From: Alex Deucher <alexdeucher@gmail.com>
Date: Tue, 20 Mar 2012 21:18:03 +0000 (-0400)
Subject: drm/radeon/kms/atom: add support for crtc power gating
X-Git-Tag: v3.4-rc1~142^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fef9f91fecf3a767d74823347284e1c0e7b4b849;p=pandora-kernel.git

drm/radeon/kms/atom: add support for crtc power gating

Each pair of crtcs (0/1, 2/3, 4/5) can be power gated.
Make sure the power is applied when the crtc is in use and
only power down the pair when both are off.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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