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| author | Boris Todorov <boris.st.todorov@gmail.com> | 2011-07-11 12:03:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:36:36 -0800 |
| commit | 00c37d53fdc0f671cc07228e0faf1938da741e68 (patch) | |
| tree | cef20c3fa82fed62836a2448fee5f7e90be1d457 /drivers/usb/host/ehci-hub.c | |
| parent | cfaef012006eddcba833b33cb7953a68b36869c6 (diff) | |
| download | kernel_samsung_smdk4412-00c37d53fdc0f671cc07228e0faf1938da741e68.zip kernel_samsung_smdk4412-00c37d53fdc0f671cc07228e0faf1938da741e68.tar.gz kernel_samsung_smdk4412-00c37d53fdc0f671cc07228e0faf1938da741e68.tar.bz2 | |
USB: EHCI: Fix test mode sequence
commit 77636c86a600b83de01719efad83567e46d7e8ce upstream.
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>
Diffstat (limited to 'drivers/usb/host/ehci-hub.c')
| -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 0f3a724..f5d7fed 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -1120,7 +1120,19 @@ 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; |