From: Zhao Yakui <yakui.zhao@intel.com>
Date: Thu, 31 Dec 2009 08:06:04 +0000 (+0800)
Subject: drm/i915: Add DP dpll limit on ironlake and use existing DPLL search function
X-Git-Tag: v2.6.33-rc4~76^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4547668a050e7de3cd73a4c6736dfc2adebff67d;p=pandora-kernel.git

drm/i915: Add DP dpll limit on ironlake and use existing DPLL search function

For some clocks, the old Ironlake DPLL calculator wold give m/n/p
combinations that didn't match the spreadsheet of what HW validation
tests.  Instead, use the G4X DPLL calculator, which does a better job
at it.

So we use the intel_g4x_find_best_pll to calculate the DPLL for CRT/HDMI/LVDS
on ironlake. At the same time to consider the dpll setting for display port, we
add the display port DPLL limit on ironlake, which will directly use the
function of intel_find_pll_ironlake_dp to get the corresponding dpll setting.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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