drivers: bmp581: change sensor_channel units to match spec

The bmp581 driver currently returns pressure in pascals, when
the sensor_channel enum specifies kilopascals.

Signed-off-by: Maxmillion McLaughlin <max@sorcerer.earth>

Author: maxmclau

drivers/sensor/bosch/bmp581/bmp581.c

@@ -376,14 +376,14 @@ static int bmp581_sample_fetch(const struct device *dev, enum sensor_channel cha
 		drv->last_sample.temperature.val2 = (data[1] << 8 | data[0]) * 10;
 
 		if (drv->osr_odr_press_config.press_en == BMP5_ENABLE) {
-			uint32_t raw_pressure = (uint32_t)((uint32_t)(data[5] << 16) |
-							   (uint16_t)(data[4] << 8) | data[3]);
 			/* convert raw sensor data to sensor_value. Shift the decimal part by
 			 * 4 decimal places to compensate for the conversion in
 			 * sensor_value_to_double()
 			 */
-			drv->last_sample.pressure.val1 = raw_pressure >> 6;
-			drv->last_sample.pressure.val2 = (raw_pressure & BIT_MASK(6)) * 10000;
+			uint32_t raw_pressure = (uint32_t)((uint32_t)(data[5] << 16) |
+							   (uint16_t)(data[4] << 8) | data[3]) >> 6;
+			drv->last_sample.pressure.val1 = raw_pressure / 1000;
+			drv->last_sample.pressure.val2 = (raw_pressure % 1000) * 1000;
 		} else {
 			drv->last_sample.pressure.val1 = 0;
 			drv->last_sample.pressure.val2 = 0;
@@ -404,7 +404,7 @@ static int bmp581_channel_get(const struct device *dev, enum sensor_channel chan
 
 	switch (chan) {
 	case SENSOR_CHAN_PRESS:
-		/* returns pressure in Pa */
+		/* returns pressure in kPa */
 		*val = drv->last_sample.pressure;
 		return BMP5_OK;
 	case SENSOR_CHAN_AMBIENT_TEMP: