redonkable/alistair23-linux
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USB: EHCI: Fix test mode sequence

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The sequence to put port in test mode is not complete.
According EHCI specification all enabled ports must be
put in suspend.

Signed-off-by: Boris Todorov <boris.st.todorov@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Boris Todorov 2011-07-11 12:03:33 +03:00 committed by Greg Kroah-Hartman
parent 1862cdd542
commit 77636c86a6
1 changed files with 12 additions and 0 deletions
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12
drivers/usb/host/ehci-hub.c
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@ -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;