OMAP: add TI TWL92330/Menelaus Power Management chip driver

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>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 3944e889cb21..2e1c24f671cf 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -153,4 +153,14 @@ config SENSORS_TSL2550
           This driver can also be built as a module.  If so, the module
           will be called tsl2550.
 
+config MENELAUS
+        bool "TWL92330/Menelaus PM chip"
+        depends on I2C=y && ARCH_OMAP24XX
+        help
+          If you say yes here you get support for the Texas Instruments
+          TWL92330/Menelaus Power Management chip. This include voltage
+          regulators, Dual slot memory card tranceivers, real-time clock
+          and other features that are often used in portable devices like
+          cell phones and PDAs.
+
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