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mn10300: Provide dummy dma_mmap_coherent() and dma_get_sgtable()

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mn10300/allmodconfig:

drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implicit declaration of function ‘dma_mmap_coherent’
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit declaration of function ‘dma_get_sgtable’

For architectures using dma_map_ops, dma_mmap_coherent() and
dma_get_sgtable() are provided in <asm-generic/dma-mapping-common.h>.

Mn10300 does not use dma_map_ops, hence it should implement them itself.
For now, use dummy implementations that just return -EINVAL, until the API
has been finalized.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-am33-list@redhat.com
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
This commit is contained in:
Geert Uytterhoeven 2013-01-27 09:33:26 +00:00 committed by Marek Szyprowski
parent 546eda4bca
commit 90582b2a6f
1 changed files with 15 additions and 0 deletions
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15
arch/mn10300/include/asm/dma-mapping.h
View file

@ -168,4 +168,19 @@ void dma_cache_sync(void *vaddr, size_t size,
mn10300_dcache_flush_inv();
}
/* Not supported for now */
static inline int dma_mmap_coherent(struct device *dev,
struct vm_area_struct *vma, void *cpu_addr,
dma_addr_t dma_addr, size_t size)
{
return -EINVAL;
}
static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
void *cpu_addr, dma_addr_t dma_addr,
size_t size)
{
return -EINVAL;
}
#endif