Bjørn Mork 508b3c6776 Revert "ACPI / battery: fix wrong value of capacity_now reported when fully charged"
This reverts commit 232de5143790 ("ACPI / battery: fix wrong value of
capacity_now reported when fully charged")

There is nothing wrong or unexpected about 'capacity_now' increasing above
the last 'full_charge_capacity' value. Different charging cycles will cause
'full_charge_capacity' to vary, both up and down.  Good battery firmwares
will update 'full_charge_capacity' when the current charging cycle is
complete, increasing it if necessary. It might even go above
'design_capacity' on a fresh and healthy battery.

Capping 'capacity_now' to 'full_charge_capacity' is plain wrong, and
printing a warning if this doesn't happen to match the 'design_capacity'
is both annoying and terribly wrong.

This results in bogus warnings on perfectly working systems/firmwares:

 [Firmware Bug]: battery: reported current charge level (39800) is higher than reported maximum charge level (39800).

and wrong values being reported for 'capacity_now' and
'full_charge_capacity' after the warning has been triggered.

Fixes: 232de5143790 ("ACPI / battery: fix wrong value of capacity_now reported when fully charged")
Cc: 3.16+ <stable@vger.kernel.org> # 3.16+
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-09 16:20:12 +02:00
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