drm/atomic: atomic connector properties

Expose the core connector state as properties so it can be updated via
atomic ioctl.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

2 files changed, 16 insertions, 6 deletions

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 131d47f6f7a..57cc68177f0 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -627,7 +627,10 @@ int drm_atomic_connector_set_property(struct drm_connector *connector,
 	struct drm_device *dev = connector->dev;
 	struct drm_mode_config *config = &dev->mode_config;
 
-	if (property == config->dpms_property) {
+	if (property == config->prop_crtc_id) {
+		struct drm_crtc *crtc = drm_crtc_find(dev, val);
+		return drm_atomic_set_crtc_for_connector(state, crtc);
+	} else if (property == config->dpms_property) {
 		/* setting DPMS property requires special handling, which
 		 * is done in legacy setprop path for us.  Disallow (for
 		 * now?) atomic writes to DPMS property:
@@ -665,7 +668,9 @@ int drm_atomic_connector_get_property(struct drm_connector *connector,
 	struct drm_device *dev = connector->dev;
 	struct drm_mode_config *config = &dev->mode_config;
 
-	if (property == config->dpms_property) {
+	if (property == config->prop_crtc_id) {
+		*val = (state->crtc) ? state->crtc->base.id : 0;
+	} else if (property == config->dpms_property) {
 		*val = connector->dpms;
 	} else if (connector->funcs->atomic_get_property) {
 		return connector->funcs->atomic_get_property(connector,
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 46fa0945b53..3cb1fa09ac9 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -831,6 +831,7 @@ int drm_connector_init(struct drm_device *dev,
 		       const struct drm_connector_funcs *funcs,
 		       int connector_type)
 {
+	struct drm_mode_config *config = &dev->mode_config;
 	int ret;
 	struct ida *connector_ida =
 		&drm_connector_enum_list[connector_type].ida;
@@ -869,16 +870,20 @@ int drm_connector_init(struct drm_device *dev,
 
 	/* We should add connectors at the end to avoid upsetting the connector
 	 * index too much. */
-	list_add_tail(&connector->head, &dev->mode_config.connector_list);
-	dev->mode_config.num_connector++;
+	list_add_tail(&connector->head, &config->connector_list);
+	config->num_connector++;
 
 	if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
 		drm_object_attach_property(&connector->base,
-					      dev->mode_config.edid_property,
+					      config->edid_property,
 					      0);
 
 	drm_object_attach_property(&connector->base,
-				      dev->mode_config.dpms_property, 0);
+				      config->dpms_property, 0);
+
+	if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
+		drm_object_attach_property(&connector->base, config->prop_crtc_id, 0);
+	}
 
 	connector->debugfs_entry = NULL;