staging:iio:resolver:ad2s90 chan spec conversion
Trivial conversion. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -25,45 +25,38 @@ struct ad2s90_state {
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u8 rx[2] ____cacheline_aligned;
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};
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static ssize_t ad2s90_show_angular(struct device *dev,
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struct device_attribute *attr, char *buf)
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static int ad2s90_read_raw(struct iio_dev *indio_dev,
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struct iio_chan_spec const *chan,
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int *val,
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int *val2,
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long m)
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{
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int ret;
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ssize_t len = 0;
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u16 val;
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struct ad2s90_state *st = iio_priv(dev_get_drvdata(dev));
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struct ad2s90_state *st = iio_priv(indio_dev);
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mutex_lock(&st->lock);
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ret = spi_read(st->sdev, st->rx, 2);
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if (ret)
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goto error_ret;
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val = (((u16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4);
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len = sprintf(buf, "%d\n", val);
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*val = (((u16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4);
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error_ret:
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mutex_unlock(&st->lock);
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return ret ? ret : len;
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return IIO_VAL_INT;
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}
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#define IIO_DEV_ATTR_SIMPLE_RESOLVER(_show) \
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IIO_DEVICE_ATTR(angular, S_IRUGO, _show, NULL, 0)
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static IIO_DEV_ATTR_SIMPLE_RESOLVER(ad2s90_show_angular);
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static struct attribute *ad2s90_attributes[] = {
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&iio_dev_attr_angular.dev_attr.attr,
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NULL,
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};
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static const struct attribute_group ad2s90_attribute_group = {
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.attrs = ad2s90_attributes,
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};
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static const struct iio_info ad2s90_info = {
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.attrs = &ad2s90_attribute_group,
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.read_raw = &ad2s90_read_raw,
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.driver_module = THIS_MODULE,
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};
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static const struct iio_chan_spec ad2s90_chan = {
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.type = IIO_ANGL,
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.indexed = 1,
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.channel = 0,
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};
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static int __devinit ad2s90_probe(struct spi_device *spi)
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{
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struct iio_dev *indio_dev;
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@ -83,6 +76,8 @@ static int __devinit ad2s90_probe(struct spi_device *spi)
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indio_dev->dev.parent = &spi->dev;
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indio_dev->info = &ad2s90_info;
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indio_dev->modes = INDIO_DIRECT_MODE;
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indio_dev->channels = &ad2s90_chan;
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indio_dev->num_channels = 1;
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indio_dev->name = spi_get_device_id(spi)->name;
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ret = iio_device_register(indio_dev);
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