Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-09 06:33:34 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ASoC: cs42l42: Validate dai_set_sysclk() frequency

Browse Source 
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>
This commit is contained in:
Richard Fitzgerald 2021-08-05 17:11:09 +01:00 committed by Mark Brown
parent b962bae81f
commit 24cdbb79bb
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
sound/soc/codecs/cs42l42.c
View File

@ -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)