serial: fsl_lpuart: Change DMA failure messages to debug level (44da0362) · Commits · 戴 / test

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>

drivers/tty/serial/fsl_lpuart.c

+6 −6

Original line number	Diff line number	Diff line
		@@ -1512,7 +1512,7 @@ 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,
		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;
		@@ -1520,7 +1520,7 @@ static void lpuart_request_dma(struct lpuart_port *sport)

		sport->dma_rx_chan = dma_request_chan(sport->port.dev, "rx");
		if (IS_ERR(sport->dma_rx_chan)) {
		dev_info_once(sport->port.dev,
		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;

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