linux_dsm_epyc7002/drivers/rtc
Mark Lord 615bb29ccb rtc: ignore msb when reading back mday from alarm
I have a system here that actively relies upon RTC wake alarms, and it
has been failing (again) for a few days when attempting to use the
/sys/class/rtc/rtc?/wakealarm interface.

The old (fixed by Linus) /proc/ interface still works, but I'd like to
get it using the new one.

This patch fixes rtc-cmos to ignore the two upper bits when reading the
BCD mday (day of month) register from CMOS.  Some systems (eg.  mine)
seem to have the top bit set to "1" for some reason.

The older /proc/ interface ignores the upper bits, and so we should too.

Signed-off-by: Mark Lord <mlord@pobox.com>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-04 13:13:09 -08:00
..
class.c RTC: periodic irq fix 2007-10-16 09:43:13 -07:00
hctosys.c rtc: remove rest of class_device 2007-05-08 11:15:18 -07:00
interface.c rtc: fix readback from /sys/class/rtc/rtc?/wakealarm 2007-10-16 09:43:13 -07:00
Kconfig typo fixes 2007-10-20 01:34:40 +02:00
Makefile rtc: RTC class driver for the ds1374 2007-10-16 09:43:13 -07:00
rtc-at32ap700x.c Driver for the Atmel on-chip RTC on AT32AP700x devices 2007-07-17 10:23:09 -07:00
rtc-at91rm9200.c rtc: suspend()/resume() restores system clock 2007-05-08 11:15:18 -07:00
rtc-bfin.c Blackfin On-Chip RTC driver update for supporting BF54x 2007-07-15 02:33:26 +08:00
rtc-cmos.c rtc: ignore msb when reading back mday from alarm 2007-11-04 13:13:09 -08:00
rtc-core.h rtc: update to class device removal patches 2007-05-08 11:15:18 -07:00
rtc-dev.c rtc: allow validated RTC_PIE_ON for non-root 2007-10-16 09:43:13 -07:00
rtc-ds1216.c RTC driver for DS1216 chips 2007-07-17 10:23:09 -07:00
rtc-ds1307.c rtc-ds1307: typo fix found by coverity 2007-07-26 11:35:16 -07:00
rtc-ds1374.c rtc: RTC class driver for the ds1374 2007-10-16 09:43:13 -07:00
rtc-ds1553.c rtc: make rtc-ds1553 driver hotplug-aware 2007-10-16 09:43:13 -07:00
rtc-ds1672.c i2c: Stop using i2c_adapter.class_dev 2007-02-13 22:09:04 +01:00
rtc-ds1742.c rtc: make rtc-ds1742 driver hotplug-aware 2007-10-16 09:43:13 -07:00
rtc-ep93xx.c [PATCH] constify rtc_class_ops: update drivers 2006-10-01 00:39:25 -07:00
rtc-isl1208.c [PATCH] constify rtc_class_ops: update drivers 2006-10-01 00:39:25 -07:00
rtc-lib.c revert "rtc: Add rtc_merge_alarm()" 2007-05-08 11:15:18 -07:00
rtc-m41t80.c correct name for rtc-m41t80 2007-08-22 19:52:45 -07:00
rtc-m48t59.c rtc-m48t59 driver NO_IRQ mode fixup 2007-07-31 15:39:44 -07:00
rtc-m48t86.c [PATCH] constify rtc_class_ops: update drivers 2006-10-01 00:39:25 -07:00
rtc-max6900.c rtc: update and use the MAX6900 century byte 2007-07-21 17:49:17 -07:00
rtc-max6902.c rtc-max6902 minor fixes 2007-08-22 19:52:47 -07:00
rtc-omap.c rtc-omap build fix 2007-05-17 05:23:05 -07:00
rtc-pcf8563.c i2c: Stop using i2c_adapter.class_dev 2007-02-13 22:09:04 +01:00
rtc-pcf8583.c rtc-pcf8583: Check for i2c adapter functionality 2007-10-16 09:43:13 -07:00
rtc-pl031.c remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
rtc-proc.c rtc: remove rest of class_device 2007-05-08 11:15:18 -07:00
rtc-rs5c313.c rtc-rs5c313.c: add error handling to avoid hardware hangup 2007-05-11 08:29:35 -07:00
rtc-rs5c348.c [PATCH] rtc: Make rtc-rs5c348 driver hotplug-aware 2007-08-27 02:16:58 +01:00
rtc-rs5c372.c rtc-rs5c372 becomes a new-style i2c driver 2007-07-17 10:23:08 -07:00
rtc-s3c.c s3c-rtc: remove unused variable 2007-10-30 08:06:55 -07:00
rtc-sa1100.c remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
rtc-sh.c rtc: rtc-sh: Support 4-digit year on SH7705/SH7710/SH7712. 2007-09-21 11:57:47 +09:00
rtc-stk17ta8.c fix missing arguments in drivers/rtc/rtc-stk17ta8.c 2007-07-26 11:11:56 -07:00
rtc-sysfs.c Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
rtc-test.c rtc: rtc interfaces don't use class_device 2007-05-08 11:15:18 -07:00
rtc-v3020.c RTC v3020 fixes 2007-09-11 17:21:20 -07:00
rtc-vr41xx.c [MIPS] separate platform_device registration for VR41xx RTC 2007-07-12 17:41:15 +01:00
rtc-x1205.c i2c: Delete outdated x1205 driver documentation 2007-07-12 14:12:28 +02:00