Hi Sarah, This is xHCI pm patchset v6. Changelog from v5: 1. Rebase on isoc and MSI-X patches. 2. Cleanup MSI-X in xhci_suspend() and re-setup MSI-X in xhci_resume(). This version has no big changes but in order to work with MSI-X patches, the suspend/resume functions need to be modified to handle the MSI-X/MSI. I have figured out that the xHC restore error in pci resume is a BIOS issue of my test platform. The BIOS reset the xHC during resume so it will always restore fail. Now xHC restore is OK on my platform, and the char devices conflict will not be triggered in S3 normal cases. I've tested following cases and all devices are working fine every time when system resumes: 1. Doing r/w operations to a USB3.0 HDD, enter S3 and resume for 10 times. 2. Doing r/w operations to a USB2.0 HDD, enter S3 and resume for 10 times. 3. Running a USB1.1 webcam connected through a USB2.0 hub, enter S3 and resume for 10 times. 4. Playing a USB1.1 speaker connected through a USB2.0 hub, enter S3 and resume for 10 times. Please test, thanks. PS: I have submitted a patch long ago to re-initialize the cmd_completion in xhci_configure_endpoint(). (commit 1d68064a7d80). I assume the completion (&xhci->addr_dev) in xhci_alloc_dev() and xhci_address_device() also needs to be re-initialized. What's your opinion? Thanks, Andiry -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
