From 5da4309f9e1b4de9c2b69e917912fbb84006d44e Mon Sep 17 00:00:00 2001
From: addy ke <addy.ke@rock-chips.com>
Date: Sat, 23 Aug 2014 02:00:52 +0800
Subject: [PATCH] i2c: rk3x: fix bug that cause transfer fails in master
 receive mode

In rk3x SOC, the I2C controller can receive/transmit up to 32 bytes data
in one chunk, so the size of data to be write/read to/from TXDATAx/RXDATAx
must be less than or equal 32 bytes at a time.

Tested on rk3288-pinky board, elan receive 158 bytes data.

Signed-off-by: Addy Ke <addy.ke@rock-chips.com>
Acked-by: Max Schwarz <max.schwarz@online.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
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