iio: 104-quad-8: Fix off-by-one errors when addressing IOR
The Input/Output Control register (IOR) is offset by 1 from the
respective channel data register. This patch fixes off-by-one errors
when attempting to write to a channel IOR where the base address was not
properly offset.
Fixes: 28e5d3bb03
("iio: 104-quad-8: Add IIO support for the ACCES 104-QUAD-8")
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
parent
47af2c676a
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7e1c4058e7
@ -153,7 +153,7 @@ static int quad8_write_raw(struct iio_dev *indio_dev,
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ior_cfg = val | priv->preset_enable[chan->channel] << 1;
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ior_cfg = val | priv->preset_enable[chan->channel] << 1;
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/* Load I/O control configuration */
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/* Load I/O control configuration */
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outb(0x40 | ior_cfg, base_offset);
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outb(0x40 | ior_cfg, base_offset + 1);
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return 0;
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return 0;
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case IIO_CHAN_INFO_SCALE:
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case IIO_CHAN_INFO_SCALE:
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@ -241,7 +241,7 @@ static ssize_t quad8_write_set_to_preset_on_index(struct iio_dev *indio_dev,
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size_t len)
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size_t len)
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{
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{
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struct quad8_iio *const priv = iio_priv(indio_dev);
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struct quad8_iio *const priv = iio_priv(indio_dev);
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const int base_offset = priv->base + 2 * chan->channel;
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const int base_offset = priv->base + 2 * chan->channel + 1;
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bool preset_enable;
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bool preset_enable;
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int ret;
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int ret;
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unsigned int ior_cfg;
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unsigned int ior_cfg;
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