diff options
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/host/ohci-omap.c | 53 |
1 files changed, 16 insertions, 37 deletions
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index b62d6993769..5cde76faab9 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -456,34 +456,22 @@ static int ohci_hcd_omap_drv_remove(struct device *dev) #ifdef CONFIG_PM -/* states match PCI usage, always suspending the root hub except that - * 4 ~= D3cold (ACPI D3) with clock off (resume sees reset). - * - * FIXME: above comment is not right, and code is wrong, too :-(. - */ - -static int ohci_omap_suspend(struct device *dev, pm_message_t state, u32 level) +static int ohci_omap_suspend(struct device *dev, pm_message_t message, u32 level) { struct ohci_hcd *ohci = hcd_to_ohci(dev_get_drvdata(dev)); int status = -EINVAL; if (level != SUSPEND_POWER_DOWN) return 0; - if (state <= dev->power.power_state) - return 0; - dev_dbg(dev, "suspend to %d\n", state); down(&ohci_to_hcd(ohci)->self.root_hub->serialize); status = ohci_hub_suspend(ohci_to_hcd(ohci)); if (status == 0) { - if (state >= 4) { - omap_ohci_clock_power(0); - ohci_to_hcd(ohci)->self.root_hub->state = - USB_STATE_SUSPENDED; - state = 4; - } + omap_ohci_clock_power(0); + ohci_to_hcd(ohci)->self.root_hub->state = + USB_STATE_SUSPENDED; ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED; - dev->power.power_state = state; + dev->power.power_state = PMSG_SUSPEND; } up(&ohci_to_hcd(ohci)->self.root_hub->serialize); return status; @@ -497,29 +485,20 @@ static int ohci_omap_resume(struct device *dev, u32 level) if (level != RESUME_POWER_ON) return 0; - switch (dev->power.power_state) { - case 0: - break; - case 4: - if (time_before(jiffies, ohci->next_statechange)) - msleep(5); - ohci->next_statechange = jiffies; - omap_ohci_clock_power(1); - /* FALLTHROUGH */ - default: - dev_dbg(dev, "resume from %d\n", dev->power.power_state); + if (time_before(jiffies, ohci->next_statechange)) + msleep(5); + ohci->next_statechange = jiffies; + omap_ohci_clock_power(1); #ifdef CONFIG_USB_SUSPEND - /* get extra cleanup even if remote wakeup isn't in use */ - status = usb_resume_device(ohci_to_hcd(ohci)->self.root_hub); + /* get extra cleanup even if remote wakeup isn't in use */ + status = usb_resume_device(ohci_to_hcd(ohci)->self.root_hub); #else - down(&ohci_to_hcd(ohci)->self.root_hub->serialize); - status = ohci_hub_resume(ohci_to_hcd(ohci)); - up(&ohci_to_hcd(ohci)->self.root_hub->serialize); + down(&ohci_to_hcd(ohci)->self.root_hub->serialize); + status = ohci_hub_resume(ohci_to_hcd(ohci)); + up(&ohci_to_hcd(ohci)->self.root_hub->serialize); #endif - if (status == 0) - dev->power.power_state = 0; - break; - } + if (status == 0) + dev->power.power_state = PMSG_ON; return status; } |