diff options
| -rw-r--r-- | Documentation/devicetree/bindings/sound/ak5558.txt | 2 | ||||
| -rw-r--r-- | sound/soc/codecs/ak5558.c | 30 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_sai.c | 2 |
3 files changed, 33 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/ak5558.txt b/Documentation/devicetree/bindings/sound/ak5558.txt index 7d67ca6ced80..36934098170c 100644 --- a/Documentation/devicetree/bindings/sound/ak5558.txt +++ b/Documentation/devicetree/bindings/sound/ak5558.txt @@ -10,6 +10,8 @@ Required properties: Optional properties: - reset-gpios: A GPIO specifier for the power down & reset pin. +- AVDD-supply: Analog power supply +- DVDD-supply: Digital power supply Example: diff --git a/sound/soc/codecs/ak5558.c b/sound/soc/codecs/ak5558.c index 8179512129d3..2f076d5ee284 100644 --- a/sound/soc/codecs/ak5558.c +++ b/sound/soc/codecs/ak5558.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> #include <sound/initval.h> @@ -22,8 +23,15 @@ #include "ak5558.h" +#define AK5558_NUM_SUPPLIES 2 +static const char *ak5558_supply_names[AK5558_NUM_SUPPLIES] = { + "DVDD", + "AVDD", +}; + /* AK5558 Codec Private Data */ struct ak5558_priv { + struct regulator_bulk_data supplies[AK5558_NUM_SUPPLIES]; struct snd_soc_component component; struct regmap *regmap; struct i2c_client *i2c; @@ -299,12 +307,22 @@ static int __maybe_unused ak5558_runtime_suspend(struct device *dev) regcache_cache_only(ak5558->regmap, true); ak5558_power_off(ak5558); + regulator_bulk_disable(ARRAY_SIZE(ak5558->supplies), + ak5558->supplies); return 0; } static int __maybe_unused ak5558_runtime_resume(struct device *dev) { struct ak5558_priv *ak5558 = dev_get_drvdata(dev); + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ak5558->supplies), + ak5558->supplies); + if (ret != 0) { + dev_err(dev, "Failed to enable supplies: %d\n", ret); + return ret; + } ak5558_power_off(ak5558); ak5558_power_on(ak5558); @@ -350,6 +368,7 @@ static int ak5558_i2c_probe(struct i2c_client *i2c) { struct ak5558_priv *ak5558; int ret = 0; + int i; ak5558 = devm_kzalloc(&i2c->dev, sizeof(*ak5558), GFP_KERNEL); if (!ak5558) @@ -367,6 +386,16 @@ static int ak5558_i2c_probe(struct i2c_client *i2c) if (IS_ERR(ak5558->reset_gpiod)) return PTR_ERR(ak5558->reset_gpiod); + for (i = 0; i < ARRAY_SIZE(ak5558->supplies); i++) + ak5558->supplies[i].supply = ak5558_supply_names[i]; + + ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(ak5558->supplies), + ak5558->supplies); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); + return ret; + } + ret = devm_snd_soc_register_component(&i2c->dev, &soc_codec_dev_ak5558, &ak5558_dai, 1); @@ -374,6 +403,7 @@ static int ak5558_i2c_probe(struct i2c_client *i2c) return ret; pm_runtime_enable(&i2c->dev); + regcache_cache_only(ak5558->regmap, true); return 0; } diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index f6969a5d49e3..62c5fdb678fc 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -959,7 +959,7 @@ static int fsl_sai_probe(struct platform_device *pdev) "bus", base, &fsl_sai_regmap_config); /* Compatible with old DTB cases */ - if (IS_ERR(sai->regmap)) + if (IS_ERR(sai->regmap) && PTR_ERR(sai->regmap) != -EPROBE_DEFER) sai->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "sai", base, &fsl_sai_regmap_config); if (IS_ERR(sai->regmap)) { |