diff options
| -rw-r--r-- | drivers/staging/vc04_services/bcm2835-audio/bcm2835.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c index 00bc898b0189..f3ad2543d1c0 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c @@ -3,6 +3,7 @@ #include <linux/platform_device.h> +#include <linux/dma-mapping.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/module.h> @@ -273,6 +274,12 @@ static int snd_bcm2835_alsa_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; int err; + err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); + if (err) { + dev_err(dev, "dma_set_mask_and_coherent failed: %d\n", err); + return err; + } + if (num_channels <= 0 || num_channels > MAX_SUBSTREAMS) { num_channels = MAX_SUBSTREAMS; dev_warn(dev, "Illegal num_channels value, will use %u\n", |