tree 1a2b4ef5d6105b4457e3e47df20e1e1a41feca97
parent 72bbe58cd9568c7766cc219a779ea68a02132797
author Keith Packard <keithp@keithp.com> 1316718117 -0700
committer Keith Packard <keithp@keithp.com> 1317147176 -0700

drm/i915: Fix PCH SSC reference clock settings

The PCH refclk settings are global, so we need to look at all of the
encoders, not just the current encoder when deciding how to configure
it. Also, handle systems with more than one panel (any combination of
PCH/non-PCH eDP and LVDS).

Disable SSC clocks when no panels are connected.

Signed-off-by: Keith Packard <keithp@keithp.com>