diff options
| author |   Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2020-03-25 16:29:04 -0500 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2020-03-26 18:48:08 +0000 |
| commit | f7cc9b996e7417708b8168697762e4bc97fa6696 (patch) | |
| tree | 6f73e1b058ef740d2dc670598ba63bd7478f96f4 /sound/soc/codecs | |
| parent | ASoC: mchp-i2s-mcc: make signed 1 bit bitfields unsigned (diff) | |
| download | wireguard-linux-f7cc9b996e7417708b8168697762e4bc97fa6696.tar.xz wireguard-linux-f7cc9b996e7417708b8168697762e4bc97fa6696.zip | |
ASoC: rt1308-sdw: add set_tdm_slot() support
Add ability to select which of the channels is used, or both, in case
two RT1308 amplifiers are located on the same link.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200325212905.28145-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs')
| -rw-r--r-- | sound/soc/codecs/rt1308-sdw.c | 23 | ||||
| -rw-r--r-- | sound/soc/codecs/rt1308-sdw.h | 2 |
2 files changed, 25 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c index d930f60cb797..8763192434c4 100644 --- a/sound/soc/codecs/rt1308-sdw.c +++ b/sound/soc/codecs/rt1308-sdw.c @@ -507,6 +507,28 @@ static void rt1308_sdw_shutdown(struct snd_pcm_substream *substream, kfree(stream); } +static int rt1308_sdw_set_tdm_slot(struct snd_soc_dai *dai, + unsigned int tx_mask, + unsigned int rx_mask, + int slots, int slot_width) +{ + struct snd_soc_component *component = dai->component; + struct rt1308_sdw_priv *rt1308 = + snd_soc_component_get_drvdata(component); + + if (tx_mask) + return -EINVAL; + + if (slots > 2) + return -EINVAL; + + rt1308->rx_mask = rx_mask; + rt1308->slots = slots; + /* slot_width is not used since it's irrelevant for SoundWire */ + + return 0; +} + static int rt1308_sdw_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { @@ -597,6 +619,7 @@ static const struct snd_soc_dai_ops rt1308_aif_dai_ops = { .hw_free = rt1308_sdw_pcm_hw_free, .set_sdw_stream = rt1308_set_sdw_stream, .shutdown = rt1308_sdw_shutdown, + .set_tdm_slot = rt1308_sdw_set_tdm_slot, }; #define RT1308_STEREO_RATES SNDRV_PCM_RATE_48000 diff --git a/sound/soc/codecs/rt1308-sdw.h b/sound/soc/codecs/rt1308-sdw.h index c9341e70d6cf..c5ce75666dcc 100644 --- a/sound/soc/codecs/rt1308-sdw.h +++ b/sound/soc/codecs/rt1308-sdw.h @@ -160,6 +160,8 @@ struct rt1308_sdw_priv { struct sdw_bus_params params; bool hw_init; bool first_hw_init; + int rx_mask; + int slots; }; struct sdw_stream_data { |