tree 0d74b0fa17306f70b65510c855ce3d0807f6363e
parent 3c535bca9a43eb04d64537b55994c88e399a9981
author Bartosz Golaszewski <bgolaszewski@baylibre.com> 1420467652 +0100
committer Guenter Roeck <linux@roeck-us.net> 1422249838 -0800

hwmon: (ina2xx) reinitialize the chip in case it's been reset

Chips from the ina family don't like to be uninitialized. In case the power
is cut-off and restored again the calibration register will be reset
to 0 and both the power and current registers will remain at 0.

Check the calibration register in ina2xx_update_device() and reinitialize
the chip if needed.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>