Re: [PATCH] usb: xhci: Simplify clearing the Event Interrupt bit

[Michal Pecio]

On Fri, 20 Mar 2026 21:18:09 +0100, Michal Pecio wrote:
> Several other cards (VL805, FL1100, uPD720202, ASM1142, ASM3142) wake
> from s2idle but not S3, including with a keyboard.
> 
> No difference if this patch is reverted, no difference if PCD is
> explicitly cleared in xhci_suspend(). And same problem in Windows.
> Looks like a HW deficiency in those cards.

Actually it's quite obvious: I know for sure that some of them derive
Vbus from the 12V rail, and chances are that the others also do.

Now I'm surprised that NEC and Etron cards bothered to make it work.
Looks like PCIe cards aren't the best option for testing suspend.