Kconfig - OpenGrok cross reference for /OK3568_Linux_fs/kernel/drivers/rtc/Kconfig

1 # SPDX-License-Identifier: GPL-2.0-only
14 	bool "Real Time Clock"
26 	bool "Set system time from RTC on startup and resume"
29 	  If you say yes here, the system time (wall clock) will be set using
31 	  unnecessary fsck runs at boot time, and to network better.
34 	string "RTC used to set the system time"
41 	  device should record time in UTC, since the kernel won't do
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
49 	  be useful to reinitialize system time when resuming from system
54 	bool "Set the RTC time based on NTP synchronization"
57 	  If you say yes here, the system time (wall clock) will be stored
69 	  one can sleep when setting time, because it runs in the workqueue
132 	  once-per-second update interrupts, used for synchronization.
134 	  The emulation code will read the time from the hardware
144 	  the time from the system clock.
150 	  will be called rtc-test.
164 	  will be called rtc-88pm860x.
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.
236 	  will be called rtc-as3722.
239 	tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057"
246 	  ST M41T00, EPSON RX-8025, Intersil ISL12057 and probably other chips.
256 	  will be called rtc-ds1307.
259 	bool "Century bit support for rtc-ds1307"
264 	  century bit inconditionnally but never used it when reading the time.
267 	  the time was previously set using a kernel predating this option,
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.
309 	  will be called rtc-hym8563.
324 	  will be called rtc-max6900.
335 	  will be called rtc-max8907.
345 	  will be called rtc-max8925.
355 	  will be called rtc-max8998.
365 	  will be called rtc-max8997.
375 	  will be called rtc-max77686.
385 	  will be called rk808-rtc.
395 	  will be called rtc-rockchip.
404 	  will be called rtc-rs5c372.
413 	  will be called rtc-isl1208.
422 	  will be called rtc-isl12022.
432 	  will be called rtc-isl12026.
441 	  will be called rtc-x1205.
450 	  will be called rtc-pcf8523.
459 	  will be called rtc-pcf85063.
468 	  will be called rtc-pcf85363.
470 	  The nvmem interface will be named pcf85363-#, where # is the
471 	  zero-based instance number.
481 	  will be called rtc-pcf8563.
493 	  will be called rtc-pcf8583.
504 	  will be called rtc-m41t80.
521 	  will be called rtc-bd70528.
530 	  will be called rtc-bq32k.
556 	  will be called rtc-twl.
566 	  will be called rtc-palma.
584 	  will be called rtc-tps65910.
602 	  will be called rtc-rc5t583.
612 	  will be called rtc-rc5t619.
615 	tristate "Seiko Instruments S-35390A"
619 	  Instruments S-35390A.
622 	  will be called rtc-s35390a.
633 	  will be called rtc-fm3130.
643 	  will be called rtc-rx8010.
646 	tristate "Epson RX-8571/RX-8581"
649 	  If you say yes here you will get support for the Epson RX-8571/
650 	  RX-8581.
653 	  will be called rtc-rx8581.
656 	tristate "Epson RX-8025SA/NB"
659 	  RX-8025SA/NB RTC chips.
662 	  will be called rtc-rx8025.
671 	  will be called rtc-em3027.
681 	  will be called rtc-rv3028.
691 	  will be called rtc-rv3032.
700 	  will be called rtc-rv8803.
712 	  will be called rtc-s5m.
722 	  will be called rtc-sd3078
737 	  will be called rtc-m41t93.
746 	  will be called rtc-m41t94.
755 	  will be called rtc-ds1302.
761 	  and DS1306 real time clock chips. These support a trickle
765 	  will be called rtc-ds1305.
772 	  Dallas/Maxim DS1343 and DS1344 real time clock chips.
776 	  will be called rtc-ds1343.
789 	  will be called rtc-ds1347.
801 	  will be called rtc-ds1390.
813 	  will be called rtc-max6916.
816 	tristate "Epson RTC-9701JE"
819 	  Epson RTC-9701JE SPI RTC chip.
822 	  will be called rtc-r9701.
825 	tristate "Epson RX-4581"
827 	  If you say yes here you will get support for the Epson RX-4581.
830 	  will be called rtc-rx4581.
833 	tristate "Epson RX-6110"
836 	  If you say yes here you will get support for the Epson RX-6610.
839 	  will be called rtc-rx6110.
848 	  will be called rtc-rs5c348.
857 	  will be called rtc-max6902.
867 	  will be called rtc-pcf2123.
875 	  will be called rtc-mcp795.
898 	  DS3232 and DS3234 real-time clock chips. If an interrupt is associated
902 	  will be called rtc-ds3232.
910 	  rtc-ds3232
928 	  will be called rtc-pcf2127.
940 	  will be called rtc-rv3029c2.
949 	  rtc-rv3029.
958 	tristate "PC-style 'CMOS'"
963 	  Say "yes" here to get direct support for the real time clock
964 	  found in every PC or ACPI-based system, and some other boards.
975 	  will be called rtc-cmos.
978 	bool "Alpha PC-style CMOS"
983 	  Direct support for the real-time clock found on every Alpha
992 	Say "yes" here to get direct support for the real time clock
994 	derives its clock source from a real RTC in the PMIC. The MC146818
1018 	  will be called rtc-ds1511.
1028 	  will be called rtc-ds1553.
1034 	  family of real time chips.  This family includes the DS1685/DS1687,
1039 	  will be called rtc-ds1685.
1049 	  This enables support for the Dallas/Maxim DS1685/DS1687 real time
1053 	  systems, as well as EPPC-405-UC modules by electronic system design
1059 	  This enables support for the Dallas/Maxim DS1689/DS1693 real time
1064 	  Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
1073 	  This enables support for the Dallas/Maxim DS17285/DS17287 real time
1076 	  This chip features 2kb of extended NV-SRAM.  It may possibly be
1082 	  This enables support for the Dallas/Maxim DS17485/DS17487 real time
1085 	  This chip features 4kb of extended NV-SRAM.
1090 	  This enables support for the Dallas/Maxim DS17885/DS17887 real time
1093 	  This chip features 8kb of extended NV-SRAM.
1105 	  will be called rtc-ds1742.
1114 	  will be called rtc-ds2404.
1121 	  DA9052-BC and DA9053-AA/Bx PMICs.
1131 	  will be called rtc-da9055
1141 	  will be called "rtc-da9063".
1148 	  Real Time Clock.
1151 	  will be called rtc-efi.
1161 	  will be called rtc-stk17ta8.
1170 	  will be called rtc-m48t86.
1180 	  will be called "rtc-m48t35".
1193 	  will be called "rtc-m48t59".
1203 	  will be called rtc-msm6242.
1213 	  will be called rtc-bq4802.
1224 	  will be called rtc-rp5c01.
1233 	  will be called rtc-v3020.
1243 	  will be called "rtc-wm831x".
1253 	  will be called "rtc-wm8350".
1264 	  will be called rtc-sc27xx.
1282 	tristate "ST-Ericsson AB3100 RTC"
1286 	  Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
1287 	  support. This chip contains a battery- and capacitor-backed RTC.
1290 	tristate "ST-Ericsson AB8500 RTC"
1295 	  Select this to enable the ST-Ericsson AB8500 power management IC RTC
1296 	  support. This chip contains a battery- and capacitor-backed RTC.
1307 	  will be called rtc-opal.
1324 	  will be called rtc-cros-ec.
1326 comment "on-CPU RTC drivers"
1336 	  will be called rtc-asm9260.
1346 	  will be called rtc-davinci.
1356 	  will be called rtc-digicolor.
1359 	tristate "Freescale IMX DryIce Real Time Clock"
1365 	   will be called "rtc-imxdi".
1378 	   will be called "rtc-fsl-ftm-alarm".
1389 	   will be called "rtc-meson".
1400 	  will be called rtc-meson-vrtc.
1403 	tristate "TI OMAP Real Time Clock"
1409 	  Say "yes" here to support the on chip real time clock
1410 	  present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
1413 	  will be called rtc-omap.
1420 	  select this in the respective mach-XXXX/Kconfig file.
1436 	  will be called rtc-s3c.
1446 	  will be called rtc-ep93xx.
1452 	  If you say Y here you will get access to the real time clock
1456 	  module will be called rtc-sa1100.
1459 	tristate "SuperH On-Chip RTC"
1462 	  Say Y here to enable support for the on-chip RTC found in
1466 	  module will be called rtc-sh.
1472 	  If you say Y here you will get access to the real time clock
1476 	  module will be called rtc-vr41xx.
1486 	  module will be called rtc-pl030.
1496 	  module will be called rtc-pl031.
1513 	  Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which
1518 	  Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd
1519 	  probably want to use the real RTC block instead of the "RTT as an
1526 	  This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
1530 	  will be called rtc-au1xxx.
1553 	 If you say Y here you will get access to the real time clock
1564 	  If you say Y here you will get access to the real time clock
1609 	  If you say yes here you will get support for the in-chip RTC
1614 	  will be called rtc-mv.
1620 	  If you say yes here you will get support for the in-chip RTC
1624 	  will be called armada38x-rtc.
1634 	  module will be called rtc-cadence.
1645 	  will be called rtc-ftrtc010.
1654 	  will be called rtc-ps3.
1657 	tristate "ST-Ericsson COH 901 331 RTC"
1660 	  If you say Y here you will get access to ST-Ericsson
1661 	  COH 901 331 RTC clock found in some ST-Ericsson Mobile
1665 	  will be called "rtc-coh901331".
1677 	  will be called rtc-stmp3xxx.
1694 	tristate "Freescale MPC5121 built-in RTC"
1698 	  built-in RTC on MPC5121 or on MPC5200.
1701 	  will be called rtc-mpc5121.
1712 	  will be called rtc-jz4740.
1724 	  so, the module will be called rtc-lpc24xx.
1733 	  will be called rtc-lpc32xx.
1743 	  module will be called rtc-pm8xxx.
1753 	  will be called rtc-tegra.
1759 	  This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1763 	  will be called rtc-ls1x.
1766 	tristate "Freescale MXC Real Time Clock"
1773 	   will be called "rtc-mxc".
1776 	tristate "Freescale MXC Real Time Clock for i.MX53"
1783 	   will be called "rtc-mxc_v2".
1796 	   will be called "rtc-snvs".
1810 	  Say "yes" here to support the real time clock on SiRF SOC chips.
1811 	  This driver can also be built as a module called rtc-sirfsoc.
1822 	  module will be called rtc-st-lpc.
1832 	   will be called rtc-moxart
1838 	  This enables support for the real time clock built in the MediaTek
1842 	  will be called rtc-mt2712.
1858 	  This enables support for the real time clock built in the MediaTek
1862 	  will be called rtc-mt7622.
1865 	tristate "APM X-Gene RTC"
1869 	  If you say yes here you get support for the APM X-Gene SoC real time
1873 	  will be called "rtc-xgene".
1883 	   will be called rtc-pic32
1886 	tristate "EPSON TOYOCOM RTC-7301SF/DG"
1891 	   RTC-7301SF/DG chips.
1894 	   will be called rtc-r7301.
1901 	   If you say yes here you get support for the STM32 On-Chip
1902 	   Real Time Clock.
1905 	   will be called "rtc-stm32".
1920 	  Real Time Clock.
1927 	  If you say yes here you get support for the ASPEED BMC SoC real time
1931 	  will be called "rtc-aspeed".
1936 	tristate "HID Sensor Time"
1941 	  Say yes here to build support for the HID Sensors of type Time.
1945 	  rtc-hid-sensor-time.
1948 	tristate "Goldfish Real Time Clock"
1962 	  If you say yes here, you get read/write support for the Real Time