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iio: bma220: Use scan_type when processing raw data 

Use channel definition as root of trust and replace constant
when reading elements directly using the raw sysfs attributes.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20211104082413.3681212-2-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Gwendal Grignou 2021-11-04 01:24:01 -07:00 committed by Jonathan Cameron
parent 0d376dc9fe
commit f905772e8b
1 changed files with 3 additions and 3 deletions
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6
drivers/iio/accel/bma220_spi.c
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@ -27,7 +27,6 @@
#define BMA220_CHIP_ID 0xDD
#define BMA220_READ_MASK BIT(7)
#define BMA220_RANGE_MASK GENMASK(1, 0)
#define BMA220_DATA_SHIFT 2
#define BMA220_SUSPEND_SLEEP 0xFF
#define BMA220_SUSPEND_WAKE 0x00
@ -45,7 +44,7 @@
.sign = 's', \
.realbits = 6, \
.storagebits = 8, \
.shift = BMA220_DATA_SHIFT, \
.shift = 2, \
.endianness = IIO_CPU, \
}, \
}
@ -125,7 +124,8 @@ static int bma220_read_raw(struct iio_dev *indio_dev,
ret = bma220_read_reg(data->spi_device, chan->address);
if (ret < 0)
return -EINVAL;
*val = sign_extend32(ret >> BMA220_DATA_SHIFT, 5);
*val = sign_extend32(ret >> chan->scan_type.shift,
chan->scan_type.realbits - 1);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
ret = bma220_read_reg(data->spi_device, BMA220_REG_RANGE);