diff options
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/ad7887.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c index 037bcb47693c..99a480ad3985 100644 --- a/drivers/iio/adc/ad7887.c +++ b/drivers/iio/adc/ad7887.c @@ -246,11 +246,15 @@ static int ad7887_probe(struct spi_device *spi) st = iio_priv(indio_dev); - if (!pdata || !pdata->use_onchip_ref) { - st->reg = devm_regulator_get(&spi->dev, "vref"); - if (IS_ERR(st->reg)) + st->reg = devm_regulator_get_optional(&spi->dev, "vref"); + if (IS_ERR(st->reg)) { + if (PTR_ERR(st->reg) != -ENODEV) return PTR_ERR(st->reg); + st->reg = NULL; + } + + if (st->reg) { ret = regulator_enable(st->reg); if (ret) return ret; @@ -269,7 +273,7 @@ static int ad7887_probe(struct spi_device *spi) /* Setup default message */ mode = AD7887_PM_MODE4; - if (!pdata || !pdata->use_onchip_ref) + if (!st->reg) mode |= AD7887_REF_DIS; if (pdata && pdata->en_dual) mode |= AD7887_DUAL; |