[PATCH v4 2/2] staging: iio: ad7780: remove unnecessary stashed voltage value

[Renato Lui Geh <renatogeh@xxxxxxxxx>]

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@xxxxxxxxx>
---
Changes in v3:
	- removed unnecessary int_vref_mv from ad7780_state
Changes in v4:
	- removed voltage reading on probe

drivers/staging/iio/adc/ad7780.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index c7cb05cedbbc..52a914360574 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -42,7 +42,6 @@ struct ad7780_state {
	struct regulator		*reg;
	struct gpio_desc		*powerdown_gpio;
	unsigned int	gain;
-	u16				int_vref_mv;

	struct ad_sigma_delta sd;
};
@@ -165,7 +164,7 @@ 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)
@@ -185,16 +184,10 @@ 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;
--
2.19.1