From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Tue, 7 Oct 2014 14:41:22 +0000 (+0300)
Subject: drm/i915: Cache HPLL frequency on VLV/CHV
X-Git-Tag: omap-for-v3.19/fixes-rc1~80^2~64^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6bcda4f0dfcbe78349b5b283af892913299c8b2a;p=pandora-kernel.git

drm/i915: Cache HPLL frequency on VLV/CHV

We need the HPLL frequency when calculating cdclk. Currently we read
that out from the hardware every single time, which isn't going to fly
very well if the device is runtime suspended. So cache the HPLL
frequency in dev_priv and use the cached value.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reference: https://bugs.freedesktop.org/show_bug.cgi?id=82939
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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