mirror of https://gitee.com/openkylin/linux.git
iio:max1363: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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@ -397,7 +397,6 @@ static int max1363_read_raw(struct iio_dev *indio_dev,
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{
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struct max1363_state *st = iio_priv(indio_dev);
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int ret;
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unsigned long scale_uv;
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switch (m) {
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case IIO_CHAN_INFO_RAW:
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@ -406,10 +405,9 @@ static int max1363_read_raw(struct iio_dev *indio_dev,
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return ret;
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return IIO_VAL_INT;
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case IIO_CHAN_INFO_SCALE:
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scale_uv = st->vref_uv >> st->chip_info->bits;
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*val = scale_uv / 1000;
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*val2 = (scale_uv % 1000) * 1000;
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return IIO_VAL_INT_PLUS_MICRO;
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*val = st->vref_uv / 1000;
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*val2 = st->chip_info->bits;
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return IIO_VAL_FRACTIONAL_LOG2;
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default:
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return -EINVAL;
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}
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