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f0da19347b
For some reason we are switching over to the idle pattern before disabling the DP port on pre-hsw. AFAICS this has never been part of the documented sequence (and on hsw+ the spec explicitly says not to do this). Get rid of it. The code goes all the way back to commit5eb08b69f5("drm/i915: enable DisplayPort support on IGDNG"), and it was accompanied by a 17ms delay which got changed to vbl wait in commitab527efc2f("drm/i915: use wait_for_vblank instead of msleep(17)"), and was later completely removed in commit93c9c19b3d("drm/i915: remove unexplained vblank wait in the DP off code"). Smoke tested on g4x/snb/chv. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250710201718.25310-3-ville.syrjala@linux.intel.com Reviewed-by: Imre Deak <imre.deak@intel.com>