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staging: iio: ad7780: remove unnecessary stashed voltage value 

This patch removes the unnecessary field int_vref_mv in ad7780_state
referring to the device's voltage.

Signed-off-by: Renato Lui Geh <renatogeh@gmail.com>
Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Renato Lui Geh 2018-11-05 17:16:14 -02:00 committed by Jonathan Cameron
parent 336650c785
commit befa9f6a3e
1 changed files with 1 additions and 8 deletions
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9
drivers/staging/iio/adc/ad7780.c
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@ -51,7 +51,6 @@ struct ad7780_state {
struct regulator *reg;
struct gpio_desc *powerdown_gpio;
unsigned int gain;
u16 int_vref_mv;
struct ad_sigma_delta sd;
};
@ -180,7 +179,7 @@ static int ad7780_probe(struct spi_device *spi)
{
struct ad7780_state *st;
struct iio_dev *indio_dev;
int ret, voltage_uv = 0;
int ret;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (!indio_dev)
@ -200,16 +199,10 @@ static int ad7780_probe(struct spi_device *spi)
dev_err(&spi->dev, "Failed to enable specified AVdd supply\n");
return ret;
}
voltage_uv = regulator_get_voltage(st->reg);
st->chip_info =
&ad7780_chip_info_tbl[spi_get_device_id(spi)->driver_data];
if (voltage_uv)
st->int_vref_mv = voltage_uv / 1000;
else
dev_warn(&spi->dev, "Reference voltage unspecified\n");
spi_set_drvdata(spi, indio_dev);
indio_dev->dev.parent = &spi->dev;