diff options
Diffstat (limited to 'arch/mips/loongson64/common/dma-swiotlb.c')
| -rw-r--r-- | arch/mips/loongson64/common/dma-swiotlb.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c index 178ca17a5667..34486c138206 100644 --- a/arch/mips/loongson64/common/dma-swiotlb.c +++ b/arch/mips/loongson64/common/dma-swiotlb.c @@ -75,19 +75,11 @@ static void loongson_dma_sync_sg_for_device(struct device *dev, mb(); } -static int loongson_dma_set_mask(struct device *dev, u64 mask) +static int loongson_dma_supported(struct device *dev, u64 mask) { - if (!dev->dma_mask || !dma_supported(dev, mask)) - return -EIO; - - if (mask > DMA_BIT_MASK(loongson_sysconf.dma_mask_bits)) { - *dev->dma_mask = DMA_BIT_MASK(loongson_sysconf.dma_mask_bits); - return -EIO; - } - - *dev->dma_mask = mask; - - return 0; + if (mask > DMA_BIT_MASK(loongson_sysconf.dma_mask_bits)) + return 0; + return swiotlb_dma_supported(dev, mask); } dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) @@ -126,8 +118,7 @@ static const struct dma_map_ops loongson_dma_map_ops = { .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, .sync_sg_for_device = loongson_dma_sync_sg_for_device, .mapping_error = swiotlb_dma_mapping_error, - .dma_supported = swiotlb_dma_supported, - .set_dma_mask = loongson_dma_set_mask + .dma_supported = loongson_dma_supported, }; void __init plat_swiotlb_setup(void) |