diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2018-05-21 15:39:54 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-24 18:03:08 +0200 |
| commit | ffd4b4fc0b9a1526b64240676d309506b2d5eceb (patch) | |
| tree | 37284cf5942cdcd852116aaef3d6da97bad299d4 /drivers/usb/host/xhci-hub.c | |
| parent | xhci: set hcd pointers for xhci usb2 and usb3 roothub structures (diff) | |
| download | linux-ffd4b4fc0b9a1526b64240676d309506b2d5eceb.tar.xz linux-ffd4b4fc0b9a1526b64240676d309506b2d5eceb.zip | |
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>
Diffstat (limited to 'drivers/usb/host/xhci-hub.c')
| -rw-r--r-- | drivers/usb/host/xhci-hub.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 32cd52ca8318..b6fd26fa7faf 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -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; |