w1: add Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC support

Add support for the Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC.

It was suggested to combine this functionality with the current ds2782
driver.  Unfortunately, I'm unable to commit the time to refactoring this
driver to that extent and I don't have a platform with the ds2782 part to
validate that there are no regression issues by adding this functionality.

[akpm@linux-foundation.org: use min_t()]
Signed-off-by: Clifton Barnes <cabarnes@indesign-llc.com>
Tested-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 52a462fc6b8..dc8c531ed27 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -68,6 +68,13 @@ config BATTERY_DS2760
         help
           Say Y here to enable support for batteries with ds2760 chip.
 
+config BATTERY_DS2780
+        tristate "DS2780 battery driver"
+        select W1
+        select W1_SLAVE_DS2780
+        help
+          Say Y here to enable support for batteries with ds2780 chip.
+
 config BATTERY_DS2782
         tristate "DS2782/DS2786 standalone gas-gauge"
         depends on I2C