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>
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@ -38,6 +38,7 @@
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/i2c.h>
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#include <linux/regulator/consumer.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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@ -49,9 +50,18 @@
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#include "tlv320aic3x.h"
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#define AIC3X_NUM_SUPPLIES 4
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static const char *aic3x_supply_names[AIC3X_NUM_SUPPLIES] = {
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"IOVDD", /* I/O Voltage */
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"DVDD", /* Digital Core Voltage */
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"AVDD", /* Analog DAC Voltage */
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"DRVDD", /* ADC Analog and Output Driver Voltage */
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};
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/* codec private data */
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struct aic3x_priv {
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struct snd_soc_codec codec;
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struct regulator_bulk_data supplies[AIC3X_NUM_SUPPLIES];
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unsigned int sysclk;
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int master;
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};
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@ -1268,6 +1278,9 @@ static int aic3x_unregister(struct aic3x_priv *aic3x)
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snd_soc_unregister_dai(&aic3x_dai);
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snd_soc_unregister_codec(&aic3x->codec);
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regulator_bulk_disable(ARRAY_SIZE(aic3x->supplies), aic3x->supplies);
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regulator_bulk_free(ARRAY_SIZE(aic3x->supplies), aic3x->supplies);
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kfree(aic3x);
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aic3x_codec = NULL;
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@ -1289,6 +1302,7 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
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{
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struct snd_soc_codec *codec;
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struct aic3x_priv *aic3x;
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int ret, i;
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aic3x = kzalloc(sizeof(struct aic3x_priv), GFP_KERNEL);
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if (aic3x == NULL) {
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@ -1304,7 +1318,30 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
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i2c_set_clientdata(i2c, aic3x);
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for (i = 0; i < ARRAY_SIZE(aic3x->supplies); i++)
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aic3x->supplies[i].supply = aic3x_supply_names[i];
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ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(aic3x->supplies),
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aic3x->supplies);
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if (ret != 0) {
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dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
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goto err_get;
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}
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ret = regulator_bulk_enable(ARRAY_SIZE(aic3x->supplies),
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aic3x->supplies);
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if (ret != 0) {
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dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
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goto err_enable;
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}
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return aic3x_register(codec);
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err_enable:
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regulator_bulk_free(ARRAY_SIZE(aic3x->supplies), aic3x->supplies);
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err_get:
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kfree(aic3x);
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return ret;
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}
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static int aic3x_i2c_remove(struct i2c_client *client)
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