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Diffstat (limited to 'sound/soc/codecs/sgtl5000.c')
-rw-r--r--sound/soc/codecs/sgtl5000.c70
1 files changed, 32 insertions, 38 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index ff29380..76258f2 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -907,6 +907,7 @@ static int ldo_regulator_register(struct snd_soc_codec *codec,
struct regulator_init_data *init_data,
int voltage)
{
+ dev_err(codec->dev, "this setup needs regulator support in the kernel\n");
return -EINVAL;
}
@@ -1218,6 +1219,34 @@ 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 +1264,9 @@ 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);
- 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);
-
+ ret = sgtl5000_replace_vddd_with_ldo(codec);
+ if (ret)
return ret;
- }
}
ret = regulator_bulk_enable(ARRAY_SIZE(sgtl5000->supplies),
@@ -1287,7 +1295,6 @@ 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 +1302,10 @@ 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)
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