1733 	  module will be called rtc-pm8xxx.
1736 	tristate "NVIDIA Tegra Internal RTC driver"
1740 	  Tegra 200 series internal RTC module.
1743 	  will be called rtc-tegra.
1746 	tristate "loongson1 RTC support"
1749 	  This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1750 	  counter) to be used as a RTC.
1753 	  will be called rtc-ls1x.
1760 	   RTC module.
1763 	   will be called "rtc-mxc".
1773 	   will be called "rtc-mxc_v2".
1776 	tristate "Freescale SNVS RTC support"
1783 	   Low Power (LP) RTC module.
1786 	   will be called "rtc-snvs".
1791 	tristate "NXP i.MX System Controller RTC support"
1794 	   Controller RTC module.
1797 	tristate "SiRFSOC RTC"
1801 	  This driver can also be built as a module called rtc-sirfsoc.
1804 	tristate "STMicroelectronics LPC RTC"
1809 	  (LPC) based RTC support.
1812 	  module will be called rtc-st-lpc.
1815 	tristate "MOXA ART RTC"
1819 	   RTC module.
1822 	   will be called rtc-moxart
1825 	tristate "MediaTek MT2712 SoC based RTC"
1832 	  will be called rtc-mt2712.
1835 	tristate "MediaTek PMIC based RTC"
1838 	  This selects the MediaTek(R) RTC driver. RTC is part of MediaTek
1840 	  MediaTek(R) RTC driver.
1842 	  If you want to use MediaTek(R) RTC interface, select Y or M here.
1845 	tristate "MediaTek SoC based RTC"
1852 	  will be called rtc-mt7622.
1855 	tristate "APM X-Gene RTC"
1859 	  If you say yes here you get support for the APM X-Gene SoC real time
1863 	  will be called "rtc-xgene".
1866 	tristate "Microchip PIC32 RTC"
1870 	   If you say yes here you get support for the PIC32 RTC module.
1873 	   will be called rtc-pic32
1876 	tristate "EPSON TOYOCOM RTC-7301SF/DG"
1881 	   RTC-7301SF/DG chips.
1884 	   will be called rtc-r7301.
1887 	tristate "STM32 RTC"
1891 	   If you say yes here you get support for the STM32 On-Chip
1895 	   will be called "rtc-stm32".
1899 	tristate "Motorola CPCAP RTC"
1901 	   Say y here for CPCAP rtc found on some Motorola phones
1905 	bool "Realtek RTD129x RTC"
1913 	tristate "ASPEED RTC"
1921 	  will be called "rtc-aspeed".
1923 comment "HID Sensor RTC drivers"
1935 	  rtc-hid-sensor-time.
1942 	  Say yes to enable RTC driver for the Goldfish based virtual platform.
1948 	tristate "Wilco EC RTC"