Commit 07c55d39 authored by Songjun Wu's avatar Songjun Wu Committed by Mark Brown

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
......@@ -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,
......
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