[PATCH 1/2] iio: mtk-auxadc: add support IIO_CHAN_INFO_RAW case

From: Hui Liu
Date: Wed Aug 11 2021 - 22:24:24 EST


Add support IIO_CHAN_INFO_RAW case.

Signed-off-by: Hui Liu <hui.liu@xxxxxxxxxxxx>
---
drivers/iio/adc/mt6577_auxadc.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c
index 79c1dd68b909..e995d43287b2 100644
--- a/drivers/iio/adc/mt6577_auxadc.c
+++ b/drivers/iio/adc/mt6577_auxadc.c
@@ -60,7 +60,8 @@ static const struct mtk_auxadc_compatible mt6765_compat = {
.type = IIO_VOLTAGE, \
.indexed = 1, \
.channel = (idx), \
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+ BIT(IIO_CHAN_INFO_PROCESSED), \
}

static const struct iio_chan_spec mt6577_auxadc_iio_channels[] = {
@@ -181,6 +182,19 @@ static int mt6577_auxadc_read_raw(struct iio_dev *indio_dev,
struct mt6577_auxadc_device *adc_dev = iio_priv(indio_dev);

switch (info) {
+ case IIO_CHAN_INFO_RAW:
+ *val = mt6577_auxadc_read(indio_dev, chan);
+ if (*val < 0) {
+ dev_notice(indio_dev->dev.parent,
+ "failed to sample data on channel[%d]\n",
+ chan->channel);
+ return *val;
+ }
+ if (adc_dev->dev_comp->sample_data_cali)
+ *val = mt_auxadc_get_cali_data(*val, true);
+
+ return IIO_VAL_INT;
+
case IIO_CHAN_INFO_PROCESSED:
*val = mt6577_auxadc_read(indio_dev, chan);
if (*val < 0) {
--
2.18.0