Add support for reading the source clock from snd_soc_params_to_bclk so the machine driver is not required to call cs42l42_set_sysclk
Signed-off-by: Lucas Tanure tanureal@opensource.cirrus.com --- sound/soc/codecs/cs42l42.c | 17 +++++++++++++---- sound/soc/codecs/cs42l42.h | 1 + 2 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 8345f52ec9d58..7898a2d52a3b7 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -556,10 +556,16 @@ static int cs42l42_pll_config(struct snd_soc_component *component) { struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); int i; + u32 clk; u32 fsync;
+ if (!cs42l42->sclk) + clk = cs42l42->bclk; + else + clk = cs42l42->sclk; + for (i = 0; i < ARRAY_SIZE(pll_ratio_table); i++) { - if (pll_ratio_table[i].sclk == cs42l42->sclk) { + if (pll_ratio_table[i].sclk == clk) { /* Configure the internal sample rate */ snd_soc_component_update_bits(component, CS42L42_MCLK_CTL, CS42L42_INTERNAL_FS_MASK, @@ -579,12 +585,12 @@ static int cs42l42_pll_config(struct snd_soc_component *component) (pll_ratio_table[i].mclk_div << CS42L42_MCLKDIV_SHIFT)); /* Set up the LRCLK */ - fsync = cs42l42->sclk / cs42l42->srate; - if (((fsync * cs42l42->srate) != cs42l42->sclk) + fsync = clk / cs42l42->srate; + if (((fsync * cs42l42->srate) != clk) || ((fsync % 2) != 0)) { dev_err(component->dev, "Unsupported sclk %d/sample rate %d\n", - cs42l42->sclk, + clk, cs42l42->srate); return -EINVAL; } @@ -756,6 +762,7 @@ static int cs42l42_pcm_hw_params(struct snd_pcm_substream *substream, unsigned int val = 0;
cs42l42->srate = params_rate(params); + cs42l42->bclk = snd_soc_params_to_bclk(params);
switch(substream->stream) { case SNDRV_PCM_STREAM_CAPTURE: @@ -888,6 +895,8 @@ static struct snd_soc_dai_driver cs42l42_dai = { .rates = SNDRV_PCM_RATE_8000_192000, .formats = CS42L42_FORMATS, }, + .symmetric_rate = 1, + .symmetric_sample_bits = 1, .ops = &cs42l42_ops, };
diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index 267c2b616e57d..1df9577e367c1 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -772,6 +772,7 @@ struct cs42l42_private { struct completion pdn_done; struct snd_soc_jack jack; int irq; + int bclk; u32 sclk; u32 srate; u8 plug_state;