diff options
| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2019-10-11 16:43:42 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-10-15 22:11:03 +0200 |
| commit | db033831b4f5589f9fcbadb837614a7c4eac0308 (patch) | |
| tree | 0d48f112739b7ecec08f043a5f2aefc9c56b3d7e /drivers/iio/adc/max1027.c | |
| parent | iio: adc: max1027: Make it optional to use interrupts (diff) | |
| download | linux-db033831b4f5589f9fcbadb837614a7c4eac0308.tar.xz linux-db033831b4f5589f9fcbadb837614a7c4eac0308.zip | |
iio: adc: max1027: Reset the device at probe time
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>
Diffstat (limited to 'drivers/iio/adc/max1027.c')
| -rw-r--r-- | drivers/iio/adc/max1027.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index 823223b77a70..f9b473ee6711 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -466,6 +466,14 @@ static int max1027_probe(struct spi_device *spi) } } + /* Internal reset */ + st->reg = MAX1027_RST_REG; + ret = spi_write(st->spi, &st->reg, 1); + if (ret < 0) { + dev_err(&indio_dev->dev, "Failed to reset the ADC\n"); + return ret; + } + /* Disable averaging */ st->reg = MAX1027_AVG_REG; ret = spi_write(st->spi, &st->reg, 1); |