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 <b42378@freescale.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 8235e231d89c..7929e19b0ef5 100644
--- 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;
 }