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iio: magnetometer: rm3100: Use get_unaligned_be24()

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This makes the driver code slightly easier to read.

Cc: Song Qiang <songqiang1304521@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Andy Shevchenko 2020-04-21 03:31:30 +03:00 committed by Jonathan Cameron
parent d2fa63d2d1
commit dfe3da0b28
1 changed files with 3 additions and 2 deletions
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5
drivers/iio/magnetometer/rm3100-core.c
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@ -22,6 +22,8 @@
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/trigger_consumer.h>
#include <asm/unaligned.h>
#include "rm3100.h"
/* Cycle Count Registers. */
@ -223,8 +225,7 @@ static int rm3100_read_mag(struct rm3100_data *data, int idx, int *val)
goto unlock_return;
mutex_unlock(&data->lock);
*val = sign_extend32((buffer[0] << 16) | (buffer[1] << 8) | buffer[2],
23);
*val = sign_extend32(get_unaligned_be24(&buffer[0]), 23);
return IIO_VAL_INT;