diff options
| author | Martin Povišer <povik+lin@cutebit.org> | 2022-09-15 11:44:43 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-09-19 18:05:36 +0100 |
| commit | ab2940a72dfa823af09abf593512459afe3da460 (patch) | |
| tree | f6180b9ead16d39bb7e6f32e1cedf041124a946c /sound/soc/codecs/cs42l42.c | |
| parent | 94d5f62a91aab6ac9c3f4abfd048cbe5f77153ac (diff) | |
| download | lwn-ab2940a72dfa823af09abf593512459afe3da460.tar.gz lwn-ab2940a72dfa823af09abf593512459afe3da460.zip | |
ASoC: cs42l42: Implement 'set_bclk_ratio'
The driver wants to know the bit rate on the serial bus and takes that
to be the value set by 'set_sysclk'. The 'set_bclk_ratio' op is a better
fit for figuring out the clocking parameters of the serial bus, so
implement that and give it precedence over the prior methods.
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220915094444.11434-11-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/cs42l42.c')
| -rw-r--r-- | sound/soc/codecs/cs42l42.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 0baf98a4236d..bdc7e6bed6ac 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -898,7 +898,10 @@ static int cs42l42_pcm_hw_params(struct snd_pcm_substream *substream, cs42l42->srate = params_rate(params); - if (cs42l42->sclk) { + if (cs42l42->bclk_ratio) { + /* machine driver has set the BCLK/samp-rate ratio */ + bclk = cs42l42->bclk_ratio * params_rate(params); + } else if (cs42l42->sclk) { /* machine driver has set the SCLK */ bclk = cs42l42->sclk; } else { @@ -984,6 +987,17 @@ static int cs42l42_set_sysclk(struct snd_soc_dai *dai, return -EINVAL; } +static int cs42l42_set_bclk_ratio(struct snd_soc_dai *dai, + unsigned int bclk_ratio) +{ + struct snd_soc_component *component = dai->component; + struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); + + cs42l42->bclk_ratio = bclk_ratio; + + return 0; +} + static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream) { struct snd_soc_component *component = dai->component; @@ -1087,6 +1101,7 @@ static const struct snd_soc_dai_ops cs42l42_ops = { .hw_params = cs42l42_pcm_hw_params, .set_fmt = cs42l42_set_dai_fmt, .set_sysclk = cs42l42_set_sysclk, + .set_bclk_ratio = cs42l42_set_bclk_ratio, .mute_stream = cs42l42_mute_stream, }; |