drm/i915: avoid reading non-existent PLL reg on Ironlake+
authorJesse Barnes <jbarnes@virtuousgeek.org>
Thu, 30 Dec 2010 17:36:39 +0000 (09:36 -0800)
committerChris Wilson <chris@chris-wilson.co.uk>
Tue, 11 Jan 2011 20:37:05 +0000 (20:37 +0000)
commitdbdc647927a0f4b34e7cf486889d8f671f73d2e5
tree8d508c0c84ed651ec82e4f274708ef01e868456b
parentd78cb50baa9177353d6719612b83558a9bf2d59b
drm/i915: avoid reading non-existent PLL reg on Ironlake+

These functions need to be reworked for Ironlake and above, but until
then at least avoid reading non-existent registers.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[ickle: combine with a gratuitous tidy]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
drivers/gpu/drm/i915/intel_display.c