summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/drm_atomic_helper.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
-rw-r--r--drivers/gpu/drm/drm_atomic_helper.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 292e38eb6218..60794fcde1d5 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -290,7 +290,8 @@ static int
update_connector_routing(struct drm_atomic_state *state,
struct drm_connector *connector,
struct drm_connector_state *old_connector_state,
- struct drm_connector_state *new_connector_state)
+ struct drm_connector_state *new_connector_state,
+ bool added_by_user)
{
const struct drm_connector_helper_funcs *funcs;
struct drm_encoder *new_encoder;
@@ -339,9 +340,13 @@ update_connector_routing(struct drm_atomic_state *state,
* there's a chance the connector may have been destroyed during the
* process, but it's better to ignore that then cause
* drm_atomic_helper_resume() to fail.
+ *
+ * Last, we want to ignore connector registration when the connector
+ * was not pulled in the atomic state by user-space (ie, was pulled
+ * in by the driver, e.g. when updating a DP-MST stream).
*/
if (!state->duplicated && drm_connector_is_unregistered(connector) &&
- crtc_state->active) {
+ added_by_user && crtc_state->active) {
drm_dbg_atomic(connector->dev,
"[CONNECTOR:%d:%s] is not registered\n",
connector->base.id, connector->name);
@@ -620,7 +625,10 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
struct drm_connector *connector;
struct drm_connector_state *old_connector_state, *new_connector_state;
int i, ret;
- unsigned int connectors_mask = 0;
+ unsigned int connectors_mask = 0, user_connectors_mask = 0;
+
+ for_each_oldnew_connector_in_state(state, connector, old_connector_state, new_connector_state, i)
+ user_connectors_mask |= BIT(i);
for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
bool has_connectors =
@@ -685,7 +693,8 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
*/
ret = update_connector_routing(state, connector,
old_connector_state,
- new_connector_state);
+ new_connector_state,
+ BIT(i) & user_connectors_mask);
if (ret)
return ret;
if (old_connector_state->crtc) {