P9
var3 = var2 + ((s64)calib->P9 << 16);
calib->P9 = get_unaligned_le16(&data->bmp380_cal_buf[BMP380_P9]);
calib->P9 = le16_to_cpu(data->bmp280_cal_buf[P9]);
var1 = (((s64)calib->P9) * (p >> 13) * (p >> 13)) >> 25;
s16 P9;
s16 P9;