<anarsoul>
thanks a lot for fb.lockless_register_fb=1 hint
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<anarsoul>
it crashes in sun4i_tcon0_mode_set_rgb() because tcon->panel is null
<anarsoul>
and culprit is 2c17a4368aad2b88b68e4390c819e226cf320f70
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<anarsoul>
all in all, I reverted 2c17a436, applied wens's patch to add 5% tolerance for dot clock freq check. Now LCD on pinebook works for me on 4.17-rc5
<beeble>
R0b0t1: on the h6 the usb3 controller is host only
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<R0b0t1>
That is unfortunate
<R0b0t1>
I have two exynos boards. I do not like them because they are closed. But, seeing as the SoC was meant for phones I thought I might have a chance of doing device mode USB 3 with them. The newer one with better support has the controller behind a hub on the circuit, unfortunately.
<R0b0t1>
The older one might work.
<R0b0t1>
But since it's closed I may be depending on 1 guy.
<R0b0t1>
I have a Cypress FX3 board which is a parallel to USB3 interface but I'm not sure it would be easy to glue to an Allwinner part
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<R0b0t1>
I can program the FX3 just fine but I'm not sure how easy a driver for parallel XHCI would be
<naggety>
jernej: I saw your message about TVIN documentation in R40 manual. Thanks, I will try to check if they are the same registers than in A20 looking to the driver.
<beeble>
R0b0t1: interfacing the fx3 would be more then a challenge and you would not gain any speed improvements
<beeble>
R0b0t1: how about just using a device that has a usb3 dual role controller? :)
<R0b0t1>
Do you know of any
<R0b0t1>
I've tried what I could think of (mainly searching for gadget driver stuff) but it's not something that is advertised
<beeble>
rk3399 for example if it can be something other then allwinner
<R0b0t1>
That'd be fine
<R0b0t1>
rk3399 only, the older ones do not do device mode?
<beeble>
talking about socs that are open enough. rk3328 has only usb3 host. 3288 is 2.0 only
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<R0b0t1>
Not trying to be picky, the "older" ones are cheaper
<R0b0t1>
Dang
<R0b0t1>
beeble: Can you recommend a manufacturer?
<beeble>
select two: cheap, open, functionality
<R0b0t1>
Xunlong Software Co. Ltd. is out of stock otherwise I'd have tried that
<R0b0t1>
Open first, then cheap
<R0b0t1>
Then open and functionality
<beeble>
then you are out of luck :)
<beeble>
i will not recommend any manufacturers as i'm biased
<wens>
lol
<R0b0t1>
What do you mean beeble
<R0b0t1>
I don't have anything to go on, really
<wens>
R0b0t1: he works for a board vendor, hence is biased
<R0b0t1>
Well since he said that it's above board now
<R0b0t1>
I'd still like a recommendation unless he thinks I am going to go find him and/or send him flowers
<icenowy[m]>
beeble: Allwinner H6 USB controller may do peripheral
<icenowy[m]>
but AW says it's not tested
<beeble>
icenowy[m]: i see. my statement was based on the datasheet
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<R0b0t1>
willmore: Hardkernel Odroid XU4 and XU.
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<icenowy[m]>
beeble: maybe there will be someone worth to try it
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<webuser5224>
Hello everyone!
<webuser5224>
I have a question: can I put my SBC (OPi PC) into a low-power mode and still let it register an input from a sensor to wake it up, e. g. a PIR sensor?
<webuser5224>
I haven't worked with any sensors, yet, so any resource to read into would be nice, too! Thanks!
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<KotCzarny>
yes
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<webuser5224>
Would I have to power the sensor externally or are there modes where the pins are still active and only certain other components of the SBC are turned off to save power?
<webuser5224>
I'm just very confused
<KotCzarny>
how low power state are you aiming at?
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<webuser5224>
I want to run it from a battery, so I'd say as little power as possible, but I'm unsure about the best way to achieve that
<KotCzarny>
40-50mA in fake off mode, 100mA with linux running
<KotCzarny>
+ whatever your sensor eats
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<webuser5224>
That's the lowest I could go?
<KotCzarny>
with H3, yeah
<KotCzarny>
probably less with V3
<webuser5224>
And if I needed it to be a lot less, I'd have to look into a solution that completely turns the SBC off and on while not in use?
<KotCzarny>
yes
<KotCzarny>
arduino + some bistable relay probably
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<brianjaod>
Hey all, I have a burning question about Allwinner hardware/software development: how do I get normal development support docs, datasheets, design guides, app notes, dev kits, sample code, etc? I'm new to Allwinner, but have been doing embedded hardware/firmware development for 20 years and usually that type of info for different SoCs/MCUs is freely provided by the manufacturer to promote product development with their chips
<brianjaod>
But with Allwinner, it seems to be this crazy mystery and very little publicly available
<brianjaod>
What am I missing?
<brianjaod>
I'd LOVE some insight from you pros, thanks!
<KotCzarny>
that allwinner is low end of cheap
<KotCzarny>
and documentation is provided in the form of old source code
<KotCzarny>
:)
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<brianjaod>
haha, yeah, crazy!
<KotCzarny>
crappy source code at that, mind you
<brianjaod>
I don't get it though; don't they want to sell more chips?
<brianjaod>
And AT LEAST provide basic docs to allow development?
<KotCzarny>
but, linux-sunxi is a community of fine folks that got things in their hands and RE'd most things
<KotCzarny>
so your best bet is to go to linux-sunxi.org
<KotCzarny>
plenty of info there
<KotCzarny>
as for hardware dev, bad luck i guess
<brianjaod>
Yeah, I've been reading all through that sunxi wiki, but still have a TON of questions
<KotCzarny>
there are few open designs available though
<brianjaod>
Yeah, we're starting with the hardware design now, but it's nearly impossible
<brianjaod>
We're hoping to design our own custom V3 or V3s board for a custom type of camera
<brianjaod>
But don't even the Chinese engineers, that develop with Allwinner devices, don't even they need basic mfr support?
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<KotCzarny>
i suspect knowing chinese and having contacts helps
<brianjaod>
Hmm, it's so weird. I've already tried to contact Allwinner direcly, but still waiting for a response
<KotCzarny>
got an order for 10k chips or more? maybe they will talk then
<KotCzarny>
a bit
<brianjaod>
Anybody here have any experience with the V3 or V3s camera-related chips?
<brianjaod>
Would love some experienced input, and willing to pay
<KotCzarny>
maybe you could write to lichee pi maker
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<brianjaod>
Yeah, I'm reviewing the litchee pi github and forum stuff, but I haven't tried to contact them yet. Just saw a bunch of angry comments on Indiegogo about unfulfilled backers, etc
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<brianjaod>
KotCzarny, thanks for your reponses and help, much appreciated!
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