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>

diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index fdbd46d..94a99ec 100644 (file)
--- 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) {