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ASoC: ak5386: add regulator consumer support

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The chip has two power supplies, VA and VDD. Enable them both as long
as the codec is in use.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Daniel Mack 2014-03-27 21:42:14 +01:00 committed by Mark Brown
parent 7171511eae
commit fb668e735b
1 changed files with 50 additions and 0 deletions
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50
sound/soc/codecs/ak5386.c
View file

@ -14,12 +14,18 @@
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/of_device.h>
#include <linux/regulator/consumer.h>
#include <sound/soc.h>
#include <sound/pcm.h>
#include <sound/initval.h>
static const char const *supply_names[] = {
"va", "vd"
};
struct ak5386_priv {
int reset_gpio;
struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
};
static const struct snd_soc_dapm_widget ak5386_dapm_widgets[] = {
@ -32,7 +38,42 @@ static const struct snd_soc_dapm_route ak5386_dapm_routes[] = {
{ "Capture", NULL, "AINR" },
};
static int ak5386_soc_probe(struct snd_soc_codec *codec)
{
struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec);
return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies);
}
static int ak5386_soc_remove(struct snd_soc_codec *codec)
{
struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec);
regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies);
return 0;
}
#ifdef CONFIG_PM
static int ak5386_soc_suspend(struct snd_soc_codec *codec)
{
struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec);
regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies);
return 0;
}
static int ak5386_soc_resume(struct snd_soc_codec *codec)
{
struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec);
return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies);
}
#else
#define ak5386_soc_suspend NULL
#define ak5386_soc_resume NULL
#endif /* CONFIG_PM */
static struct snd_soc_codec_driver soc_codec_ak5386 = {
.probe = ak5386_soc_probe,
.remove = ak5386_soc_remove,
.suspend = ak5386_soc_suspend,
.resume = ak5386_soc_resume,
.dapm_widgets = ak5386_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(ak5386_dapm_widgets),
.dapm_routes = ak5386_dapm_routes,
@ -122,6 +163,7 @@ static int ak5386_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ak5386_priv *priv;
int ret, i;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@ -130,6 +172,14 @@ static int ak5386_probe(struct platform_device *pdev)
priv->reset_gpio = -EINVAL;
dev_set_drvdata(dev, priv);
for (i = 0; i < ARRAY_SIZE(supply_names); i++)
priv->supplies[i].supply = supply_names[i];
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies),
priv->supplies);
if (ret < 0)
return ret;
if (of_match_device(of_match_ptr(ak5386_dt_ids), dev))
priv->reset_gpio = of_get_named_gpio(dev->of_node,
"reset-gpio", 0);