On Mon, Jul 02, 2018 at 02:20:14PM +0200, Boris Brezillon wrote:
> Not all writeback connector implementations might want to commit things
> from the connector driver. Some, like the malidp driver, commit things
> from their main commit_tail() function, and would rather not have to
> implement a dummy hook for drm_connector_helper_funcs.atomic_commit().
>
> Make this function optional and reflect this fact in the doc.
>
> Signed-off-by: Boris Brezillon <boris.brezil...@bootlin.com>
Acked-by: Liviu Dudau <liviu.du...@arm.com>
Thanks!
Liviu
> ---
> Changes in v3:
> - New patch
> ---
> drivers/gpu/drm/drm_atomic_helper.c | 2 ++
> include/drm/drm_modeset_helper_vtables.h | 2 ++
> 2 files changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c
> b/drivers/gpu/drm/drm_atomic_helper.c
> index 69063bcf2334..ea19fcc252dc 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -1184,6 +1184,8 @@ static void drm_atomic_helper_commit_writebacks(struct
> drm_device *dev,
> const struct drm_connector_helper_funcs *funcs;
>
> funcs = connector->helper_private;
> + if (!funcs->funcs->atomic_commit)
> + continue;
>
> if (new_conn_state->writeback_job &&
> new_conn_state->writeback_job->fb) {
> WARN_ON(connector->connector_type !=
> DRM_MODE_CONNECTOR_WRITEBACK);
> diff --git a/include/drm/drm_modeset_helper_vtables.h
> b/include/drm/drm_modeset_helper_vtables.h
> index fb841f44949c..d0eb76c4b309 100644
> --- a/include/drm/drm_modeset_helper_vtables.h
> +++ b/include/drm/drm_modeset_helper_vtables.h
> @@ -983,6 +983,8 @@ struct drm_connector_helper_funcs {
> * The writeback_job to commit is available in
> * &drm_connector_state.writeback_job.
> *
> + * This hook is optional.
> + *
> * This callback is used by the atomic modeset helpers.
> */
> void (*atomic_commit)(struct drm_connector *connector,
> --
> 2.14.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
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