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iio: pressure: zpa2326: Use get_unaligned_le24() 

This makes the driver code slightly easier to read.

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 03:31:33 +03:00 committed by Jonathan Cameron
parent 00d5e7b2fb
commit e8ee40e775
1 changed files with 4 additions and 5 deletions
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9
drivers/iio/pressure/zpa2326.c
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@ -64,6 +64,7 @@
#include <linux/iio/trigger.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
#include <asm/unaligned.h>
#include "zpa2326.h"
/* 200 ms should be enough for the longest conversion time in one-shot mode. */
@ -1005,22 +1006,20 @@ static int zpa2326_fetch_raw_sample(const struct iio_dev *indio_dev,
struct regmap *regs = ((struct zpa2326_private *)
iio_priv(indio_dev))->regmap;
int err;
u8 v[3];
switch (type) {
case IIO_PRESSURE:
zpa2326_dbg(indio_dev, "fetching raw pressure sample");
err = regmap_bulk_read(regs, ZPA2326_PRESS_OUT_XL_REG, value,
3);
err = regmap_bulk_read(regs, ZPA2326_PRESS_OUT_XL_REG, v, sizeof(v));
if (err) {
zpa2326_warn(indio_dev, "failed to fetch pressure (%d)",
err);
return err;
}
/* Pressure is a 24 bits wide little-endian unsigned int. */
*value = (((u8 *)value)[2] << 16) | (((u8 *)value)[1] << 8) |
((u8 *)value)[0];
*value = get_unaligned_le24(&v[0]);
return IIO_VAL_INT;