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bde0716d1f
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>
35 lines
1.4 KiB
C
35 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LINUX_USB_PCI_QUIRKS_H
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#define __LINUX_USB_PCI_QUIRKS_H
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#ifdef CONFIG_USB_PCI
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void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
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int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
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int usb_amd_find_chipset_info(void);
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int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev);
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bool usb_amd_hang_symptom_quirk(void);
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bool usb_amd_prefetch_quirk(void);
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void usb_amd_dev_put(void);
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void usb_amd_quirk_pll_disable(void);
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void usb_amd_quirk_pll_enable(void);
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void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev);
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void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev);
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void usb_disable_xhci_ports(struct pci_dev *xhci_pdev);
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void sb800_prefetch(struct device *dev, int on);
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bool usb_xhci_needs_pci_reset(struct pci_dev *pdev);
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bool usb_amd_pt_check_port(struct device *device, int port);
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#else
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struct pci_dev;
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static inline void usb_amd_quirk_pll_disable(void) {}
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static inline void usb_amd_quirk_pll_enable(void) {}
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static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {}
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static inline void usb_amd_dev_put(void) {}
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static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {}
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static inline void sb800_prefetch(struct device *dev, int on) {}
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static inline bool usb_amd_pt_check_port(struct device *device, int port)
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{
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return false;
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}
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#endif /* CONFIG_USB_PCI */
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#endif /* __LINUX_USB_PCI_QUIRKS_H */
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