diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 426241da2e44..ff6ba6d86cd8 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1516,7 +1516,7 @@ static struct dma_chan *sci_request_dma_chan(struct uart_port *port,
 	chan = dma_request_slave_channel(port->dev,
 					 dir == DMA_MEM_TO_DEV ? "tx" : "rx");
 	if (!chan) {
-		dev_warn(port->dev, "dma_request_slave_channel failed\n");
+		dev_dbg(port->dev, "dma_request_slave_channel failed\n");
 		return NULL;
 	}