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| author |   Mark Brown <broonie@kernel.org> | 2019-06-26 12:39:34 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-06-26 12:39:34 +0100 |
| commit | 53c8b29abe42e5601cfa0ea5962532f0cfdec8a0 (patch) | |
| tree | cad53f42ce7a03c39a984bcdbcc42cd47f1af6f9 /drivers/tty/serial/sh-sci.c | |
| parent | ASoC: soc-core: don't use soc_find_component() at snd_soc_find_dai() (diff) | |
| parent | Linux 5.2-rc6 (diff) | |
| download | linux-dev-53c8b29abe42e5601cfa0ea5962532f0cfdec8a0.tar.xz linux-dev-53c8b29abe42e5601cfa0ea5962532f0cfdec8a0.zip | |
Merge tag 'v5.2-rc6' into asoc-5.3
Linux 5.2-rc6
Diffstat (limited to 'drivers/tty/serial/sh-sci.c')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 3cd139752d3f..abc705716aa0 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1557,6 +1557,13 @@ static void sci_request_dma(struct uart_port *port) dev_dbg(port->dev, "%s: port %d\n", __func__, port->line); + /* + * DMA on console may interfere with Kernel log messages which use + * plain putchar(). So, simply don't use it with a console. + */ + if (uart_console(port)) + return; + if (!port->dev->of_node) return; |