I have successfully modified device tree files in the mainline 4.15.1 kernel to get a display product using the i.MX53 processor to initialize the imx-media drivers. I think up to this point they have only been tested on i.MX6 processors. I am using two ADV7180 analog capture chips, one per CSI port, on this display product. I have everything initialize successfully at boot, but I am unable to get the media-ctl command to link the ADV7180 devices to the CSI ports. I used the following website as guidance of how to setup the links between media devices: https://linuxtv.org/downloads/v4l-dvb-apis/v4l-drivers/imx.html When trying to link the ADV7180 chip to a CSI port, I use the following command and get the result below: media-ctl -v -l "'adv7180 1-0021':0->'ipu1_csi0':0[1]" No link between "adv7180 1-0021":0 and "ipu1_csi0":0 media_parse_setup_link: Unable to parse link Unable to parse link: Invalid argument (22) How do I get the ADV7180 and CSI port on the i.MX53 processor to link? The difference for the i.MX53 compared to the i.MX6 processor is that there is only one IPU and no mipi support, so my device tree does not use any video-mux or mux devices. Could this have something to do with why I can't link the ADV7180 to the CSI port? Here is the output of the "media-ctl -p -v" command: Opening media device /dev/media0 Enumerating entities looking up device: 81:10 looking up device: 81:11 looking up device: 81:12 looking up device: 81:4 looking up device: 81:13 looking up device: 81:5 looking up device: 81:14 looking up device: 81:15 looking up device: 81:16 looking up device: 81:17 looking up device: 81:6 looking up device: 81:18 looking up device: 81:7 looking up device: 81:19 looking up device: 81:20 looking up device: 81:8 looking up device: 81:21 looking up device: 81:9 Found 18 entities Enumerating pads and links Media controller API version 4.15.1 Media device information ------------------------ driver imx-media model imx-media serial bus info hw revision 0x0 driver version 4.15.1 Device topology - entity 1: adv7180 1-0021 (1 pad, 0 link) type V4L2 subdev subtype Unknown flags 20004 device node name /dev/v4l-subdev0 pad0: Source [fmt:UYVY8_2X8/720x480 field:interlaced] - entity 3: adv7180 1-0020 (1 pad, 0 link) type V4L2 subdev subtype Unknown flags 20004 device node name /dev/v4l-subdev1 pad0: Source [fmt:UYVY8_2X8/720x480 field:interlaced] - entity 5: ipu1_csi1 (3 pads, 3 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev2 pad0: Sink [fmt:UYVY8_2X8/640x480 field:none crop.bounds:(0,0)/640x480 crop:(0,0)/640x480 compose.bounds:(0,0)/640x480 compose:(0,0)/640x480] pad1: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_ic_prp":0 [] -> "ipu1_vdic":0 [] pad2: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_csi1 capture":0 [] - entity 9: ipu1_csi1 capture (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video4 pad0: Sink <- "ipu1_csi1":2 [] - entity 15: ipu1_csi0 (3 pads, 3 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev3 pad0: Sink [fmt:UYVY8_2X8/640x480 field:none crop.bounds:(0,0)/640x480 crop:(0,0)/640x480 compose.bounds:(0,0)/640x480 compose:(0,0)/640x480] pad1: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_ic_prp":0 [] -> "ipu1_vdic":0 [ENABLED] pad2: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_csi0 capture":0 [] - entity 19: ipu1_csi0 capture (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video5 pad0: Sink <- "ipu1_csi0":2 [] - entity 25: ipu1_ic_prp (3 pads, 5 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev4 pad0: Sink [fmt:AYUV8_1X32/640x480 field:none] <- "ipu1_csi1":1 [] <- "ipu1_csi0":1 [] <- "ipu1_vdic":2 [ENABLED] pad1: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_ic_prpenc":0 [] pad2: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_ic_prpvf":0 [ENABLED] - entity 29: ipu1_vdic (3 pads, 3 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev5 pad0: Sink [fmt:AYUV8_1X32/640x480 field:none] <- "ipu1_csi1":1 [] <- "ipu1_csi0":1 [ENABLED] pad1: Sink [fmt:UYVY8_2X8/640x480 field:none] pad2: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_ic_prp":0 [ENABLED] - entity 33: ipu2_vdic (3 pads, 1 link) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev6 pad0: Sink [fmt:AYUV8_1X32/640x480 field:none] pad1: Sink [fmt:UYVY8_2X8/640x480 field:none] pad2: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu2_ic_prp":0 [] - entity 37: ipu1_ic_prpenc (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev7 pad0: Sink [fmt:AYUV8_1X32/640x480 field:none] <- "ipu1_ic_prp":1 [] pad1: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_ic_prpenc capture":0 [] - entity 40: ipu1_ic_prpenc capture (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video6 pad0: Sink <- "ipu1_ic_prpenc":1 [] - entity 46: ipu1_ic_prpvf (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev8 pad0: Sink [fmt:AYUV8_1X32/640x480 field:none] <- "ipu1_ic_prp":2 [ENABLED] pad1: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu1_ic_prpvf capture":0 [ENABLED] - entity 49: ipu1_ic_prpvf capture (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video7 pad0: Sink <- "ipu1_ic_prpvf":1 [ENABLED] - entity 55: ipu2_ic_prp (3 pads, 3 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev9 pad0: Sink [fmt:AYUV8_1X32/640x480 field:none] <- "ipu2_vdic":2 [] pad1: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu2_ic_prpenc":0 [] pad2: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu2_ic_prpvf":0 [] - entity 59: ipu2_ic_prpenc (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev10 pad0: Sink [fmt:AYUV8_1X32/640x480 field:none] <- "ipu2_ic_prp":1 [] pad1: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu2_ic_prpenc capture":0 [] - entity 62: ipu2_ic_prpenc capture (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video8 pad0: Sink <- "ipu2_ic_prpenc":1 [] - entity 68: ipu2_ic_prpvf (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev11 pad0: Sink [fmt:AYUV8_1X32/640x480 field:none] <- "ipu2_ic_prp":2 [] pad1: Source [fmt:AYUV8_1X32/640x480 field:none] -> "ipu2_ic_prpvf capture":0 [] - entity 71: ipu2_ic_prpvf capture (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video9 pad0: Sink <- "ipu2_ic_prpvf":1 [] Best regards, Matthew Starr
