Re: [PATCH v2 0/2] Use PSCI OS initiated mode for sc7280

[Sudeep Holla]

On Thu, Mar 30, 2023 at 02:12:48PM +0530, Maulik Shah wrote:
> Changes in v2:
> - Add new change to Move enabling OSI mode after power domains creation
> - Fix compatible string to domains-idle-states for cluster idle state.
> - Update cover letter with some more details on OSI and PC mode comparision
> 
> The dependency [2] is now merged in trustedfirmware project.
> 
> Stats comparision between OSI and PC mode are captured at [3] with usecase
> details, where during multiple CPUs online the residency in cluster idle
> state is better with OSI and also inline with single CPU mode. In PC mode
> with multiple CPUs cluster idle state residency is dropping compare to
> single CPU mode.
> 
> Recording of this meeting is also available at [4].
> 
> This change adds power-domains for cpuidle states to use PSCI OS
> initiated mode for sc7280.
> 
> This change depends on external project changes [1] & [2] which are
> under review/discussion to add PSCI os-initiated support in Arm Trusted
> Firmware.
>

I will wait for your response to understand the issue in 1/2. If it is
firmware issue, I prefer we fix it in the firmware and no quirks or work
around for this in the kernel while it is still fresh out of oven.

-- 
Regards,
Sudeep