iss->media_dev.link_notify = iss_pipeline_link_notify;
        ret = media_device_register(&iss->media_dev);
        if (ret < 0) {
-               printk(KERN_ERR "%s: Media device registration failed (%d)\n",
+               dev_err(iss->dev, "%s: Media device registration failed (%d)\n",
                        __func__, ret);
                return ret;
        }
        iss->v4l2_dev.mdev = &iss->media_dev;
        ret = v4l2_device_register(iss->dev, &iss->v4l2_dev);
        if (ret < 0) {
-               printk(KERN_ERR "%s: V4L2 device registration failed (%d)\n",
+               dev_err(iss->dev, "%s: V4L2 device registration failed (%d)\n",
                        __func__, ret);
                goto done;
        }
                        break;
 
                default:
-                       printk(KERN_ERR "%s: invalid interface type %u\n",
-                              __func__, subdevs->interface);
+                       dev_err(iss->dev, "%s: invalid interface type %u\n",
+                               __func__, subdevs->interface);
                        ret = -EINVAL;
                        goto done;
                }
 
        } while (soft_reset_retries < 5);
 
        if (soft_reset_retries == 5) {
-               printk(KERN_ERR "CSI2: Soft reset try count exceeded!\n");
+               dev_err(csi2->iss->dev,
+                       "CSI2: Soft reset try count exceeded!\n");
                return -EBUSY;
        }
 
        } while (--i > 0);
 
        if (i == 0) {
-               printk(KERN_ERR
-                      "CSI2: Reset for CSI2_96M_FCLK domain Failed!\n");
+               dev_err(csi2->iss->dev,
+                       "CSI2: Reset for CSI2_96M_FCLK domain Failed!\n");
                return -EBUSY;
        }
 
 
        } while ((reg != power >> 2) && (retry_count < 250));
 
        if (retry_count == 250) {
-               printk(KERN_ERR "CSI2 CIO set power failed!\n");
+               dev_err(phy->iss->dev, "CSI2 CIO set power failed!\n");
                return -EBUSY;
        }
 
 
 
        ret = video_register_device(&video->video, VFL_TYPE_GRABBER, -1);
        if (ret < 0)
-               printk(KERN_ERR "%s: could not register video device (%d)\n",
+               dev_err(video->iss->dev,
+                       "%s: could not register video device (%d)\n",
                        __func__, ret);
 
        return ret;