[PATCH 3/3] soc: ti: Add ti_sci_pm_domains driver
Ulf Hansson
ulf.hansson at linaro.org
Thu Sep 8 02:27:52 PDT 2016
[...]
>
> One more idea...
>
> Since you don't really have a domain (a group of devices), what you
> really have is each device having an independent power switch, so as Ulf
> suggested, what you really need is for all the devices to share the same
> set of runtime PM callbacks that call SCI. The only difference is the
> unique ID.
>
> Rather than using all of genpd, you could also just use a pm_domain
> which is what genpd is built on top of (and also omap_device, which
> you're probably familiar with also.)
Even if this would work as well, the downside would be that you need
to re-invent the parts related to the DT parsing, the probing/removal
and attaching/detaching of the device to the PM domain.
You probably don't want to go there... :-)
>
> That would allow you to keep the drivers completely generic, yet share
> all the SCI specific "domain" code inside a pm_domain.
>
> Kevin
Kind regards
Uffe
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