From: Fabio Estevam <festevam@gmail.com>
To: gregkh@linuxfoundation.org
Cc: michael@walle.cc, linux-serial@vger.kernel.org,
Fabio Estevam <festevam@gmail.com>
Subject: [PATCH] serial: fsl_lpuart: Change DMA failure messages to debug level
Date: Thu, 16 Apr 2020 12:15:41 -0300 [thread overview]
Message-ID: <20200416151541.18385-1-festevam@gmail.com> (raw)
Since commit 159381df1442 ("tty: serial: fsl_lpuart: fix DMA operation when
using IOMMU") commit 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.
Fixes: 159381df1442 ("tty: serial: fsl_lpuart: fix DMA operation when using IOMMU")
Signed-off-by: Fabio Estevam <festevam@gmail.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 5d41075964f2..11131cd6cb30 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1514,17 +1514,17 @@ 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;
}
}
--
2.17.1
next reply other threads:[~2020-04-16 15:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-16 15:15 Fabio Estevam [this message]
2020-04-16 15:28 ` [PATCH] serial: fsl_lpuart: Change DMA failure messages to debug level Michael Walle
2020-04-16 15:33 ` Fabio Estevam
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200416151541.18385-1-festevam@gmail.com \
--to=festevam@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-serial@vger.kernel.org \
--cc=michael@walle.cc \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox