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| author | Boris Todorov <boris.st.todorov@gmail.com> | 2011-07-11 11:03:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-08-08 21:34:47 +0200 |
| commit | 77636c86a600b83de01719efad83567e46d7e8ce (patch) | |
| tree | 22a1643e71dd0c2fc43fde65e9ee211635637002 | |
| parent | USB: ftdi_sio: fix minor typo in get_ftdi_divisor (diff) | |
| download | linux-77636c86a600b83de01719efad83567e46d7e8ce.tar.xz linux-77636c86a600b83de01719efad83567e46d7e8ce.zip | |
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: Boris Todorov <boris.st.todorov@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 12 |
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; |