[PATCH 1/3] iio: adc: ti-ads112c14: add debugfs register access

[David Lechner (TI)]

Add debugfs register access to the ads112c14 driver. This is a complex
chip and being able to poke registers is useful for debugging and
diagnostic/calibration purposes.

Signed-off-by: David Lechner (TI) <dlechner@xxxxxxxxxxxx>
---
 drivers/iio/adc/ti-ads112c14.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/iio/adc/ti-ads112c14.c b/drivers/iio/adc/ti-ads112c14.c
index fef3a9c37ced..28824c81908e 100644
--- a/drivers/iio/adc/ti-ads112c14.c
+++ b/drivers/iio/adc/ti-ads112c14.c
@@ -690,6 +690,19 @@ static int ads112c14_write_raw_get_fmt(struct iio_dev *indio_dev,
 	}
 }
 
+static int ads112c14_debugfs_reg_access(struct iio_dev *indio_dev,
+					unsigned int reg,
+					unsigned int writeval,
+					unsigned int *readval)
+{
+	struct ads112c14_data *data = iio_priv(indio_dev);
+
+	if (readval)
+		return regmap_read(data->regmap, reg, readval);
+
+	return regmap_write(data->regmap, reg, writeval);
+}
+
 static int ads112c14_read_label(struct iio_dev *indio_dev,
 				struct iio_chan_spec const *chan, char *label)
 {
@@ -736,6 +749,7 @@ static const struct iio_info ads112c14_info = {
 	.read_avail = ads112c14_read_avail,
 	.write_raw = ads112c14_write_raw,
 	.write_raw_get_fmt = ads112c14_write_raw_get_fmt,
+	.debugfs_reg_access = ads112c14_debugfs_reg_access,
 	.read_label = ads112c14_read_label,
 };
 

-- 
2.43.0