[FOR DISCUSSION 0/9] Dove PMU support

[Rafael J. Wysocki]

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.

Rafael