| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 05/66] iio: ti_am335x_adc: Fix: Use same step id at FIFOs both ends | Date | Tue, 15 Jul 2014 16:16:59 -0700 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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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
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