drm/amd/display: Report to ACPI video if no panels were found

From Mario Limonciello
adaf41b56803fe7a9a4ac625c7e41615ef23591f in linux-6.1.y/6.1.5
c573e240609ff781a0246c0c8c8351abd0475287 in mainline linux

diff --git a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index fea6ce2..dcc05ff 100644 (file)
--- a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4374,6 +4374,10 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
                amdgpu_set_panel_orientation(&aconnector->base);
        }
 
+       /* If we didn't find a panel, notify the acpi video detection */
+       if (dm->adev->flags & AMD_IS_APU && dm->num_of_edps == 0)
+               acpi_video_report_nolcd();
+
        /* Software is initialized. Now we can register interrupt handlers. */
        switch (adev->asic_type) {
 #if defined(CONFIG_DRM_AMD_DC_SI)