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ASoC: cpcap: Implement .set_bias_level

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With VAUDIO regulator being always on, we have to put it in low-power mode
when codec is not in use to decrease power usage.

Do so by implementing driver .set_bias_level callback.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Link: https://patch.msgid.link/20250122164129.807247-3-ivo.g.dimitrov.75@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ivaylo Dimitrov 2025-01-22 18:41:26 +02:00 committed by Mark Brown
parent 2014c95afe
commit 5b4288792f
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GPG Key ID: 24D68B725D5487D0
1 changed files with 29 additions and 0 deletions
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29
sound/soc/codecs/cpcap.c
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@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/mfd/motorola-cpcap.h>
#include <sound/core.h>
#include <sound/soc.h>
@ -260,6 +261,7 @@ struct cpcap_audio {
int codec_clk_id;
int codec_freq;
int codec_format;
struct regulator *vaudio;
};
static int cpcap_st_workaround(struct snd_soc_dapm_widget *w,
@ -1637,6 +1639,11 @@ static int cpcap_soc_probe(struct snd_soc_component *component)
snd_soc_component_set_drvdata(component, cpcap);
cpcap->component = component;
cpcap->vaudio = devm_regulator_get(component->dev, "VAUDIO");
if (IS_ERR(cpcap->vaudio))
return dev_err_probe(component->dev, PTR_ERR(cpcap->vaudio),
"Cannot get VAUDIO regulator\n");
cpcap->regmap = dev_get_regmap(component->dev->parent, NULL);
if (!cpcap->regmap)
return -ENODEV;
@ -1649,6 +1656,27 @@ static int cpcap_soc_probe(struct snd_soc_component *component)
return cpcap_audio_reset(component, false);
}
static int cpcap_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
switch (level) {
case SND_SOC_BIAS_OFF:
break;
case SND_SOC_BIAS_PREPARE:
regulator_set_mode(cpcap->vaudio, REGULATOR_MODE_NORMAL);
break;
case SND_SOC_BIAS_STANDBY:
regulator_set_mode(cpcap->vaudio, REGULATOR_MODE_STANDBY);
break;
case SND_SOC_BIAS_ON:
break;
}
return 0;
}
static const struct snd_soc_component_driver soc_codec_dev_cpcap = {
.probe = cpcap_soc_probe,
.controls = cpcap_snd_controls,
@ -1657,6 +1685,7 @@ static const struct snd_soc_component_driver soc_codec_dev_cpcap = {
.num_dapm_widgets = ARRAY_SIZE(cpcap_dapm_widgets),
.dapm_routes = intercon,
.num_dapm_routes = ARRAY_SIZE(intercon),
.set_bias_level = cpcap_set_bias_level,
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,