ACPI battery: only refresh the sysfs files when pertinent information changes
authorAndy Whitcroft <apw@canonical.com>
Thu, 3 May 2012 13:48:26 +0000 (14:48 +0100)
committerLen Brown <len.brown@intel.com>
Tue, 8 May 2012 05:49:57 +0000 (01:49 -0400)
commitc5971456964290da7e98222892797b71ef793e62
tree6fc98ba750ce3542024f64f2de1a44ae7fe12e06
parentfebb72a6e4cc6c8cffcc1ea649a3fb364f1ea432
ACPI battery: only refresh the sysfs files when pertinent information changes

We only need to regenerate the sysfs files when the capacity units
change, avoid the update otherwise.

The origin of this issue is dates way back to 2.6.38:
da8aeb92d4853f37e281f11fddf61f9c7d84c3cd
(ACPI / Battery: Update information on info notification and resume)

cc: <stable@vger.kernel.org>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Tested-by: Ralf Jung <post@ralfj.de>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/acpi/battery.c