DM36x: add new matrixs support

Hello!
I work with DM368, DVSDK_4_02, linux-2.6.32, GStreamer and CMOS OmniVision OV2715.
I write driver for OV2715 and add it descrition in vpfe_sub_devs[] (file arch/arm/mach-davinci/board-dm365-evm.c), after loading modules I see what vpfe register matrix as subdevice - v4l2 sub device ov2715 registered. But after running Gstreamer pipeline I get error "Failed to create capture handle".
I add debug output in vpfe_capture.c and see what my matrix registered as 4 v4l2 subdev, but ticapturesrc set in driver 3 subdev:

v4l2Input.type = V4L2_INPUT_TYPE_CAMERA;
    v4l2Input.index = 0;
    do {
        if (ioctl(fd, VIDIOC_ENUMINPUT, &v4l2Input) != 0) {
            Dmai_err2("%s input not found (%s)\n",
                      captureInputString[attrs->videoInput], strerror(errno));
            return Dmai_EFAIL;
        }
        v4l2Input.index++;
    } while (strcmp((Char *) v4l2Input.name,
                        captureInputString[attrs->videoInput]) != 0);
    input = --v4l2Input.index;

    Dmai_dbg1("%s input selected\n", v4l2Input.name);

    if (ioctl(fd, VIDIOC_S_INPUT, &input) == -1) {
        Dmai_err2("Failed to set video input to %d (%s)\n",
            input, strerror(errno));
        return Dmai_EFAIL;
    }

    if (ioctl(fd, VIDIOC_G_INPUT, &queryInput) == -1) {
        Dmai_err0("Failed to retrieve video input setting\n");
        return Dmai_EFAIL;
    }

    if (input != queryInput) {
        Dmai_dbg2("Attempted to set video input to %d, but it still has a"
                  "setting of %d\n", input, queryInput);
        return Dmai_EFAIL;
    }

As result driver found what 3 subdev is not active and return error.
Now I solve problem very simple, I think this is a dirty hack, move my matrix description above in vpfe_sub_devs[]. After this driver found my matrix as actived, but how can solve this problem if I need supported few matrix for device? Now I see only one way - rewrite vpfe_get_subdev_input_index, and may be vpfe_s_input, function in driver/char/vpfe_capture.c. Or may be there is other way?

Thank you and excuse me my bad enfglish.