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ASoC: rt1015: Add condition to prevent SoC providing bclk in ratio of 50 times of sample rate.

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Add condition to prevent SoC providing bclk in ratio of 50 times of sample rate.

Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20200504112013.2499-1-jack.yu@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jack Yu 2020-05-04 19:20:13 +08:00 committed by Mark Brown
parent c25504ad64
commit d696a61413
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 28 additions and 0 deletions
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27
sound/soc/codecs/rt1015.c
View File

@ -780,6 +780,14 @@ static int rt1015_set_component_pll(struct snd_soc_component *component,
freq_out == rt1015->pll_out)
return 0;
if (source == RT1015_PLL_S_BCLK) {
if (rt1015->bclk_ratio == 0) {
dev_err(component->dev,
"Can not support bclk ratio as 0.\n");
return -EINVAL;
}
}
switch (source) {
case RT1015_PLL_S_MCLK:
snd_soc_component_update_bits(component, RT1015_CLK2,
@ -819,12 +827,30 @@ static int rt1015_set_component_pll(struct snd_soc_component *component,
return 0;
}
static int rt1015_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
{
struct snd_soc_component *component = dai->component;
struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
dev_dbg(component->dev, "%s ratio=%d\n", __func__, ratio);
rt1015->bclk_ratio = ratio;
if (ratio == 50) {
dev_dbg(component->dev, "Unsupport bclk ratio\n");
return -EINVAL;
}
return 0;
}
static int rt1015_probe(struct snd_soc_component *component)
{
struct rt1015_priv *rt1015 =
snd_soc_component_get_drvdata(component);
rt1015->component = component;
rt1015->bclk_ratio = 0;
snd_soc_component_write(component, RT1015_BAT_RPO_STEP1, 0x061c);
return 0;
@ -844,6 +870,7 @@ static void rt1015_remove(struct snd_soc_component *component)
static struct snd_soc_dai_ops rt1015_aif_dai_ops = {
.hw_params = rt1015_hw_params,
.set_fmt = rt1015_set_dai_fmt,
.set_bclk_ratio = rt1015_set_bclk_ratio,
};
static struct snd_soc_dai_driver rt1015_dai[] = {

1
sound/soc/codecs/rt1015.h
View File

@ -362,6 +362,7 @@ struct rt1015_priv {
int sysclk_src;
int lrck;
int bclk;
int bclk_ratio;
int id;
int pll_src;
int pll_in;