From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 31 Jan 2013 09:03:22 +0000 (+0000)
Subject: thermal: rcar: use mutex lock instead of spin lock
X-Git-Tag: v3.9-rc1~38^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2bbc6a2ace78eaca2f6482b58b984519aa783ac;p=pandora-kernel.git

thermal: rcar: use mutex lock instead of spin lock

Current R-Car thermal driver is using spin lock for each
registers read/write, but it is pointless lock.
This lock is required while reading temperature,
but it needs long wait (= 300ms).
So, this patch used mutex lock while reading temperature,
instead of spin lock for each registers.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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