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3b150f08e5
In a future patch, we'll allow the primary plane to be disabled by userspace via the universal plane API. If a modeset is requested while the primary plane is disabled, crtc->primary->fb will be NULL which generally triggers a full modeset (except in fastboot situations). If we detect that the crtc is active, but there's no primary plane fb, we should still allow a simple plane update rather than a full modeset if the mode isn't actually changing (after re-enabling the primary plane of course). v2: - Enable plane after set_base to avoid enabling the plane if set_base fails, and to make flip+enable atomic (suggested by Ville) - Drop BUG to WARN if we somehow enter the 'fb_changed' modeset case with the crtc disabled (suggested by Ville) Reviewed-by: Chon Ming Lee <chon.ming.lee@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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