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staging:iio:ade7758: Use iio_validate_scan_mask_onehot
Only one of the channels of the ade7758 may be sampled at a time. Use the new validate_scan_mask callback and the iio_validate_scan_mask_onehot function to implement this restriction. Previously this was implemented using available_scan_masks, but this requires a individual scan mask for each channel. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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8c2c6ba6aa
commit
ee0312a05d
3 changed files with 2 additions and 7 deletions
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@ -122,7 +122,6 @@ struct ade7758_state {
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u8 *tx;
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u8 *rx;
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struct mutex buf_lock;
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unsigned long available_scan_masks[AD7758_NUM_WAVESRC];
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struct iio_chan_spec *ade7758_ring_channels;
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struct spi_transfer ring_xfer[4];
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struct spi_message ring_msg;
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@ -883,7 +883,7 @@ static const struct iio_info ade7758_info = {
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static int __devinit ade7758_probe(struct spi_device *spi)
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{
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int i, ret;
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int ret;
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struct ade7758_state *st;
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struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st));
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@ -916,11 +916,6 @@ static int __devinit ade7758_probe(struct spi_device *spi)
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indio_dev->info = &ade7758_info;
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indio_dev->modes = INDIO_DIRECT_MODE;
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for (i = 0; i < AD7758_NUM_WAVESRC; i++)
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set_bit(i, &st->available_scan_masks[i]);
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indio_dev->available_scan_masks = st->available_scan_masks;
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ret = ade7758_configure_ring(indio_dev);
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if (ret)
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goto error_free_tx;
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@ -114,6 +114,7 @@ static const struct iio_buffer_setup_ops ade7758_ring_setup_ops = {
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.preenable = &ade7758_ring_preenable,
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.postenable = &iio_triggered_buffer_postenable,
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.predisable = &iio_triggered_buffer_predisable,
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.validate_scan_mask = &iio_validate_scan_mask_onehot,
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};
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void ade7758_unconfigure_ring(struct iio_dev *indio_dev)
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