Hi, I am trying to capture from a parallel OV5640 on a imx6ull-evk board. Here are the device tree changes: https://pastebin.com/raw/PZpJjagJ First, I got the following warning: [ 7.788866] csi: Registered csi capture as /dev/video1 [ 7.797382] ------------[ cut here ]------------ [ 7.802141] WARNING: CPU: 0 PID: 1 at drivers/staging/media/imx/imx7-media-csi.c:1168 imx7_csi_notify_bound+0x40/0x50 [ 7.813116] Modules linked in: [ 7.816436] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.0-next-20201223-00003-gaaee78ed150-dirty #304 [ 7.826015] Hardware name: Freescale i.MX6 Ultralite (Device Tree) [ 7.832281] [<c0111a68>] (unwind_backtrace) from [<c010c068>] (show_stack+0x10/0x14) [ 7.840151] [<c010c068>] (show_stack) from [<c0e14570>] (dump_stack+0xe0/0x10c) [ 7.847570] [<c0e14570>] (dump_stack) from [<c0125a7c>] (__warn+0x104/0x118) [ 7.854734] [<c0125a7c>] (__warn) from [<c0125b38>] (warn_slowpath_fmt+0xa8/0xb8) [ 7.862326] [<c0125b38>] (warn_slowpath_fmt) from [<c0a66e0c>] (imx7_csi_notify_bound+0x40/0x50) [ 7.871227] [<c0a66e0c>] (imx7_csi_notify_bound) from [<c09ae084>] (v4l2_async_match_notify+0x50/0x124) To avoid the warning I did: --- a/drivers/staging/media/imx/imx7-media-csi.c +++ b/drivers/staging/media/imx/imx7-media-csi.c @@ -1164,12 +1164,14 @@ static int imx7_csi_notify_bound(struct v4l2_async_notifier *notifier, struct imx7_csi *csi = imx7_csi_notifier_to_dev(notifier); struct media_pad *sink = &csi->sd.entity.pads[IMX7_CSI_PAD_SINK]; - /* The bound subdev must always be the CSI mux */ - if (WARN_ON(sd->entity.function != MEDIA_ENT_F_VID_MUX)) - return -ENXIO; + if (csi->is_csi2) { + /* The bound subdev must always be the CSI mux */ + if (WARN_ON(sd->entity.function != MEDIA_ENT_F_VID_MUX)) + return -ENXIO; - /* Mark it as such via its group id */ - sd->grp_id = IMX_MEDIA_GRP_ID_CSI_MUX; + /* Mark it as such via its group id */ + sd->grp_id = IMX_MEDIA_GRP_ID_CSI_MUX; + } return v4l2_create_fwnode_links_to_pad(sd, sink); } # media-ctl -p Media controller API version 5.10.0 Media device information ------------------------ driver imx7-csi model imx-media serial bus info hw revision 0x0 driver version 5.10.0 Device topology - entity 1: csi (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev0 pad0: Sink [fmt:UYVY8_2X8/800x600 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range] <- "ov5640 1-003c":0 [] pad1: Source [fmt:UYVY8_2X8/800x600 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range] -> "csi capture":0 [] - entity 4: csi capture (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video1 pad0: Sink <- "csi":1 [] - entity 10: ov5640 1-003c (1 pad, 1 link) type V4L2 subdev subtype Sensor flags 0 device node name /dev/v4l-subdev1 pad0: Source [fmt:UYVY8_2X8/640x480@1/30 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:full-range] -> "csi":0 [] And then: media-ctl -l "'ov5640 1-003c':0 -> 'csi':0[1]" media-ctl -l "'csi':1 -> 'csi capture':0[1]" media-ctl -V "'ov5640 1-003c':0 [fmt:UYVY2X8/640x480]" media-ctl -V "'csi':0 [fmt:AYUV32/640x480]" When trying to capture via v42-ctl: # v4l2-ctl --stream-mmap -d /dev/video1 [ 411.627032] csi: capture format not valid Or with gstreamer: # gst-launch-1.0 v4l2src device=/dev/video1 ! fakesink Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Pipeline is PREROLLED ... Setting pipeline to PLAYING ... New clock: GstSystemClock [ 439.933324] csi: pipeline start failed with -19 Any suggestions? Thanks, Fabio Estevam
