| From baa3c65298c089a9014b4e523a14ec2885cca1bc Mon Sep 17 00:00:00 2001 |
| From: Jan Kardell <jan.kardell@telliq.com> |
| Date: Thu, 6 Nov 2014 22:18:00 +0000 |
| Subject: iio: ti_am335x_adc: Fix: Use same step id at FIFOs both ends |
| |
| From: Jan Kardell <jan.kardell@telliq.com> |
| |
| commit baa3c65298c089a9014b4e523a14ec2885cca1bc upstream. |
| |
| Since AI lines could be selected at will (linux-3.11) the sending |
| and receiving ends of the FIFO does not agree about what step is used |
| for a line. It only works if the last lines are used, like 5,6,7, |
| and fails if ie 2,4,6 is selected in DT. |
| |
| Signed-off-by: Jan Kardell <jan.kardell@telliq.com> |
| Tested-by: Zubair Lutfullah <zubair.lutfullah@gmail.com> |
| Signed-off-by: Jonathan Cameron <jic23@kernel.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| drivers/iio/adc/ti_am335x_adc.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/drivers/iio/adc/ti_am335x_adc.c |
| +++ b/drivers/iio/adc/ti_am335x_adc.c |
| @@ -375,7 +375,7 @@ static int tiadc_read_raw(struct iio_dev |
| return -EAGAIN; |
| } |
| } |
| - map_val = chan->channel + TOTAL_CHANNELS; |
| + map_val = adc_dev->channel_step[chan->scan_index]; |
| |
| /* |
| * We check the complete FIFO. We programmed just one entry but in case |
