linux-toradex.git/drivers/rtc/rtc-omap.c, branch v2.6.37.2

rtc: omap: let device wakeup capability be configured from chip init logic

2010-10-28T01:03:06+00:00

The rtc-omap driver currently hardcodes the RTC wakeup capability to be
"not capable".  While this seems to be true for existing OMAP1 boards
which are not wired for this, the DA850/OMAP-L138 SoC, the RTC can always
be wake up source from its "deep sleep" mode.

This patch lets the wakeup capability be set from platform data and does
not override the setting from the driver.  For DA850/OMAP-L138, this is
done from arch/arm/mach-davinci/devices-da8xx.c:da8xx_register_rtc()

Note that this patch does not change the behavior on any existing OMAP1
board since the platform device registration sets the wakeup capability to
0 by default.

Signed-off-by: Sekhar Nori 
Signed-off-by: Kevin Hilman 
Cc: Alessandro Zummo 
Cc: Wan ZongShun 
Cc: Tony Lindgren 
Cc: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: make rtc-omap driver ioremap its register space

2009-12-16T15:20:00+00:00

The rtc-omap driver currently assumes that the rtc's registers are at a
fixed address and already mapped into virtual memory space.  Remove those
assumptions so the same driver can be used for similar devices that reside
at different physical addresses (e.g., TI's DA8xx/OMAP-L13x SoC's).

Also allow the possibility for the timer and alarm interrupts to use the
same IRQ.

Signed-off-by: Mark A. Greer 
Acked-by: David Brownell 
Acked-by: Kevin Hilman 
Acked-by: Tony Lindgren 
Signed-off-by: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

trivial: remove unnecessary semicolons

2009-09-21T13:14:58+00:00

Signed-off-by: Joe Perches 
Signed-off-by: Jiri Kosina

rtc: struct device - replace bus_id with dev_name(), dev_set_name()

2009-03-24T23:38:22+00:00

Cc: a.zummo@towertech.it
Cc: rtc-linux@googlegroups.com
Signed-off-by: Kay Sievers 
Signed-off-by: Alessandro Zummo 
Signed-off-by: Greg Kroah-Hartman

drivers/rtc/: use bcd2bin/bin2bcd

2008-10-20T15:52:41+00:00

Change drivers/rtc/ to use the new bcd2bin/bin2bcd functions instead of
the obsolete BCD_TO_BIN/BIN_TO_BCD/BCD2BIN/BIN2BCD macros.

Signed-off-by: Adrian Bunk 
Acked-by: Alessandro Zummo 
Cc: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: rtc-omap footprint shrinkage

2008-07-24T17:47:33+00:00

Shrink the runtime footprint of the OMAP1 RTC driver a bunch by removing
some old hacks and switching to platform_driver_probe().

Signed-off-by: David Brownell 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[RTC] remove references to asm/mach/time.h

2008-05-22T13:56:35+00:00

asm/mach/time.h is the ARM header file for setting up kernel ticker
timekeeping (be that the old jiffy interrupt or the new clocksource.)
RTC drivers have no business using this header file, and in fact do
not require it.

Build tested on at91sam9rl, omap and s3c2410 configurations.

Acked-by: Alessandro Zummo 
Acked-by: Andrew Victor 
Signed-off-by: Russell King

rtc: fix platform driver hotplug/coldplug

2008-04-11T15:06:44+00:00

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable RTC
platform drivers, to re-enable module auto loading.

[dbrownell@users.sourceforge.net: more drivers, minor fix]
Signed-off-by: Kay Sievers 
Signed-off-by: David Brownell 
Cc: Greg KH 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc-omap build fix

2007-05-17T12:23:05+00:00

Fix typo which breaks build.  How did that happen?

Signed-off-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: remove "RTC_ALM_SET mode" bugs

2007-05-08T18:15:19+00:00

This fixes a common glitch in how RTC drivers handle two "set alarm" modes,
by getting rid of the surprising/hidden one that was rarely implemented
correctly (and which could expose nonportable hardware-specific behavior).

The glitch comes from the /dev/rtcX logic implementing the legacy
RTC_ALM_SET (limited to 24 hours, needing RTC_AIE_ON) ioctl on top of the
RTC driver call providing access to the newer RTC_WKALM_SET (without those
limitations) by initializing the day/month/year fields to be invalid ...
that second mode.

Now, since few RTC drivers check those fields, and most hardware misbehaves
when faced with invalid date fields, many RTC drivers will set bogus alarm
times on those RTC_ALM_SET code paths.  (Several in-tree drivers have that
issue, and I also noticed it with code reviews on several new RTC drivers.)

This patch ensures that RTC drivers never see such invalid alarm fields, by
moving some logic out of rtc-omap into the RTC_ALM_SET code and adding an
explicit check (which will prevent the issue on other code paths).

Signed-off-by: David Brownell 
Cc: Scott Wood 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds