Commit ffd4b4fc authored by Mathias Nyman's avatar Mathias Nyman Committed by Greg Kroah-Hartman
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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: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9ea95ecc

drivers/usb/host/xhci-hub.c

+9 −0
Original line number 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;

}



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)

{

	__le32 __iomem **port_array;

drivers/usb/host/xhci.h

+2 −0
Original line number 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);

int xhci_hub_status_data(struct usb_hcd *hcd, char *buf);

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);



#ifdef CONFIG_PM