[FOR DISCUSSION 0/9] Dove PMU support
Rafael J. Wysocki
rjw at rjwysocki.net
Thu Mar 19 15:02:35 PDT 2015
On Thursday, March 19, 2015 10:59:20 PM Rafael J. Wysocki wrote:
> On Thursday, March 12, 2015 06:30:21 PM Russell King - ARM Linux wrote:
> > This is a re-posting of the patch set which I posted almost 10 months
> > ago to support the Dove PMU, with a few additional changes. This set
> > is based upon 3.19.
> >
> > In this set are:
> >
> > * two patches which Rafael originally acked, but there was indecision
> > last time around how to handle them due to potential conflicts with
> > work that Ulf was doing. These patches have been updated to apply
> > cleanly to 3.19. I don't know if people want to take these as
> > fixes to the PM domain code or not (hence why I'm posting this
> > series during the merge window - if it weren't for this, I'd hold
> > it off.)
> >
> > * what I regard as a fix to the PM domain code; as a result of a
> > previous commit, the PM domain code mismatches the runtime PM state,
> > which leads to the PM domain being unexpectedly left on. This patch
> > has been re-worked to try an alternative approach, syncing the PM
> > domain state with the runtime PM state after the probe has completed.
> >
> > * the addition of the core Dove PMU driver, which consists of a reset,
> > IRQ controller, and power domains. The reset and power domain code
> > has to be closely related due to the power up/down requirements of
> > the GPU/VPU subsystems needing to be performed atomically. (This
> > requirement prevents it using the MFD infrastructure, because we
> > would need to hold spinlocks while calling several different
> > sub-drivers.)
> >
> > * addition of the RTC interrupt, so we can now receive and act on
> > alarms generated by the Dove RTC.
> >
> > * addition of the DT descriptions for the GPU and VPU power domains.
> > These patches do not themselves add the DT descriptions for these
> > units, so these patches serve as illustrations how these should be
> > described.
> >
>
> I can apply patches [1-3/9] from this series if that helps.
I mean from the next version of it ([FOR DISCUSSION 0/10] Dove PMU support).
These patches to be precise:
https://patchwork.kernel.org/patch/6006991/
https://patchwork.kernel.org/patch/6007001/
https://patchwork.kernel.org/patch/6007021/
unless there are objectsions (which I haven't seen).
Rafael
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