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449321b39f
linux/drivers/rtc
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David Brownell 449321b39f rtc-at91rm9200: avoid spurious irqs 
This fixes kernel http://bugzilla.kernel.org/show_bug.cgi?id=11112 (bogus
RTC update IRQs reported) for rtc-at91rm9200 by scrubbing old IRQ status
before enabling IRQs.

It also removes nonfunctional periodic IRQ support from this driver;
only update IRQs are reported, or provided by the hardware.

I suspect some other RTCs probably have versions of #11112; it's easy to
overlook, since most non-RTC drivers don't care about spurious IRQs:
they're not reported to userspace.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Report-by: W Unruh <unruh@physics.ubc.ca>
Cc: Andrew Victor <avictor.za@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:34 -07:00
..
class.c RTC: periodic irq fix 2007-10-16 09:43:13 -07:00
hctosys.c rtc_hctosys expects RTCs in UTC (doc) 2007-11-14 18:45:36 -08:00
interface.c Driver Core: add ability for class_find_device to start in middle of list 2008-07-21 21:54:47 -07:00
Kconfig rtc: ds1305/ds1306 driver 2008-07-24 10:47:33 -07:00
Makefile rtc: ds1305/ds1306 driver 2008-07-24 10:47:33 -07:00
rtc-at32ap700x.c rtc-at32ap700x: Enable wakeup 2008-07-02 11:05:01 +02:00
rtc-at91rm9200.c rtc-at91rm9200: avoid spurious irqs 2008-07-24 10:47:34 -07:00
rtc-at91sam9.c [RTC] remove references to asm/mach/time.h 2008-05-22 14:56:35 +01:00
rtc-bfin.c Remove duplicated unlikely() in IS_ERR() 2008-04-29 08:06:25 -07:00
rtc-cmos.c rtc-cmos: improve HPET IRQ glue 2008-07-24 10:47:34 -07:00
rtc-core.h rtc: update to class device removal patches 2007-05-08 11:15:18 -07:00
rtc-dev.c rtc: remove BKL for ioctl() 2008-07-24 10:47:33 -07:00
rtc-ds1216.c rtc: fix platform driver hotplug/coldplug 2008-04-11 08:06:44 -07:00
rtc-ds1302.c rtc: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:17 -07:00
rtc-ds1305.c rtc: ds1305/ds1306 driver 2008-07-24 10:47:33 -07:00
rtc-ds1307.c i2c: Convert most new-style drivers to use module aliasing 2008-04-29 23:11:40 +02:00
rtc-ds1374.c rtc-ds1374: rename device to just "ds1374" 2008-06-06 11:29:10 -07:00
rtc-ds1511.c fix irq flags in rtc-ds1511 2008-05-08 10:46:55 -07:00
rtc-ds1553.c rtc: fix platform driver hotplug/coldplug 2008-04-11 08:06:44 -07:00
rtc-ds1672.c rtc: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:17 -07:00
rtc-ds1742.c rtc: fix platform driver hotplug/coldplug 2008-04-11 08:06:44 -07:00
rtc-ep93xx.c rtc: fix platform driver hotplug/coldplug 2008-04-11 08:06:44 -07:00
rtc-fm3130.c rtc-fm3130: fix chip naming 2008-07-12 14:33:41 -07:00
rtc-isl1208.c i2c: Convert most new-style drivers to use module aliasing 2008-04-29 23:11:40 +02:00
rtc-lib.c rtc: rtc_time_to_tm: use unsigned arithmetic 2008-05-13 08:02:25 -07:00
rtc-m41t80.c rtc: m41t80: use pr_info() as appropriate 2008-07-24 10:47:33 -07:00
rtc-m41t94.c rtc: add support for ST M41T94 SPI RTC 2008-07-24 10:47:33 -07:00
rtc-m48t59.c rtc: fix platform driver hotplug/coldplug 2008-04-11 08:06:44 -07:00
rtc-m48t86.c rtc: fix platform driver hotplug/coldplug 2008-04-11 08:06:44 -07:00
rtc-max6900.c rtc: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:17 -07:00
rtc-max6902.c rtc: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:17 -07:00
rtc-omap.c rtc: rtc-omap footprint shrinkage 2008-07-24 10:47:33 -07:00
rtc-pcf8563.c rtc-pcf8563: add chip id 2008-07-12 14:33:42 -07:00
rtc-pcf8583.c rtc: convert the PCF8583 driver to the new I2C style framework with device_ids 2008-07-24 10:47:34 -07:00
rtc-pl030.c [RTC] rtc-pl030: add driver, remove old non-rtc lib driver 2008-05-22 14:56:38 +01:00
rtc-pl031.c [RTC] rtc-pl031: use proper resources, use proper apis, clean up includes 2008-05-22 14:56:36 +01:00
rtc-ppc.c rtc: class driver for ppc_md RTC functions 2008-06-06 11:29:13 -07:00
rtc-proc.c drivers: use non-racy method for proc entries creation (2) 2008-04-29 08:06:22 -07:00
rtc-r9701.c rtc-r9701.c: silence compiler warning 2008-02-09 23:27:01 -08:00
rtc-rs5c313.c rtc: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:17 -07:00
rtc-rs5c348.c [PATCH] rtc: Make rtc-rs5c348 driver hotplug-aware 2007-08-27 02:16:58 +01:00
rtc-rs5c372.c i2c: Convert most new-style drivers to use module aliasing 2008-04-29 23:11:40 +02:00
rtc-s3c.c rtc: rtc-s3c: update IRQ handling 2008-07-24 10:47:34 -07:00
rtc-s35390a.c i2c: Match dummy devices by type 2008-05-11 20:37:06 +02:00
rtc-sa1100.c Merge branches 'at91', 'dyntick', 'ep93xx', 'iop', 'ixp', 'misc', 'orion', 'omap-reviewed', 'rpc', 'rtc' and 's3c' into devel 2008-07-10 16:38:50 +01:00
rtc-sh.c rtc: rtc-sh: Fixup for 64-bit resources. 2008-05-08 19:51:45 +09:00
rtc-stk17ta8.c rtc: fix platform driver hotplug/coldplug 2008-04-11 08:06:44 -07:00
rtc-sysfs.c rtc: add the support for alarm time relative to current time in sysfs 2008-04-28 08:58:17 -07:00
rtc-test.c rtc: silence section mismatch warning in rtc-test 2008-04-28 08:58:16 -07:00
rtc-v3020.c rtc: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:17 -07:00
rtc-vr41xx.c rtc: fix platform driver hotplug/coldplug 2008-04-11 08:06:44 -07:00
rtc-x1205.c rtc-x1205: Fix alarm set 2008-07-04 10:40:05 -07:00