linux/drivers/rtc
Riwen Lu aba976f96b rtc: cmos: Evaluate century appropriate
commit ff164ae39b upstream.

There's limiting the year to 2069. When setting the rtc year to 2070,
reading it returns 1970. Evaluate century starting from 19 to count the
correct year.

$ sudo date -s 20700106
Mon 06 Jan 2070 12:00:00 AM CST
$ sudo hwclock -w
$ sudo hwclock -r
1970-01-06 12:00:49.604968+08:00

Fixes: 2a4daadd4d ("rtc: cmos: ignore bogus century byte")

Signed-off-by: Riwen Lu <luriwen@kylinos.cn>
Acked-by: Eric Wong <e@80x24.org>
Reviewed-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220106084609.1223688-1-luriwen@kylinos.cn
Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl> # preparation for stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 18:34:12 +01:00
..
class.c
dev.c
interface.c
Kconfig rtc: rx8010: select REGMAP_I2C 2021-09-09 10:18:40 +02:00
lib_test.c rtc: lib_test: add MODULE_LICENSE 2021-08-10 23:21:46 +02:00
lib.c rtc: Improve performance of rtc_time64_to_tm(). Add tests. 2021-08-10 00:09:21 +02:00
Makefile rtc: move RTC_LIB_KUNIT_TEST to proper location 2021-08-10 23:22:20 +02:00
nvmem.c
proc.c rtc: fix snprintf() checking in is_rtc_hctosys() 2021-05-25 00:36:11 +02:00
rtc-88pm80x.c
rtc-88pm860x.c
rtc-ab-b5ze-s3.c
rtc-ab-eoz9.c
rtc-ab8500.c
rtc-abx80x.c
rtc-ac100.c
rtc-armada38x.c
rtc-as3722.c
rtc-asm9260.c
rtc-aspeed.c
rtc-at91rm9200.c
rtc-at91sam9.c rtc: at91sam9: Remove unnecessary offset variable checks 2021-07-10 02:42:08 +02:00
rtc-au1xxx.c rtc: au1xxx: convert to SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-bd70528.c rtc: bd70528: Drop BD70528 support 2021-06-20 22:24:52 +02:00
rtc-bq32k.c
rtc-bq4802.c
rtc-brcmstb-waketimer.c
rtc-cadence.c
rtc-cmos.c rtc: cmos: take rtc_lock while reading from CMOS 2022-01-27 11:02:52 +01:00
rtc-core.h
rtc-cpcap.c
rtc-cros-ec.c
rtc-da9052.c
rtc-da9055.c
rtc-da9063.c
rtc-davinci.c
rtc-digicolor.c
rtc-dm355evm.c
rtc-ds1216.c
rtc-ds1286.c
rtc-ds1302.c rtc: ds1302: Add SPI ID table 2021-11-18 19:16:58 +01:00
rtc-ds1305.c
rtc-ds1307.c
rtc-ds1343.c
rtc-ds1347.c
rtc-ds1374.c rtc: ds1374: convert to SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-ds1390.c rtc: ds1390: Add SPI ID table 2021-11-18 19:16:59 +01:00
rtc-ds1511.c
rtc-ds1553.c
rtc-ds1672.c
rtc-ds1685.c
rtc-ds1742.c
rtc-ds2404.c
rtc-ds3232.c
rtc-efi.c rtc: efi: Remove the repeated module alias 2021-05-25 00:39:58 +02:00
rtc-em3027.c
rtc-ep93xx.c
rtc-fm3130.c
rtc-fsl-ftm-alarm.c
rtc-ftrtc010.c
rtc-generic.c
rtc-goldfish.c
rtc-hid-sensor-time.c iio: hid-sensors: lighten exported symbols by moving to IIO_HID namespace 2021-06-16 14:53:13 +01:00
rtc-hym8563.c
rtc-imx-sc.c
rtc-imxdi.c rtc: imxdi: add wakeup support 2021-05-25 00:41:25 +02:00
rtc-isl1208.c
rtc-isl12022.c
rtc-isl12026.c
rtc-jz4740.c
rtc-lp8788.c
rtc-lpc24xx.c
rtc-lpc32xx.c
rtc-ls1x.c
rtc-m41t80.c rtc: m41t80: correct kerneldoc function names 2021-06-20 22:19:46 +02:00
rtc-m41t93.c
rtc-m41t94.c
rtc-m48t35.c
rtc-m48t59.c
rtc-m48t86.c
rtc-max6900.c rtc: max6900: convert to SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-max6902.c
rtc-max6916.c
rtc-max8907.c
rtc-max8925.c
rtc-max8997.c
rtc-max8998.c
rtc-max77686.c rtc: max77686: Do not enforce (incorrect) interrupt trigger type 2021-06-20 22:22:13 +02:00
rtc-mc13xxx.c
rtc-mc146818-lib.c rtc: cmos: Evaluate century appropriate 2022-02-08 18:34:12 +01:00
rtc-mcp795.c rtc: mcp795: Add SPI ID table 2021-11-18 19:16:59 +01:00
rtc-meson-vrtc.c
rtc-meson.c
rtc-moxart.c
rtc-mpc5121.c
rtc-msm6242.c
rtc-mt2712.c
rtc-mt6397.c rtc: mt6397: refine RTC_TC_MTH 2021-06-01 16:44:09 +01:00
rtc-mt7622.c
rtc-mv.c
rtc-mxc_v2.c rtc: mxc_v2: add missing MODULE_DEVICE_TABLE 2021-05-25 00:33:17 +02:00
rtc-mxc.c
rtc-ntxec.c
rtc-omap.c
rtc-opal.c
rtc-palmas.c rtc: palmas: convert to SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-pcap.c
rtc-pcf2123.c rtc: pcf2123: Add SPI ID table 2021-11-18 19:16:59 +01:00
rtc-pcf2127.c rtc: pcf2127: handle timestamp interrupts 2021-07-10 02:58:31 +02:00
rtc-pcf8523.c rtc: pcf8523: rename register and bit defines 2021-07-10 23:18:30 +02:00
rtc-pcf8563.c rtc: pcf8563: Fix the datasheet URL 2021-06-20 23:48:35 +02:00
rtc-pcf8583.c
rtc-pcf50633.c
rtc-pcf85063.c rtc: pcf85063: Update the PCF85063A datasheet revision 2021-07-10 01:40:49 +02:00
rtc-pcf85363.c
rtc-pic32.c
rtc-pl030.c
rtc-pl031.c
rtc-pm8xxx.c
rtc-ps3.c
rtc-pxa.c rtc: pxa: fix null pointer dereference 2022-01-27 11:05:34 +01:00
rtc-r7301.c
rtc-r9701.c
rtc-rc5t583.c
rtc-rc5t619.c
rtc-rk808.c
rtc-rp5c01.c
rtc-rs5c313.c
rtc-rs5c348.c
rtc-rs5c372.c
rtc-rtd119x.c rtc: rtd119x: Fix format of SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-rv3028.c
rtc-rv3029c2.c
rtc-rv3032.c rtc: rv3032: fix error handling in rv3032_clkout_set_rate() 2021-11-18 19:17:01 +01:00
rtc-rv8803.c
rtc-rx4581.c
rtc-rx6110.c
rtc-rx8010.c
rtc-rx8025.c rtc: rx8025: implement RX-8035 support 2021-08-17 23:48:33 +02:00
rtc-rx8581.c
rtc-s3c.c
rtc-s3c.h
rtc-s5m.c rtc: s5m: set range 2021-08-06 10:31:59 +02:00
rtc-s35390a.c
rtc-sa1100.c
rtc-sa1100.h
rtc-sc27xx.c rtc: sc27xx: Fix format of SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-sd3078.c
rtc-sh.c
rtc-snvs.c
rtc-spear.c rtc: spear: convert to SPDX identifier 2021-07-10 01:53:57 +02:00
rtc-st-lpc.c
rtc-starfire.c
rtc-stk17ta8.c
rtc-stm32.c rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path 2021-06-20 22:28:02 +02:00
rtc-stmp3xxx.c
rtc-sun4v.c
rtc-sun6i.c
rtc-sunxi.c
rtc-tegra.c
rtc-test.c
rtc-tps6586x.c rtc: tps6586x: convert to SPDX identifier 2021-07-10 01:53:40 +02:00
rtc-tps65910.c rtc: tps65910: Correct driver module alias 2021-08-17 23:36:22 +02:00
rtc-tps80031.c rtc: tps80031: convert to SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-twl.c
rtc-v3020.c rtc: v3020: remove redundant initialization of variable retval 2021-06-20 22:29:50 +02:00
rtc-vr41xx.c
rtc-vt8500.c
rtc-wilco-ec.c
rtc-wm831x.c
rtc-wm8350.c
rtc-x1205.c
rtc-xgene.c
rtc-zynqmp.c
sysfs.c rtc: sysfs: Correct kerneldoc function name hctosys_show() 2021-06-20 22:18:05 +02:00