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@xxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/cs42l42.c | 17 +++++++++++++++--
1 file 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)
--
2.11.0
