Am 2020-04-16 17:15, schrieb Fabio Estevam:
Since commit 159381df1442 ("tty: serial: fsl_lpuart: fix DMA operation
when
using IOMMU") commit the following messages are seen when booting
i.MX8QXP:
Are you sure, they weren't seen before? Because before the commit there
were
the same just in _probe() (as dev_info()).
I'm fine with changing it to debug messages, though.
-michael
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@xxxxxxxxx>
---
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;
}
}
