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authordavid-b@pacbell.net <david-b@pacbell.net>2005-06-29 09:59:14 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2005-07-12 14:52:57 -0400
commitb404a5b02abf84812e5333bda201af464925d7a6 (patch)
tree3692641e80b45ba6c7fd0ca4460b6cbe296972cb /drivers/usb/host/ohci-omap.c
parent1d7beee3d4b4ae7faa881ef05ff5d94a125ed8a6 (diff)
[PATCH] USB: ohci-omap pm updates
The recent "pm_message_t" changes removed functionality from the Linux PM framework. This patch removes it from the OMAP OHCI too, removing the distinction between (previous) PM_SUSPEND_MEM and PM_SUSPEND_DISK state transitions ... now the only suspend semantics supportable are what was previously PM_SUSPEND_DISK (4) and is now "PMSG_SUSPEND" (3). From: Todd Poynor <tpoynor@mvista.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ohci-omap.c')
-rw-r--r--drivers/usb/host/ohci-omap.c53
1 files changed, 16 insertions, 37 deletions
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index b62d69937694..5cde76faab93 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)
456 456
457#ifdef CONFIG_PM 457#ifdef CONFIG_PM
458 458
459/* states match PCI usage, always suspending the root hub except that 459static int ohci_omap_suspend(struct device *dev, pm_message_t message, u32 level)
460 * 4 ~= D3cold (ACPI D3) with clock off (resume sees reset).
461 *
462 * FIXME: above comment is not right, and code is wrong, too :-(.
463 */
464
465static int ohci_omap_suspend(struct device *dev, pm_message_t state, u32 level)
466{ 460{
467 struct ohci_hcd *ohci = hcd_to_ohci(dev_get_drvdata(dev)); 461 struct ohci_hcd *ohci = hcd_to_ohci(dev_get_drvdata(dev));
468 int status = -EINVAL; 462 int status = -EINVAL;
469 463
470 if (level != SUSPEND_POWER_DOWN) 464 if (level != SUSPEND_POWER_DOWN)
471 return 0; 465 return 0;
472 if (state <= dev->power.power_state)
473 return 0;
474 466
475 dev_dbg(dev, "suspend to %d\n", state);
476 down(&ohci_to_hcd(ohci)->self.root_hub->serialize); 467 down(&ohci_to_hcd(ohci)->self.root_hub->serialize);
477 status = ohci_hub_suspend(ohci_to_hcd(ohci)); 468 status = ohci_hub_suspend(ohci_to_hcd(ohci));
478 if (status == 0) { 469 if (status == 0) {
479 if (state >= 4) { 470 omap_ohci_clock_power(0);
480 omap_ohci_clock_power(0); 471 ohci_to_hcd(ohci)->self.root_hub->state =
481 ohci_to_hcd(ohci)->self.root_hub->state = 472 USB_STATE_SUSPENDED;
482 USB_STATE_SUSPENDED;
483 state = 4;
484 }
485 ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED; 473 ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
486 dev->power.power_state = state; 474 dev->power.power_state = PMSG_SUSPEND;
487 } 475 }
488 up(&ohci_to_hcd(ohci)->self.root_hub->serialize); 476 up(&ohci_to_hcd(ohci)->self.root_hub->serialize);
489 return status; 477 return status;
@@ -497,29 +485,20 @@ static int ohci_omap_resume(struct device *dev, u32 level)
497 if (level != RESUME_POWER_ON) 485 if (level != RESUME_POWER_ON)
498 return 0; 486 return 0;
499 487
500 switch (dev->power.power_state) { 488 if (time_before(jiffies, ohci->next_statechange))
501 case 0: 489 msleep(5);
502 break; 490 ohci->next_statechange = jiffies;
503 case 4: 491 omap_ohci_clock_power(1);
504 if (time_before(jiffies, ohci->next_statechange))
505 msleep(5);
506 ohci->next_statechange = jiffies;
507 omap_ohci_clock_power(1);
508 /* FALLTHROUGH */
509 default:
510 dev_dbg(dev, "resume from %d\n", dev->power.power_state);
511#ifdef CONFIG_USB_SUSPEND 492#ifdef CONFIG_USB_SUSPEND
512 /* get extra cleanup even if remote wakeup isn't in use */ 493 /* get extra cleanup even if remote wakeup isn't in use */
513 status = usb_resume_device(ohci_to_hcd(ohci)->self.root_hub); 494 status = usb_resume_device(ohci_to_hcd(ohci)->self.root_hub);
514#else 495#else
515 down(&ohci_to_hcd(ohci)->self.root_hub->serialize); 496 down(&ohci_to_hcd(ohci)->self.root_hub->serialize);
516 status = ohci_hub_resume(ohci_to_hcd(ohci)); 497 status = ohci_hub_resume(ohci_to_hcd(ohci));
517 up(&ohci_to_hcd(ohci)->self.root_hub->serialize); 498 up(&ohci_to_hcd(ohci)->self.root_hub->serialize);
518#endif 499#endif
519 if (status == 0) 500 if (status == 0)
520 dev->power.power_state = 0; 501 dev->power.power_state = PMSG_ON;
521 break;
522 }
523 return status; 502 return status;
524} 503}
525 504