OSDN Git Service

drm/amd/display: Skip DIG Check if Link is Virtual for Display Count
authorSung Lee <sung.lee@amd.com>
Tue, 24 Sep 2019 17:20:33 +0000 (13:20 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 11 Oct 2019 00:34:41 +0000 (19:34 -0500)
[WHY]
Without a check for virtual links, every link's DIG was getting
checked for enabled or disabled. If link was virtual, since it
did not have a DIG, this would cause issues.

[HOW]
Skip DIG Enable check if link is virtual and add virtual link to
to display count.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c

index 68d3823..cae6a6f 100644 (file)
@@ -79,7 +79,8 @@ int rn_get_active_display_cnt_wa(
                 * S0i2.
                 */
                /* abusing the fact that the dig and phy are coupled to see if the phy is enabled */
-               if (link->link_enc->funcs->is_dig_enabled(link->link_enc))
+               if (link->connector_signal == SIGNAL_TYPE_VIRTUAL ||
+                               link->link_enc->funcs->is_dig_enabled(link->link_enc))
                        display_count++;
        }