On Wed, 2012-09-19 at 16:03 +0800, Aaron Lu wrote: > Hi James, > > May I know if this patchset will enter v3.7? Sigh, well, I was hoping to persuade the PM people to sort this out first. The first observation is that all this looks to be too specific. ZPO may be ACPI specific, but the property it abstracts: whether the particular device is powered off or not is generic and probably should be known at the generic PM level. Nothing actually really cares about how we power off the device until you get all the way down to the ACPI controller. I think we could do this with a couple of flags sitting inside struct device itself: one for pm state and capabilities defined at a generic level and one for device specific pm state. The latter would be for things like the door lock information which is very specific to CDs (although not specific to SCSI CDs). Alternatively, even if we can't use these capabilities at the generic pm level, we still need an internal state set of flags because power state stuff traverses the stack and struct device is the only universal object in that stack. So I definitely think all of the sdev flags should become either generic or specific flags in device. James -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
