power: add driver for battery reading on iPaq h3xxx

This adds a driver for reading the battery status of the
battery connected to the Atmel microcontroller on the
iPAQ h3xxx series.

Based on a driver from handhelds.org 2.6.21 kernel, written
by Alessandro GARDICH.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index ba69751..73cfcdf 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -137,6 +137,13 @@
 	  Say Y to enable support for the battery on the Sharp Zaurus
 	  SL-5500 (collie) models.
 
+config BATTERY_IPAQ_MICRO
+	tristate "iPAQ Atmel Micro ASIC battery driver"
+	depends on MFD_IPAQ_MICRO
+	help
+	  Choose this option if you want to monitor battery status on
+	  Compaq/HP iPAQ h3100 and h3600.
+
 config BATTERY_WM97XX
 	bool "WM97xx generic battery driver"
 	depends on TOUCHSCREEN_WM97XX=y