diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 16d6a83..7c41b07 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -201,6 +201,7 @@ struct atmel_spi {
 	struct spi_transfer	*next_transfer;
 	unsigned long		next_remaining_bytes;
 
+	/* scratch buffer */
 	void			*buffer;
 	dma_addr_t		buffer_dma;
 };
@@ -364,7 +365,7 @@ static void atmel_spi_next_xfer_data(struct spi_master *master,
 }
 
 /*
- * Submit next transfer for DMA.
+ * Submit next transfer for PDC.
  * lock is held, spi irq is blocked
  */
 static void atmel_spi_next_xfer(struct spi_master *master,