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ASoC: omap-pcm: Correct dma mask

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commit d51199a83a2cf82a291d19ee852c44caa511427d upstream.

DMA_BIT_MASK of 64 is not valid dma address mask for OMAPs, it should be
set to 32.
The 64 was introduced by commit (in 2009):
a152ff24b9 ASoC: OMAP: Make DMA 64 aligned

But the dma_mask and coherent_dma_mask can not be used to specify alignment.

Fixes: a152ff24b9 (ASoC: OMAP: Make DMA 64 aligned)
Reported-by: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
[lizf: Backported to 3.4: there's no dma_coerce_mask_and_coherent()]
Signed-off-by: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Peter Ujfalusi 2015-03-03 13:38:14 +02:00 committed by Zefan Li
parent 4863cbc4c7
commit 95f6ecf416
1 changed files with 2 additions and 2 deletions
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4
sound/soc/omap/omap-pcm.c
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@ -333,7 +333,7 @@ static struct snd_pcm_ops omap_pcm_ops = {
.mmap = omap_pcm_mmap,
};
static u64 omap_pcm_dmamask = DMA_BIT_MASK(64);
static u64 omap_pcm_dmamask = DMA_BIT_MASK(32);
static int omap_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
int stream)
@ -384,7 +384,7 @@ static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->dma_mask)
card->dev->dma_mask = &omap_pcm_dmamask;
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(64);
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = omap_pcm_preallocate_dma_buffer(pcm,