drm/i915: kill intel_resume_prepare()
Because, really, the abstraction is not working for us. It is nice for VLV, but doesn't add anything useful on SNB/HSW/BDW. We want to change this code due to a recently-discovered bug, but we can't seem to find a nice solution that repects the current abstraction. So let's kill intel_resume_prepare() and its friends, and add an equivalent implementation to both its callers. Also, look at the diffstat! v2: - Rebase. Signed-off-by: NPaulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: NImre Deak <imre.deak@intel.com> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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