linux/drivers/rtc
Johannes Weiner 48a7f77468 rtc-x1205: fix rtc_time to y2k register value conversion
The possible CCR_Y2K register values are 19 or 20 and struct rtc_time's
tm_year is in years since 1900.

The function translating rtc_time to register values assumes tm_year to be
years since first christmas, though, and we end up storing 0 or 1 in the
CCR_Y2K register, which the hardware does not refuse to do.

A subsequent probing of the clock fails due to the invalid value range in
the register, though.

[ And if it didn't, reading the clock would yield a bogus year because
  the function translating registers to tm_year is assuming a register
  value of 19 or 20. ]

This fixes the conversion from years since 1900 in tm_year to the
corresponding CCR_Y2K value of 19 or 20.

Signed-off-by: Johannes Weiner <jw@emlix.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-01 16:32:20 -08:00
..
class.c
hctosys.c
interface.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
Kconfig rtc: driver for PCAP2 PMIC 2009-09-23 07:39:45 -07:00
Makefile rtc: driver for PCAP2 PMIC 2009-09-23 07:39:45 -07:00
rtc-ab3100.c rtc: AB3100 RTC support 2009-09-17 09:47:24 +02:00
rtc-at32ap700x.c
rtc-at91rm9200.c rtc: at91rm9200 fixes 2009-09-23 07:39:46 -07:00
rtc-at91sam9.c
rtc-au1xxx.c
rtc-bfin.c rtc-bfin: do not share RTC IRQ 2009-09-23 07:39:45 -07:00
rtc-bq4802.c
rtc-cmos.c rtc: mark if rtc-cmos drivers were successfully registered 2009-07-29 19:10:35 -07:00
rtc-coh901331.c ARM: 5787/1: U300 COH 901 331 fixes 2009-11-16 16:15:49 +00:00
rtc-core.h
rtc-dev.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
rtc-dm355evm.c
rtc-ds1216.c
rtc-ds1286.c
rtc-ds1302.c rtc: rtc-ds1302: Kill off unused variables. 2009-08-20 15:06:04 +09:00
rtc-ds1305.c spi: prefix modalias with "spi:" 2009-09-23 07:39:43 -07:00
rtc-ds1307.c drivers/rtc: correct error-handling code 2009-09-23 07:39:45 -07:00
rtc-ds1374.c
rtc-ds1390.c spi: prefix modalias with "spi:" 2009-09-23 07:39:43 -07:00
rtc-ds1511.c
rtc-ds1553.c
rtc-ds1672.c
rtc-ds1742.c
rtc-ds3234.c spi: prefix modalias with "spi:" 2009-09-23 07:39:43 -07:00
rtc-efi.c
rtc-ep93xx.c drivers/rtc: introduce missing kfree 2009-09-23 07:39:45 -07:00
rtc-fm3130.c
rtc-generic.c
rtc-isl1208.c
rtc-lib.c
rtc-m41t80.c
rtc-m41t94.c spi: prefix modalias with "spi:" 2009-09-23 07:39:43 -07:00
rtc-m48t35.c
rtc-m48t59.c
rtc-m48t86.c
rtc-max6900.c
rtc-max6902.c spi: prefix modalias with "spi:" 2009-09-23 07:39:43 -07:00
rtc-mv.c
rtc-mxc.c rtc: add driver for MXC's internal RTC module 2009-09-23 07:39:45 -07:00
rtc-omap.c trivial: remove unnecessary semicolons 2009-09-21 15:14:58 +02:00
rtc-pcap.c rtc: driver for PCAP2 PMIC 2009-09-23 07:39:45 -07:00
rtc-pcf2123.c rtc-philips-pcf2123-rtc-spi-driver-updates 2009-09-23 07:39:45 -07:00
rtc-pcf8563.c
rtc-pcf8583.c
rtc-pcf50633.c drivers/rtc/rtc-pcf50633.c: fix use after free in pcf50633_rtc_probe() 2009-12-01 16:32:19 -08:00
rtc-pl030.c
rtc-pl031.c
rtc-proc.c
rtc-ps3.c
rtc-pxa.c [ARM] pxa: update rtc-pxa.c to use 'struct dev_pm_ops' 2009-09-10 19:15:35 +08:00
rtc-r9701.c spi: prefix modalias with "spi:" 2009-09-23 07:39:43 -07:00
rtc-rs5c313.c
rtc-rs5c348.c spi: prefix modalias with "spi:" 2009-09-23 07:39:43 -07:00
rtc-rs5c372.c
rtc-rx8025.c
rtc-rx8581.c
rtc-s3c.c
rtc-s35390a.c
rtc-sa1100.c Merge branch 'master' into for-linus 2009-09-22 21:01:40 +01:00
rtc-sh.c rtc: rtc-sh: Fix up oops in early periodic freq assignment. 2009-09-09 12:13:01 +09:00
rtc-starfire.c
rtc-stk17ta8.c
rtc-stmp3xxx.c rtc: add Freescale stmp37xx/378x driver 2009-09-23 07:39:45 -07:00
rtc-sun4v.c
rtc-sysfs.c rtc: add boot_timesource sysfs attribute 2009-09-23 07:39:46 -07:00
rtc-test.c
rtc-twl4030.c
rtc-tx4939.c
rtc-v3020.c rtc: v3020: fix v3020_mmio_read_bit() 2009-11-12 07:25:59 -08:00
rtc-vr41xx.c rtc-vr41xx: fix do_div() warning 2009-11-12 07:25:58 -08:00
rtc-wm831x.c rtc: Add support for RTCs on Wolfson WM831x devices 2009-09-17 09:47:13 +02:00
rtc-wm8350.c
rtc-x1205.c rtc-x1205: fix rtc_time to y2k register value conversion 2009-12-01 16:32:20 -08:00