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 5b5880c..b38a228 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -221,6 +221,12 @@
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 @@
* 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 */