iio: adc: ad7124: Remove input number limitation

The driver limits the user to use only 4/8 differential inputs, but this
device has the option to use pseudo-differential channels. This will
increase the number of channels to be equal with the number of inputs so 8
channels for ad7124-4 and 16 for ad7124-8.

This patch removes the check between channel nodes and num_inputs value.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c
index 659ef37..810234d 100644 (file)
--- a/drivers/iio/adc/ad7124.c
+++ b/drivers/iio/adc/ad7124.c
@@ -462,13 +462,6 @@ static int ad7124_of_parse_channel_config(struct iio_dev *indio_dev,
                if (ret)
                        goto err;
 
-               if (ain[0] >= st->chip_info->num_inputs ||
-                   ain[1] >= st->chip_info->num_inputs) {
-                       dev_err(indio_dev->dev.parent,
-                               "Input pin number out of range.\n");
-                       ret = -EINVAL;
-                       goto err;
-               }
                st->channel_config[channel].ain = AD7124_CHANNEL_AINP(ain[0]) |
                                                  AD7124_CHANNEL_AINM(ain[1]);
                st->channel_config[channel].bipolar =