From: Andreas Noever <andreas.noever@gmail.com>
Date: Tue, 3 Jun 2014 20:04:05 +0000 (+0200)
Subject: thunderbolt: Scan for downstream switches
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~168^2~97
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9da672a42878c58af5c50d7389dbae17bea9df38;p=pandora-kernel.git

thunderbolt: Scan for downstream switches

Add utility methods tb_port_state and tb_wait_for_port. Add
tb_scan_switch which recursively checks for downstream switches.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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