return ret;
}
+
+static void register_backlight_device(struct amdgpu_display_manager *dm,
+ struct dc_link *link)
+{
+#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
+ defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
+
+ if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
+ link->type != dc_connection_none) {
+ /* Event if registration failed, we should continue with
+ * DM initialization because not having a backlight control
+ * is better then a black screen.
+ */
+ amdgpu_dm_register_backlight_device(dm);
+
+ if (dm->backlight_dev)
+ dm->backlight_link = link;
+ }
+#endif
+}
+
+
/* In this architecture, the association
* connector -> encoder -> crtc
* id not really requried. The crtc and connector will hold the
/* loops over all connectors on the board */
for (i = 0; i < link_cnt; i++) {
+ struct dc_link *link = NULL;
if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) {
DRM_ERROR(
goto fail;
}
- if (dc_link_detect(dc_get_link_at_index(dm->dc, i),
- DETECT_REASON_BOOT))
+ link = dc_get_link_at_index(dm->dc, i);
+
+ if (dc_link_detect(link, DETECT_REASON_BOOT)) {
amdgpu_dm_update_connector_after_detect(aconnector);
+ register_backlight_device(dm, link);
+ }
+
+
}
/* Software is initialized. Now we can register interrupt handlers. */
#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
- if (link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) {
+ if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
+ link->type != dc_connection_none) {
amdgpu_dm_register_backlight_device(dm);
if (dm->backlight_dev) {
return i2c;
}
+
/* Note: this function assumes that dc_link_detect() was called for the
* dc_link which will be represented by this aconnector.
*/
|| connector_type == DRM_MODE_CONNECTOR_eDP)
amdgpu_dm_initialize_dp_connector(dm, aconnector);
-#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
- defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
-
- /* NOTE: this currently will create backlight device even if a panel
- * is not connected to the eDP/LVDS connector.
- *
- * This is less than ideal but we don't have sink information at this
- * stage since detection happens after. We can't do detection earlier
- * since MST detection needs connectors to be created first.
- */
- if (link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) {
- /* Event if registration failed, we should continue with
- * DM initialization because not having a backlight control
- * is better then a black screen.
- */
- amdgpu_dm_register_backlight_device(dm);
-
- if (dm->backlight_dev)
- dm->backlight_link = link;
- }
-#endif
-
out_free:
if (res) {
kfree(i2c);