From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Date: Wed, 14 Aug 2013 21:23:49 +0000 (-0700)
Subject: leds-pca9633: Add mutex to the ledout register
X-Git-Tag: v3.12-rc1~32^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7d0e9884fd7594d4de5066add5135ac6bb55bd4;p=pandora-kernel.git

leds-pca9633: Add mutex to the ledout register

To update an LED a register has to be read, updated and writen. If
another LED whas been updated at the same time, this could lead into
wrong updates.

This patch adds a common mutex to all the leds of the same chip to
protect the ledout register.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
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