14:13 <warpme> apritzel: curious your opinion: after update from 6.12.5 to 6.12.6 my t527/h728 devices stopped booting. Reason is: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/regulator?h=v6.12.6&id=10eb845a87193ef922cd002e0ff4f4759c1e918d But i'm not sure what values of ramp delay i need to add in dt to get booting back. Currently boot hangs on setting dcdc3 (dram vdd)....

20:54 <apritzel> warpme: what are the voltages, in your DT and Syterkit? X96QPro+ has DDR3L DRAM, which needs 1.35-1.5V

20:56 <apritzel> with the proper voltage set in Syterkit the kernel shouldn't touch the regulator

20:57 <apritzel> what are the messages before it hangs?

21:32 <loki666> warpme: I'm the author of this patch, and unless your device is using a axp717, it shouldn't have any impact

21:33 <loki666> if your device is using a axp717, it set the ramp_delay for dvfs, usually dram vdd is not affected by dvfs...

21:35 <loki666> on my device dcdc3 (also vdram) reg is a fixed regulator set to 1.1v

22:04 <apritzel> loki666 most A523 devices seem to use an AXP717, actually the Anbernic devices seem to be the odd ones from the H616 using that PMIC

22:07 <apritzel> so yes its DCDC3 on an AXP717 that's causing the problem,although I wonder why...

22:08 <apritzel> I guess the immediate hang goes away if we set the right voltage in both the DT and the bootloader, but it should not hang nevertheless

23:47 <loki666> yes on anbernic devices, u-boot and kernel dcdc3 are the sames

23:49 <loki666> but if A523 are using also the AXP717, I guess without that patch dvfs should also be broken... warpme can you revert that patch, and test dvfs using a dynamic cpu gov, or userspace and script that jump between lowest freq and highest freq

23:50 <apritzel> loki666 there is no Dvfs yet, we still lack the CPU clock - it's a separate clock unit (CCU) on this chip

23:51 <loki666> ah that explains