tree d1ab074ca4a3e6f30fa95473584507776d7ac435
parent 7da9f6cbf70656ed1c913a674b82b68e076c99f7
author Zhenyu Wang <zhenyuw@linux.intel.com> 1270628153 +0800
committer Eric Anholt <eric@anholt.net> 1271089419 -0700

drm/i915: Probe for PCH chipset type

PCH is the new name for south bridge from Ironlake/Sandybridge,
which contains most of the display outputs except eDP. This one
adds a probe function to detect current PCH type, and method to
detect Cougarpoint PCH.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>