--- ./amd/amdgpu/amdgpu_acpi.c.orig	2019-07-06 00:42:03.000000000 +0000
+++ ./amd/amdgpu/amdgpu_acpi.c	2019-07-23 17:48:36.532435161 +0000
@@ -29,6 +29,9 @@
 #include <acpi/video.h>
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
+#if DRM_VERSION_CODE >= DRM_VERSION(5, 1, 0)
+#include <drm/drm_probe_helper.h>
+#endif
 #include "amdgpu.h"
 #include "amdgpu_pm.h"
 #include "amdgpu_display.h"