diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2018-05-21 16:39:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-24 18:03:08 +0200 |
| commit | ffd4b4fc0b9a1526b64240676d309506b2d5eceb (patch) | |
| tree | 37284cf5942cdcd852116aaef3d6da97bad299d4 /drivers/usb/host | |
| parent | 9ea95ecc7ffd338a62972ddd6b0ac46bdc5e7d49 (diff) | |
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')
| -rw-r--r-- | drivers/usb/host/xhci-hub.c | 9 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.h | 2 |
2 files changed, 11 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; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 38aa8a6777a8..cdf8e1adc06f 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -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 |