Sergei Shtylyov
91bfe2989a
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>
2014-09-04 19:59:42 +02:00
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