3.16.7-ckt9 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Stefan Wahren <stefan.wahren@xxxxxxxx>
commit 03305e535cd5cdc1079b32909bf4b2dd67d46f7f upstream.
Since commit c8231a9af8147f8a ("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@xxxxxxxx>
Acked-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Marek Vasut <marex@xxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
drivers/staging/iio/adc/mxs-lradc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 4907efaf5e3d..37a1192f1637 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -1402,6 +1402,13 @@ 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 */
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