diff options
| author | Alexandru Tachici <alexandru.tachici@analog.com> | 2019-11-18 13:58:07 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-11-23 17:25:02 +0300 |
| commit | a8b26c2ddc83fab7f582405c468df2cbb9b5348a (patch) | |
| tree | 5965decf989c22d98b96a70932a84c856b799399 /drivers/iio/dac | |
| parent | 3922f930de9d83fab3dcdc432ac046d79583e430 (diff) | |
| download | linux-a8b26c2ddc83fab7f582405c468df2cbb9b5348a.tar.xz | |
iio: dac: ad7303: use regulator get optional to check for ext supply
Previously, the code was using the of_read_property_bool() to check if
an external regulator was provided. However, this is redundant, as it's
more simple/direct to just ask the regulator is provided, via a
`devm_regulator_get_optional()` call.
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/dac')
| -rw-r--r-- | drivers/iio/dac/ad7303.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c index 14bbac6bee98..15af8a1cce3e 100644 --- a/drivers/iio/dac/ad7303.c +++ b/drivers/iio/dac/ad7303.c @@ -12,7 +12,6 @@ #include <linux/slab.h> #include <linux/sysfs.h> #include <linux/regulator/consumer.h> -#include <linux/of.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -202,7 +201,6 @@ static int ad7303_probe(struct spi_device *spi) const struct spi_device_id *id = spi_get_device_id(spi); struct iio_dev *indio_dev; struct ad7303_state *st; - bool ext_ref; int ret; indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); @@ -224,24 +222,15 @@ static int ad7303_probe(struct spi_device *spi) if (ret) return ret; - if (spi->dev.of_node) { - ext_ref = of_property_read_bool(spi->dev.of_node, - "REF-supply"); - } else { - struct ad7303_platform_data *pdata = spi->dev.platform_data; - if (pdata && pdata->use_external_ref) - ext_ref = true; - else - ext_ref = false; - } - - if (ext_ref) { - st->vref_reg = devm_regulator_get(&spi->dev, "REF"); - if (IS_ERR(st->vref_reg)) { - ret = PTR_ERR(st->vref_reg); + st->vref_reg = devm_regulator_get_optional(&spi->dev, "REF"); + if (IS_ERR(st->vref_reg)) { + ret = PTR_ERR(st->vref_reg); + if (ret != -ENODEV) goto err_disable_vdd_reg; - } + st->vref_reg = NULL; + } + if (st->vref_reg) { ret = regulator_enable(st->vref_reg); if (ret) goto err_disable_vdd_reg; |