• Geert Uytterhoeven's avatar
    c6x: Provide dummy dma_mmap_coherent() and dma_get_sgtable() · 18180651
    Geert Uytterhoeven authored
    c6x/allmodconfig (assumed):
    
    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>.
    
    C6x 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: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
    Cc: Marek Szyprowski <m.szyprowski@samsung.com>
    Cc: linux-c6x-dev@linux-c6x.org
    Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
    18180651
dma-mapping.h 3.21 KB