linux-kernel - [PATCH v5 16/23] iio: dac: Convert to common field

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Message-ID: <c35442070b3484d6312e4c4ce197b00713d08656.1761588465.git.geert+renesas@glider.be>
Date: Mon, 27 Oct 2025 19:41:50 +0100
From: Geert Uytterhoeven <geert+renesas@...der.be>
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Cc: linux-clk@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-renesas-soc@...r.kernel.org,
	linux-crypto@...r.kernel.org,
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	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH v5 16/23] iio: dac: Convert to common field_prep() helper

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@...der.be>
Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
---
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