ASoC: DaVinci: pcm, constrain buffer size to multiple of period
The dma setup code assumes that the buffer size is a multiple of the period size. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -244,6 +244,11 @@ static int davinci_pcm_open(struct snd_pcm_substream *substream)
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int ret = 0;
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snd_soc_set_runtime_hwparams(substream, &davinci_pcm_hardware);
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/* ensure that buffer size is a multiple of period size */
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ret = snd_pcm_hw_constraint_integer(runtime,
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SNDRV_PCM_HW_PARAM_PERIODS);
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if (ret < 0)
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return ret;
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prtd = kzalloc(sizeof(struct davinci_runtime_data), GFP_KERNEL);
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if (prtd == NULL)
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