diff options
| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2021-08-05 17:11:09 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-08-05 23:33:44 +0100 |
| commit | 24cdbb79bbfe690f7fe87507dd0489670eddb5b0 (patch) | |
| tree | c34a755f681705c598e1cb920723fd0d8171dbcd /sound/soc/codecs | |
| parent | b962bae81fa40fcce7662edcb1e426fa37d32abb (diff) | |
ASoC: cs42l42: Validate dai_set_sysclk() frequency
If the machine driver calls snd_set_sysclk() with an unsupported
SCLK frequency, return an error instead of letting hw_params() fail.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210805161111.10410-6-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs')
| -rw-r--r-- | sound/soc/codecs/cs42l42.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 6895f2fe9eb0..b2ee51443a22 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -891,10 +891,23 @@ 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) |