[PATCH v6 18/26] iio: dac: Convert to common field_prep() helper

Geert Uytterhoeven
2025-11-06T13:37:39Z

Drop the driver-specific field_prep() macro, in favor of the globally
available variant from <linux/bitfield.h>.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
v6:
- No changes,

v5:
- Extracted from "bitfield: Add non-constant field_{prep,get}()
helpers".
---
drivers/iio/dac/ad3530r.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/drivers/iio/dac/ad3530r.c b/drivers/iio/dac/ad3530r.c
index 5684d11137f29948..b97b46090d808ee7 100644
--- a/drivers/iio/dac/ad3530r.c
+++ b/drivers/iio/dac/ad3530r.c
@@ -53,10 +53,6 @@
#define AD3530R_MAX_CHANNELS 8
#define AD3531R_MAX_CHANNELS 4

-/* Non-constant mask variant of FIELD_PREP() */
-#undef field_prep
-#define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask))
-
enum ad3530r_mode {
AD3530R_NORMAL_OP,
AD3530R_POWERDOWN_1K,
--
2.43.0