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Commit 07c55d39 authored by Songjun Wu's avatar Songjun Wu Committed by Mark Brown
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ASoC: Atmel: ClassD: supports mono audio 



Modify the code to support mono audio.

Signed-off-by: default avatarSongjun Wu <songjun.wu@atmel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 8005c49d

sound/soc/atmel/atmel-classd.c

+8 −4
Original line number Diff line number Diff line
@@ -106,7 +106,7 @@ static const struct snd_pcm_hardware atmel_classd_hw = { 
	.rates			= ATMEL_CLASSD_RATES,

	.rate_min		= 8000,

	.rate_max		= 96000,

	.channels_min		= 2,

	.channels_min		= 1,

	.channels_max		= 2,

	.buffer_bytes_max	= 64 * 1024,

	.period_bytes_min	= 256,
@@ -145,7 +145,7 @@ static const struct snd_soc_dai_ops atmel_classd_cpu_dai_ops = { 


static struct snd_soc_dai_driver atmel_classd_cpu_dai = {

	.playback = {

		.channels_min	= 2,

		.channels_min	= 1,

		.channels_max	= 2,

		.rates		= ATMEL_CLASSD_RATES,

		.formats	= SNDRV_PCM_FMTBIT_S16_LE,},
@@ -171,9 +171,13 @@ atmel_classd_platform_configure_dma(struct snd_pcm_substream *substream, 
		return -EINVAL;

	}



	if (params_channels(params) == 1)

		slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;

	else

		slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;



	slave_config->direction		= DMA_MEM_TO_DEV;

	slave_config->dst_addr		= dd->phy_base + CLASSD_THR;

	slave_config->dst_addr_width	= DMA_SLAVE_BUSWIDTH_4_BYTES;

	slave_config->dst_maxburst	= 1;

	slave_config->src_maxburst	= 1;

	slave_config->device_fc		= false;
@@ -486,7 +490,7 @@ static struct snd_soc_dai_driver atmel_classd_codec_dai = { 
	.name = ATMEL_CLASSD_CODEC_DAI_NAME,

	.playback = {

		.stream_name	= "Playback",

		.channels_min	= 2,

		.channels_min	= 1,

		.channels_max	= 2,

		.rates		= ATMEL_CLASSD_RATES,

		.formats	= SNDRV_PCM_FMTBIT_S16_LE,