diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index 2b07de235e0d..52a31e1c30a1 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -929,6 +929,10 @@ int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state,
 
 	if (mode != DRM_MODE_DPMS_ON)
 		mode = DRM_MODE_DPMS_OFF;
+
+	if (connector->dpms == mode)
+		goto out;
+
 	connector->dpms = mode;
 
 	crtc = connector->state->crtc;
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 123b04f44ca8..70f8b59d93e5 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -912,6 +912,10 @@ static const struct drm_prop_enum_list hdmi_colorspaces[] = {
  * 	implemented in the DRM core.  This is the only standard connector
  * 	property that userspace can change.
  *
+ * 	On atomic drivers any DPMS setproperty ioctl where the value does not
+ * 	change is completely skipped, otherwise a full atomic commit will occur.
+ * 	On legacy drivers the exact behavior is driver specific.
+ *
  * 	Note that this property cannot be set through the MODE_ATOMIC ioctl,
  * 	userspace must use "ACTIVE" on the CRTC instead.
  *