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path: root/drivers/staging/iio/frequency/ad9832.c
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Diffstat (limited to 'drivers/staging/iio/frequency/ad9832.c')
-rw-r--r--drivers/staging/iio/frequency/ad9832.c66
1 files changed, 40 insertions, 26 deletions
diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index 358400b22d33..a5b2f068168d 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -204,7 +204,6 @@ static int ad9832_probe(struct spi_device *spi)
struct ad9832_platform_data *pdata = dev_get_platdata(&spi->dev);
struct iio_dev *indio_dev;
struct ad9832_state *st;
- struct regulator *reg;
int ret;
if (!pdata) {
@@ -212,21 +211,35 @@ static int ad9832_probe(struct spi_device *spi)
return -ENODEV;
}
- reg = devm_regulator_get(&spi->dev, "vcc");
- if (!IS_ERR(reg)) {
- ret = regulator_enable(reg);
- if (ret)
- return ret;
- }
-
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
- if (!indio_dev) {
- ret = -ENOMEM;
- goto error_disable_reg;
- }
+ if (!indio_dev)
+ return -ENOMEM;
+
spi_set_drvdata(spi, indio_dev);
st = iio_priv(indio_dev);
- st->reg = reg;
+
+ st->avdd = devm_regulator_get(&spi->dev, "avdd");
+ if (IS_ERR(st->avdd))
+ return PTR_ERR(st->avdd);
+
+ ret = regulator_enable(st->avdd);
+ if (ret) {
+ dev_err(&spi->dev, "Failed to enable specified AVDD supply\n");
+ return ret;
+ }
+
+ st->dvdd = devm_regulator_get(&spi->dev, "dvdd");
+ if (IS_ERR(st->dvdd)) {
+ ret = PTR_ERR(st->dvdd);
+ goto error_disable_avdd;
+ }
+
+ ret = regulator_enable(st->dvdd);
+ if (ret) {
+ dev_err(&spi->dev, "Failed to enable specified DVDD supply\n");
+ goto error_disable_avdd;
+ }
+
st->mclk = pdata->mclk;
st->spi = spi;
@@ -277,42 +290,43 @@ static int ad9832_probe(struct spi_device *spi)
ret = spi_sync(st->spi, &st->msg);
if (ret) {
dev_err(&spi->dev, "device init failed\n");
- goto error_disable_reg;
+ goto error_disable_dvdd;
}
ret = ad9832_write_frequency(st, AD9832_FREQ0HM, pdata->freq0);
if (ret)
- goto error_disable_reg;
+ goto error_disable_dvdd;
ret = ad9832_write_frequency(st, AD9832_FREQ1HM, pdata->freq1);
if (ret)
- goto error_disable_reg;
+ goto error_disable_dvdd;
ret = ad9832_write_phase(st, AD9832_PHASE0H, pdata->phase0);
if (ret)
- goto error_disable_reg;
+ goto error_disable_dvdd;
ret = ad9832_write_phase(st, AD9832_PHASE1H, pdata->phase1);
if (ret)
- goto error_disable_reg;
+ goto error_disable_dvdd;
ret = ad9832_write_phase(st, AD9832_PHASE2H, pdata->phase2);
if (ret)
- goto error_disable_reg;
+ goto error_disable_dvdd;
ret = ad9832_write_phase(st, AD9832_PHASE3H, pdata->phase3);
if (ret)
- goto error_disable_reg;
+ goto error_disable_dvdd;
ret = iio_device_register(indio_dev);
if (ret)
- goto error_disable_reg;
+ goto error_disable_dvdd;
return 0;
-error_disable_reg:
- if (!IS_ERR(reg))
- regulator_disable(reg);
+error_disable_dvdd:
+ regulator_disable(st->dvdd);
+error_disable_avdd:
+ regulator_disable(st->avdd);
return ret;
}
@@ -323,8 +337,8 @@ static int ad9832_remove(struct spi_device *spi)
struct ad9832_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
- if (!IS_ERR(st->reg))
- regulator_disable(st->reg);
+ regulator_disable(st->dvdd);
+ regulator_disable(st->avdd);
return 0;
}