From: Alexandru M Stan <amstan@chromium.org>
Date: Wed, 1 Oct 2014 17:40:41 +0000 (-0700)
Subject: i2c: rk3x: fix 0 length write transfers
X-Git-Tag: fixes-for-v3.18-merge-window~42^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf27020d2f253bac6457d6833b97141030f0122a;p=pandora-kernel.git

i2c: rk3x: fix 0 length write transfers

i2cdetect -q was broken (everything was a false positive, and no transfers were
actually being sent over i2c). The way it works is by sending a 0 length write
request and checking for NACK. This patch fixes the 0 length writes and actually
sends them.

Reported-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
---

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