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OMAP: add TI TWL92330/Menelaus Power Management chip driver

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Add Texas Instruments TWL92330/Menelaus Power Management chip driver.  This
includes voltage regulators, Dual slot memory card tranceivers and
real-time clock(RTC).

The support for RTC is integrated with this driver only; it is not separate
module.  Passes 'rtctest' on OMAP H4 EVM, other than lack of "periodic"
(1/N second) IRQs.  System wakeup alarms (from suspend-to-RAM) work too.

The battery keeps the RTC active over power off, so once you set clock
(rdate/ntpdate/etc, then "hwclock -w") then RTC_HCTOSYS at boot time will
behave as expected.

Cc: "Jean Delvare" <khali@linux-fr.org>
Cc: "Tony Lindgren" <tony@atomide.com>
Cc: "David Brownell" <david-b@pacbell.net>
Signed-off-by: Trilok Soni <soni.trilok@gmail.com>
Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tony Lindgren
2007-07-17 04:06:09 -07:00
committed by Linus Torvalds
parent 969529021a
commit 0c4a59fed4
4 changed files with 1301 additions and 0 deletions
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drivers/rtc/Kconfig
+9
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@@ -231,6 +231,15 @@ config RTC_DRV_M41T80_WDT
If you say Y here you will get support for the
watchdog timer in ST M41T80 RTC chips series.
config RTC_DRV_TWL92330
boolean "TI TWL92330/Menelaus"
depends on RTC_CLASS && I2C && MENELAUS
help
If you say yes here you get support for the RTC on the
TWL92330 "Menelaus" power mangement chip, used with OMAP2
platforms. The support is integrated with the rest of
the Menelaus driver; it's not separate module.
comment "SPI RTC drivers"
depends on RTC_CLASS && SPI_MASTER