Commit 24cdbb79 authored by Richard Fitzgerald's avatar Richard Fitzgerald Committed by Mark Brown

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: default avatarRichard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210805161111.10410-6-rf@opensource.cirrus.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent b962bae8
......@@ -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;
}
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)
......
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