1 files changed, 4 insertions, 67 deletions

diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 37ba8c8d2fd0..c718a065e154 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -41,19 +41,11 @@ static int ehci_spear_setup(struct usb_hcd *hcd)
 
         /* registers start at offset 0x0 */
         ehci->caps = hcd->regs;
-        ehci->regs = hcd->regs + HC_LENGTH(ehci, ehci_readl(ehci,
-                                &ehci->caps->hc_capbase));
-        /* cache this readonly data; minimize chip reads */
-        ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
-        retval = ehci_halt(ehci);
-        if (retval)
-                return retval;
 
-        retval = ehci_init(hcd);
+        retval = ehci_setup(hcd);
         if (retval)
                 return retval;
 
-        ehci_reset(ehci);
         ehci_port_power(ehci, 0);
 
         return retval;
@@ -97,71 +89,16 @@ static const struct hc_driver ehci_spear_hc_driver = {
 static int ehci_spear_drv_suspend(struct device *dev)
 {
         struct usb_hcd *hcd = dev_get_drvdata(dev);
-        struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-        unsigned long flags;
-        int rc = 0;
+        bool do_wakeup = device_may_wakeup(dev);
 
-        if (time_before(jiffies, ehci->next_statechange))
-                msleep(10);
-
-        /*
-         * Root hub was already suspended. Disable irq emission and mark HW
-         * unaccessible. The PM and USB cores make sure that the root hub is
-         * either suspended or stopped.
-         */
-        spin_lock_irqsave(&ehci->lock, flags);
-        ehci_prepare_ports_for_controller_suspend(ehci, device_may_wakeup(dev));
-        ehci_writel(ehci, 0, &ehci->regs->intr_enable);
-        ehci_readl(ehci, &ehci->regs->intr_enable);
-        spin_unlock_irqrestore(&ehci->lock, flags);
-
-        return rc;
+        return ehci_suspend(hcd, do_wakeup);
 }
 
 static int ehci_spear_drv_resume(struct device *dev)
 {
         struct usb_hcd *hcd = dev_get_drvdata(dev);
-        struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-
-        if (time_before(jiffies, ehci->next_statechange))
-                msleep(100);
-
-        if (ehci_readl(ehci, &ehci->regs->configured_flag) == FLAG_CF) {
-                int mask = INTR_MASK;
-
-                ehci_prepare_ports_for_controller_resume(ehci);
-
-                if (!hcd->self.root_hub->do_remote_wakeup)
-                        mask &= ~STS_PCD;
-
-                ehci_writel(ehci, mask, &ehci->regs->intr_enable);
-                ehci_readl(ehci, &ehci->regs->intr_enable);
-                return 0;
-        }
-
-        usb_root_hub_lost_power(hcd->self.root_hub);
-
-        /*
-         * Else reset, to cope with power loss or flush-to-storage style
-         * "resume" having let BIOS kick in during reboot.
-         */
-        ehci_halt(ehci);
-        ehci_reset(ehci);
-
-        /* emptying the schedule aborts any urbs */
-        spin_lock_irq(&ehci->lock);
-        if (ehci->reclaim)
-                end_unlink_async(ehci);
-
-        ehci_work(ehci);
-        spin_unlock_irq(&ehci->lock);
-
-        ehci_writel(ehci, ehci->command, &ehci->regs->command);
-        ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
-        ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */
 
-        /* here we "know" root ports should always stay powered */
-        ehci_port_power(ehci, 1);
+        ehci_resume(hcd, false);
         return 0;
 }
 #endif /* CONFIG_PM */