diff options
| author | Octavian Purdila <octavian.purdila@intel.com> | 2015-03-02 20:03:05 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-03-07 20:17:07 +0100 |
| commit | 70dddeee8945a0e62525a278ae7b91778f82f765 (patch) | |
| tree | f286fe21ec087a95cf3c285604f3114a1aaa24af /drivers/iio/adc/at91_adc.c | |
| parent | staging: comedi: adv_pci1710: fix AI INSN_READ for non-zero channel (diff) | |
| download | linux-70dddeee8945a0e62525a278ae7b91778f82f765.tar.xz linux-70dddeee8945a0e62525a278ae7b91778f82f765.zip | |
iio: fix drivers that check buffer->scan_mask
If the in-kernel push interface is used we may have a different masks
on the device buffer and the kernel buffer and in this case the device
should generate data for the reunion of the buffers, which is
available at indio_dev->active_scan_mask.
Compiled tested only except for bmc150-accel which was tested at
runtime with the hardware.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/at91_adc.c')
| -rw-r--r-- | drivers/iio/adc/at91_adc.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index ff61ae55dd3f..8a0eb4a04fb5 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -544,7 +544,6 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state) { struct iio_dev *idev = iio_trigger_get_drvdata(trig); struct at91_adc_state *st = iio_priv(idev); - struct iio_buffer *buffer = idev->buffer; struct at91_adc_reg_desc *reg = st->registers; u32 status = at91_adc_readl(st, reg->trigger_register); int value; @@ -564,7 +563,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state) at91_adc_writel(st, reg->trigger_register, status | value); - for_each_set_bit(bit, buffer->scan_mask, + for_each_set_bit(bit, idev->active_scan_mask, st->num_channels) { struct iio_chan_spec const *chan = idev->channels + bit; at91_adc_writel(st, AT91_ADC_CHER, @@ -579,7 +578,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state) at91_adc_writel(st, reg->trigger_register, status & ~value); - for_each_set_bit(bit, buffer->scan_mask, + for_each_set_bit(bit, idev->active_scan_mask, st->num_channels) { struct iio_chan_spec const *chan = idev->channels + bit; at91_adc_writel(st, AT91_ADC_CHDR, |