iio: adc: max1027: Reset the device at probe time
[ Upstream commit db033831b4
]
All the registers are configured by the driver, let's reset the chip
at probe time, avoiding any conflict with a possible earlier
configuration.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -458,6 +458,14 @@ static int max1027_probe(struct spi_device *spi)
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return ret;
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}
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/* Internal reset */
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st->reg = MAX1027_RST_REG;
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ret = spi_write(st->spi, &st->reg, 1);
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if (ret < 0) {
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dev_err(&indio_dev->dev, "Failed to reset the ADC\n");
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return ret;
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}
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/* Disable averaging */
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st->reg = MAX1027_AVG_REG;
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ret = spi_write(st->spi, &st->reg, 1);
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