krzk changed the topic of #linux-exynos to: Samsung S3C24xx and S3C64xx planned deprecation and removal (see LKML) | Linux Samsung SoC Exynos | https://exynos.wiki.kernel.org | This channel is logged: https://libera.irclog.whitequark.org/linux-exynos
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<Rayyan> Viciouss: what SoCs are similar to 7870?
<Rayyan> i'm not sure what the naming scheme is
<krzk> Rayyan: nice question :) without the datasheet you cannot know. The generic architecture could point you to Exynos 7580 or 7570 (although this one has only one cluster)
<krzk> Rayyan: Against one we have in tree - 7885 - there is two years difference, so it is more likely they are different.
<krzk> Rayyan: timing (date of release) could point to Exynos 7420 which is partially supported, but 7420 was one of the earliest armv8 models, so later it could have been changed...
<krzk> Rayyan: one way is to download vendor sources from these and compare the DTS between each... quite a tedious work...
<Rayyan> i'm looking through the kernel sources right now
<Rayyan> the device i'm researching is j5y17lte
<Rayyan> (samsung galaxy j5 2017)
<Viciouss> yeah indeed this ist difficult to say, compairing specs on https://en.wikipedia.org/wiki/Exynos might help
<Viciouss> or at least give a clue
<krzk> The best support from ARMv8 Exynos in mainline has Exynos5433, but it was one of the earliest designs and it differs significantly. Simplifying - it's like a step between Exynos5420 and Exynos7420.
<Viciouss> could be the smaller brother of the 7880, pmos has a repo for this on the mainline page but still you would have to compare it to the vendor kernel
<Viciouss> the branch in the 7880 repo is called a5y17lte - sounds promising to me :-)
<Rayyan> since both a5 2017 and j5 2017 were released in the same year, it's likely they have similar hardware?
<Viciouss> I would at least start with this assumption and work my way through the vendor kernel and the pmos repo
<Viciouss> yes this one
<Viciouss> if you can verify that the code matches what you see in the 7870 vendor kernel or only needs minor tweaks, you can save a lot of work
<Rayyan> so what should i be comparing?
<Rayyan> exynos7780 and 7870 dtsi?
<Stricted> 7870 is compatible with 7880, ppl have booted 7880 kernels on 7870 in the past withour any issues
<Stricted> without*
<Rayyan> Stricted: thanks for the info! do you know if anyone has booted a mainline kernel on j5 2017 by any chance?
<Rayyan> or are you talking about vendor kernels?
<Stricted> vendor kernel
<Rayyan> ah