From: Fabio Estevam <festevam@gmail.com>
Date: Thu, 16 Apr 2020 12:34:53 -0300
Subject: serial: fsl_lpuart: Change DMA failure messages to debug level

Git-commit: 44da03628b841635b157ea8d3fd46626783fe70d
Patch-mainline: v5.8-rc1
References: jsc#SLE-12251

Currently the following messages are seen when booting i.MX8QXP:

fsl-lpuart 5a060000.serial: DMA tx channel request failed, operating without tx DMA (-19)
fsl-lpuart 5a060000.serial: DMA rx channel request failed, operating without rx DMA (-19)

It is not really useful to have such messages on every boot, so change
them to debug level instead.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20200416153453.18825-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 drivers/tty/serial/fsl_lpuart.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index dba730d1801f..6a9909e56449 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1512,17 +1512,17 @@ static void lpuart_request_dma(struct lpuart_port *sport)
 {
 	sport->dma_tx_chan = dma_request_chan(sport->port.dev, "tx");
 	if (IS_ERR(sport->dma_tx_chan)) {
-		dev_info_once(sport->port.dev,
-			      "DMA tx channel request failed, operating without tx DMA (%ld)\n",
-			      PTR_ERR(sport->dma_tx_chan));
+		dev_dbg_once(sport->port.dev,
+			     "DMA tx channel request failed, operating without tx DMA (%ld)\n",
+			     PTR_ERR(sport->dma_tx_chan));
 		sport->dma_tx_chan = NULL;
 	}
 
 	sport->dma_rx_chan = dma_request_chan(sport->port.dev, "rx");
 	if (IS_ERR(sport->dma_rx_chan)) {
-		dev_info_once(sport->port.dev,
-			      "DMA rx channel request failed, operating without rx DMA (%ld)\n",
-			      PTR_ERR(sport->dma_rx_chan));
+		dev_dbg_once(sport->port.dev,
+			     "DMA rx channel request failed, operating without rx DMA (%ld)\n",
+			     PTR_ERR(sport->dma_rx_chan));
 		sport->dma_rx_chan = NULL;
 	}
 }
-- 
2.26.2