diff options
Diffstat (limited to 'sound/soc/codecs/cs42l42.c')
| -rw-r--r-- | sound/soc/codecs/cs42l42.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 99c022be94a6..fb1e4c33e27d 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -586,6 +586,7 @@ struct cs42l42_pll_params { * Table 4-5 from the Datasheet */ static const struct cs42l42_pll_params pll_ratio_table[] = { + { 1411200, 0, 1, 0x00, 0x80, 0x000000, 0x03, 0x10, 11289600, 128, 2}, { 1536000, 0, 1, 0x00, 0x7D, 0x000000, 0x03, 0x10, 12000000, 125, 2}, { 2304000, 0, 1, 0x00, 0x55, 0xC00000, 0x02, 0x10, 12288000, 85, 2}, { 2400000, 0, 1, 0x00, 0x50, 0x000000, 0x03, 0x10, 12000000, 80, 2}, @@ -843,6 +844,13 @@ static int cs42l42_pcm_hw_params(struct snd_pcm_substream *substream, if (channels == 1) cs42l42->bclk *= 2; + /* + * Assume 24-bit samples are in 32-bit slots, to prevent SCLK being + * more than assumed (which would result in overclocking). + */ + if (params_width(params) == 24) + cs42l42->bclk = (cs42l42->bclk / 3) * 4; + switch(substream->stream) { case SNDRV_PCM_STREAM_CAPTURE: if (channels == 2) { @@ -890,10 +898,23 @@ static int cs42l42_set_sysclk(struct snd_soc_dai *dai, { struct snd_soc_component *component = dai->component; struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); + int i; - cs42l42->sclk = freq; + if (freq == 0) { + cs42l42->sclk = 0; + return 0; + } - return 0; + for (i = 0; i < ARRAY_SIZE(pll_ratio_table); i++) { + if (pll_ratio_table[i].sclk == freq) { + cs42l42->sclk = freq; + return 0; + } + } + + dev_err(component->dev, "SCLK %u not supported\n", freq); + + return -EINVAL; } static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream) @@ -2106,4 +2127,7 @@ MODULE_DESCRIPTION("ASoC CS42L42 driver"); MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>"); MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>"); MODULE_AUTHOR("Michael White, Cirrus Logic Inc, <michael.white@cirrus.com>"); +MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>"); +MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>"); +MODULE_AUTHOR("Vitaly Rodionov <vitalyr@opensource.cirrus.com>"); MODULE_LICENSE("GPL"); |