Kernel 媒体ctl IPU绑定：无法设置链接

我正在尝试在imx6 var dart上运行最新的主线内核（5.1.1）。 目标是从并行IPU（adv7180）获取视频并通过网络发送

在5.0版本中，我使用以下命令绑定adv7180：

media-ctl --reset

media-ctl -l "'adv7180 0-0020':0 -> 'ipu2_csi1_mux':1[1]"
media-ctl -l "'ipu2_csi1_mux':2 -> 'ipu2_csi1':0[1]"
media-ctl -l "'ipu2_csi1':1 -> 'ipu2_vdic':0[0]"
media-ctl -l "'ipu2_vdic':2 -> 'ipu2_ic_prp':0[1]"
media-ctl -l "'ipu2_ic_prp':2 -> 'ipu2_ic_prpvf':0[1]"
media-ctl -l "'ipu2_ic_prpvf':1 -> 'ipu2_ic_prpvf capture':0[1]"

resolution="720x576"
media-ctl -V "'adv7180 0-0020':0 [fmt:UYVY2X8/$resolution]"
media-ctl -V "'ipu2_csi1_mux':2 [fmt:UYVY2X8/$resolution field:interlaced]"
media-ctl -V "'ipu2_csi1':1 [fmt:AYUV32/$resolution field:interlaced]"
media-ctl -V "'ipu2_vdic':2 [fmt:AYUV32/$resolution field:none]"
media-ctl -V "'ipu2_ic_prp':2 [fmt:AYUV32/$resolution field:none]"
media-ctl -V "'ipu2_ic_prpvf':1 [fmt:AYUV32/$resolution field:none]"

但是我在捕获分辨率方面遇到了一些问题（内核试图使用720x240）。这个问题似乎在下一个内核版本5.1.1中得到了解决

但现在，当我尝试在ipu2_vdic media ctl上绑定ipu2_csi1时，返回以下错误：

root:devboard $ media-ctl -v -l "'ipu2_csi1':1 -> 'ipu2_vdic':0[1]"
Opening media device /dev/media0
Enumerating entities
Found 23 entities
Enumerating pads and links
Setting up link 83:1 -> 5:0 [5]
Opening media device /dev/media0
media_setup_link: Unable to setup link (Invalid argument)

 'ipu2_csi1':1 -> 'ipu2_vdic':0[1]
                                 ^
Unable to parse link: Invalid argument (22)

gst-launch-1.0 -v v4l2src device=/dev/video3 ! fakesink
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Device '/dev/video3' does not support progressive interlacing
Additional debug info:
gstv4l2object.c(3813): gst_v4l2_object_set_format_full (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Device wants interleaved interlacing
Execution ended after 0:00:00.000897000
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

graph.png： vdic未绑定，管道不工作

我尝试在没有vdic的情况下使用管道，但gstreamer返回以下错误：

root:devboard $ media-ctl -v -l "'ipu2_csi1':1 -> 'ipu2_vdic':0[1]"
Opening media device /dev/media0
Enumerating entities
Found 23 entities
Enumerating pads and links
Setting up link 83:1 -> 5:0 [5]
Opening media device /dev/media0
media_setup_link: Unable to setup link (Invalid argument)

 'ipu2_csi1':1 -> 'ipu2_vdic':0[1]
                                 ^
Unable to parse link: Invalid argument (22)

gst-launch-1.0 -v v4l2src device=/dev/video3 ! fakesink
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Device '/dev/video3' does not support progressive interlacing
Additional debug info:
gstv4l2object.c(3813): gst_v4l2_object_set_format_full (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Device wants interleaved interlacing
Execution ended after 0:00:00.000897000
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

有什么想法吗？ 我无法在ipu1_vdic上绑定ipu1_csi0

谢谢

---

编辑：

它在ventana（gateworks）板上也不起作用

---

编辑2: 问题在于：

内核中的源代码：drivers/staging/media/imx/imx media vdic.c:748

/* direct pad must connect to a CSI */
        if (!(remote_sd->grp_id & IMX_MEDIA_GRP_ID_CSI) ||
            remote->index != CSI_SRC_PAD_DIRECT) {
            ret = -EINVAL;
            goto out;
        }

内核执行此goto。

使用此修补程序解决：“修复错误的CSI组ID”