From: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Date: Mon, 11 Jul 2011 01:15:45 +0000 (+0900)
Subject: PCI: pciehp: change wait time for valid configuration access
X-Git-Tag: v3.1-rc1~122^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0cab0841dc1400f633a7e1ac1e448518692f927a;p=pandora-kernel.git

PCI: pciehp: change wait time for valid configuration access

Naoki Yanagimoto reported that configuration read on some hot-added
PCIe device returns invalid value. This patch fixes this problem.

According to the PCIe spec, software must wait for at least 1 second
to judge if the hot-added device is broken after Data Link Layer State
Changed Event. This patch changes pciehp driver to wait for 1 second
after the Data Link Layer State Changed Event is detected before
initiating a configuration access instead of 100 ms.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Tested-by: Naoki Yanagimoto <yanagimoto@np.css.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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