#linux-sunxi on 2018-10-03 — 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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09:13 <wens> montjoie: fyi I see additional patches to fix the regulator GPIO descriptor issue, in both the regulator and gpio trees

09:14 <wens> montjoie: specifcally, check the tip of regulator/for-4.20

09:14 <montjoie> wens: why I dont see them in next ?

09:16 <wens> CommitDate: Tue Oct 2 14:16:00 2018 +0100

09:16 <wens> you will probably see them in the next -next?

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09:57 <montjoie> ok

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11:03 <paulk-leonov> by the way, has anyone managed to get dual-head with LCD/HDMI with mainline (say, on A20)?

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11:43 <marble_visions> hi all, just how close to AOSP can I get with an allwinner soc, if at all possible? my idea is to spend as little time as possible porting

11:52 <KotCzarny> afaik no one did it with full hw accel yet

11:52 <marble_visions> KotCzarny: hw accel meaning the codecs or the mali-s?

11:52 <KotCzarny> both

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11:53 <marble_visions> i see i could piggyback on this: https://github.com/ayufan-pine64/android-7.1/releases.. but i need to see what's the diff

11:53 <paulk-leonov> mripard, oh well, I found the bit to invert the DE signal polarity (which works too for the bananapi 3.5" panel) so I'll probably add support for low DE in our u-boot and DRM drivers (the panel flags to describe that already exist for both, actually) instead of that nasty GPIO workaround

11:54 <paulk-leonov> it was well hidden in allwinner code and not documented in any datasheet...

11:54 <KotCzarny> marble_visions: it still uses 3.10.x

11:59 <marble_visions> KotCzarny: right. so no devicetree, no MTD?, no 2017 mali blobs

12:01 <KotCzarny> havent used 3.10 so dont know what it supports

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12:15 <wens> paulk-leonov: best platform to try that is the a31 hummingbird

12:15 <wens> paulk-leonov: it has hdmi and rgb bridge hooked up to lcd

12:19 <wens> paulk-leonov: btw, does it have polarity settings for all signals?

12:20 <paulk-leonov> wens, mhh I don't have A31

12:20 <paulk-leonov> wens, it looks like it yes

12:21 <paulk-leonov> wens, here's the reg description that was useful: https://gagarine.paulk.fr/collins/~paulk/paste/index.php?paste=44d405542ec3548c28ff92bd6ded8f55&raw=true

12:21 <paulk-leonov> so it can invert all data pins, h/vsync, clk, de and dclk

12:22 <wens> hmm. I remember this was in the datasheets though

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12:55 <paulk-leonov> maybe I didn't look at the right one then!

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15:05 <paulk-leonov> wens, mripard: it seems that u-boot assumes that the TCON0_POL bits indicate active-low (when set) while linux assumes it's active-high

15:05 <paulk-leonov> see http://git.denx.de/?p=u-boot.git;a=blob;f=drivers/video/sunxi/lcdc.c;h=63c47bf1bcd2624e56aa23c1cefbdbf1d0955423;hb=HEAD#l133

15:05 <paulk-leonov> and https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git/tree/drivers/gpu/drm/sun4i/sun4i_tcon.c?h=sunxi/for-next#n399

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15:05 <paulk-leonov> this is a bit confusing

15:05 <paulk-leonov> for the DE pin, it definitely indicates active-low

15:05 <paulk-leonov> am I missing something here?

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15:35 <wens> I would assume "non-inverted" means active high

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16:14 <paulk-leonov> wens, so in that case, linux is wrong and u-boot is right?

16:16 <anarsoul|2> paulk-leonov: hey

16:16 <paulk-leonov> anarsoul|2, hey!

16:16 <anarsoul|2> what's the status of your cedrus patches?

16:16 <paulk-leonov> anarsoul|2, it's a bit messy tbh

16:16 <paulk-leonov> mpeg-2 got merged

16:16 <anarsoul|2> nice

16:16 <anarsoul|2> what about h264?

16:17 <paulk-leonov> h264 is a separate series and jernej (maybe others) have fixes

16:17 <paulk-leonov> that should go on top

16:17 <anarsoul|2> I'd like to try it on a64

16:17 <paulk-leonov> and I probably have enough material to make v2 of h265

16:17 <paulk-leonov> yeah me too

16:17 <paulk-leonov> and h5

16:17 <anarsoul|2> I have few spare hours in the morning for next few days due to jet lag :)

16:18 <anarsoul|2> so what should I start with?

16:18 <paulk-leonov> anarsoul|2, well, I don't have an up-to-date tree readily available

16:19 <paulk-leonov> but for platform support, it should be enough to work with media next and sunxi next

16:20 <paulk-leonov> for A64, it's mainly about adding bindings and seeing if things break or not

16:21 <anarsoul|2> I see

16:22 <wens> paulk-leonov: probably need to verify with a scope :(

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16:22 <paulk-leonov> wens, yeah that would be safer

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17:58 <quark_> I have been implementing AXP803 battery and ac power support. Now have working patch ready but I don't know where to send it and should I split it to multiple patches

17:58 <quark_> https://pastebin.com/Tvdd1QSK

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18:00 <quark_> scripts/get_maintainer.pl returns quite long list of maintainers and mailing lists

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18:20 <anarsoul|2> quark_: you need to split dts, Documentation/bindings and actual code

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18:25 <montjoie> MoeIcenowy: do you have a recent branch with patchs for H6 dwmac-sun8i ?

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18:34 <quark_> anarsoul|2: okey. checkpatch.pl gave hint to do that kind of split too. Still bit unclear should I send all those three patches to devicetree@vger.kernel.org or just documentation + dts changes?

18:35 <anarsoul|2> quark_: send to everyone who's mentioned by checkpatch.pl, including MLs

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20:42 <embed-3d> Has someone booted an H6 board with mainline u-boot and can give me link to the correct aft? The u-boot spl stucks with the message Trying to boot from MMC1...

20:42 <anarsoul|2> embed-3d: ask MoeIcenowy

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20:43 <anarsoul|2> I'd use ATF from her github

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21:02 <embed-3d> anarsoul|2: Thanks! got it working!

21:03 <anarsoul|2> np

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21:38 <embed-3d> anarsoul|2: Just found out that, she upstreamed everything: https://github.com/ARM-software/arm-trusted-firmware

21:39 <anarsoul|2> embed-3d: nice

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