Support for register access was added for spi devices.
Signed-off-by: Beniamin Bia <beniamin.bia@xxxxxxxxxx>
Acked-by: Jonathan Cameron <jic23@xxxxxxxxxx>
---
Changes in v2:
-nothing changed
drivers/iio/adc/ad7606.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c
index 8e09ad4bb72e..0eccfc873802 100644
--- a/drivers/iio/adc/ad7606.c
+++ b/drivers/iio/adc/ad7606.c
@@ -134,6 +134,30 @@ static int ad7606_spi_write_mask(struct ad7606_state *st,
return ad7606_spi_reg_write(st, addr, readval);
}
+static int ad7606_reg_access(struct iio_dev *indio_dev,
+ unsigned int reg,
+ unsigned int writeval,
+ unsigned int *readval)
+{
+ struct ad7606_state *st = iio_priv(indio_dev);
+ int ret;
+
+ mutex_lock(&st->lock);
+ if (readval) {
+ ret = ad7606_spi_reg_read(st, reg);
+ if (ret < 0)
+ goto err_unlock;
+ *readval = ret;
+ ret = 0;
+ } else {
+ ret = ad7606_spi_reg_write(st, reg, writeval);
+ }
+err_unlock:
+ mutex_unlock(&st->lock);
+
+ return ret;
+}
+
static int ad7606_read_samples(struct ad7606_state *st)
{
unsigned int num = st->chip_info->num_channels;
@@ -645,6 +669,7 @@ static const struct iio_info ad7606_info_no_os_or_range = {
static const struct iio_info ad7606_info_os_and_range = {
.read_raw = &ad7606_read_raw,
.write_raw = &ad7606_write_raw,
+ .debugfs_reg_access = &ad7606_reg_access,
.attrs = &ad7606_attribute_group_os_and_range,
.validate_trigger = &ad7606_validate_trigger,
};
--
2.17.1
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