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Commit ffd4b4fc authored May 21, 2018 by Mathias Nyman Committed by Greg Kroah-Hartman May 24, 2018

xhci: Add helper to get xhci roothub from hcd



quick way to get the xhci roothub and thus all the ports
belonging to a certain hcd

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 9ea95ecc

drivers/usb/host/xhci-hub.c

+9 −0

Original line number	Original line	Diff line number	Diff line
	@@ -554,6 +554,15 @@ static int xhci_get_ports(struct usb_hcd hcd, __le32 __iomem **port_array)
	return max_ports;		return max_ports;
	}		}

			struct xhci_hub xhci_get_rhub(struct usb_hcd hcd)
			{
			struct xhci_hcd *xhci = hcd_to_xhci(hcd);

			if (hcd->speed >= HCD_USB3)
			return &xhci->usb3_rhub;
			return &xhci->usb2_rhub;
			}

	static __le32 __iomem xhci_get_port_io_addr(struct usb_hcd hcd, int index)		static __le32 __iomem xhci_get_port_io_addr(struct usb_hcd hcd, int index)
	{		{
	__le32 __iomem **port_array;		__le32 __iomem **port_array;

drivers/usb/host/xhci.h

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -2110,6 +2110,8 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex,
	char *buf, u16 wLength);		char *buf, u16 wLength);
	int xhci_hub_status_data(struct usb_hcd hcd, char buf);		int xhci_hub_status_data(struct usb_hcd hcd, char buf);
	int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1);		int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1);
			struct xhci_hub xhci_get_rhub(struct usb_hcd hcd);

	void xhci_hc_died(struct xhci_hcd *xhci);		void xhci_hc_died(struct xhci_hcd *xhci);

	#ifdef CONFIG_PM		#ifdef CONFIG_PM