From: Jan Kardell Date: Thu, 6 Nov 2014 22:18:00 +0000 (+0000) Subject: iio: ti_am335x_adc: Fix: Use same step id at FIFOs both ends X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=baa3c65298c089a9014b4e523a14ec2885cca1bc;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git iio: ti_am335x_adc: Fix: Use same step id at FIFOs both ends 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 Tested-by: Zubair Lutfullah Signed-off-by: Jonathan Cameron Cc: stable@vger.kernel.org --- diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index a4db3026bec6..d5dc4c6ce86c 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -374,7 +374,7 @@ static int tiadc_read_raw(struct iio_dev *indio_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