diff options
Diffstat (limited to 'sound/soc/codecs/ak4458.c')
| -rw-r--r-- | sound/soc/codecs/ak4458.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/sound/soc/codecs/ak4458.c b/sound/soc/codecs/ak4458.c index cbe3c782e0ca..763e6839428f 100644 --- a/sound/soc/codecs/ak4458.c +++ b/sound/soc/codecs/ak4458.c @@ -12,6 +12,7 @@ #include <linux/of_device.h> #include <linux/of_gpio.h> #include <linux/pm_runtime.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> #include <sound/initval.h> #include <sound/pcm_params.h> @@ -21,6 +22,12 @@ #include "ak4458.h" +#define AK4458_NUM_SUPPLIES 2 +static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = { + "DVDD", + "AVDD", +}; + struct ak4458_drvdata { struct snd_soc_dai_driver *dai_drv; const struct snd_soc_component_driver *comp_drv; @@ -28,6 +35,7 @@ struct ak4458_drvdata { /* AK4458 Codec Private Data */ struct ak4458_priv { + struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES]; struct device *dev; struct regmap *regmap; struct gpio_desc *reset_gpiod; @@ -587,12 +595,22 @@ static int __maybe_unused ak4458_runtime_suspend(struct device *dev) if (ak4458->mute_gpiod) gpiod_set_value_cansleep(ak4458->mute_gpiod, 0); + regulator_bulk_disable(ARRAY_SIZE(ak4458->supplies), + ak4458->supplies); return 0; } static int __maybe_unused ak4458_runtime_resume(struct device *dev) { struct ak4458_priv *ak4458 = dev_get_drvdata(dev); + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies), + ak4458->supplies); + if (ret != 0) { + dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret); + return ret; + } if (ak4458->mute_gpiod) gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); @@ -667,7 +685,7 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) { struct ak4458_priv *ak4458; const struct ak4458_drvdata *drvdata; - int ret; + int ret, i; ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL); if (!ak4458) @@ -692,6 +710,16 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) if (IS_ERR(ak4458->mute_gpiod)) return PTR_ERR(ak4458->mute_gpiod); + for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++) + ak4458->supplies[i].supply = ak4458_supply_names[i]; + + ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies), + ak4458->supplies); + if (ret != 0) { + dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret); + return ret; + } + ret = devm_snd_soc_register_component(ak4458->dev, drvdata->comp_drv, drvdata->dai_drv, 1); if (ret < 0) { @@ -700,6 +728,7 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) } pm_runtime_enable(&i2c->dev); + regcache_cache_only(ak4458->regmap, true); return 0; } |