From 322503a15740bd9383bb4ed452e5dd5a40598170 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 30 Oct 2013 15:12:55 +0800
Subject: [PATCH] ARM: imx: add sleep for pllv3 relock

The pllv3 relock time varies in the range of 50us ~ 500us, depending on
the specific PLL type, e.g. 50us for ARM PLL and 450us for Audio/Video
PLL.  Let's add a usleep_range() call instead of doing busy wait during
relock.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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