From: Jianpeng Ma <majianpeng@gmail.com>
Date: Sun, 20 Oct 2013 18:55:20 +0000 (+0530)
Subject: mmc: omap_hsmmc: fix timeout for cmd and data soft reset
X-Git-Tag: v3.13-rc1~50^2~49
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e881786c9038cd78dfa325b012f4a00ce1bcfd4;p=pandora-kernel.git

mmc: omap_hsmmc: fix timeout for cmd and data soft reset

With HSMMC_HAS_UPDATED_RESET reset of cmd/data (SRC/SRD) can be to
quick and can be missed resulting in wait for software timeout.
With cpu_relax timeout can be long and unpredictable. Use udelay
instead for timeout implementation.

Reported-by: Yuzheng Ma <mayuzheng@kedacom.com>
Tested-by: Yuzheng Ma <mayuzheng@kedacom.com>
Reviewed-by: Hein Tibosch <hein_tibosch@yahoo.es>
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
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