Re: [PATCH v1 0/2] Restore voltages before rebooting of NVIDIA Tegra SoCs

From: Dmitry Osipenko
Date: Sun May 16 2021 - 17:32:34 EST


15.05.2021 01:18, Dmitry Osipenko пишет:
> 15.05.2021 00:32, Michał Mirosław пишет:
>> On Tue, May 11, 2021 at 01:05:24AM +0300, Dmitry Osipenko wrote:
>>> Hi,
>>>
>>> Nikola Milosavljević reported that rebooting wasn't working properly on
>>> Asus Transformer TF101, which is Tegra20-based tablet device. We found
>>> that TF101 and some other devices have bootloader which doesn't re-initialize
>>> voltages properly on a reboot. The problem is resolved by ensuring that
>>> SoC voltages are at a levels that are suitable for the rebooting of the
>>> SoC before reboot happens. This series adds reboot handler to the Tegra
>>> regulator couplers, it bumps voltages on the reboot event.
>>
>> Which tree does this series apply to?
>
> It was made on top of linux-next, but it should apply to 5.13 as well.
> What conflict do you get?
>

I see where the problem is, there is no
tegra_soc_core_domain_state_synced() in upstream yet. I haven't rebased
patches properly, will be fixed in v2.