Currently, if PM is disabled in the kernel then so is PM_GENERIC_DOMAINS. Although this makes sense, I can see a scenario where having minimal genpd support could be advantageous. I am looking at enabling genpd for Tegra and ideally we would populate the power domains when the platform device is probed for the power management controller (PMC) as this device contains the registers for enabling the power domains. This works fine for the case where PM is enabled, but I am concerned about the case where we don't have PM enabled in the kernel. In this case, because domains are not populated early during the boot process, I am concerned that there is a chance for a device dependent on a power domain to be probed before the PMC device has been probed and had chance to turn on any power domains. Obviously, we could try and play with the ordering of devices, but it seems to me that even if PM is not enabled, it would still be nice to register power domains with the kernel and allow devices to attach to them and only probe the device if they are powered. Does this sound reasonable or is there a better approach? Cheers Jon -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
