On Monday, June 16, 2014 3:21:55 pm Edward Tomasz Napierała wrote:
> Hi. Patch below should fix a problem where USB stops working after
> _second_ suspend/resume, which happens on various ThinkPad models.
> Please test, and report both success stories and failures. If nothing
> comes up, I'll commit it in a week or so.
Good find. Have you thought about a more generic fix for this wherein you
track power resources and flip them on during resume in ACPI before doing
DEVICE_RESUME() on the root bus?
Alternatively, this probably meshes well with Justin's work on multipass
suspend/resume in that ACPI buses (e.g. acpi_pci and acpi0 itself) should be
turning on any power sources associated with an ACPI device during the
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