Re: [PATCH] arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2

[Frieder Schrempf]

On 15.09.21 14:05, Michael Walle wrote:
> Am 2021-09-15 14:03, schrieb Heiko Thiery:
>> The buck2 output of the PMIC is the VDD core voltage of the cpu.
>> Switching off this will poweroff the CPU. Add the 'regulator-always-on'
>> property to avoid this.
> 
> Mh, have this ever worked? Is there a commit which introduced a regression?

Yes, this did work before, even without 'regulator-always-on'. I
currently don't understand why this is needed. The regulator is
referenced in the CPU nodes as 'cpu-supply'. This should be enough to
not disable it as long as the CPU is up.