Re: [PATCH v2 7/9] arm64: dts: qcom: msm8998: Add PSCI cpuidle low power states

[Niklas Cassel]

On Wed, Oct 02, 2019 at 11:19:50AM +0200, Niklas Cassel wrote:
> On Mon, Sep 30, 2019 at 04:20:15PM -0600, Jeffrey Hugo wrote:
> > Amit, the merged version of the below change causes a boot failure
> > (nasty hang, sometimes with RCU stalls) on the msm8998 laptops.  Oddly
> > enough, it seems to be resolved if I remove the cpu-idle-states
> > property from one of the cpu nodes.
> > 
> > I see no issues with the msm8998 MTP.
> 
> Hello Jeffrey, Amit,
> 
> If the PSCI idle states work properly on the msm8998 devboard (MTP),
> but causes crashes on msm8998 laptops, the only logical change is
> that the PSCI firmware is different between the two devices.

Since the msm8998 laptops boot using ACPI, perhaps these laptops
doesn't support PSCI/have any PSCI firmware at all.


Kind regards,
Niklas