This patch adds a hook in drm_connector_helper_funcs to get the support of the driver for adaptive sync functionality.
This can be called in the connector probe helper function after the connector detect() and get_modes() hooks to also query the adaptive sync support of the driver.
Cc: Jani Nikula jani.nikula@linux.intel.com Cc: Ville Syrjälä ville.syrjala@linux.intel.com Cc: Harry Wentland harry.wentland@amd.com Cc: Nicholas Kazlauskas Nicholas.Kazlauskas@amd.com Signed-off-by: Manasi Navare manasi.d.navare@intel.com --- drivers/gpu/drm/drm_probe_helper.c | 4 ++++ include/drm/drm_modeset_helper_vtables.h | 16 ++++++++++++++++ 2 files changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index 576b4b7dcd89..4403817bfb02 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -482,6 +482,10 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
count = (*connector_funcs->get_modes)(connector);
+ /* Get the Adaptive Sync Support if helper exists */ + if (*connector_funcs->get_adaptive_sync_support) + (**connector_funcs->get_adaptive_sync_support)(connector); + /* * Fallback for when DDC probe failed in drm_get_edid() and thus skipped * override/firmware EDID. diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h index 7c20b1c8b6a7..0b203fdd25df 100644 --- a/include/drm/drm_modeset_helper_vtables.h +++ b/include/drm/drm_modeset_helper_vtables.h @@ -1079,6 +1079,22 @@ struct drm_connector_helper_funcs { struct drm_writeback_job *job); void (*cleanup_writeback_job)(struct drm_writeback_connector *connector, struct drm_writeback_job *job); + + /** + * @get_adaptive_sync_support: + * + * This hook is used by the probe helper to get the driver's support + * for adaptive sync or variable refresh rate. + * This is called from drm_helper_probe_single_connector_modes() + * This is called after the @get_modes hook so that the connector modes + * are already obtained and EDID is parsed to obtain the monitor + * range descriptor information. + * + * This hook is optional and defined only for the drivers and on + * connectors that advertise adaptive sync support. + * + */ + void (*get_adaptive_sync_support)(struct drm_connector *connector); };
/**