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iio: mxs-lradc: fix iio channel map regression

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Since commit c8231a9af8 ("iio: mxs-lradc: compute temperature
from channel 8 and 9") with the removal of adc channel 9 there is
no 1-1 mapping in the channel spec.

All hwmon channel values above 9 are accessible via there index minus
one. So add a hidden iio channel 9 to fix this issue.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Cc: Stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Stefan Wahren 2015-01-03 20:34:12 +00:00 committed by Jonathan Cameron
parent 19e353f2b3
commit 03305e535c
1 changed files with 7 additions and 0 deletions
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7
drivers/staging/iio/adc/mxs-lradc.c
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@ -1397,6 +1397,13 @@ static const struct iio_chan_spec mxs_lradc_chan_spec[] = {
.channel = 8,
.scan_type = {.sign = 'u', .realbits = 18, .storagebits = 32,},
},
/* Hidden channel to keep indexes */
{
.type = IIO_TEMP,
.indexed = 1,
.scan_index = -1,
.channel = 9,
},
MXS_ADC_CHAN(10, IIO_VOLTAGE), /* VDDIO */
MXS_ADC_CHAN(11, IIO_VOLTAGE), /* VTH */
MXS_ADC_CHAN(12, IIO_VOLTAGE), /* VDDA */