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staging:iio:dac:ad5446: Do not check for individual chip ids in probe

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Use the chip_info's int_vref_mv field to decide whether a certain chip has a
internal reference or not. There is no need to check for individual chip ids.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lars-Peter Clausen 2012-04-25 09:44:56 +02:00 committed by Greg Kroah-Hartman
parent 39c58b6079
commit 4e5d3f92cf
1 changed files with 5 additions and 15 deletions
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20
drivers/staging/iio/dac/ad5446.c
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@ -344,22 +344,12 @@ static int __devinit ad5446_probe(struct spi_device *spi)
indio_dev->channels = &st->chip_info->channel;
indio_dev->num_channels = 1;
switch (spi_get_device_id(spi)->driver_data) {
case ID_AD5620_2500:
case ID_AD5620_1250:
case ID_AD5640_2500:
case ID_AD5640_1250:
case ID_AD5660_2500:
case ID_AD5660_1250:
if (st->chip_info->int_vref_mv)
st->vref_mv = st->chip_info->int_vref_mv;
break;
default:
if (voltage_uv)
st->vref_mv = voltage_uv / 1000;
else
dev_warn(&spi->dev,
"reference voltage unspecified\n");
}
else if (voltage_uv)
st->vref_mv = voltage_uv / 1000;
else
dev_warn(&spi->dev, "reference voltage unspecified\n");
ret = iio_device_register(indio_dev);
if (ret)