From: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Date: Fri, 21 Jun 2013 07:05:28 +0000 (+0800)
Subject: i2c: designware: Manually set RESTART bit between messages
X-Git-Tag: v3.12-rc1~140^2~49
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=825642455367e5498da82a8044dd345ac7869c8d;p=pandora-kernel.git

i2c: designware: Manually set RESTART bit between messages

If both IC_EMPTYFIFO_HOLD_MASTER_EN and IC_RESTART_EN are set to 1, the
Designware I2C controller doesn't generate RESTART unless user specifically
requests it by setting RESTART bit in IC_DATA_CMD register.

Since IC_EMPTYFIFO_HOLD_MASTER_EN setting can't be detected from hardware
register, we must always manually set the restart bit between messages.

Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

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