sound/soc/pxa/mmp-pcm.c: use gen_pool_dma_alloc() to allocate dma buffer

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <[email protected]>
Cc: Eric Miao <[email protected]>
Cc: Russell King <[email protected]>
Cc: Haojian Zhuang <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Mark Brown <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 8235e231d89c013dd957f08b3336a0d3d3a941e4..7929e19b0ef5970b1942da441770df909f29629e 100644 (file)
--- a/sound/soc/pxa/mmp-pcm.c
+++ b/sound/soc/pxa/mmp-pcm.c
@@ -201,10 +201,9 @@ static int mmp_pcm_preallocate_dma_buffer(struct snd_pcm_substream *substream,
        if (!gpool)
                return -ENOMEM;
 
-       buf->area = (unsigned char *)gen_pool_alloc(gpool, size);
+       buf->area = gen_pool_dma_alloc(gpool, size, &buf->addr);
        if (!buf->area)
                return -ENOMEM;
-       buf->addr = gen_pool_virt_to_phys(gpool, (unsigned long)buf->area);
        buf->bytes = size;
        return 0;
 }