#linux-sunxi on 2020-04-15 — irc logs at freenode.irclog.whitequark.org

2018-08-03 10:18 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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01:18 <sunshavi> sbbg: how is ur kernel debugging going?

01:20 <sunshavi> adding verbose debug (on bootargs could give you more messages; modify boot.cmd and compile it). I have been debugging 5.6 last week

02:20 <sbbg> sunshavi, thank for asking. I just got the latest LibreELEC-64bit with 5.6 kernel, which is quite stable so far.

02:21 <sbbg> They backport something from 5.7, it seems, which makes some difference.

02:22 <sbbg> I haven't go into detail yet. I'm testing my custom gentoo build with ffmpeg. It look like DRM_prime is finally working.

02:23 <sunshavi> That sounds nice. I am on Arch

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02:26 <sbbg> Just curious, I've seen there are OpenGL wrapper on GLES option in rk3328 media script. From here: https://forum.armbian.com/topic/9310-rk3328-media-script-rock64-renegade/

02:26 <sbbg> Is that available too for us? I'm on PineH64, I haven't check it yet. I kind of hope it will help me run full KDE plasma.

02:28 <pmp-p> sbbg that probably is https://github.com/ptitSeb/gl4es wrapper, yes it should help

02:29 <sbbg> Hi, do you know how do they achieve that? Do that provide an alternative libGL.so or something like that?

02:29 <pmp-p> it provides a shim library indeed

02:30 <pmp-p> you still have to install mesa headers to use it though

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02:30 <sbbg> ok, that sounds fine for me. Thanks.

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03:38 <ElectroStrong> anyone on here have any experience with the Allwinner A10 boards? More specifically, was there ever support added for the video decode engine in the Mali 400 that was introduced into X and/or the 3.4 kernel?

03:39 <ElectroStrong> I have a project where I'm bringing my Hackberry back up to Ubuntu 18 or 20 armhf and would like to use it as a project board (possibly video player if there was progress and a remote audio player if not)....

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06:27 <anarsoul> ElectroStrong: Mali400 doesn't do video decoding

06:27 <anarsoul> it's GPU, not VPU

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14:49 <fALSO> yo tllim

14:50 <tllim> hi

14:54 <ElectroStrong> thanks anarsoul - I found that out after digging into it a bit deeper and tried catching back up to speed

14:56 <ElectroStrong> Ironically - I have ubuntu 20.04 running on a Hackberry A10 now with LXDE - just trying to get past the final hurdle to see what type of video acceleration I can enable

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16:07 <megi> clementp[m]: https://lkml.org/lkml/2020/3/21/478 this is how lima handles devfreq, looks like it uses dev_pm_opp_set_regulators

16:09 <clementp[m]> Yes and this will trigger the same issue, as it calls lima_device_init then lima_regulator_init and after it call devfreq_init

16:10 <clementp[m]> Sry didn't if you follow my patches

16:10 <megi> I'll have to take a peek :)

16:10 <clementp[m]> But i post quite same patch, but it's triggering an error with debugfs as regulator are consume two times

16:11 <megi> hmm, interesting

16:13 <clementp[m]> Now i'm waiting to now if we take the approach where we get 2 times the same regulator in the same devices

16:14 <clementp[m]> Or if we need to update the device_init, and only get regulator if there is no devfreq

16:14 <megi> where is the second reference taken from?

16:14 * clementp[m] sent a long message: < https://matrix.org/_matrix/media/r0/download/matrix.org/gEvjnpTQUfWMfQuAwrTBuMWE >

16:15 <clementp[m]> sorry you can't see with matrix

16:15 <clementp[m]> https://lkml.org/lkml/2020/4/14/546

16:15 <megi> ah, for enable in the probe function, I see

16:16 <megi> I think you can have multiple references, unless you try to take an exclusive reference

16:17 <megi> neither looks exclusive

16:19 <megi> ah, I see what the issue is

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18:30 <nik123> this may sound like a dumb question, apologies for that, but how do i convert the legacy fex device configuration to device tree

18:30 <nik123> any response would be appretiated

18:31 <nik123> the SoC is A20

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