Op 10-11-17 om 11:53 schreef Daniel Vetter:
> It's useful for syncing async connector work like link retraining.
>
> v2: Make it work (Manasi&Ville)
>
> Cc: Manasi Navare <manasi.d.nav...@intel.com>
> Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
> ---
>  drivers/gpu/drm/drm_atomic_helper.c | 12 +++---------
>  1 file changed, 3 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c 
> b/drivers/gpu/drm/drm_atomic_helper.c
> index c18c271e7508..ced1ac8e68a0 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -1793,11 +1793,8 @@ int drm_atomic_helper_setup_commit(struct 
> drm_atomic_state *state,
>                   
> !try_wait_for_completion(&old_conn_state->commit->flip_done))
>                       return -EBUSY;
>  
> -             /* commit tracked through new_crtc_state->commit, no need to do 
> it explicitly */
> -             if (new_conn_state->crtc)
> -                     continue;
> -
> -             commit = crtc_or_fake_commit(state, old_conn_state->crtc);
> +             /* Always track connectors explicitly for e.g. link retraining. 
> */
> +             commit = crtc_or_fake_commit(state, new_conn_state->crtc ?: 
> old_conn_state->crtc);
>               if (!commit)
>                       return -ENOMEM;
>  
> @@ -1811,10 +1808,7 @@ int drm_atomic_helper_setup_commit(struct 
> drm_atomic_state *state,
>                   
> !try_wait_for_completion(&old_plane_state->commit->flip_done))
>                       return -EBUSY;
>  
> -             /*
> -              * Unlike connectors, always track planes explicitly for
> -              * async pageflip support.
> -              */
> +             /* Always track planes explicitly for async pageflip support. */
>               commit = crtc_or_fake_commit(state, new_plane_state->crtc ?: 
> old_plane_state->crtc);
>               if (!commit)
>                       return -ENOMEM;

First patch reviewed and pushed to drm-misc-next. Will wait for CI_DRM results 
before pushing the second patch, though I don't expect anything breaking from 
this. :-)

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