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authorTomi Valkeinen <tomi.valkeinen@ti.com>2012-03-06 06:20:31 -0500
committerTomi Valkeinen <tomi.valkeinen@ti.com>2012-03-06 06:20:31 -0500
commit0ba86d7edea1f9f2d9497c31200910263e8b4128 (patch)
tree387f713e1afdd181e92699dcaa5fa3d45b30c75b /drivers/usb/core/hub.c
parent973b659cbf2604b0b52829c224f6064d64118818 (diff)
parent192cfd58774b4d17b2fe8bdc77d89c2ef4e0591d (diff)
Merge commit 'v3.3-rc6'
Merge v3.3-rc6 to get the latest DSS and OMAP arch fixes. Conflicts: arch/arm/mach-omap1/board-innovator.c drivers/video/omap2/dss/apply.c
Diffstat (limited to 'drivers/usb/core/hub.c')
-rw-r--r--drivers/usb/core/hub.c30
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index a0613d8f9be7..265c2f675d04 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -705,10 +705,26 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
705 if (type == HUB_INIT3) 705 if (type == HUB_INIT3)
706 goto init3; 706 goto init3;
707 707
708 /* After a resume, port power should still be on. 708 /* The superspeed hub except for root hub has to use Hub Depth
709 * value as an offset into the route string to locate the bits
710 * it uses to determine the downstream port number. So hub driver
711 * should send a set hub depth request to superspeed hub after
712 * the superspeed hub is set configuration in initialization or
713 * reset procedure.
714 *
715 * After a resume, port power should still be on.
709 * For any other type of activation, turn it on. 716 * For any other type of activation, turn it on.
710 */ 717 */
711 if (type != HUB_RESUME) { 718 if (type != HUB_RESUME) {
719 if (hdev->parent && hub_is_superspeed(hdev)) {
720 ret = usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
721 HUB_SET_DEPTH, USB_RT_HUB,
722 hdev->level - 1, 0, NULL, 0,
723 USB_CTRL_SET_TIMEOUT);
724 if (ret < 0)
725 dev_err(hub->intfdev,
726 "set hub depth failed\n");
727 }
712 728
713 /* Speed up system boot by using a delayed_work for the 729 /* Speed up system boot by using a delayed_work for the
714 * hub's initial power-up delays. This is pretty awkward 730 * hub's initial power-up delays. This is pretty awkward
@@ -987,18 +1003,6 @@ static int hub_configure(struct usb_hub *hub,
987 goto fail; 1003 goto fail;
988 } 1004 }
989 1005
990 if (hub_is_superspeed(hdev) && (hdev->parent != NULL)) {
991 ret = usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
992 HUB_SET_DEPTH, USB_RT_HUB,
993 hdev->level - 1, 0, NULL, 0,
994 USB_CTRL_SET_TIMEOUT);
995
996 if (ret < 0) {
997 message = "can't set hub depth";
998 goto fail;
999 }
1000 }
1001
1002 /* Request the entire hub descriptor. 1006 /* Request the entire hub descriptor.
1003 * hub->descriptor can handle USB_MAXCHILDREN ports, 1007 * hub->descriptor can handle USB_MAXCHILDREN ports,
1004 * but the hub can/will return fewer bytes here. 1008 * but the hub can/will return fewer bytes here.