On Tue, Jan 24, 2017 at 03:49:35PM -0800, Dhinakaran Pandiyan wrote:
> Having a ->atomic_release callback is useful to release shared resources
> that get allocated in compute_config().
>
> Suggested-by: Daniel Vetter <daniel.vet...@ffwll.ch>
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>
> ---
> include/drm/drm_modeset_helper_vtables.h | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/include/drm/drm_modeset_helper_vtables.h
> b/include/drm/drm_modeset_helper_vtables.h
> index 46f5b34..e41b18a 100644
> --- a/include/drm/drm_modeset_helper_vtables.h
> +++ b/include/drm/drm_modeset_helper_vtables.h
> @@ -831,6 +831,21 @@ struct drm_connector_helper_funcs {
> */
> struct drm_encoder *(*atomic_best_encoder)(struct drm_connector
> *connector,
> struct drm_connector_state
> *connector_state);
> +
> + /**
> + * @atomic_release:
> + *
> + * This function is used to release shared resources that were
> + * previously acquired. For example, resources acquired in
> + * encoder->compute_config() can be released by calling this function
@compute_config is the right way to do references within the same struct.
> + * from mode_fixup()
Same here.
Patch split up is a bit strange, hence why my review of the design is in
later patches.
Thanks, Daniel
> + *
> + * NOTE:
> + *
> + * This function is called in the check phase of an atomic update.
> + */
> + void (*atomic_release)(struct drm_connector *connector,
> + struct drm_connector_state *connector_state);
> };
>
> /**
> --
> 2.7.4
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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