Alexander Aring <alex.aring@xxxxxxxxx> writes: > This patch adds support for RPi several Power Domains and enable support > to enable the USB Power Domain when it's not enabled before. > > This patch based on Eric Anholt's patch to support Power Domains. He had > an issue about -EPROBE_DEFER inside the power domain subsystem, this > issue was solved by commit <311fa6a> ("PM / Domains: Return -EPROBE_DEFER > if we fail to init or turn-on domain"). [...] > +#define RPI_POWER_DOMAIN(_domain, _name) \ > + [_domain] = { \ Using _domain as the array index is going to create a sparsely filled array here, wasting memory. I'm not sure what the other domain numbers are for other domains to know if this is a big waste or not, but it's still a bit wasteful. In any case, AFAICT, it doesn't look like you need to have the array index match the domain number anyways since you're using container_of(). So I suggest just removing this array index part, and just creating them in arrary order. Then your _probe function isn't going to try to setup 3 non-enabled domains before it finally hits the USB domain. 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