xavier nx平台调试多路imx274视频通路

2023-05-03 22:04:57

1. 前言

试图使用三个IMX274相机模块与Xavier NX，但得到以下错误

[ 55.932842] tegra194-vi5 15c10000.vi: [vi capture status] csi_port 0, stream_id 0, channel_id 1, virtual_channel_id 65535 [ 55.933086] tegra194-vi5 15c10000.vi: no reply from camera processor [ 55.933208] tegra194-vi5 15c10000.vi: vi capture get status failed

目前使用的是JetPack 4.4。看起来I2C通信是正常的，但试图从CSI端口读取时会超时

v4l2-compliance -d /dev/video0

v4l2-compliance SHA : not available Driver Info: Driver name : tegra-video Card type : vi-output, imx274 30-001a Bus info : platform:15c10000.vi:0 Driver version: 4.9.140 Capabilities : 0x84200001 Video Capture Streaming Extended Pix Format Device Capabilities Device Caps : 0x04200001 Video Capture Streaming Extended Pix Format Compliance test for device /dev/video0 (not using libv4l2): Required ioctls: test VIDIOC_QUERYCAP: OK Allow for multiple opens: test second video open: OK test VIDIOC_QUERYCAP: OK test VIDIOC_G/S_PRIORITY: OK test for unlimited opens: OK Debug ioctls: test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported) test VIDIOC_LOG_STATUS: OK Input ioctls: test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported) test VIDIOC_G/S_FREQUENCY: OK (Not Supported) test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported) test VIDIOC_ENUMAUDIO: OK (Not Supported) test VIDIOC_G/S/ENUMINPUT: OK test VIDIOC_G/S_AUDIO: OK (Not Supported) Inputs: 1 Audio Inputs: 0 Tuners: 0 Output ioctls: test VIDIOC_G/S_MODULATOR: OK (Not Supported) test VIDIOC_G/S_FREQUENCY: OK (Not Supported) test VIDIOC_ENUMAUDOUT: OK (Not Supported) test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported) test VIDIOC_G/S_AUDOUT: OK (Not Supported) Outputs: 0 Audio Outputs: 0 Modulators: 0 Input/Output configuration ioctls: test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported) test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported) test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported) test VIDIOC_G/S_EDID: OK (Not Supported) Test input 0: Control ioctls: test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK test VIDIOC_QUERYCTRL: OK test VIDIOC_G/S_CTRL: OK test VIDIOC_G/S/TRY_EXT_CTRLS: OK test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK test VIDIOC_G/S_JPEGCOMP: OK (Not Supported) Standard Controls: 1 Private Controls: 22 Format ioctls: test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK fail: v4l2-test-formats.cpp(1184): ret && node->has_frmintervals test VIDIOC_G/S_PARM: FAIL test VIDIOC_G_FBUF: OK (Not Supported) test VIDIOC_G_FMT: OK test VIDIOC_TRY_FMT: OK test VIDIOC_S_FMT: OK test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported) test Cropping: OK (Not Supported) test Composing: OK (Not Supported) test Scaling: OK (Not Supported) Codec ioctls: test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported) test VIDIOC_G_ENC_INDEX: OK (Not Supported) test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported) Buffer ioctls: test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK test VIDIOC_EXPBUF: OK Test input 0: Total: 43, Succeeded: 42, Failed: 1, Warnings: 0

采集命令

v4l2-ctl -d /dev/video0 –set-fmt-video=width=2592,height=1944,pixelformat=RG10 –set-ctrl bypass_mode=0 –stream-mmap –stream-count=100 [ 36.944293] tegra194-vi5 15c10000.vi: [vi capture status] csi_port -1, stream_id 65535, channel_id 0, virtual_channel_id 65535 [ 36.944534] tegra194-vi5 15c10000.vi: no reply from camera processor4 [ 36.944656] tegra194-vi5 15c10000.vi: uncorr_err: request timed out after 2500 ms [ 36.944815] tegra194-vi5 15c10000.vi: err_rec: attempting to reset the capture channel [ 36.952339] tegra-capture-ivc ivc-bc00000.rtcpu:ivccontrol@3: No callback found for msg id: 0x39 [ 36.952514] tegra-capture-ivc ivc-bc00000.rtcpu:ivccontrol@3: No callback found for msg id: 0x41 [ 36.952683] tegra-capture-ivc ivc-bc00000.rtcpu:ivccontrol@3: No callback found for msg id: 0x37 [ 36.952879] tegra194-vi5 15c10000.vi: err_rec: successfully reset the capture channel [ 39.504294] tegra194-vi5 15c10000.vi: [vi capture status] csi_port -1, stream_id 65535, channel_id 0, virtual_channel_id 65535 [ 39.504538] tegra194-vi5 15c10000.vi: no reply from camera processor4 [ 39.504665] tegra194-vi5 15c10000.vi: uncorr_err: request timed out after 2500 ms [ 39.504816] tegra194-vi5 15c10000.vi: err_rec: attempting to reset the capture channel [ 39.511988] tegra194-vi5 15c10000.vi: err_rec: successfully reset the capture channel [ 42.064330] tegra194-vi5 15c10000.vi: [vi capture status] csi_port -1, stream_id 65535, channel_id 0, virtual_channel_id 65535 [ 42.064575] tegra194-vi5 15c10000.vi: no reply from camera processor4 [ 42.064699] tegra194-vi5 15c10000.vi: uncorr_err: request timed out after 2500 ms [ 42.064844] tegra194-vi5 15c10000.vi: err_rec: attempting to reset the capture channel [ 42.075638] tegra194-vi5 15c10000.vi: err_rec: successfully reset the capture channel

没有改变imx274驱动程序

2. 查询trace信息 cat /sys/kernel/debug/tracing/trace # tracer: nop # # entries-in-buffer/entries-written: 462/462 #P:2 # # _—–=> irqs-off # / _—-=> need-resched # | / _—=> hardirq/softirq # || / _–=> preempt-depth # ||| / delay # TASK-PID CPU# |||| TIMESTAMP FUNCTION # | | | |||| | | gst-plugin-scan-6819 [001] …. 155.726605: tegra_channel_open: vi-output, imx274 30-001a gst-plugin-scan-6819 [000] …. 155.739603: tegra_channel_set_power: imx274 30-001a : 0x1 gst-plugin-scan-6819 [000] …. 155.739618: camera_common_s_power: status : 0x1 gst-plugin-scan-6819 [000] …. 155.750042: tegra_channel_set_power: 15a00000.nvcsi–3 : 0x1 gst-plugin-scan-6819 [000] …. 155.750047: csi_s_power: enable : 0x1 gst-plugin-scan-6819 [000] …. 155.756179: tegra_channel_close: vi-output, imx274 30-001a gst-plugin-scan-6819 [000] …. 155.756200: tegra_channel_set_power: imx274 30-001a : 0x0 gst-plugin-scan-6819 [000] …. 155.756214: camera_common_s_power: status : 0x0 gst-plugin-scan-6819 [000] …. 155.756609: tegra_channel_set_power: 15a00000.nvcsi–3 : 0x0 gst-plugin-scan-6819 [000] …. 155.756613: csi_s_power: enable : 0x0 gst-plugin-scan-6819 [000] …. 155.759137: tegra_channel_open: vi-output, imx274 31-001a gst-plugin-scan-6819 [000] …. 155.759158: tegra_channel_set_power: imx274 31-001a : 0x1 gst-plugin-scan-6819 [000] …. 155.759179: camera_common_s_power: status : 0x1 gst-plugin-scan-6819 [000] …. 155.770021: tegra_channel_set_power: 15a00000.nvcsi–2 : 0x1 gst-plugin-scan-6819 [000] …. 155.770024: csi_s_power: enable : 0x1 gst-plugin-scan-6819 [000] …. 155.770711: tegra_channel_close: vi-output, imx274 31-001a gst-plugin-scan-6819 [000] …. 155.770721: tegra_channel_set_power: imx274 31-001a : 0x0 gst-plugin-scan-6819 [000] …. 155.770731: camera_common_s_power: status : 0x0 gst-plugin-scan-6819 [000] …. 155.771158: tegra_channel_set_power: 15a00000.nvcsi–2 : 0x0 gst-plugin-scan-6819 [000] …. 155.771161: csi_s_power: enable : 0x0 gst-plugin-scan-6819 [000] …. 155.774443: tegra_channel_open: vi-output, imx274 32-001a gst-plugin-scan-6819 [000] …. 155.774455: tegra_channel_set_power: imx274 32-001a : 0x1 gst-plugin-scan-6819 [000] …. 155.774473: camera_common_s_power: status : 0x1 gst-plugin-scan-6819 [000] …. 155.785271: tegra_channel_set_power: 15a00000.nvcsi–1 : 0x1 gst-plugin-scan-6819 [000] …. 155.785276: csi_s_power: enable : 0x1 gst-plugin-scan-6819 [000] …. 155.785351: tegra_channel_close: vi-output, imx274 32-001a gst-plugin-scan-6819 [000] …. 155.785356: tegra_channel_set_power: imx274 32-001a : 0x0 gst-plugin-scan-6819 [000] …. 155.785364: camera_common_s_power: status : 0x0 gst-plugin-scan-6819 [000] …. 155.785652: tegra_channel_set_power: 15a00000.nvcsi–1 : 0x0 gst-plugin-scan-6819 [000] …. 155.785655: csi_s_power: enable : 0x0 kworker/0:0-4 [000] …. 158.174433: rtos_queue_peek_from_isr_failed: tstamp:5309811548 queue:0x0bcbcf78 kworker/0:0-4 [000] …. 158.174440: rtcpu_start: tstamp:5309813083 kworker/0:0-4 [000] …. 158.174443: rtos_queue_send_from_isr_failed: tstamp:5309824280 queue:0x0bcb41f8 kworker/0:0-4 [000] …. 158.174444: rtos_queue_send_from_isr_failed: tstamp:5309824431 queue:0x0bcb8a60 kworker/0:0-4 [000] …. 158.174445: rtos_queue_send_from_isr_failed: tstamp:5309824582 queue:0x0bcba5e0 kworker/0:0-4 [000] …. 158.174446: rtos_queue_send_from_isr_failed: tstamp:5309824727 queue:0x0bcbb3a0 kworker/0:0-4 [000] …. 158.174447: rtos_queue_send_from_isr_failed: tstamp:5309824874 queue:0x0bcbc160 kworker/0:0-4 [000] …. 158.174449: rtcpu_string: tstamp:5309825325 id:0x04010000 str:”Configuring ISP GoS. ” kworker/0:0-4 [000] …. 158.174484: rtcpu_string: tstamp:5309825507 id:0x04010000 str:” VM GOS[#0] addr=0xc2100000 ” kworker/0:0-4 [000] …. 158.174499: rtcpu_string: tstamp:5309825764 id:0x04010000 str:” VM GOS[#1] addr=0xc2101000 ” kworker/0:0-4 [000] …. 158.174512: rtcpu_string: tstamp:5309826035 id:0x04010000 str:” VM GOS[#2] addr=0xc2102000 ” kworker/0:0-4 [000] …. 158.174524: rtcpu_string: tstamp:5309826269 id:0x04010000 str:” VM GOS[#3] addr=0xc2103000 ” kworker/0:0-4 [000] …. 158.174537: rtcpu_string: tstamp:5309826504 id:0x04010000 str:” VM GOS[#4] addr=0xc2104000 ” kworker/0:0-4 [000] …. 158.174549: rtcpu_string: tstamp:5309826737 id:0x04010000 str:” VM GOS[#5] addr=0xc2105000 ” kworker/0:0-4 [000] …. 158.174561: rtcpu_string: tstamp:5309839670 id:0x04010000 str:”WARNING: t194/isp5.c:901 [config_channel] “” kworker/0:0-4 [000] …. 158.174563: rtcpu_string: tstamp:5309840088 id:0x04010000 str:”All error notifications not enabled: correctable” kworker/0:0-4 [000] …. 158.174565: rtcpu_string: tstamp:5309840206 id:0x04010000 str:”=0x00 uncorrectable=0x00″ kworker/0:0-4 [000] …. 158.174566: rtcpu_string: tstamp:5309840399 id:0x04010000 str:”” ” kworker/0:0-4 [000] …. 158.346385: rtos_queue_peek_from_isr_failed: tstamp:5314811912 queue:0x0bcbcf78 nvargus-daemon-6847 [001] …. 158.452746: tegra_channel_open: vi-output, imx274 30-001a nvargus-daemon-6847 [001] …. 158.452761: tegra_channel_set_power: imx274 30-001a : 0x1 nvargus-daemon-6847 [001] …. 158.452772: camera_common_s_power: status : 0x1 nvargus-daemon-6847 [001] …. 158.463310: tegra_channel_set_power: 15a00000.nvcsi–3 : 0x1 nvargus-daemon-6847 [001] …. 158.463317: csi_s_power: enable : 0x1 nvargus-daemon-6847 [001] …. 158.463508: tegra_channel_close: vi-output, imx274 30-001a nvargus-daemon-6847 [001] …. 158.463514: tegra_channel_set_power: imx274 30-001a : 0x0 nvargus-daemon-6847 [001] …. 158.463524: camera_common_s_power: status : 0x0 nvargus-daemon-6847 [001] …. 158.463735: tegra_channel_set_power: 15a00000.nvcsi–3 : 0x0 nvargus-daemon-6847 [001] …. 158.463739: csi_s_power: enable : 0x0 nvargus-daemon-6847 [001] …. 158.465769: tegra_channel_open: vi-output, imx274 31-001a nvargus-daemon-6847 [001] …. 158.465779: tegra_channel_set_power: imx274 31-001a : 0x1 kworker/0:2-1146 [000] …. 159.358407: rtos_queue_send_from_isr_failed: tstamp:5345996191 queue:0x0bcba5e0 kworker/0:2-1146 [000] …. 159.358408: rtos_queue_send_from_isr_failed: tstamp:5345996338 queue:0x0bcbb3a0 kworker/0:2-1146 [000] …. 159.358409: rtos_queue_send_from_isr_failed: tstamp:5345996487 queue:0x0bcbc160 kworker/0:2-1146 [000] …. 159.358412: rtcpu_vinotify_event: tstamp:5346297261 tag:RESERVED_18 channel:0x0b frame:0 vi_tstamp:3565096416 data:0x10000000 kworker/0:2-1146 [000] …. 159.358413: rtcpu_vinotify_event: tstamp:5346297430 tag:RESERVED_18 channel:0x0b frame:0 vi_tstamp:3565126112 data:0x31000002 kworker/0:2-1146 [000] …. 159.470666: rtos_queue_peek_from_isr_failed: tstamp:5349811911 queue:0x0bcbcf78 kworker/0:2-1146 [000] …. 159.638386: rtos_queue_peek_from_isr_failed: tstamp:5354811910 queue:0x0bcbcf78 kworker/0:2-1146 [000] …. 159.806423: rtos_queue_peek_from_isr_failed: tstamp:5359811911 queue:0x0bcbcf78 kworker/0:2-1146 [000] …. 159.974385: rtos_queue_peek_from_isr_failed: tstamp:5364811911 queue:0x0bcbcf78 kworker/0:2-1146 [000] …. 160.086401: rtos_queue_peek_from_isr_failed: tstamp:5369811910 queue:0x0bcbcf78 kworker/0:2-1146 [000] …. 160.254439: rtos_queue_peek_from_isr_failed: tstamp:5374811908 queue:0x0bcbcf78 kworker/0:2-1146 [000] …. 160.422450: rtos_queue_peek_from_isr_failed: tstamp:5379811910 queue:0x0bcbcf78 kworker/0:2-1146 [000] …. 160.590520: rtos_queue_peek_from_isr_failed: tstamp:5384811907 queue:0x0bcbcf78

没有从MIPI总线接收任何验证数据。可能需要探测MIPI信号和检查CSI通道配置匹配HW连接

检查跟踪发现下面的错误，表示rx FIFO溢出。

kworker/0:2-1146 [000] … 159.358389: rtcpu_nvcsi_intr: tstamp:5345623391 class:GLOBAL type:PHY_INTR0 phy:0 cil:0 st:0 vc:0 status:0x00000110 3. 调整Pix_clk_hz & 时钟

根据之前的经验可以尝试调整Pix_clk_hz 以及nvcsi和vi时钟

（1）修改Pix_clk_hz & mcLk_multiplier

设备树中修改了以下值: Pix_clk_hz从576000000到756000000 McLk_multiplier从24到25

（2）调高了nvcsi和vi时钟

echo 998400000 > /sys/kernel/debug/bpmp/debug/clk/vi/rate echo 1190400000 > /sys/kernel/debug/bpmp/debug/clk/isp/rate echo 400000000 > /sys/kernel/debug/bpmp/debug/clk/nvcsi/rate

但看起来这些值被限制在以下几个方面:

cat /sys/kernel/debug/bpmp/debug/clk/vi/rate 460800000 cat /sys/kernel/debug/bpmp/debug/clk/isp/rate 576000000 cat /sys/kernel/debug/bpmp/debug/clk/nvcsi/rate 314000000

按照上述修改后仍然无法采集查看trace也是一样

另一个潜在的信息来源: 运行如下命令

v4l2-ctl -d /dev/video0 –set-ctrl bypass_mode=0 –stream-mmap –stream-count=3 [ 221.009649] tegra194-vi5 15c10000.vi: [vi capture status] csi_port -1, stream_id 65535, channel_id 0, virtual_channel_id 65535 [ 221.009880] tegra194-vi5 15c10000.vi: no reply from camera processor [ 221.009995] tegra194-vi5 15c10000.vi: uncorr_err: request timed out after 2500 ms [ 221.010134] tegra194-vi5 15c10000.vi: err_rec: attempting to reset the capture channel [ 221.012389] tegra194-vi5 15c10000.vi: err_rec: successfully reset the capture channel

奇怪的是，csi_port一直报错是-1 可能原因是设备树的port匹配错误了

4. 查看media0

media-ctl -p -d /dev/media0

Media controller API version 0.1.0 Media device information ———————— driver tegra194-vi5 model NVIDIA Tegra Video Input Device serial bus info hw revision 0x3 driver version 0.0.0 Device topology – entity 1: imx274 30-001a (1 pad, 1 link) type V4L2 subdev subtype Sensor flags 0 device node name /dev/v4l-subdev0 pad0: Source [fmt:SRGGB10_1X10/3840×2160 field:none colorspace:srgb] -> “15a00000.nvcsi–3”:0 [ENABLED] – entity 3: 15a00000.nvcsi–3 (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev1 pad0: Sink <- “imx274 30-001a”:0 [ENABLED] pad1: Source -> “vi-output, imx274 30-001a”:0 [ENABLED] – entity 6: vi-output, imx274 30-001a (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video0 pad0: Sink <- “15a00000.nvcsi–3”:1 [ENABLED] – entity 18: imx274 31-001a (1 pad, 1 link) type V4L2 subdev subtype Sensor flags 0 device node name /dev/v4l-subdev2 pad0: Source [fmt:SRGGB10_1X10/3840×2160 field:none colorspace:srgb] -> “15a00000.nvcsi–2”:0 [ENABLED] – entity 20: 15a00000.nvcsi–2 (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev3 pad0: Sink <- “imx274 31-001a”:0 [ENABLED] pad1: Source -> “vi-output, imx274 31-001a”:0 [ENABLED] – entity 23: vi-output, imx274 31-001a (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video1 pad0: Sink <- “15a00000.nvcsi–2”:1 [ENABLED] – entity 35: imx274 32-001a (1 pad, 1 link) type V4L2 subdev subtype Sensor flags 0 device node name /dev/v4l-subdev4 pad0: Source [fmt:SRGGB10_1X10/3840×2160 field:none colorspace:srgb] -> “15a00000.nvcsi–1”:0 [ENABLED] – entity 37: 15a00000.nvcsi–1 (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev5 pad0: Sink <- “imx274 32-001a”:0 [ENABLED] pad1: Source -> “vi-output, imx274 32-001a”:0 [ENABLED] – entity 40: vi-output, imx274 32-001a (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video2 pad0: Sink <- “15a00000.nvcsi–1”:1 [ENABLED]

模式0的分辨率设置为3840X2160，但我已经尝试了很多不同的分辨率 (模式1= 1920×1080，模式2= 1280×720，模式3= 1280×540)

5. 启用dev_dbg()来确认端口映射

使用以下命令启用了dev_dbg()消息:

echo file channel.c +p > /sys/kernel/debug/dynamic_debug/control echo file csi4_fops.c +p > /sys/kernel/debug/dynamic_debug/control echo file csi2_fops.c +p > /sys/kernel/debug/dynamic_debug/control

trace信息如下

gst-plugin-scan-6821 [000] …. 79.146174: tegra_channel_open: vi-output, imx274 30-001a gst-plugin-scan-6821 [001] …. 79.147665: tegra_channel_set_power: imx274 30-001a : 0x1 gst-plugin-scan-6821 [001] …. 79.147680: camera_common_s_power: status : 0x1 gst-plugin-scan-6821 [001] …. 79.158725: tegra_channel_set_power: 15a00000.nvcsi–3 : 0x1 gst-plugin-scan-6821 [001] …. 79.158731: csi_s_power: enable : 0x1 gst-plugin-scan-6821 [001] …. 79.160926: tegra_channel_close: vi-output, imx274 30-001a gst-plugin-scan-6821 [001] …. 79.160933: tegra_channel_set_power: imx274 30-001a : 0x0 gst-plugin-scan-6821 [001] …. 79.160943: camera_common_s_power: status : 0x0 gst-plugin-scan-6821 [001] …. 79.161172: tegra_channel_set_power: 15a00000.nvcsi–3 : 0x0 gst-plugin-scan-6821 [001] …. 79.161176: csi_s_power: enable : 0x0 6. 检测设备树port匹配

用示波器检查了信号，看起来没问题。

此外，实际上能够使3个IMX274摄像机工作，但必须在模式配置中将num_lanes改为2而不是4。

如果我把它们设置为4，就不会像在之前的帖子中显示的那样工作。现在的设备输入port匹配如下：

host1x { vi@15c10000 { // Video Input: this is the port binding /* CSI Channels */ num-channels = <3>; // Number of video inputs ports { #address-cells = <1>; #size-cells = <0>; port@0 { // media pad port reg = <0>; liimx274_vi_in0: endpoint { port-index = <0>; // sensor port connection bus-width = <4>; // number of CSI lanes. Each CSI port has 2 CSI lanes, so there are 12 lanes total. remote-endpoint = <&liimx274_csi_out0>; // This binds the two ports. One is for sink and one for source }; }; port@1 { reg = <1>; liimx274_vi_in1: endpoint { port-index = <2>; // sensor port connection bus-width = <4>; // number of CSI lanes. Each CSI port has 2 CSI lanes, so there are 12 lanes total. remote-endpoint = <&liimx274_csi_out1>; // This binds the two ports. One is for sink and one for source }; }; port@2 { reg = <2>; liimx274_vi_in2: endpoint { port-index = <4>; // sensor port connection bus-width = <4>; // number of CSI lanes. Each CSI port has 2 CSI lanes, so there are 12 lanes total. remote-endpoint = <&liimx274_csi_out2>; // This binds the two ports. One is for sink and one for source }; }; }; }; // sensor -> (port0)NVCSI(port1) -> (port#)VI nvcsi@15a00000 { num-channels = <3>; #address-cells = <1>; #size-cells = <0>; channel@0 { reg = <0>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; liimx274_csi_in0: endpoint@0 { port-index = <0>; // sensor port connection bus-width = <4>; // number of CSI lanes. Each CSI port has 2 CSI lanes, so there are 12 lanes total. remote-endpoint = <&liimx274_imx274_out0>; // This binds the two ports. One is for sink and one for source }; }; port@1 { reg = <1>; liimx274_csi_out0: endpoint@1 { remote-endpoint = <&liimx274_vi_in0>; }; }; }; }; channel@1 { reg = <1>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; liimx274_csi_in1: endpoint@2 { port-index = <2>; // sensor port connection bus-width = <4>; // number of CSI lanes. Each CSI port has 2 CSI lanes, so there are 12 lanes total. remote-endpoint = <&liimx274_imx274_out1>; // This binds the two ports. One is for sink and one for source }; }; port@1 { reg = <1>; liimx274_csi_out1: endpoint@3 { remote-endpoint = <&liimx274_vi_in1>; }; }; }; }; channel@2 { reg = <2>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; liimx274_csi_in2: endpoint@4 { port-index = <4>; // sensor port connection bus-width = <4>; // number of CSI lanes. Each CSI port has 2 CSI lanes, so there are 12 lanes total. remote-endpoint = <&liimx274_imx274_out2>; // This binds the two ports. One is for sink and one for source }; }; port@1 { reg = <1>; liimx274_csi_out2: endpoint@5 { remote-endpoint = <&liimx274_vi_in2>; }; }; }; }; }; };

我使用的是来自Leopard Imaging的imx274驱动程序和传感器初始化表。我以为他们使用的是四车道传感器配置 tegra194-camera-imx274-dual.dtsi dsi在那里都使用总线宽度4

我想找到了问题的根源。 imx274_mode_tbls.h实际上是为2 lane配置的，而设备树是配置的是4lane的配置所以需要更新4lane的sensor配置文件即可

解决办法：更新imx274.h, imx274.c，和imx274_mode_tbls.h)为4道配置，现在我的相机工作。

问题：图像看起来很模糊，尝试调试过饱和度，tnr模式，e-mode和wbmode，但仍然很模糊 xavier nx平台调试多路imx274视频通路