1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 5cd7b736a9de..5796539a0bcb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -25,6 +25,7 @@
 #include <linux/acpi.h>
 #include <linux/slab.h>
 #include <linux/power_supply.h>
+#include <linux/pm_runtime.h>
 #include <acpi/video.h>
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
@@ -333,6 +334,16 @@ int amdgpu_atif_handler(struct amdgpu_device *adev,
 #endif
                 }
         }
+        if (req.pending & ATIF_DGPU_DISPLAY_EVENT) {
+                if ((adev->flags & AMD_IS_PX) &&
+                    amdgpu_atpx_dgpu_req_power_for_displays()) {
+                        pm_runtime_get_sync(adev->ddev->dev);
+                        /* Just fire off a uevent and let userspace tell us what to do */
+                        drm_helper_hpd_irq_event(adev->ddev);
+                        pm_runtime_mark_last_busy(adev->ddev->dev);
+                        pm_runtime_put_autosuspend(adev->ddev->dev);
+                }
+        }
         /* TODO: check other events */
 
         /* We've handled the event, stop the notifier chain. The ACPI interface