Messages in this thread | | | Date | Wed, 15 Sep 2021 14:09:06 +0200 | Subject | Re: [PATCH] arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2 | From | Frieder Schrempf <> |
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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.
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