ChanServ changed the topic of #linux-rockchip to: Rockchip development discussion | IRC log http://irclog.whitequark.org/linux-rockchip | Community GH https://github.com/linux-rockchip | Rockchip GH https://github.com/rockchip-linux | ML https://groups.google.com/group/linux-rockchip
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<eballetbo> hey, I'm trying to figure out why my display on a Samsung Chromebook Plus doesn't light on after a resume ...
<eballetbo> seems that fails with
<eballetbo> rockchip-dp ff970000.edp: failed to set bridge
<eballetbo> due
<eballetbo> rockchip-dp ff970000.edp: Input stream clock not detected.
<eballetbo> By chance, did anybody fixed this issue before?
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<maz> eballetbo: I'm chasing the same issue. there is at least two issues: the bridge driver has a race and explodes on resume (I have a patch for that), and it looks like some clocks/supplies are dead on resumt too.
<maz> resume*
<maz> I dont think that the messages you mention are related to the internal screen, but to the outgoing DP port...
<maz> (or just DP).
<eballetbo> when you say explode you mean a kernel panic?
<maz> eballetbo: yes.
<maz> eballetbo: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/commit/?h=hack/kevin&id=a349f9f43cd9774ca4d8a8bcee3994b7804ab474
<maz> eballetbo: the whole thing is asynchronous, and rely on the direction of the wind,,,
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<eballetbo> maz: oh, note that all the psr stuff was reworked if you use latest thierryE patches
<eballetbo> maz: I don't have this problem using linux-next + thierry patches
<eballetbo> maz: the psr worker was removed in this patch: https://patchwork.kernel.org/patch/10192721/
<maz> eballetbo: ah, good. that was terribly broken. are these patches heading for 4.16?
<eballetbo> maz: guess it's late for this merge window 4.16, so maybe for 4.17
<maz> eballetbo: yeah, they look pretty fresh...
<maz> eballetbo: another issue I'm looking at is that if you do a test suspend/resume, the backlight isn't properly restored.
<maz> eballetbo: you have to manually set it to 0, and restore it to another value.
<maz> eballetbo: you then get it back working. but that's not enough if you perform a real suspend/resume.
<maz> eballetbo: so there are at least two other bugs.
<eballetbo> maz: I'm also looking is the suspend/resume issue
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