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| author | Jonathan Cameron <jic23@kernel.org> | 2016-01-01 18:05:34 +0000 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-01-16 13:06:33 +0000 |
| commit | 9d0be85d4e2cfa2519ae16efe7ff4a7150c43c0b (patch) | |
| tree | 2954d7e4f5c3aec4eb83b26ef27e5f7e72052feb /drivers/iio/adc/ti_am335x_adc.c | |
| parent | fa34e6dd44d7c02c8a8468ce4a52a7506f907bef (diff) | |
| download | linux-9d0be85d4e2cfa2519ae16efe7ff4a7150c43c0b.tar.gz linux-9d0be85d4e2cfa2519ae16efe7ff4a7150c43c0b.tar.bz2 linux-9d0be85d4e2cfa2519ae16efe7ff4a7150c43c0b.zip | |
iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer.
Whilst this part has a hardware buffer, the identifcation that IIO cares
about is the userspace facing end. It this case we push individual elements
from the hardware fifo into the software interface (specifically a kfifo)
rather than providing direct reads through to a hardware buffer
(as we still do in the sca3000 for example).
Technically the original specification as a hardware buffer could be
considered wrong, but it didn't matter until the patch listed below.
Result is that any attempt to enable the buffer will return -EINVAL
Fixes: 225d59adf1c8 ("iio: Specify supported modes for buffers")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/ti_am335x_adc.c')
| -rw-r--r-- | drivers/iio/adc/ti_am335x_adc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index 942320e32753..c1e05532d437 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -289,7 +289,7 @@ static int tiadc_iio_buffered_hardware_setup(struct iio_dev *indio_dev, goto error_kfifo_free; indio_dev->setup_ops = setup_ops; - indio_dev->modes |= INDIO_BUFFER_HARDWARE; + indio_dev->modes |= INDIO_BUFFER_SOFTWARE; return 0; |