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Recommended >> Operating Conditions, Table 3-2, Ambient Operating Temperature. > > Indeed, which is why I specifically wrote "specifying the same upper > limit", because having a lower negative temperature limit could hardly > put the RK3588J in danger of overheating or running hotter. :) > """ despite the two SoC variant datasheets specifying the same upper limit for the allowed temperature for both variants """ is incorrect. The whole range is different, yes it's only a 5°C difference for the upper limit, but they still are different. >>> specified much lower for the RK3588J variant. [1][2] >>> >>> To be on the safe side and to ensure maximum longevity of the RK3588J >>> SoCs, >>> only the CPU and GPU OPPs that are declared by the vendor to be >>> always safe >>> for this SoC variant may be provided.  As explained by the vendor [3] >>> and >>> according to its datasheet, [2] the RK3588J variant can actually run >>> safely >>> at higher CPU and GPU OPPs as well, but only when not enjoying the >>> assumed >>> extended temperature range that the RK3588J, as an SoC variant targeted >> >> "only when not enjoying the assumed extended temperature range" is >> extrapolated by me/us and not confirmed by Rockchip themselves. I've >> asked for a statement on what "industrial environment" they specify in >> the Normal Mode explanation means since it's the only time they use >> the term. I've yet to receive an answer. The only thing Rockchip in >> their datasheet is that the overdrive mode will shorten lifetime when >> used for a long time, especially in high temperature conditions. It's >> not clear whether we can use the overdrive mode even within the RK3588 >> typical range of operation. > > True.  I'll see to rephrase the patch description a bit in the v2, > to avoid this kind of speculation.  I mean, perhaps the speculation > is right, but it hasn't been confirmed officially by Rockchip. > Speculation is fine, but it should be worded as such. [...] >>> The provided RK3588J CPU OPPs follow the slightly debatable "provide >>> only >>> the highest-frequency OPP from the same-voltage group" approach >>> that's been >> >> Interesting that we went for a different strategy for the GPU OPPs :) > > Good point, and I'm fully aware of that. :)  Actually, I'm rather > sure that omitting the additional CPU OPPs does no good to us, but > I didn't want to argue about that when they were dropped originally, > before I can have some hard numbers to prove it in a repeatable way. > I assume we'll have some patch in the future with those added and those hard numbers you're talking about, so looking forward to seeing it on the ML :) [...] >>> Helped-by: Quentin Schulz >> >> Reported-by/Suggested-by? >> >> I don't see Helped-by in >> https://eur02.safelinks.protection.outlook.com/? >> url=https%3A%2F%2Fwww.kernel.org%2Fdoc%2Fhtml%2Flatest%2Fprocess%2Fsubmitting-patches.html%23using-reported-by-tested-by-reviewed-by-suggested-by-and-fixes&data=05%7C02%7Cquentin.schulz%40cherry.de%7Cdc754791b6844506b11c08dd69f444a7%7C5e0e1b5221b54e7b83bb514ec460677e%7C0%7C0%7C638783220330058516%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=4bv9pUh6aSD0GVLJ4Zvuyvox1K0xxwf83KXX86QsvMo%3D&reserved=0 >> >> I see 2496b2aaacf137250f4ca449f465e2cadaabb0e8 got the Helped-by >> replaced by a Suggested-by for example, but I see other patches with >> Helped-by... if that is a standard trailer for kernel patches, then >> maybe we should add it to that doc? > > Actually, I already tried to get the Helped-by tag added to the > kernel documentation, by submitting a small patch series. [*] > Unfortunately, it got rejected. :/ > > However, Heiko accepts Helped-by tags and nobody higher up the > tree seems to complain, so we should be fine. :)  It isn't the > case with all maintainers, though. > > [*] https://eur02.safelinks.protection.outlook.com/? > url=https%3A%2F%2Flore.kernel.org%2Fall%2Fcover.1730874296.git.dsimic%40manjaro.org%2FT%2F%23u&data=05%7C02%7Cquentin.schulz%40cherry.de%7Cdc754791b6844506b11c08dd69f444a7%7C5e0e1b5221b54e7b83bb514ec460677e%7C0%7C0%7C638783220330070422%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=3dZgSG%2FBT6f%2Ffqs7D30HvEl18SzqYPwNeUGWBZfMAqM%3D&reserved=0 > Are you trying to up the numbers of Helped-by in commit logs to make it a reasonable request to add the trailer in the documentation :) ? Cheers, Quentin