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authorSean Paul <seanpaul@chromium.org>2018-03-30 12:35:45 -0400
committerSean Paul <seanpaul@chromium.org>2018-03-30 12:35:45 -0400
commit83fd26c3f32afe38bb2ab8cc00e313ec5c2edbce (patch)
treeb2d2719c998bc2bcba99f2ecf2d164ee9b7ad75a /drivers/usb/host/xhci-hub.c
parent4165791d29f64e01860a064f3c649447dbac41c3 (diff)
parent694f54f680f7fd8e9561928fbfc537d9afbc3d79 (diff)
downloadlinux-83fd26c3f32afe38bb2ab8cc00e313ec5c2edbce.tar.bz2
Merge airlied/drm-next into drm-misc-next
Backmerging to pick up a fix from drm-misc-next-fixes. Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'drivers/usb/host/xhci-hub.c')
-rw-r--r--drivers/usb/host/xhci-hub.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 46d5e08f05f1..72ebbc908e19 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1224,17 +1224,17 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
temp = readl(port_array[wIndex]);
break;
}
-
- /* Software should not attempt to set
- * port link state above '3' (U3) and the port
- * must be enabled.
- */
- if ((temp & PORT_PE) == 0 ||
- (link_state > USB_SS_PORT_LS_U3)) {
- xhci_warn(xhci, "Cannot set link state.\n");
+ /* Port must be enabled */
+ if (!(temp & PORT_PE)) {
+ retval = -ENODEV;
+ break;
+ }
+ /* Can't set port link state above '3' (U3) */
+ if (link_state > USB_SS_PORT_LS_U3) {
+ xhci_warn(xhci, "Cannot set port %d link state %d\n",
+ wIndex, link_state);
goto error;
}
-
if (link_state == USB_SS_PORT_LS_U3) {
slot_id = xhci_find_slot_id_by_port(hcd, xhci,
wIndex + 1);
@@ -1522,6 +1522,13 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
t2 |= PORT_WKOC_E | PORT_WKCONN_E;
t2 &= ~PORT_WKDISC_E;
}
+
+ if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) &&
+ (hcd->speed < HCD_USB3)) {
+ if (usb_amd_pt_check_port(hcd->self.controller,
+ port_index))
+ t2 &= ~PORT_WAKE_BITS;
+ }
} else
t2 &= ~PORT_WAKE_BITS;