diff options
| author | Flavio Suligoi <f.suligoi@asem.it> | 2019-04-05 15:40:22 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-04-08 10:09:27 +0300 |
| commit | 8b57b11bc45ee512566513259cd3c302df3c9dae (patch) | |
| tree | 9d0ecad15aaeee1a85003c2f3968caba5472e61b /drivers | |
| parent | 5d785141c8b30d252ebab897429022da379bdb0f (diff) | |
| download | linux-8b57b11bc45ee512566513259cd3c302df3c9dae.tar.xz | |
spi: pxa2xxx: change "no DMA channels..." msg from debug to warning
Change the type of the diagnostic message:
"no DMA channels available, using PIO"
from debug to warning.
The lack of an available DMA channel is very important regard the
spi-pxa2xx performance. The transfer speed can be reduced more than 50%.
So it is very important to warn the user about this, without enabling
the full SPI debug with CONFIG_SPI_DEBUG.
Moreover, enabling the full SPI debug only to enable this specific
debug message, the dmesg buffer fills quickly with a lot of
repetitive information during the SPI data transfer.
This cause the loss of all the first important messages
written during the initialization.
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-pxa2xx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 6160fe0ce7ab..f7068ccfe7d2 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1696,7 +1696,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) if (platform_info->enable_dma) { status = pxa2xx_spi_dma_setup(drv_data); if (status) { - dev_dbg(dev, "no DMA channels available, using PIO\n"); + dev_warn(dev, "no DMA channels available, using PIO\n"); platform_info->enable_dma = false; } else { controller->can_dma = pxa2xx_spi_can_dma; |