diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c
index 231984882176..2e82731072c9 100644
--- a/sound/soc/fsl/mpc5200_dma.c
+++ b/sound/soc/fsl/mpc5200_dma.c
@@ -107,6 +107,9 @@ static int psc_dma_hw_free(struct snd_soc_component *component,
 
 /**
  * psc_dma_trigger: start and stop the DMA transfer.
+ * @component: triggered component
+ * @substream: triggered substream
+ * @cmd: triggered command
  *
  * This function is called by ALSA to start, stop, pause, and resume the DMA
  * transfer of data.