diff options
Diffstat (limited to 'include/asm-generic/dma-mapping-common.h')
| -rw-r--r-- | include/asm-generic/dma-mapping-common.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h index 67fa6bcd644c..b1bc954eccf3 100644 --- a/include/asm-generic/dma-mapping-common.h +++ b/include/asm-generic/dma-mapping-common.h @@ -340,4 +340,19 @@ static inline int dma_supported(struct device *dev, u64 mask) } #endif +#ifndef HAVE_ARCH_DMA_SET_MASK +static inline int dma_set_mask(struct device *dev, u64 mask) +{ + struct dma_map_ops *ops = get_dma_ops(dev); + + if (ops->set_dma_mask) + return ops->set_dma_mask(dev, mask); + + if (!dev->dma_mask || !dma_supported(dev, mask)) + return -EIO; + *dev->dma_mask = mask; + return 0; +} +#endif + #endif |