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driver: sensor: adxl372: Bug fix for status2 reg

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This is a bug fix for adxl372_get_status function.
This function is used to get STATUS1, STATUS2, FIFO_ENTRIES2
and FIFO_ENTRIES1 registers (they are continuously present
in the memory in this order). User can choose if it wants
STATUS2 and/or FIFO registers by passing pointers where
to store received values. Bug was when user doesn't want
STATUS2 and want FIFO regs. In that case calculated length
would be 3 which will result in reading of STATUS1, STATUS2
and FIFO_ENTRIES2 regs and not expected STATUS1, FIFO_ENTRIES2
and FIFO_ENTRIES1.

Signed-off-by: Vladislav Pejic <vladislav.pejic@orioninc.com>
This commit is contained in:
Vladislav Pejic 2024-09-27 12:12:42 +02:00 • committed by Alberto Escolar
commit fe5bfc9eb2
1 changed files with 10 additions and 1 deletions
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11
drivers/sensor/adi/adxl372/adxl372.c
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@ -364,7 +364,16 @@ int adxl372_get_status(const struct device *dev,
}
if (fifo_entries) {
length += 2U;
if (status2) {
length += 2U;
} else {
/* Registers STATUS1, STATUS2, FIFO_ENTRIES2 and FIFO_ENTRIES1
* are one after the other. If user wants fifo_entries and
* not status2, to get the correct values, STATUS2 register
* also must be read but read value will be ignored.
*/
length += 3U;
}
}
ret = data->hw_tf->read_reg_multiple(dev, ADXL372_STATUS_1, buf, length);