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Commit 77636c86 authored by Boris Todorov's avatar Boris Todorov Committed by Greg Kroah-Hartman
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USB: EHCI: Fix test mode sequence 



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: default avatarBoris Todorov <boris.st.todorov@gmail.com>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 1862cdd5

drivers/usb/host/ehci-hub.c

+12 −0
Original line number Diff line number Diff line
@@ -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;