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>
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@ -201,10 +201,9 @@ static int mmp_pcm_preallocate_dma_buffer(struct snd_pcm_substream *substream,
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if (!gpool)
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if (!gpool)
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return -ENOMEM;
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return -ENOMEM;
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buf->area = (unsigned char *)gen_pool_alloc(gpool, size);
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buf->area = gen_pool_dma_alloc(gpool, size, &buf->addr);
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if (!buf->area)
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if (!buf->area)
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return -ENOMEM;
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return -ENOMEM;
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buf->addr = gen_pool_virt_to_phys(gpool, (unsigned long)buf->area);
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buf->bytes = size;
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buf->bytes = size;
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return 0;
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return 0;
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}
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}
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