| From 612e3785e34dcfe88cce1c8695077533a807e49e Mon Sep 17 00:00:00 2001 |
| From: Geert Uytterhoeven <geert+renesas@glider.be> |
| Date: Mon, 2 Jun 2014 15:38:08 +0200 |
| Subject: spi: rspi: Don't consider DMA configuration failures fatal |
| |
| Fall back to PIO if DMA configuration failed. |
| |
| Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> |
| Signed-off-by: Mark Brown <broonie@linaro.org> |
| (cherry picked from commit 27e105a6006b8ce1b55709c5e24f63959981475d) |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| --- |
| drivers/spi/spi-rspi.c | 6 ++---- |
| 1 file changed, 2 insertions(+), 4 deletions(-) |
| |
| diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c |
| index fdbd46d0c570..94a99ec7d989 100644 |
| --- a/drivers/spi/spi-rspi.c |
| +++ b/drivers/spi/spi-rspi.c |
| @@ -1190,10 +1190,8 @@ static int rspi_probe(struct platform_device *pdev) |
| } |
| |
| ret = rspi_request_dma(rspi, pdev); |
| - if (ret < 0) { |
| - dev_err(&pdev->dev, "rspi_request_dma failed.\n"); |
| - goto error3; |
| - } |
| + if (ret < 0) |
| + dev_warn(&pdev->dev, "DMA not available, using PIO\n"); |
| |
| ret = devm_spi_register_master(&pdev->dev, master); |
| if (ret < 0) { |
| -- |
| 2.1.2 |
| |
