These bits are meant to be reused for triggered buffers setup.
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
---
drivers/iio/adc/max1027.c | 26 ++++++++++++++++++--------
1 file changed, 18 insertions(+), 8 deletions(-)
diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
index 4a78c9cbc339..223c9e4abd86 100644
--- a/drivers/iio/adc/max1027.c
+++ b/drivers/iio/adc/max1027.c
@@ -236,6 +236,22 @@ struct max1027_state {
u8 reg ____cacheline_aligned;
};
+/* Scan from 0 to the highest requested channel */
+static int max1027_configure_chans_to_scan(struct iio_dev *indio_dev)
+{
+ struct max1027_state *st = iio_priv(indio_dev);
+ int ret;
+
+ /* The temperature could be avoided but it simplifies a bit the logic */
+ st->reg = MAX1027_CONV_REG | MAX1027_SCAN_0_N | MAX1027_TEMP;
+ st->reg |= MAX1027_CHAN(fls(*indio_dev->active_scan_mask) - 2);
+ ret = spi_write(st->spi, &st->reg, 1);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
static int max1027_configure_trigger(struct iio_dev *indio_dev)
{
struct max1027_state *st = iio_priv(indio_dev);
@@ -391,14 +407,8 @@ static int max1027_set_cnvst_trigger_state(struct iio_trigger *trig, bool state)
if (ret)
return ret;
- /*
- * Scan from 0 to the highest requested channel. The temperature
- * could be avoided but it simplifies a bit the logic.
- */
- st->reg = MAX1027_CONV_REG | MAX1027_SCAN_0_N | MAX1027_TEMP;
- st->reg |= MAX1027_CHAN(fls(*indio_dev->active_scan_mask) - 2);
- ret = spi_write(st->spi, &st->reg, 1);
- if (ret < 0)
+ ret = max1027_configure_chans_to_scan(indio_dev);
+ if (ret)
return ret;
} else {
/*
--
2.27.0
