drm/i915: vlv: init only needed state during early power well enabling
During the initial power well enabling on the driver init/resume path we can avoid initialzing part of the HW/SW state that will be initialized anyway by the subsequent init/resume code. For some steps like HPD initialization this redundancy is not only an overhead but an actual problem, since they can't be run this early in the overall init sequence. Add a flag marking the init phase and skip reinitialzing state that is not strictly necessary based on that. This is also needed by the upcoming HPD init restructuring by Thierry and Daniel. Signed-off-by: NImre Deak <imre.deak@intel.com> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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