tree 2450b3a252aa347795e26390d513a60eaf6334e5
parent 0922386538f9da8f242b1d52b5538bf9b8ddded5
author Dmitry Torokhov <dmitry.torokhov@gmail.com> 1502394476 -0700
committer Jiri Kosina <jkosina@suse.cz> 1502787363 +0200

HID: input: throttle battery uevents

The power_supply subsystem tends to emit uevent every time
power_supply_changed() is called, so we should call this API only when battery
strength reported by the device is actually different from the previous
readings, otherwise we'll drown the system in uevents.

Fixes: 581c4484769e ("HID: input: map digitizer battery usage")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>