From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Sat, 23 Aug 2014 20:44:09 +0000 (+0400)
Subject: Revert "i2c: rcar: remove spinlock"
X-Git-Tag: fixes-v3.17-rc4~17^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=91bfe2989af02e709ca01ccf518c4fbda3efc70f;p=pandora-kernel.git

Revert "i2c: rcar: remove spinlock"

This reverts commit 150b8be3cda54412ad7b54f5392b513b25c0aaa7.

The I2C core's per-adapter locks can't protect from IRQs, so the driver still
needs a spinlock to protect the register accesses.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

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