diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-10 22:30:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-10 22:30:45 +0200 |
| commit | 8a1629c771b1a60bc6d73394d869fe69b13200dc (patch) | |
| tree | 12f68138d95b70d450ab418fdfb300ebdcd2f003 /drivers/usb/host/xhci-hub.c | |
| parent | USB: OTG: msm: Add PHY suspend support for MSM8960 (diff) | |
| parent | Linux 2.6.39-rc7 (diff) | |
| download | linux-8a1629c771b1a60bc6d73394d869fe69b13200dc.tar.xz linux-8a1629c771b1a60bc6d73394d869fe69b13200dc.zip | |
Merge branch 2.6.39-rc7 into usb-linus
This was needed to resolve a conflict in:
drivers/usb/host/isp1760-hcd.c
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/xhci-hub.c')
| -rw-r--r-- | drivers/usb/host/xhci-hub.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index e3ddc6a95afe..a56963736018 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -844,7 +844,7 @@ int xhci_bus_suspend(struct usb_hcd *hcd) if (t1 != t2) xhci_writel(xhci, t2, port_array[port_index]); - if (DEV_HIGHSPEED(t1)) { + if (hcd->speed != HCD_USB3) { /* enable remote wake up for USB 2.0 */ __le32 __iomem *addr; u32 tmp; @@ -933,6 +933,21 @@ int xhci_bus_resume(struct usb_hcd *hcd) temp |= PORT_LINK_STROBE | XDEV_U0; xhci_writel(xhci, temp, port_array[port_index]); } + /* wait for the port to enter U0 and report port link + * state change. + */ + spin_unlock_irqrestore(&xhci->lock, flags); + msleep(20); + spin_lock_irqsave(&xhci->lock, flags); + + /* Clear PLC */ + temp = xhci_readl(xhci, port_array[port_index]); + if (temp & PORT_PLC) { + temp = xhci_port_state_to_neutral(temp); + temp |= PORT_PLC; + xhci_writel(xhci, temp, port_array[port_index]); + } + slot_id = xhci_find_slot_id_by_port(hcd, xhci, port_index + 1); if (slot_id) @@ -940,7 +955,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) } else xhci_writel(xhci, temp, port_array[port_index]); - if (DEV_HIGHSPEED(temp)) { + if (hcd->speed != HCD_USB3) { /* disable remote wake up for USB 2.0 */ __le32 __iomem *addr; u32 tmp; |