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SubjectRe: [PATCH v2 1/2] PM / Domains: Add GENPD_FLAG_NO_SUSPEND/RESUME flags
On 2020-09-22 01:26, Stephen Boyd wrote:
> Quoting Rafael J. Wysocki (2020-09-21 09:18:17)
>> On Fri, Aug 21, 2020 at 10:49 PM Sibi Sankar <sibis@codeaurora.org>
>> wrote:
>> >
>> > Add GENPD_FLAG_NO_SUSPEND/RESUME flags to instruct genpd to keep the
>> > status of the PM domain unaltered during suspend/resume respectively.
>> > The flags are aimed at power domains coupled to co-processors which
>> > enter low-power modes independent to that of the application processor.
>> >
>> > Specifically the flags are to be used by the power domains exposed
>> > by the AOSS QMP driver linked to modem, adsp, cdsp remoteprocs. These
>> > power domains are used to notify the Always on Subsystem (AOSS) that
>> > a particular co-processor is up. AOSS uses this information to wait
>> > for the co-processors to suspend before starting its sleep sequence.
>> > The application processor powers off these power domains only if the
>> > co-processor has crashed or powered off and remains unaltered during
>> > system suspend/resume.
>> >
>> > Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
>>
>> Applied with the Ulf's R-by along with the [2/2] as 5.10 material,
>> thanks!
>>
>
> There was a bunch of discussion on this patch series and I thought the
> consensus was to not apply these patches and instead implement a custom
> qcom specific API that does this instead.

https://lore.kernel.org/lkml/20200913034603.GV3715@yoga/

The power domains which were targeted
to use the flags will be replaced by
custom qcom specific API. So let's not
pick up the patch series.


--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.

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