[PATCH 3/3] iio: addac: ad74413r: correct comparator gpio getters mask usage

[Cosmin Tanislav <demonsingur@gmail.com>]

The value of the GPIOs is currently altered using offsets rather
than masks. Make use the BIT macro to turn the offsets into masks.

Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com>
---
 drivers/iio/addac/ad74413r.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c
index 3d089c0b6f7a..a69dee667441 100644
--- a/drivers/iio/addac/ad74413r.c
+++ b/drivers/iio/addac/ad74413r.c
@@ -134,7 +134,6 @@ struct ad74413r_state {
 #define AD74413R_CH_EN_MASK(x)		BIT(x)
 
 #define AD74413R_REG_DIN_COMP_OUT		0x25
-#define AD74413R_DIN_COMP_OUT_SHIFT_X(x)	x
 
 #define AD74413R_REG_ADC_RESULT_X(x)	(0x26 + (x))
 #define AD74413R_ADC_RESULT_MAX		GENMASK(15, 0)
@@ -316,7 +315,7 @@ static int ad74413r_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	if (ret)
 		return ret;
 
-	status &= AD74413R_DIN_COMP_OUT_SHIFT_X(real_offset);
+	status &= BIT(real_offset);
 
 	return status ? 1 : 0;
 }
@@ -334,11 +333,13 @@ static int ad74413r_gpio_get_multiple(struct gpio_chip *chip,
 	if (ret)
 		return ret;
 
+	bitmap_zero(bits, chip->ngpio);
+
 	for_each_set_bit(offset, mask, chip->ngpio) {
 		unsigned int real_offset = st->comp_gpio_offsets[offset];
 
 		if (val & BIT(real_offset))
-			*bits |= offset;
+			*bits |= BIT(offset);
 	}
 
 	return ret;
-- 
2.34.1