<Net147>
wens: I do find the terminology used in the DT a bit confusing. it may have been clearer if tcon0 and tcon1 in the DT were called lcdc0 and lcdc1. in A31 user manual, TCON0 and TCON1 refers to channel 0 and channel 1 of the LCDC.
<Net147>
mripard: do you think tcon0/tcon1 in the DT should have been called lcdc0/lcdc1?
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<wens>
Net147: it doesn't help that allwinner uses the term interchangeably
<wens>
luoyi_: sounds like your dac might be interpreting the i2s stream incorrectly
<luoyi_>
wens: you mean the problem is with dac ?
<wens>
luoyi_: both sides need to agree on the format, something ASOC should handle for you if the drivers are properly written
<luoyi_>
dac is a es9023
<wens>
luoyi_: the dac also needs to know there are 2 samples per cycle, and map to left/right channels
<luoyi_>
2 samples per cycle <----- looks like the lrck take care of it
<wens>
I don't see a driver for that one
<luoyi_>
es9023 is just like a pcm5102
<luoyi_>
OK. let me try to exchange the dac and see the result
<wens>
there's also a mode select in the H3's I2S block
<luoyi_>
wens: wow
<luoyi_>
you are so right
<wens>
the block is much more complicated as it supports not just I2S but also PCM and TDM
<luoyi_>
wens: after I change the dac to pcm5102, the left & right channel work correctly now
<wens>
:)
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<luoyi_>
wens: can I clean the code and try to mainline the i2s driver in 4.13 ?
<wens>
what do you mean
<wens>
luoyi_: codekipper is already working on it
<luoyi_>
OK.
<luoyi_>
my work is just based on codekipper's , and I doesn't see code update for some time
<wens>
luoyi_: he just sent a patch series 3 days ago?!
<wens>
have you tried that?
<luoyi_>
no, I don't see that
<luoyi_>
the mail list ?
<wens>
yes
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<ElBarto>
MoeIcenowy: ah thanks, didn't know about dl.linux-sunxi.org
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<ElBarto>
mripard: beh, I feel stupid to not even test this channel :)
<Putti>
Net147, okay. I was thinking if the code will be used by other allwinner chips then maybe they can have more than two tcons and it would be useful not to have that restriction
<Net147>
Putti: it won't. the mux function is for sun7i only.
<Net147>
Putti: it is only called for "allwinner,sun7i-a20-display-engine" compatible in tcon
<Putti>
alright
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<Net147>
just trying to get my head around configuring the outputs with DRM. by default /dev/fb0 is set up for all outputs in mirrored mode.
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<wens>
Net147: oh right... I had that fixed for A31