diff options
Diffstat (limited to 'drivers/iio/adc/ad7298.c')
| -rw-r--r-- | drivers/iio/adc/ad7298.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c index 48d43cb0f932..fa1047f74a1f 100644 --- a/drivers/iio/adc/ad7298.c +++ b/drivers/iio/adc/ad7298.c @@ -23,8 +23,6 @@ #include <linux/iio/trigger_consumer.h> #include <linux/iio/triggered_buffer.h> -#include <linux/platform_data/ad7298.h> - #define AD7298_WRITE BIT(15) /* write to the control register */ #define AD7298_REPEAT BIT(14) /* repeated conversion enable */ #define AD7298_CH(x) BIT(13 - (x)) /* channel select */ @@ -283,7 +281,6 @@ static const struct iio_info ad7298_info = { static int ad7298_probe(struct spi_device *spi) { - struct ad7298_platform_data *pdata = spi->dev.platform_data; struct ad7298_state *st; struct iio_dev *indio_dev; int ret; @@ -294,14 +291,18 @@ static int ad7298_probe(struct spi_device *spi) st = iio_priv(indio_dev); - if (pdata && pdata->ext_ref) + st->reg = devm_regulator_get_optional(&spi->dev, "vref"); + if (!IS_ERR(st->reg)) { st->ext_ref = AD7298_EXTREF; + } else { + ret = PTR_ERR(st->reg); + if (ret != -ENODEV) + return ret; - if (st->ext_ref) { - st->reg = devm_regulator_get(&spi->dev, "vref"); - if (IS_ERR(st->reg)) - return PTR_ERR(st->reg); + st->reg = NULL; + } + if (st->reg) { ret = regulator_enable(st->reg); if (ret) return ret; |