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| author | Joe Lee <asmt.swfae@gmail.com> | 2018-02-12 15:24:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-15 20:36:19 +0300 |
| commit | bde0716d1f076e4c913c7946bcc858f71243c7a0 (patch) | |
| tree | 8a36f252fec553b89fa15e60a2e992c390bb3154 /drivers/usb/host/pci-quirks.h | |
| parent | 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (diff) | |
| download | linux-bde0716d1f076e4c913c7946bcc858f71243c7a0.tar.xz | |
xhci: workaround for AMD Promontory disabled ports wakeup
For AMD Promontory xHCI host, although you can disable USB ports in
BIOS settings, those ports will be enabled anyway after you remove a
device on that port and re-plug it in again. It's a known limitation of
the chip. As a workaround we can clear the PORT_WAKE_BITS.
[commit and code comment rephrasing -Mathias]
Signed-off-by: Joe Lee <asmt.swfae@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/pci-quirks.h')
| -rw-r--r-- | drivers/usb/host/pci-quirks.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h index b68dcb5dd0fd..4ca0d9b7e463 100644 --- a/drivers/usb/host/pci-quirks.h +++ b/drivers/usb/host/pci-quirks.h @@ -17,6 +17,7 @@ void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev); void usb_disable_xhci_ports(struct pci_dev *xhci_pdev); void sb800_prefetch(struct device *dev, int on); bool usb_xhci_needs_pci_reset(struct pci_dev *pdev); +bool usb_amd_pt_check_port(struct device *device, int port); #else struct pci_dev; static inline void usb_amd_quirk_pll_disable(void) {} @@ -25,6 +26,10 @@ static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {} static inline void usb_amd_dev_put(void) {} static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {} static inline void sb800_prefetch(struct device *dev, int on) {} +static inline bool usb_amd_pt_check_port(struct device *device, int port) +{ + return false; +} #endif /* CONFIG_USB_PCI */ #endif /* __LINUX_USB_PCI_QUIRKS_H */ |