Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 5e2cb2f6 authored by Daniel Vetter's avatar Daniel Vetter Committed by Dave Airlie
Browse files

drm: properly init/reset connector status 



This can help drivers to make somewhat intelligent decisions in their
->detect callback: If the connector is hpd capable and in the unknown
state, the driver needs to force a full detect cycle. Otherwise it
could just (if it chooses so) to update the connector state from it's
hpd handler directly, and always return that in the ->detect callback.

Atm only drm/i915 calls drm_mode_config_reset at resume time, so other
drivers would need to add that call first before using this facility.

Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 69787f7d

drivers/gpu/drm/drm_crtc.c

+5 −1
Original line number Diff line number Diff line
@@ -553,6 +553,7 @@ int drm_connector_init(struct drm_device *dev, 
	INIT_LIST_HEAD(&connector->probed_modes);

	INIT_LIST_HEAD(&connector->modes);

	connector->edid_blob_ptr = NULL;

	connector->status = connector_status_unknown;



	list_add_tail(&connector->head, &dev->mode_config.connector_list);

	dev->mode_config.num_connector++;
@@ -3672,10 +3673,13 @@ void drm_mode_config_reset(struct drm_device *dev) 
		if (encoder->funcs->reset)

			encoder->funcs->reset(encoder);



	list_for_each_entry(connector, &dev->mode_config.connector_list, head)

	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {

		connector->status = connector_status_unknown;



		if (connector->funcs->reset)

			connector->funcs->reset(connector);

	}

}

EXPORT_SYMBOL(drm_mode_config_reset);



int drm_mode_create_dumb_ioctl(struct drm_device *dev,