staging:iio: Add support for multiple buffers

Route all buffer writes through the demux.
Addition or removal of a buffer results in tear down and
setup of all the buffers for a given device.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Tested-by: srinivas pandruvada <srinivas.pandruvada@intel.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 2e2c9a80aa37..03b85940f4ba 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -65,7 +65,6 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
         struct iio_poll_func *pf = p;
         struct iio_dev *idev = pf->indio_dev;
         struct at91_adc_state *st = iio_priv(idev);
-        struct iio_buffer *buffer = idev->buffer;
         int i, j = 0;
 
         for (i = 0; i < idev->masklength; i++) {
@@ -81,7 +80,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
                 *timestamp = pf->timestamp;
         }
 
-        iio_push_to_buffer(buffer, st->buffer);
+        iio_push_to_buffers(indio_dev, (u8 *)st->buffer);
 
         iio_trigger_notify_done(idev->trig);