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| author | Songjun Wu <songjun.wu@atmel.com> | 2015-11-19 11:45:32 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-11-20 18:07:23 +0000 |
| commit | 07c55d395041c5b4cbdffd39a1bba41a61f87fe9 (patch) | |
| tree | 149947eb598b38d6b320428a2f5d0370bc81c343 /sound/soc/atmel | |
| parent | 8005c49d9aea74d382f474ce11afbbc7d7130bec (diff) | |
| download | linux-07c55d395041c5b4cbdffd39a1bba41a61f87fe9.tar.bz2 | |
ASoC: Atmel: ClassD: supports mono audio
Modify the code to support mono audio.
Signed-off-by: Songjun Wu <songjun.wu@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/atmel')
| -rw-r--r-- | sound/soc/atmel/atmel-classd.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c index 8276675730ef..dca614177fef 100644 --- a/sound/soc/atmel/atmel-classd.c +++ b/sound/soc/atmel/atmel-classd.c @@ -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, |