From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Fri, 21 Nov 2014 19:54:26 +0000 (+0200)
Subject: drm/i915: Restore the display config after a GPU reset on gen4
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~77^2~9^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca83b9361bf70d5d4171ba54a598a8c8f981f091;p=pandora-kernel.git

drm/i915: Restore the display config after a GPU reset on gen4

On pre-ctg GPU reset also resets the display hardware. Force a mode
restore after the GPU reset, and also re-init clock gating.

v2: Use intel_modeset_init_hw() instead of intel_init_clock_gating()
    in case more relevant stuff gets added there at some point
    Restore interrupts after the reset as well

Tested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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