On Wed, Nov 27, 2019 at 01:38:36PM +0800, Daniel Drake wrote: > On Asus UX434DA (AMD Ryzen7 3700U) and Asus X512DK (AMD Ryzen5 3500U), > the XHCI controller fails to resume from runtime suspend or s2idle, > and USB becomes unusable from that point. > > xhci_hcd 0000:03:00.4: Refused to change power state, currently in D3 > xhci_hcd 0000:03:00.4: enabling device (0000 -> 0002) > xhci_hcd 0000:03:00.4: WARN: xHC restore state timeout > xhci_hcd 0000:03:00.4: PCI post-resume error -110! > xhci_hcd 0000:03:00.4: HC died; cleaning up > > During suspend, a transition to D3cold is attempted, however the affected > platforms do not seem to cut the power to the PCI device when in this > state, so the device stays in D3hot. > > Upon resume, the D3hot-to-D0 transition is successful only if the D3 delay > is increased to 20ms. The transition failure does not appear to be > detectable as a CRS condition. Add a PCI quirk to increase the delay on the > affected hardware. > > Link: https://bugzilla.kernel.org/show_bug.cgi?id=205587 > Link: http://lkml.kernel.org/r/CAD8Lp47Vh69gQjROYG69=waJgL7hs1PwnLonL9+27S_TcRhixA@xxxxxxxxxxxxxx > Signed-off-by: Daniel Drake <drake@xxxxxxxxxxxx> Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
