#linux-sunxi on 2018-10-25 — 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*

00:00 <smaeul> I have a driver, but it won't be accepted yet, unless I either do some big refactoring of the mailbox framework (to reconcile with SCPI mailbox client assumptions), or else drop Linux SCPI client support

00:00 <smaeul> but the driver works well

00:01 <smaeul> if we *do* get SCPI client support in Linux, that also solves THS driver problems, since it can be provided as an SCPI sensor

00:01 <anarsoul|2> yeah, that would be nice

00:01 <smaeul> (that's currently provided in crust: thermal polling and DVFS throttling)

00:02 <smaeul> but it would work as well to have Linux do the throttling since it owns the PMIC and thus VDD-CPUX

00:04 <smaeul> anyway, the technical issues are mostly solved, it's now a matter of configuring U-Boot + ATF + Linux + ARISC firmware to not step on the others' toes :)

00:04 <anarsoul|2> smaeul: looking forward to see it upstreamed :)

00:06 <smaeul> anarsoul|2: do you happen to know if the pinebook's lid sensor provides a level or edge when you open/close the lid?

00:06 <anarsoul|2> smaeul: I can check tonight

00:07 <anarsoul|2> I *guess* level, but I'm not sure

00:07 <smaeul> cool, thanks

00:07 <anarsoul|2> smaeul: you don't have a pinebook?

00:07 <smaeul> no

00:07 <anarsoul|2> darn

00:08 <anarsoul|2> I'd be happy to buy you one if tllim moves you to the top of the queue

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05:12 <jernej> smaeul: so you know how to put DRAM in self-refresh mode?

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11:31 <jaganteki> Hi wens

11:32 <jaganteki> wens, about BPI DSI panel. are you refering to using RGB binging file with bananapi,s070wv20-ct16-icn6211 compatible

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11:49 <smaeul> jernej: no, so far I've just left DRAM on, but if I want self-refresh, it's just a few days of reading through ARISC blob assembly :)

11:51 <smaeul> I know where the self-refresh code is, but I'd have to do some reading up on the controller before I'd understand it

11:53 <KotCzarny> lol

11:54 <KotCzarny> you would be the sunxi hero (bigger than you are already are)

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15:09 <jernej> smaeul: do you have any numbers how much better is ARISC managed sleep versus current suspend mode?

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16:00 <rellla> mripard: nice slide from elce, should be pushed to the wiki :)

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17:48 <heatfanjohn> Hello, I'm trying to get a Desktop environment working on a Pine A64+ SBC with an Allwinner A64 chip. I'm running Fedora 28 and Linux 4.18.9-200. I added the GPU to the DTB and I have the Mali R6P2 driver loaded and the /dev/mali device exists. I was told that I need a KMS driver. I believe that I'm going down the path that @Drahtnod went down on 8/7 with the help of @paulk_leonov

17:49 <heatfanjohn> Here's that day's log: https://freenode.irclog.whitequark.org/linux-sunxi/2018-08-07#22775324;

17:52 <anarsoul|2> heatfanjohn: wait for linux-4.20-rc1 (or 5.0-rc1?) and use it, it has HDMI support for A64

17:52 <anarsoul|2> or use linux-next

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17:53 <fALSO> will it be 5.0 ? never tought about it

17:53 <anarsoul|2> probably

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17:54 <fALSO> only 5 moar to catch with Windoze :-D

17:54 <anarsoul|2> 5 * 20

17:54 <anarsoul|2> :P

17:54 <anarsoul|2> that'll take a while

17:54 <fALSO> im waiting for 4.20 too

17:54 <fALSO> because of the hdmi clock fixes

17:55 <fALSO> without them i dont get any output on my ultra wide monitor lol

17:55 <heatfanjohn> My issue now is that I don't get any messages logged to the console, journal or dmesg when I load sun4i-drm

17:56 <fALSO> maybe it was already loaded ?

17:56 <fALSO> check lsmod

17:57 <anarsoul|2> darn, it's not there yet :(

17:58 <anarsoul|2> probably not pulled yet?

17:58 <fALSO> modprobe sun4i-drm doesnt do anything ?

17:59 <anarsoul|2> heatfanjohn: probably because your dtb doesn't have display nodes

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18:20 <heatfanjohn_> Here's the link to my patch for sun50i-a64.dtsi https://pastebin.com/5KTvrEin

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18:21 <anarsoul|2> heatfanjohn_: you also need to patch drivers

18:21 <anarsoul|2> :)

18:21 <anarsoul|2> they don't have necessary compatibles in 4.18

18:21 <anarsoul|2> and probably missing some a64-specific code (I'm not sure)

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18:22 <heatfanjohn_> I was duplicating the h3 definitions for the a64 because the SUNXI wiki said that the A64 is the H3 but with 64 bit CPU

18:22 <heatfanjohn_> The GPU was supposed to be the same

18:23 <heatfanjohn_> To patch the drivers, do you mean the sun4i drivers?

18:23 <anarsoul|2> and dw-hdmi

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18:24 <anarsoul|2> see https://github.com/anarsoul/linux-2.6/tree/sunxi64-4.18

18:24 <anarsoul|2> it has working HDMI

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18:27 <jernej> heatfanjohn_: Don't take that statement so literally.

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18:27 <jernej> after all, A64 is meant for tablets and H3 for STBs.

18:29 <heatfanjohn_> Oh, the statement that the A64 is an H3 with different CPU ...

18:30 <jernej> yes

18:30 <heatfanjohn_> I guess not a lot of HDMI output on a tablet ... which begs to question how does a tablet render to the LCD display?

18:32 <heatfanjohn_> framebuffer-lcd maybe ...

18:32 <Kamilion> TMDS port direct to the display

18:33 <Kamilion> or some other direct-drive method that isn't using a tranceiver in the middle like hdmi

18:33 <Kamilion> MIPI, ETC

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18:54 <wens> jaganteki: no, just using bananapi,s070wv20-ct16 , even for mipi-dsi

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18:54 <wens> jailbox: the driver entry points for parallel/lvds panels and mipi-dsi are different

18:54 <wens> jailbox: oops

18:55 <wens> jaganteki: ^

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18:55 <wens> jaganteki: plus one can work out what interface should be used based on what device node the panel is connected to

18:55 <wens> jaganteki: that is mostly Rob's idea, but I like it

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19:11 <wens> smaeul: the nmi interrupt is interrupt 0 on the R_INTC, and the R_INTC is chained to the GIC, which is how we get the NMI in Linux

19:16 <heatfanjohn_> What are my options to run headless with A64 on 4.18? I'm told I need a DRM driver, but I can't find what to use? Trying to run Wayland with R6P2 blobs

19:25 <karlp> that's a different intepretation fo the word headless than I'm used to :)

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21:22 <anarsoul|2> MoeIcenowy: what's the reason of running LPDDR3 on Pinebook and Sopine at lower frequency (552 MHz) than on Pine64? (672 MHz)

21:25 <anarsoul|2> Pine64 uses DDR3, not LPDDR3 btw

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21:36 <smaeul> jernej: On Orange PI PC2, idle is 1.2W, suspend is 0.3W and poweroff is 0.15W

21:37 <smaeul> where suspend == ARISC-managed, with all CPUs off, but DRAM stil fully on

21:38 <smaeul> wens: I'm aware of that, but with firmware running on the ARISC, Linux can't be doing mmio to R_INTC

21:39 <smaeul> so there has to be an alternate way of getting the interrupt to Linux without chaining R_INTC

21:43 <anarsoul|2> smaeul: nice

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