From: Lan Tianyu <tianyu.lan@intel.com>
Date: Mon, 7 Jul 2014 07:47:12 +0000 (+0800)
Subject: ACPI / battery: Retry to get battery information if failed during probing
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~317^2~3^4~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=75646e758a0ecbed5024454507d5be5b9ea9dcbf;p=pandora-kernel.git

ACPI / battery: Retry to get battery information if failed during probing

Some machines (eg. Lenovo Z480) ECs are not stable during boot up
and causes battery driver fails to be loaded due to failure of getting
battery information from EC sometimes. After several retries, the
operation will work. This patch is to retry to get battery information 5
times if the first try fails.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=75581
Reported-and-tested-by: naszar <naszar@ya.ru>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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