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linux-bl808/drivers/rtc
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John Stultz f6d5b33125 RTC: Fix early irqs caused by calling rtc_set_alarm too early 
When we register an rtc device at boot, we read the alarm value
in hardware and set the rtc device's aie_timer to that value.

The initial method to do this was to simply call rtc_set_alarm()
with the value read from hardware. However, this may cause problems
as rtc_set_alarm may enable interupts, and the RTC alarm might fire,
which can cause invalid pointer dereferencing since the RTC registration
is not complete.

This patch solves the issue by initializing the rtc_device.aie_timer
y hand via rtc_initialize_alarm(). This avoids any calls to the RTC
hardware which might enable interrupts too early.

CC: Thomas Gleixner <tglx@linutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-03-29 18:44:05 -07:00
..
class.c RTC: Fix early irqs caused by calling rtc_set_alarm too early 2011-03-29 18:44:05 -07:00
hctosys.c
interface.c RTC: Fix early irqs caused by calling rtc_set_alarm too early 2011-03-29 18:44:05 -07:00
Kconfig rtc: add real-time clock driver for NVIDIA Tegra 2011-03-22 17:44:16 -07:00
Makefile rtc: add real-time clock driver for NVIDIA Tegra 2011-03-22 17:44:16 -07:00
rtc-ab3100.c
rtc-ab8500.c
rtc-at32ap700x.c RTC: Convert rtc drivers to use the alarm_irq_enable method 2011-02-03 13:02:35 -08:00
rtc-at91rm9200.c RTC: Clean out UIE icotl implementations 2011-03-09 11:24:54 -08:00
rtc-at91sam9.c RTC: Clean out UIE icotl implementations 2011-03-09 11:24:54 -08:00
rtc-au1xxx.c
rtc-bfin.c RTC: Clean out UIE icotl implementations 2011-03-09 11:24:54 -08:00
rtc-bq32k.c
rtc-bq4802.c
rtc-cmos.c Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-03-15 20:01:36 -07:00
rtc-coh901331.c
rtc-core.h
rtc-davinci.c RTC: Clean out UIE icotl implementations 2011-03-09 11:24:54 -08:00
rtc-dev.c RTC: Re-enable UIE timer/polling emulation 2011-02-17 14:59:42 -08:00
rtc-dm355evm.c
rtc-ds1216.c
rtc-ds1286.c RTC: Convert rtc drivers to use the alarm_irq_enable method 2011-02-03 13:02:35 -08:00
rtc-ds1302.c
rtc-ds1305.c RTC: Convert rtc drivers to use the alarm_irq_enable method 2011-02-03 13:02:35 -08:00
rtc-ds1307.c RTC: Convert rtc drivers to use the alarm_irq_enable method 2011-02-03 13:02:35 -08:00
rtc-ds1374.c rtc: convert DS1374 to dev_pm_ops 2011-03-22 17:44:16 -07:00
rtc-ds1390.c spi/rtc-{ds1390,ds3234,m41t94}: Use spi_get_drvdata() for SPI devices 2011-03-17 10:32:47 -06:00
rtc-ds1511.c drivers/rtc/rtc-ds1511.c: world-writable sysfs nvram file 2011-03-22 17:44:16 -07:00
rtc-ds1553.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-ds1672.c
rtc-ds1742.c
rtc-ds3232.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-ds3234.c spi/rtc-{ds1390,ds3234,m41t94}: Use spi_get_drvdata() for SPI devices 2011-03-17 10:32:47 -06:00
rtc-efi.c
rtc-ep93xx.c
rtc-fm3130.c
rtc-generic.c
rtc-imxdi.c
rtc-isl1208.c drivers/rtc/rtc-isl1208.c: add alarm support 2011-03-22 17:44:16 -07:00
rtc-isl12022.c
rtc-jz4740.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-lib.c
rtc-lpc32xx.c
rtc-m41t80.c RTC: Convert rtc drivers to use the alarm_irq_enable method 2011-02-03 13:02:35 -08:00
rtc-m41t94.c spi/rtc-{ds1390,ds3234,m41t94}: Use spi_get_drvdata() for SPI devices 2011-03-17 10:32:47 -06:00
rtc-m48t35.c
rtc-m48t59.c RTC: Convert rtc drivers to use the alarm_irq_enable method 2011-02-03 13:02:35 -08:00
rtc-m48t86.c
rtc-max6900.c
rtc-max6902.c rtc: rtc-max6902 - set driver data in max6902_probe() 2011-01-13 08:03:12 -08:00
rtc-max8925.c
rtc-max8998.c mfd: Support LP3974 RTC 2011-01-14 12:38:16 +01:00
rtc-mc13xxx.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-mpc5121.c Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6 2011-03-16 17:28:10 -07:00
rtc-mrst.c Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-03-15 20:01:36 -07:00
rtc-msm6242.c RTC: Fix minor compile warning 2011-02-03 13:02:50 -08:00
rtc-mv.c RTC: Convert rtc drivers to use the alarm_irq_enable method 2011-02-03 13:02:35 -08:00
rtc-mxc.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-nuc900.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-omap.c RTC: Clean out UIE icotl implementations 2011-03-09 11:24:54 -08:00
rtc-pcap.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-pcf2123.c
rtc-pcf8563.c
rtc-pcf8583.c
rtc-pcf50633.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-pl030.c Merge branches 'defcfg', 'drivers' and 'cyberpro-next' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-03-17 18:48:35 -07:00
rtc-pl031.c Merge branches 'defcfg', 'drivers' and 'cyberpro-next' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-03-17 18:48:35 -07:00
rtc-proc.c RTC: Include information about UIE and PIE in RTC driver proc. 2011-03-09 11:25:04 -08:00
rtc-ps3.c
rtc-pxa.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-r9701.c
rtc-rp5c01.c RTC: Fix minor compile warning 2011-02-03 13:02:50 -08:00
rtc-rs5c313.c
rtc-rs5c348.c
rtc-rs5c372.c RTC: Clean out UIE icotl implementations 2011-03-09 11:24:54 -08:00
rtc-rx8025.c RTC: Cleanup rtc_class_ops->irq_set_state 2011-03-09 11:23:34 -08:00
rtc-rx8581.c
rtc-s3c.c RTC: Cleanup rtc_class_ops->irq_set_freq() 2011-03-09 11:23:35 -08:00
rtc-s35390a.c
rtc-sa1100.c RTC: sa1100: Update the sa1100 RTC driver. 2011-03-09 11:25:08 -08:00
rtc-sh.c drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
rtc-starfire.c
rtc-stk17ta8.c
rtc-stmp3xxx.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-sun4v.c
rtc-sysfs.c
rtc-tegra.c rtc: add real-time clock driver for NVIDIA Tegra 2011-03-22 17:44:16 -07:00
rtc-test.c RTC: Fix the cross interrupt issue on rtc-test. 2011-03-09 11:25:07 -08:00
rtc-twl.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-tx4939.c
rtc-v3020.c
rtc-vr41xx.c RTC: Cleanup rtc_class_ops->irq_set_freq() 2011-03-09 11:23:35 -08:00
rtc-wm831x.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-wm8350.c RTC: Cleanup rtc_class_ops->update_irq_enable() 2011-03-09 11:23:37 -08:00
rtc-x1205.c