diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index fa99824f63b3cb2fe2db343f89582c78eb9bb53b..956c1c86f90d691e725f3db5a91e6565decd2de4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1336,6 +1336,10 @@ struct i915_perf_stream {
 	 */
 	struct list_head link;
 
+	/**
+	 * @wakeref: As we keep the device awake while the perf stream is
+	 * active, we track our runtime pm reference for later release.
+	 */
 	intel_wakeref_t wakeref;
 
 	/**