[PATCH v2 1/7] drm/bridge: ps8640: Use atomic variants of drm_bridge_funcs

[Sam Ravnborg]

Hi Laurent,

> 
> >From a quick look only cadence/cdns-mhdp8546 subclass
> drm_bridge_state and I wonder if the right thing to do would be to
> implement fallback to the helpers if the bridge driver do not set
> any of the .atomic_duplicate_state(), .atomic_destroy_state(), or .atomic_reset().
> 
> That would drop the following from a few bridges:
>         .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
>         .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
>         .atomic_reset = drm_atomic_helper_bridge_reset,

To answer myself here. This would create a dependency from the core to
the helpers which is not OK so idea dropped again.

	Sam