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Stanislaw Ledwon 8bea2bd37d usb: Add support for root hub port status CAS ... The host controller port status register supports CAS (Cold Attach Status) bit. This bit could be set when USB3.0 device is connected when system is in Sx state. When the system wakes to S0 this port status with CAS bit is reported and this port can't be used by any device. When CAS bit is set the port should be reset by warm reset. This was not supported by xhci driver. The issue was found when pendrive was connected to suspended platform. The link state of "Compliance Mode" was reported together with CAS bit. This link state was also not supported by xhci and core/hub.c. The CAS bit is defined only for xhci root hub port and it is not supported on regular hubs. The link status is used to force warm reset on port. Make the USB core issue a warm reset when port is in ether the 'inactive' or 'compliance mode'. Change the xHCI driver to report 'compliance mode' when the CAS is set. This force warm reset on the root hub port. This patch should be backported to stable kernels as old as 3.2, that contain the commit 10d674a82e "USB: When hot reset for USB3 fails, try warm reset." Signed-off-by: Stanislaw Ledwon <staszek.ledwon@linux.intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Acked-by: Andiry Xu <andiry.xu@amd.com> Cc: stable@vger.kernel.org		13 years ago
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Kconfig	usb: Kconfig: remove unneeded default value	13 years ago
Makefile	usb: Bind devices to ACPI devices when possible	13 years ago
buffer.c	USB: Core: Fix minor coding style issues	14 years ago
config.c	usbcore: get BOS descriptor set	14 years ago
devices.c	Revert "usb: move struct usb_device->children to struct usb_hub_port->child"	13 years ago
devio.c	USB: Remove races in devio.c	13 years ago
driver.c	USB: Disable USB 3.0 LPM in critical sections.	13 years ago
endpoint.c	USB: use usb_endpoint_maxp() instead of le16_to_cpu()	14 years ago
file.c	USB: file.c: remove dbg() usage	13 years ago
generic.c	USB: accept RNDIS configs if there's no alternative	15 years ago
hcd-pci.c	USB: add NO_D3_DURING_SLEEP flag and revert 151b612847	13 years ago
hcd.c	USB: Make sure to fetch the BOS desc for roothubs.	13 years ago
hub.c	usb: Add support for root hub port status CAS	13 years ago
message.c	USB: fix gathering of interface associations	13 years ago
notify.c	usb: Add export.h for EXPORT_SYMBOL/THIS_MODULE where needed	13 years ago
otg_whitelist.h	…
quirks.c	usb: add USB_QUIRK_RESET_RESUME for M-Audio 88es	13 years ago
sysfs.c	sysfs: get rid of some lockdep false positives	13 years ago
urb.c	usbhid: prevent deadlock during timeout	13 years ago
usb-acpi.c	usb: Set device removable state based on ACPI USB data	13 years ago
usb.c	usb: fix breakage on systems without ACPI	13 years ago
usb.h	usb: Bind devices to ACPI devices when possible	13 years ago