usb: ohci-at91: Set RemoteWakeupConnected bit explicitly.

The reset value of RWC is 0, set RemoteWakeupConnected bit explicitly
before calling ohci_run, it also fixes the issue that the mass
storage stick connected wasn't suspended when the system suspend.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 5b5880c0ae1916d14c1ce997b8be9d3c2a9d3798..b38a228134df108d148037232126e815d9557a7b 100644 (file)
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -221,6 +221,12 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
        ohci->num_ports = board->ports;
        at91_start_hc(pdev);
 
+       /*
+        * The RemoteWakeupConnected bit has to be set explicitly
+        * before calling ohci_run. The reset value of this bit is 0.
+        */
+       ohci->hc_control = OHCI_CTRL_RWC;
+
        retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
        if (retval == 0) {
                device_wakeup_enable(hcd->self.controller);
@@ -677,9 +683,6 @@ ohci_hcd_at91_drv_suspend(struct device *dev)
         * REVISIT: some boards will be able to turn VBUS off...
         */
        if (!ohci_at91->wakeup) {
-               ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
-               ohci->hc_control &= OHCI_CTRL_RWC;
-               ohci_writel(ohci, ohci->hc_control, &ohci->regs->control);
                ohci->rh_state = OHCI_RH_HALTED;
 
                /* flush the writes */