- /*
- * This controller supports RDDM, so we need to manually clear
- * BHIE RX registers since POR values are undefined.
- */
+ if (bhi_off >= mhi_cntrl->reg_len) {
+ dev_err(dev, "BHI offset: 0x%x is out of range: 0x%zx\n",
+ bhi_off, mhi_cntrl->reg_len);
+ ret = -EINVAL;
+ goto error_reg_offset;
+ }
+ mhi_cntrl->bhi = mhi_cntrl->regs + bhi_off;
+
+ if (mhi_cntrl->fbc_download || mhi_cntrl->rddm_size) {