diff options
| author | Jarkko Nikula <jhnikula@gmail.com> | 2010-04-26 15:49:14 +0300 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-04-27 11:19:23 +0100 |
| commit | 07779fdd1a236145b5f5dc6916c6b84d9712b305 (patch) | |
| tree | a2f3c6a45022ddd55cdfdd8f4493da52ac2eec8f /sound/soc/codecs | |
| parent | db13802e51f29c40b404038485121a3973c0947d (diff) | |
ASoC: tlv320aic3x: Add basic regulator support
This patch adds the TLV320AIC3x supplies and enables all of them for the
entire lifetime of the device.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc/codecs')
| -rw-r--r-- | sound/soc/codecs/tlv320aic3x.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index 6b74ad808a09..584bc1e67f76 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -38,6 +38,7 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> +#include <linux/regulator/consumer.h> #include <linux/platform_device.h> #include <sound/core.h> #include <sound/pcm.h> @@ -49,9 +50,18 @@ #include "tlv320aic3x.h" +#define AIC3X_NUM_SUPPLIES 4 +static const char *aic3x_supply_names[AIC3X_NUM_SUPPLIES] = { + "IOVDD", /* I/O Voltage */ + "DVDD", /* Digital Core Voltage */ + "AVDD", /* Analog DAC Voltage */ + "DRVDD", /* ADC Analog and Output Driver Voltage */ +}; + /* codec private data */ struct aic3x_priv { struct snd_soc_codec codec; + struct regulator_bulk_data supplies[AIC3X_NUM_SUPPLIES]; unsigned int sysclk; int master; }; @@ -1268,6 +1278,9 @@ static int aic3x_unregister(struct aic3x_priv *aic3x) snd_soc_unregister_dai(&aic3x_dai); snd_soc_unregister_codec(&aic3x->codec); + regulator_bulk_disable(ARRAY_SIZE(aic3x->supplies), aic3x->supplies); + regulator_bulk_free(ARRAY_SIZE(aic3x->supplies), aic3x->supplies); + kfree(aic3x); aic3x_codec = NULL; @@ -1289,6 +1302,7 @@ static int aic3x_i2c_probe(struct i2c_client *i2c, { struct snd_soc_codec *codec; struct aic3x_priv *aic3x; + int ret, i; aic3x = kzalloc(sizeof(struct aic3x_priv), GFP_KERNEL); if (aic3x == NULL) { @@ -1304,7 +1318,30 @@ static int aic3x_i2c_probe(struct i2c_client *i2c, i2c_set_clientdata(i2c, aic3x); + for (i = 0; i < ARRAY_SIZE(aic3x->supplies); i++) + aic3x->supplies[i].supply = aic3x_supply_names[i]; + + ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(aic3x->supplies), + aic3x->supplies); + if (ret != 0) { + dev_err(codec->dev, "Failed to request supplies: %d\n", ret); + goto err_get; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(aic3x->supplies), + aic3x->supplies); + if (ret != 0) { + dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); + goto err_enable; + } + return aic3x_register(codec); + +err_enable: + regulator_bulk_free(ARRAY_SIZE(aic3x->supplies), aic3x->supplies); +err_get: + kfree(aic3x); + return ret; } static int aic3x_i2c_remove(struct i2c_client *client) |