From: Linus Walleij <linus.walleij@stericsson.com>
Date: Thu, 19 May 2011 18:01:25 +0000 (+0200)
Subject: spi/pl022: use cpu_relax in the busy loop
X-Git-Tag: v3.0-rc1~133^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=521999bd4a8c47a86136b9d8223a9480f5906db8;p=pandora-kernel.git

spi/pl022: use cpu_relax in the busy loop

This relaxes the cpu in the polling busy-wait loop.

Reported-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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