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iio: adc: mcp3422: rewrite mask macros with help of bits.h APIs

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Rewrite MCP3422_CHANNEL_MASK, MCP3422_SRATE_MASK, MCP3422_PGA_MASK
and MCP3422_CONT_SAMPLING using GENMASK() and BIT() macros from
bits.h.

The other macros MCP3422_SRATE_{240, 60, 15, 3} were not changed
because they are also used as array indices.

Signed-off-by: Marcelo Machado Lage <marcelomlage@usp.br>
Co-developed-by: Vinicius Lira <vinilira@usp.br>
Signed-off-by: Vinicius Lira <vinilira@usp.br>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Marcelo Machado Lage 2026-04-29 19:44:00 -03:00 committed by Jonathan Cameron
parent 5a6249110e
commit 0c794147f2
1 changed files with 6 additions and 5 deletions
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11
drivers/iio/adc/mcp3422.c
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@ -13,6 +13,7 @@
* voltage unit is nV.
*/
#include <linux/bits.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
@ -24,10 +25,10 @@
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
/* Masks */
#define MCP3422_CHANNEL_MASK 0x60
#define MCP3422_PGA_MASK 0x03
#define MCP3422_SRATE_MASK 0x0C
#define MCP3422_CHANNEL_MASK GENMASK(6, 5)
#define MCP3422_SRATE_MASK GENMASK(3, 2)
#define MCP3422_PGA_MASK GENMASK(1, 0)
#define MCP3422_SRATE_240 0x0
#define MCP3422_SRATE_60 0x1
#define MCP3422_SRATE_15 0x2
@ -36,7 +37,7 @@
#define MCP3422_PGA_2 1
#define MCP3422_PGA_4 2
#define MCP3422_PGA_8 3
#define MCP3422_CONT_SAMPLING 0x10
#define MCP3422_CONT_SAMPLING BIT(4)
#define MCP3422_CHANNEL(config) (((config) & MCP3422_CHANNEL_MASK) >> 5)
#define MCP3422_PGA(config) ((config) & MCP3422_PGA_MASK)