dragos@ubuntu:~/VEYE_AR0234_Drivers/nvidia_jetson_veye_bsp/mv_tools_jetson/i2c_tools$ ./mv_mipi_i2c_new.sh -r version -b 10
version is C 01.15 and L 00.00

dragos@ubuntu:~/VEYE_AR0234_Drivers/nvidia_jetson_veye_bsp/mv_tools_jetson/i2c_tools$ uname -r
5.10.216-tegra

dragos@ubuntu:~/VEYE_AR0234_Drivers/nvidia_jetson_veye_bsp/mv_tools_jetson/i2c_tools$ head -n 1 /etc/nv_tegra_release
# R35 (release), REVISION: 6.0, GCID: 37391689, BOARD: t186ref, EABI: aarch64, DATE: Wed Aug 28 09:12:27 UTC 2024

What I have done so far:
Looking on this topic RAW-MIPI-AR0234M 在NX平台下，2lane和4 lanes都无法采图 I've started by decompiling the DTB file (tegra194-p3668-0000-p3509-0000.dtb) provided in:

nvidia_jetson_veye_bsp/dtbs/Xavier-NX/JetPack_5.1.4_Linux_JETSON_XAVIER_NX_TARGETS/dts dtb/RAW-MIPI-AR0234M

using the command:

dtc -I dtb -O dts -o decompiled.dts tegra194-p3668-0000-p3509-0000.dtb

The changes I've made in the DTS file:

tegra-capture-vi {
  ports {
    port@0 {
      endpoint {
        bus-width = <0x02>; -> <0x04>
      };
    };
    port@1 {
      endpoint {
        bus-width = <0x02>; -> <0x04>
      };
    };
  };
};
host1x@13e00000 {
  nvcsi@15a00000 {
    channel@0 {
      ports {
        port@0 {
          endpoint@0 {
            bus-width = <0x02>; -> <0x04>
          };
        };
      };
    };
    channel@1 {
      ports {
        port@0 {
          endpoint@2 {
            bus-width = <0x02>; -> <0x04>
          };
        };
      };
    };
  };
};
cam_i2cmux {
  i2c@0 {
    rbpcv2_mvcam_a@3b {
      ports {
        port@0 {
          endpoint {
            bus-width = <0x02>; -> <0x04>
          };
        };
      };
    };
  };
  i2c@1 {
    rbpcv2_mvcam_c@3b {
      ports {
        port@0 {
          endpoint {
            bus-width = <0x02>; -> <0x04>
          };
        };
      };
    };
  };
};
tegra-camera-platform {
  num_csi_lanes = <0x04>; -> <0x08>
};

and then I've compiled back the DTS file using:

dtc -I dts -O dtb -o tegra194-p3668-0000-p3509-0000-4lanes.dtb decompiled.dts

and I moved the modified DTB file to /boot/veyecam and after that I modified the extilinux.conf file
accordingly.
After reboot

dragos@ubuntu:~$ sudo dmesg | grep i2c
[    2.744386] i2c /dev entries driver
[    2.747600] tegra-i2c 3160000.i2c: Adding to iommu group 2
[    2.753249] tegra-i2c c240000.i2c: Adding to iommu group 2
[    2.759024] tegra-i2c 3180000.i2c: Adding to iommu group 2
[    2.764166] tegra-i2c 3190000.i2c: Adding to iommu group 2
[    2.769451] tegra-i2c 31b0000.i2c: Adding to iommu group 2
[    2.775053] tegra-i2c 31c0000.i2c: Adding to iommu group 2
[    2.780140] tegra-i2c c250000.i2c: Adding to iommu group 2
[    6.516596] tegra-i2c 31e0000.i2c: Adding to iommu group 2
[    6.523844] i2c i2c-2: Added multiplexed i2c bus 9
[    6.525575] i2c i2c-2: Added multiplexed i2c bus 10
[    6.525855] i2c-mux-gpio cam_i2cmux: 2 port mux on 3180000.i2c adapter
dragos@ubuntu:~$ sudo dmesg | grep mvcam
[   16.050995] veye_mvcam: loading out-of-tree module taints kernel.
[   16.052512] mvcam 9-003b: veye mv series camera driver version: 01.01.06
[   16.558998] veye_mvcam: mvcam_read: Reading register 0x04 failed
[   16.559337] mvcam 9-003b: failed to read chip id
[   16.559537] mvcam 9-003b: mvcam_identify_module failed.
[   16.560192] mvcam 10-003b: veye mv series camera driver version: 01.01.06
[   17.073462] mvcam 10-003b: camera is: RAW_MIPI_AR0234M
[   17.073874] mvcam 10-003b: firmware version: 0x1150000
[   17.089941] tegra-camrtc-capture-vi tegra-capture-vi: subdev mvcam 10-003b bound

dragos@ubuntu:~/VEYE_AR0234_Drivers/nvidia_jetson_veye_bsp/mv_tools_jetson/i2c_tools$ ./mv_mipi_i2c_new.sh -w lanenum 4
-b 10
w lane number is 4
dragos@ubuntu:~/VEYE_AR0234_Drivers/nvidia_jetson_veye_bsp/mv_tools_jetson/i2c_tools$ ./mv_mipi_i2c_new.sh -r lanenum -b
 10
r lane number is 4
dragos@ubuntu:~/VEYE_AR0234_Drivers/nvidia_jetson_veye_bsp/mv_tools_jetson/i2c_tools$ ./mv_mipi_i2c_new.sh -r maxfps -b 10
r maxfps @ current setting is 120.93 fps
dragos@ubuntu:~/VEYE_AR0234_Drivers/nvidia_jetson_veye_bsp/mv_tools_jetson/i2c_tools$ ./mv_mipi_i2c_new.sh -w paramsave -b 10
all param saved to flash
dragos@ubuntu:~/VEYE_AR0234_Drivers/nvidia_jetson_veye_bsp/mv_tools_jetson/i2c_tools$ ./mv_mipi_i2c_new.sh -w reboot -b 10
system reboot!

After opening qv4l2:

[  318.004980] mvcam 10-003b: csi2_try format
[  329.616728] mvcam 10-003b: csi2_try format
[  329.616772] mvcam 10-003b: csi2_try format
[  329.616784] mvcam 10-003b: mvcam_csi2_get_fmt_idx_by_code success
[  329.700934] mvcam 10-003b: camera_common_mclk_enable: no device power rail
[  329.701173] mvcam 10-003b: camera_common_s_power: failed to enable mclk
[  332.763065] tegra-camrtc-capture-vi tegra-capture-vi: uncorr_err: request timed out after 2500 ms
[  332.763380] tegra-camrtc-capture-vi tegra-capture-vi: err_rec: attempting to reset the capture channel
[  332.763671] (NULL device *): vi_capture_control_message: NULL VI channel received
[  332.763991] t194-nvcsi 13e10000.host1x:nvcsi@15a00000: csi5_stream_close: Error in closing stream_id=2, csi_port=2
[  332.764210] (NULL device *): vi_capture_control_message: NULL VI channel received
[  332.764788] tegra-camrtc-capture-vi tegra-capture-vi: err_rec: successfully reset the capture channel
[  332.810983] [RCE] ERROR: camera-ip/vi5/vi5.c:3893 [vi5_update_channel_match_data] "match configuration is already in use by by channel 35 cannot set channel match configuration"
[  332.810996] [RCE] ERROR: services/capture/capture-scheduler.c:3024 [capture_scheduler_thread] "Error processing event 0x100003"
[  335.322272] tegra-camrtc-capture-vi tegra-capture-vi: uncorr_err: request timed out after 2500 ms
[  335.322565] tegra-camrtc-capture-vi tegra-capture-vi: err_rec: attempting to reset the capture channel
[  335.322792] (NULL device *): vi_capture_control_message: NULL VI channel received
[  335.322953] t194-nvcsi 13e10000.host1x:nvcsi@15a00000: csi5_stream_close: Error in closing stream_id=2, csi_port=2
[  335.323169] (NULL device *): vi_capture_control_message: NULL VI channel received
[  335.323328] t194-nvcsi 13e10000.host1x:nvcsi@15a00000: csi5_stream_open: VI channel not found for stream- 2 vc- 0
[  335.323905] tegra-camrtc-capture-vi tegra-capture-vi: err_rec: successfully reset the capture channel
[  337.881490] tegra-camrtc-capture-vi tegra-capture-vi: uncorr_err: request timed out after 2500 ms
[  337.881759] tegra-camrtc-capture-vi tegra-capture-vi: err_rec: attempting to reset the capture channel
[  337.881999] (NULL device *): vi_capture_control_message: NULL VI channel received
[  337.882162] t194-nvcsi 13e10000.host1x:nvcsi@15a00000: csi5_stream_close: Error in closing stream_id=2, csi_port=2
[  337.882379] (NULL device *): vi_capture_control_message: NULL VI channel received
[  337.882543] t194-nvcsi 13e10000.host1x:nvcsi@15a00000: csi5_stream_open: VI channel not found for stream- 2 vc- 0
[  337.883104] tegra-camrtc-capture-vi tegra-capture-vi: err_rec: successfully reset the capture channel
[  337.901475] [RCE] ERROR: camera-ip/vi5/vi5.c:3893 [vi5_update_channel_match_data] "match configuration is already in use by by channel 35 cannot set channel match configuration"
[  337.901488] [RCE] ERROR: services/capture/capture-scheduler.c:3024 [capture_scheduler_thread] "Error processing event 0x100003"

I'm suspecting that I did something wrong during the setup.
Has anyone faced a similar issue or has any idea how to properly upgrade from 2-lane to 4-lane bus on JP5.14?