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>

diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index aa0521a309db2bc933244bdebaa237e46f8b87df..c4a85789c2db6bb7af680c427dbbdba3dfb1847b 100644 (file)
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -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;