Initial version of LTC2942 driver

linux_kernel_modules/ltc294x/Kconfig

+menuconfig POWER_SUPPLY
+	bool "Power supply class support"
+	help
+	  Say Y here to enable power supply class support. This allows
+	  power supply (batteries, AC, USB) monitoring by userspace
+	  via sysfs and uevent (if available) and/or APM kernel interface
+	  (if selected below).
+
+if POWER_SUPPLY
+
+
+config BATTERY_GAUGE_LTC2941
+	tristate "LTC2941/LTC2943 Battery Gauge Driver"
+	depends on I2C
+	help
+	  Say Y here to include support for LTC2941 and LTC2943 Battery
+	  Gauge IC. The driver reports the charge count continuously, and
+	  measures the voltage and temperature every 10 seconds.
+
+endif # POWER_SUPPLY

linux_kernel_modules/ltc294x/README

+Driver files were copied from git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git  in revision 17825ff6ec6db23892e61a1496abf7d737afe9e7