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ASoC: sgtl5000: refactor registering internal ldo 

The code for registering the internal ldo was present twice. Turn it
into a function instead. Also, inform the user if LDO is used now.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Dong Aisheng <b29396@freescale.com>
Tested-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Wolfram Sang 2011-07-18 17:53:03 +02:00 committed by Mark Brown
parent 1c8371d61e
commit e94a4062c8
1 changed files with 31 additions and 38 deletions
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69
sound/soc/codecs/sgtl5000.c
View File

@ -1218,6 +1218,34 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec)
return 0;
}
static int sgtl5000_replace_vddd_with_ldo(struct snd_soc_codec *codec)
{
struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
int ret;
/* set internal ldo to 1.2v */
ret = ldo_regulator_register(codec, &ldo_init_data, LDO_VOLTAGE);
if (ret) {
dev_err(codec->dev,
"Failed to register vddd internal supplies: %d\n", ret);
return ret;
}
sgtl5000->supplies[VDDD].supply = LDO_CONSUMER_NAME;
ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(sgtl5000->supplies),
sgtl5000->supplies);
if (ret) {
ldo_regulator_remove(codec);
dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
return ret;
}
dev_info(codec->dev, "Using internal LDO instead of VDDD\n");
return 0;
}
static int sgtl5000_enable_regulators(struct snd_soc_codec *codec)
{
u16 reg;
@ -1235,30 +1263,9 @@ static int sgtl5000_enable_regulators(struct snd_soc_codec *codec)
if (!ret)
external_vddd = 1;
else {
/* set internal ldo to 1.2v */
int voltage = LDO_VOLTAGE;
ret = ldo_regulator_register(codec, &ldo_init_data, voltage);
if (ret) {
dev_err(codec->dev,
"Failed to register vddd internal supplies: %d\n",
ret);
ret = sgtl5000_replace_vddd_with_ldo(codec);
if (ret)
return ret;
}
sgtl5000->supplies[VDDD].supply = LDO_CONSUMER_NAME;
ret = regulator_bulk_get(codec->dev,
ARRAY_SIZE(sgtl5000->supplies),
sgtl5000->supplies);
if (ret) {
ldo_regulator_remove(codec);
dev_err(codec->dev,
"Failed to request supplies: %d\n", ret);
return ret;
}
}
ret = regulator_bulk_enable(ARRAY_SIZE(sgtl5000->supplies),
@ -1287,7 +1294,6 @@ static int sgtl5000_enable_regulators(struct snd_soc_codec *codec)
* roll back to use internal LDO
*/
if (external_vddd && rev >= 0x11) {
int voltage = LDO_VOLTAGE;
/* disable all regulator first */
regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies),
sgtl5000->supplies);
@ -1295,23 +1301,10 @@ static int sgtl5000_enable_regulators(struct snd_soc_codec *codec)
regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies),
sgtl5000->supplies);
ret = ldo_regulator_register(codec, &ldo_init_data, voltage);
ret = sgtl5000_replace_vddd_with_ldo(codec);
if (ret)
return ret;
sgtl5000->supplies[VDDD].supply = LDO_CONSUMER_NAME;
ret = regulator_bulk_get(codec->dev,
ARRAY_SIZE(sgtl5000->supplies),
sgtl5000->supplies);
if (ret) {
ldo_regulator_remove(codec);
dev_err(codec->dev,
"Failed to request supplies: %d\n", ret);
return ret;
}
ret = regulator_bulk_enable(ARRAY_SIZE(sgtl5000->supplies),
sgtl5000->supplies);
if (ret)