[PATCH] iio: ti_am335x_adc: Fix prerequisite for stepid patch

[Jan Kardell]

Kernel series 3.11 and 3.12 does not initialize scan_index in the
iio_chan_spec structure as 3.13 and newer does. This is necessary
for the stepid patch to work, otherwise it even breaks the cases
that worked before the stepid patch.

Unfortunately the stepid patch seems to already be in 3.12.25,
must have missed that inclusion.

Signed-off-by: Jan Kardell <jan.kardell@xxxxxxxxxx>
---
 drivers/iio/adc/ti_am335x_adc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 3ceac3e..6c56418 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -120,6 +120,7 @@ static int tiadc_channel_init(struct iio_dev *indio_dev, int channels)
 		chan->channel = adc_dev->channel_line[i];
 		chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW);
 		chan->datasheet_name = chan_name_ain[chan->channel];
+		chan->scan_index = i;
 		chan->scan_type.sign = 'u';
 		chan->scan_type.realbits = 12;
 		chan->scan_type.storagebits = 32;
-- 
1.8.4.5

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