Ulf Hansson <ulf.hansson@xxxxxxxxxx> writes: > [...] > >> >> 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... :-) All you'd need to read from DT would be the device-specific ID for TI-SCI, and that could be done at bind time with a notifier. The, in that same notifier, if a TI-SCI ID exists, it would get added to the pm_domain. Anyways, your original proposal is much preferred if it can work. I'm just throwing out another option because I really don't like one genpd per device. Kevin -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
