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ASoC: atmel-pcm-dma: increase buffer_bytes_max

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atmel-pcm-dma is not limited to a buffer size of 64kB like atmel-pcm-pdc.
Increase buffer_bytes_max to 512kB to allow for higher bit rates (i.e. 32bps at
192kHz) to work correctly. By default, keep the prealloc at 64kB.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alexandre Belloni 2015-03-30 21:40:37 +02:00 committed by Mark Brown
parent 488cb53391
commit c14e2591bf
1 changed files with 2 additions and 2 deletions
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4
sound/soc/atmel/atmel-pcm-dma.c
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@ -54,7 +54,7 @@ static const struct snd_pcm_hardware atmel_pcm_dma_hardware = {
.period_bytes_max = 2 * 0xffff, /* if 2 bytes format */
.periods_min = 8,
.periods_max = 1024, /* no limit */
.buffer_bytes_max = ATMEL_SSC_DMABUF_SIZE,
.buffer_bytes_max = 512 * 1024,
};
/**
@ -119,7 +119,7 @@ static int atmel_pcm_configure_dma(struct snd_pcm_substream *substream,
static const struct snd_dmaengine_pcm_config atmel_dmaengine_pcm_config = {
.prepare_slave_config = atmel_pcm_configure_dma,
.pcm_hardware = &atmel_pcm_dma_hardware,
.prealloc_buffer_size = ATMEL_SSC_DMABUF_SIZE,
.prealloc_buffer_size = 64 * 1024,
};
int atmel_pcm_dma_platform_register(struct device *dev)