i2c: sh_mobile: refactor DMA setup
authorWolfram Sang <wsa+renesas@sang-engineering.com>
Tue, 16 Dec 2014 12:31:25 +0000 (13:31 +0100)
committerWolfram Sang <wsa@the-dreams.de>
Wed, 17 Dec 2014 18:26:07 +0000 (19:26 +0100)
Refactor DMA setup to keep the errno so we can implement better
deferred probe support in the next step.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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