[08:30] <KitsuWhooa> Since I asked in #linuxtv and I got no answer, I'll try here as well. Does anyone have a card with saa7134-dvb support, and can test if the driver is still supposed to work? I've been trying to add support for a card for a while now, and I can't get dvb to work no matter what I try
[19:10] <BWhitten> Hi all, I am having a first dabble at V4L and hooking up a receiver to my imx8mp over mipi using virtual channels, so far I believe I have hooked up the subdevices but I'm a bit stumped where to take it from there to a series of capture devices, https://pastebin.com/8KPvTdVb
[19:56] <pinchartl> BWhitten: out-of-tree drivers for the i.MX8MP CSI-2 receiver and ISI, right ?
[20:00] <BWhitten> pinchartl, yeh unfortunately so, drivers in staging in an nxp kernel. Although I have spotted that ISI was disabled the dts I based mine on, so that certainly wont help.
[20:01] <pinchartl> the ISI is needed
[20:02] <pinchartl> unless you want to use the ISP, but that's way more complicated, and mostly applicable to raw camera sensors
[20:02] <pinchartl> I happen to be working on ISI support for the i.MX8MP
[20:02] <pinchartl> with the goal of upstreaming it
[20:02] <pinchartl> but there's a ton of cleanups needed, the BSP drivers are awful
[20:05] <BWhitten> pinchartl, oh nice well I have the ISI enabled now but loading my sensor driver panics the kernel somewhere in subdev_notifier_complete. Just so I'm not barking up the wrong tree does the ISI support virtual mipi channels (if that's even its job)?
[20:06] <BWhitten> their drivers seems to suggest it does but I cant find anything concrete on it
[20:07] <pinchartl> the ISI hardware does. the BSP driver probably does, somehow, to some extent, with some bugs :-)
[20:08] <BWhitten> looks like it makes the sink pads: https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/staging/media/imx/imx8-isi-cap.c?h=lf-5.10.y#n1740
[20:13] <pinchartl> so you need multiple virtual channels ?
[20:15] <BWhitten> yeh my receiver takes 4 NTSC/PAL sources and squirts out virtual channels
[20:15] <pinchartl> do you need to start/stop capture independently on the different sources ?
[20:17] <BWhitten> not likely, pop them all into gstreamer
[20:30] <BWhitten> well I'll have to call it for the evening, but promising that it -may- be possible. Have to hunt out the panic in creating the media pad links
[20:31] <pinchartl> BWhitten: how do I let you know once I'll have a clean ISI driver ready for upstream ?