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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>
This commit is contained in:
Nicolin Chen 2013-11-12 15:10:00 -08:00 committed by Linus Torvalds
parent 1112b9e2c9
commit 92a2e1cb53
1 changed files with 1 additions and 2 deletions
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3
sound/soc/pxa/mmp-pcm.c
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@ -201,10 +201,9 @@ static int mmp_pcm_preallocate_dma_buffer(struct snd_pcm_substream *substream,
if (!gpool) if (!gpool)
return -ENOMEM; return -ENOMEM;
buf->area = (unsigned char *)gen_pool_alloc(gpool, size); buf->area = gen_pool_dma_alloc(gpool, size, &buf->addr);
if (!buf->area) if (!buf->area)
return -ENOMEM; return -ENOMEM;
buf->addr = gen_pool_virt_to_phys(gpool, (unsigned long)buf->area);
buf->bytes = size; buf->bytes = size;
return 0; return 0;
} }