From 8ddfa07778afdd9e00406a6a8ede827d51d9f26e Mon Sep 17 00:00:00 2001
From: hayeswang <hayeswang@realtek.com>
Date: Tue, 9 Sep 2014 11:40:28 +0800
Subject: [PATCH] r8152: use usleep_range

Replace mdelay with usleep_range to avoid busy loop.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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