rellla changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi - *only registered users can talk*
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<wens> martinayotte: it seems to work ok after boot for me. I don't have my rootfs on it though
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<pgauret> hi, any idea as to why my messages to the linux-sunxi mailing list don't show up?
<pgauret> is it moderated or something?
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<karlp> you should have been getting mails from google that you can't post to the group without being a member?
<pgauret> thing is I am a member, tried with two accounts (yahoo, gmail)
<pgauret> hope my messages will not appear multiples times on the list now :(
<pgauret> I was looking for help troubleshooting the Alpine Linux (mainline) kernel not booting on Cubieboard and OrangePI
<pgauret> getting stuck at clk_disable_unused
* karlp shrugs, no idea then sorry
<pgauret> this is vanilla 4.19.14 no specific patches
<pgauret> building a kernel with multi_v7_defconfig works, building with Alpine's .config leads to a hang
<pgauret> tried to change a few sunxi related entries to =y but no improvement
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<g40> Hello. Would greatly appreciate some help enabling network support in u-boot on an AllWinner H5 board (NanoPi K1+). Modified device tree as here: https://pastebin.com/EaztkUKf. Any thoughts on how to fix?
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<mru> pgauret: try adding clk_ignore_unused to your kernel command line
<pgauret> mru thx will try
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<pgauret> @mru works, thanks a lot!! any idea of why a different .config would now require this additional option?
<pgauret> (so that I can help fixing this upstream for Alpine)
<mru> now you should figure out which clock was being erroneously disabled
<mru> the /sys/kernel/debug/clk/clk_summary list might help with that
<pgauret> (need to rebuild my test kernel with mmc support so that I can finish booting first :)
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<catphish> seems hdmi is more complicated than i thought, i seemed to have a perfect working setup, plugged it into a different hdmi sink, and nothing
<catphish> guess i need to actually negotiate with the display
<mru> well, you don't have to
<mru> you just have to use a mode that it supports
<martinayotte> wens: I didn't try to boot from eMMC, but from SDCard, it was hanging on H5 with ".needs_new_timings = true", just after detecting partitions on the eMMC without mounting them.
<catphish> mru: well that's what i thought :( but my code that outputs standard 1080p and works on my real tv, is failing on a usb capture card, it detects the signal as 1080p, but doesn't display anything
<catphish> maybe my mode is subtly wrong
<mru> or maybe the device is weird
<mru> plug it into a pc and check which modes it claims to support
<catphish> well it definitely supports "1080p" but maybe it's not so simple as that
<catphish> it could be demanding something unusual, works with u-boot so i'll find out what's different :)
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<catphish> yep, looks like my "1080p" is not the same as theirs
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<catphish> mru: turns out i'm just stupid and loads of my params for 1080p were out by one, my other monitors must have been more tolerant
<wens> martinayotte: what board do you have?
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<catphish> jernej: is there any existing work on writeback? or am i on my own now? :)
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<jernej> catphish: Of course there is, in BSP linux kernel
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<jernej> mainline linux just got suitable DRM writeback interface about one or two releases back
<jernej> afaik nobody worked on writeback yet
<jernej> that's why I asked if you would do the honor writing Linux driver, given that you plan to work with it anyway :)
<catphish> well i can certainly try :) or if not that, document how it works
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<catphish> trying to get my head around how it's routed
<jernej> I'm reading writeback description in DE2 documentation and it seems pretty well explained
<jernej> not exactly every detail, but good enough
<jernej> and it even supports scaling (vertical and horizontal) and CSC
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<catphish> it does indeed, which is cool, it's not clear what the input ports refer to (mixer0 and mixer1 maybe?)
<jernej> ah, scratch that, vertical coefficients for filtering seems not to be supported
<catphish> oh yeah, it doesn't do scaling in the way i want, but that's not important, because i'd rather do the scaling layer in the video output
<jernej> yeah, that's my understanding from reading documentation
<jernej> but I suggest you take a look in BSP driver
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<catphish> this is what i'm doing at the moment, very simple setup, and it seems to throw an "overflow" error https://paste.ubuntu.com/p/Dp4QpwyJbN/
<catphish> i'll go find the BSP code
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<jernej> catphish: I believe you have to enable writeback in mixer global control register too
<catphish> if you do, i can't see it :(
<catphish> where would the code be in the bsp kernel? i'll gladly dig around that
<jernej> check DE2 documentation, chapter 5.10.6.1, register GLB_CTL, bits 13:12, OUT_DATA_WB
<catphish> ah yeah, i did see that one, i wasn't sure what difference it would make, but i've tried setting it because "RT-WB fetch data before DEP port" sounded like what i wanted
<jernej> that is one of the BSP kernel releases
<catphish> ah thanks, i was struggling to find a h3 kernel at all
<jernej> but it seems that WB unit didn't changed a lot between SoCs
<catphish> i'll have a read
<catphish> that code looks like what i need, thanks!
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<martinayotte> wens: I've faced the issue with both OPiZero+H5 and NanoPiM1+2, doing new compatible with ".needs_new_timings = false" fixed the issue.
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