From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Fri, 10 Jan 2014 12:06:45 +0000 (+0200)
Subject: drm/i915: No panel fitter on 830M or non-mobile gen2/3 platforms
X-Git-Tag: v3.14-rc1~47^2~16^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc9e7decf13d49ff80fa690455ad89379b6b01aa;p=pandora-kernel.git

drm/i915: No panel fitter on 830M or non-mobile gen2/3 platforms

PFIT_CONTROL doesn't exist on 830M, so avoid reading it in
i9xx_get_pfit_config().

Also assume that only mobile gen2/3 chipsets have a panel fitter. This
matches the documentation, but I didn't have real hardware to verify.

Gen4 docmentation is a bit inconsistent, but experimenetation on my
LPT machine suggests that the panel fitter is available on non-mobile
gen4 platforms. At least on this machine panel fitter appears works
just fine even on VGA output.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

Reading git-diff-tree failed