Revert "drm/i915: try to train DP even harder"
This reverts commit 0d710688. Not only that the commit introduces a bogus check (voltage_tries == 5 will never meet at the inserted code path), it brings the i915 driver into an endless dp-train loop on HP Z1 desktop machine with IVY+eDP. At least reverting this commit recovers the framebuffer (but X is still broken by other reasons...) Cc: <stable@vger.kernel.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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