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path: root/drivers/usb/host/ehci-hub.c
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Diffstat (limited to 'drivers/usb/host/ehci-hub.c')
-rw-r--r--drivers/usb/host/ehci-hub.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index bf2c8f65e1ae..e051b30c1847 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -1046,7 +1046,19 @@ static int ehci_hub_control (
if (!selector || selector > 5)
goto error;
ehci_quiesce(ehci);
+
+ /* Put all enabled ports into suspend */
+ while (ports--) {
+ u32 __iomem *sreg =
+ &ehci->regs->port_status[ports];
+
+ temp = ehci_readl(ehci, sreg) & ~PORT_RWC_BITS;
+ if (temp & PORT_PE)
+ ehci_writel(ehci, temp | PORT_SUSPEND,
+ sreg);
+ }
ehci_halt(ehci);
+ temp = ehci_readl(ehci, status_reg);
temp |= selector << 16;
ehci_writel(ehci, temp, status_reg);
break;