Lines Matching +full:real +full:- +full:time
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
141 once-per-second update interrupts, used for synchronization.
143 The emulation code will read the time from the hardware
153 the time from the system clock.
159 will be called rtc-test.
173 will be called rtc-88pm860x.
183 will be called rtc-88pm80x.
193 will be called rtc-88pm886.
197 tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
200 AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.
203 will be called rtc-ab-b5ze-s3.
207 tristate "Abracon AB-RTCMC-32.768kHz-EOZ9"
210 AB-RTCMC-32.768kHz-EOA9 I2C RTC chip.
213 will be called rtc-ab-e0z9.
220 families of ultra-low-power battery- and capacitor-backed real-time
224 will be called rtc-abx80x.
227 tristate "X-Powers AC100"
230 If you say yes here you get support for the real-time clock found
231 in X-Powers AC100 family peripheral ICs.
234 will be called rtc-ac100.
237 tristate "Broadcom STB wake-timer"
241 If you say yes here you get support for the wake-timer found on
245 be called rtc-brcmstb-waketimer.
255 will be called rtc-as3722.
258 tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057"
265 ST M41T00, EPSON RX-8025, Intersil ISL12057 and probably other chips.
275 will be called rtc-ds1307.
278 bool "Century bit support for rtc-ds1307"
283 century bit inconditionnally but never used it when reading the time.
286 the time was previously set using a kernel predating this option,
295 DS1374 real-time clock chips. If an interrupt is associated
299 will be called rtc-ds1374.
308 real-time clock chips.
317 will be called rtc-ds1672.
328 will be called rtc-hym8563.
343 will be called rtc-max6900.
354 will be called rtc-max8907.
364 will be called rtc-max8925.
374 will be called rtc-max8998.
384 will be called rtc-max8997.
397 will be called rtc-max31335.
407 will be called rtc-max77686.
417 called "rtc-nct3018y".
427 will be called rk808-rtc.
436 will be called rtc-rs5c372.
445 will be called rtc-isl1208.
455 will be called rtc-isl12022.
465 will be called rtc-isl12026.
474 will be called rtc-x1205.
484 will be called rtc-pcf8523.
493 will be called rtc-pcf85063.
502 will be called rtc-pcf85363.
504 The nvmem interface will be named pcf85363-#, where # is the
505 zero-based instance number.
516 will be called rtc-pcf8563.
528 will be called rtc-pcf8583.
539 will be called rtc-m41t80.
556 will be called rtc-bd70528.
565 will be called rtc-bq32k.
585 will be called rtc-twl.
595 will be called rtc-palma.
615 will be called rtc-tps6594.
625 will be called rtc-tps65910.
635 will be called rtc-rc5t583.
645 will be called rtc-rc5t619.
648 tristate "Seiko Instruments S-35390A"
652 Instruments S-35390A.
655 will be called rtc-s35390a.
666 will be called rtc-fm3130.
676 will be called rtc-rx8010.
686 called rtc-rx8111.
689 tristate "Epson RX-8571/RX-8581"
692 If you say yes here you will get support for the Epson RX-8571/
693 RX-8581.
696 will be called rtc-rx8581.
699 tristate "Epson RX-8025SA/NB"
702 RX-8025SA/NB RTC chips.
705 will be called rtc-rx8025.
714 will be called rtc-em3027.
724 will be called rtc-rv3028.
734 will be called rtc-rv3032.
743 will be called rtc-rv8803.
755 will be called rtc-s5m.
765 will be called rtc-sd2405al.
775 will be called rtc-sd3078
790 will be called rtc-m41t93.
799 will be called rtc-m41t94.
808 will be called rtc-ds1302.
814 and DS1306 real time clock chips. These support a trickle
818 will be called rtc-ds1305.
825 Dallas/Maxim DS1343 and DS1344 real time clock chips.
829 will be called rtc-ds1343.
842 will be called rtc-ds1347.
854 will be called rtc-ds1390.
866 will be called rtc-max6916.
869 tristate "Epson RTC-9701JE"
872 Epson RTC-9701JE SPI RTC chip.
875 will be called rtc-r9701.
878 tristate "Epson RX-4581"
880 If you say yes here you will get support for the Epson RX-4581.
883 will be called rtc-rx4581.
892 will be called rtc-rs5c348.
901 will be called rtc-max6902.
911 will be called rtc-pcf2123.
919 will be called rtc-mcp795.
942 DS3232 and DS3234 real-time clock chips. If an interrupt is associated
946 will be called rtc-ds3232.
954 rtc-ds3232
972 will be called rtc-pcf2127.
984 will be called rtc-rv3029c2.
993 rtc-rv3029.
996 tristate "Epson RX-6110"
1001 If you say yes here you will get support for the Epson RX-6110.
1004 will be called rtc-rx6110.
1013 tristate "PC-style 'CMOS'"
1019 Say "yes" here to get direct support for the real time clock
1020 found in every PC or ACPI-based system, and some other boards.
1031 will be called rtc-cmos.
1034 bool "Alpha PC-style CMOS"
1040 Direct support for the real-time clock found on every Alpha
1063 will be called rtc-ds1511.
1073 will be called rtc-ds1553.
1080 family of real time chips. This family includes the DS1685/DS1687,
1085 will be called rtc-ds1685.
1095 This enables support for the Dallas/Maxim DS1685/DS1687 real time
1099 systems, as well as EPPC-405-UC modules by electronic system design
1105 This enables support for the Dallas/Maxim DS1689/DS1693 real time
1110 Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
1119 This enables support for the Dallas/Maxim DS17285/DS17287 real time
1122 This chip features 2kb of extended NV-SRAM. It may possibly be
1128 This enables support for the Dallas/Maxim DS17485/DS17487 real time
1131 This chip features 4kb of extended NV-SRAM.
1136 This enables support for the Dallas/Maxim DS17885/DS17887 real time
1139 This chip features 8kb of extended NV-SRAM.
1151 will be called rtc-ds1742.
1160 will be called rtc-ds2404.
1167 DA9052-BC and DA9053-AA/Bx PMICs.
1177 will be called rtc-da9055
1187 will be called "rtc-da9063".
1194 Real Time Clock.
1197 will be called rtc-efi.
1207 will be called rtc-stk17ta8.
1217 will be called rtc-m48t86.
1227 will be called "rtc-m48t35".
1240 will be called "rtc-m48t59".
1250 will be called rtc-msm6242.
1261 will be called rtc-bq4802.
1272 will be called rtc-rp5c01.
1283 will be called "rtc-gamecube".
1293 will be called "rtc-wm831x".
1303 will be called "rtc-wm8350".
1314 will be called rtc-sc27xx.
1332 tristate "ST-Ericsson AB8500 RTC"
1337 Select this to enable the ST-Ericsson AB8500 power management IC RTC
1338 support. This chip contains a battery- and capacitor-backed RTC.
1349 will be called rtc-opal.
1352 tristate "OP-TEE based RTC driver"
1355 Select this to get support for OP-TEE based RTC control on SoCs where
1359 will be called rtc-optee.
1376 will be called rtc-cros-ec.
1383 embedded controller found in certain e-book readers designed by the
1386 comment "on-CPU RTC drivers"
1396 will be called rtc-asm9260.
1406 will be called rtc-digicolor.
1409 tristate "Freescale IMX DryIce Real Time Clock"
1416 will be called "rtc-imxdi".
1429 will be called "rtc-fsl-ftm-alarm".
1440 will be called "rtc-meson".
1451 will be called rtc-meson-vrtc.
1454 tristate "TI OMAP Real Time Clock"
1460 Say "yes" here to support the on chip real time clock
1461 present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
1464 will be called rtc-omap.
1477 will be called rtc-s3c.
1487 will be called rtc-ep93xx.
1493 If you say Y here you will get access to the real time clock
1497 module will be called rtc-sa1100.
1500 tristate "SuperH On-Chip RTC"
1503 Say Y here to enable support for the on-chip RTC found in
1507 module will be called rtc-sh.
1513 Say 'yes' to get support for the real-time clock present in
1514 Sunplus SP7021 - a SoC for industrial applications. It provides
1520 will be called rtc-sunplus.
1530 module will be called rtc-pl030.
1540 module will be called rtc-pl031.
1557 Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which
1562 Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd
1563 probably want to use the real RTC block instead of the "RTT as an
1570 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
1574 will be called rtc-au1xxx.
1604 If you say Y here you will get access to the real time clock
1615 If you say Y here you will get access to the real time clock
1653 If you say yes here you will get support for the in-chip RTC
1658 will be called rtc-mv.
1665 If you say yes here you will get support for the in-chip RTC
1669 will be called armada38x-rtc.
1679 module will be called rtc-cadence.
1690 will be called rtc-ftrtc010.
1699 will be called rtc-ps3.
1710 will be called rtc-stmp3xxx.
1727 tristate "Freescale MPC5121 built-in RTC"
1731 built-in RTC on MPC5121 or on MPC5200.
1734 will be called rtc-mpc5121.
1745 will be called rtc-jz4740.
1748 tristate "Loongson On-chip RTC"
1752 This is a driver for the Loongson on-chip Counter0 (Time-Of-Year
1754 It can be found on Loongson-1 series cpu, Loongson-2K series cpu
1758 will be called rtc-loongson.
1771 so, the module will be called rtc-lpc24xx.
1780 will be called rtc-lpc32xx.
1790 module will be called rtc-pm8xxx.
1800 will be called rtc-tegra.
1803 tristate "Freescale MXC Real Time Clock"
1812 will be called "rtc-mxc".
1815 tristate "Freescale MXC Real Time Clock for i.MX53"
1824 will be called "rtc-mxc_v2".
1837 will be called "rtc-snvs".
1849 will be called "rtc-bbnsm".
1860 module will be called rtc-imx-sm-bbm.
1879 module will be called rtc-st-lpc.
1889 will be called rtc-moxart
1895 This enables support for the real time clock built in the MediaTek
1899 will be called rtc-mt2712.
1916 This enables support for the real time clock built in the MediaTek
1920 will be called rtc-mt7622.
1923 tristate "APM X-Gene RTC"
1927 If you say yes here you get support for the APM X-Gene SoC real time
1931 will be called "rtc-xgene".
1941 will be called rtc-pic32
1944 tristate "EPSON TOYOCOM RTC-7301SF/DG"
1949 RTC-7301SF/DG chips.
1952 will be called rtc-r7301.
1965 If you say yes here you get support for the STM32 On-Chip
1966 Real Time Clock.
1969 will be called "rtc-stm32".
1984 Real Time Clock.
1991 If you say yes here you get support for the ASPEED BMC SoC real time
1995 will be called "rtc-aspeed".
2003 Real Time Clock for K3 architecture.
2006 will be called "rtc-ti-k3".
2014 On-Chip Real Time Clock.
2017 will be called "rtc-ma35d1".
2020 tristate "Renesas RTCA-3 RTC"
2023 If you say yes here you get support for the Renesas RTCA-3 RTC
2027 will be called "rtc-rtca3".
2032 tristate "HID Sensor Time"
2037 Say yes here to build support for the HID Sensors of type Time.
2041 rtc-hid-sensor-time.
2044 tristate "Goldfish Real Time Clock"
2057 If you say yes here, you get read/write support for the Real Time
2067 If you say yes here you get support for the Mstar MSC313e On-Chip
2068 Real Time Clock.
2071 will be called "rtc-msc313".
2074 tristate "Microchip PolarFire SoC built-in RTC"
2078 built-in RTC on Polarfire SoC.
2081 will be called "rtc-mpfs".
2088 If you say yes here you get support for the SigmaStar SSD202D On-Chip
2089 Real Time Clock.
2092 will be called "rtc-ssd20xd".
2104 will be called "rtc-amlogic-a4".