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H A D | acpi_powerres.c | diff 267647 Thu Jun 19 18:39:04 MDT 2014 jhb Trust the state of a power resource that get from a working _STA method instead of trying to cache it. Previously, we only trusted the state if we did not have a cached state. However, once a state was cached, the _STA method was always ignored. Specifically, once a power resource had been turned on once (e.g. during resume), the driver assumed it was always on even if _STA said it was off and never turned it back on. This prevented the power resource from being turned back on if a laptop was resumed twice, for example. To fix, just remove the cached state entirely and always use the results of _STA. The loops already skip any resources where _STA fails. Submitted by: trasz (initial patch to invoke _ON) MFC after: 1 week |
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