@@ -2396,7 +2396,7 @@ xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir,
}
struct xhci_interrupter *
-xhci_create_secondary_interrupter(struct usb_hcd *hcd)
+xhci_create_secondary_interrupter(struct usb_hcd *hcd, int intr_num)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct xhci_interrupter *ir;
@@ -2411,15 +2411,15 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd)
return NULL;
spin_lock_irq(&xhci->lock);
-
/* Find available secondary interrupter, interrupter 0 is reserverd for primary */
for (i = 1; i < xhci->max_interrupters; i++) {
- if (xhci->interrupters[i] == NULL) {
- err = xhci_add_interrupter(xhci, ir, i);
- break;
+ if ((intr_num > 0 && i == intr_num) || intr_num <= 0) {
+ if (xhci->interrupters[i] == NULL) {
+ err = xhci_add_interrupter(xhci, ir, i);
+ break;
+ }
}
}
-
spin_unlock_irq(&xhci->lock);
if (!err) {
@@ -81,6 +81,6 @@ struct xhci_interrupter {
};
struct xhci_interrupter *
-xhci_create_secondary_interrupter(struct usb_hcd *hcd);
+xhci_create_secondary_interrupter(struct usb_hcd *hcd, int intr_num);
void xhci_remove_secondary_interrupter(struct usb_hcd *hcd, struct xhci_interrupter *ir);
#endif
Some clients may operate only on a specific XHCI interrupter instance. Allow for the associated class driver to request for the interrupter that it requires. Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> --- drivers/usb/host/xhci-mem.c | 12 ++++++------ include/linux/usb/xhci-intr.h | 2 +- 2 files changed, 7 insertions(+), 7 deletions(-)