diff options
Diffstat (limited to 'drivers/usb/host/xhci-hub.c')
| -rw-r--r-- | drivers/usb/host/xhci-hub.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 9992fbfec85..1ad6bc1951c 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -732,9 +732,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* Set the U1 and U2 exit latencies. */ memcpy(buf, &usb_bos_descriptor, USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE); - temp = readl(&xhci->cap_regs->hcs_params3); - buf[12] = HCS_U1_LATENCY(temp); - put_unaligned_le16(HCS_U2_LATENCY(temp), &buf[13]); + if ((xhci->quirks & XHCI_LPM_SUPPORT)) { + temp = readl(&xhci->cap_regs->hcs_params3); + buf[12] = HCS_U1_LATENCY(temp); + put_unaligned_le16(HCS_U2_LATENCY(temp), &buf[13]); + } /* Indicate whether the host has LTM support. */ temp = readl(&xhci->cap_regs->hcc_params); |