linux-kernel - [PATCH v5 17/23] iio: mlx90614: Convert to common field

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Message-ID: <8ea8d9d6c33d9589e8761f6000639546f1bd5148.1761588465.git.geert+renesas@glider.be>
Date: Mon, 27 Oct 2025 19:41:51 +0100
From: Geert Uytterhoeven <geert+renesas@...der.be>
To: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
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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,
	linux-edac@...r.kernel.org,
	qat-linux@...el.com,
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	linux-aspeed@...ts.ozlabs.org,
	linux-iio@...r.kernel.org,
	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 17/23] iio: mlx90614: Convert to common field_{get,prep}() helpers

Drop the driver-specific field_get() and field_prep() macros, in favor
of the globally available variants from <linux/bitfield.h>.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Acked-by: Crt Mori <cmo@...exis.com>
---
v5:
  - Extracted from "bitfield: Add non-constant field_{prep,get}()
    helpers".
---
 drivers/iio/temperature/mlx90614.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c
index de5615fdb396aa3c..1ad21b73e1b44cb0 100644
--- a/drivers/iio/temperature/mlx90614.c
+++ b/drivers/iio/temperature/mlx90614.c
@@ -22,6 +22,7 @@
  * the "wakeup" GPIO is not given, power management will be disabled.
  */
 
+#include <linux/bitfield.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/gpio/consumer.h>
@@ -68,12 +69,6 @@
 #define MLX90614_CONST_SCALE 20 /* Scale in milliKelvin (0.02 * 1000) */
 #define MLX90614_CONST_FIR 0x7 /* Fixed value for FIR part of low pass filter */
 
-/* Non-constant mask variant of FIELD_GET() and FIELD_PREP() */
-#undef field_get
-#define field_get(_mask, _reg)	(((_reg) & (_mask)) >> (ffs(_mask) - 1))
-#undef field_prep
-#define field_prep(_mask, _val)	(((_val) << (ffs(_mask) - 1)) & (_mask))
-
 struct mlx_chip_info {
 	/* EEPROM offsets with 16-bit data, MSB first */
 	/* emissivity correction coefficient */
-- 
2.43.0