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Currently we have valid flag to represent if this ACPI device power state is valid. A device power state is valid does not necessarily mean we, as OSPM, has a mean to put the device into that power state, e.g. D3 cold is always a valid power state for any ACPI device, but if there is no _PS3 or _PRx for this device, we can't really put that device into D3 cold power state. The same is true for D0 power state. So here comes the os_accessible flag, which is only set if the device has provided us the required means to put it into that power state, e.g. if we have _PS3 or _PRx, we can put the device into D3 cold state and thus, D3 cold power state's os_accessible flag will be set in this case. And a new wrapper inline function is added to be used to check if firmware has provided us a way to power off the device during runtime. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| keys | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| rxrpc | ||
| scsi | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| video | ||
| xen | ||
| Kbuild | ||