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authorMike Frysinger <vapier.adi@gmail.com>2008-08-05 16:01:18 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-05 17:33:47 -0400
commit813006f4bb4a39afdde8ab2e3559971c029d1dc0 (patch)
tree599c70a70ba38f557ec439e73f9fe4620af0b970 /drivers
parent5aeb776d0c2bb1dd3ef01f4805929e2bc2923e7b (diff)
blackfin RTC driver: add support for power management framework
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Cc: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/rtc/rtc-bfin.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index a568d29b0742..23b991d41ef1 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -2,7 +2,7 @@
2 * Blackfin On-Chip Real Time Clock Driver 2 * Blackfin On-Chip Real Time Clock Driver
3 * Supports BF52[257]/BF53[123]/BF53[467]/BF54[24789] 3 * Supports BF52[257]/BF53[123]/BF53[467]/BF54[24789]
4 * 4 *
5 * Copyright 2004-2007 Analog Devices Inc. 5 * Copyright 2004-2008 Analog Devices Inc.
6 * 6 *
7 * Enter bugs at http://blackfin.uclinux.org/ 7 * Enter bugs at http://blackfin.uclinux.org/
8 * 8 *
@@ -412,6 +412,8 @@ static int __devinit bfin_rtc_probe(struct platform_device *pdev)
412 412
413 platform_set_drvdata(pdev, rtc); 413 platform_set_drvdata(pdev, rtc);
414 414
415 device_init_wakeup(&pdev->dev, 1);
416
415 return 0; 417 return 0;
416 418
417 err: 419 err:
@@ -433,25 +435,28 @@ static int __devexit bfin_rtc_remove(struct platform_device *pdev)
433#ifdef CONFIG_PM 435#ifdef CONFIG_PM
434static int bfin_rtc_suspend(struct platform_device *pdev, pm_message_t state) 436static int bfin_rtc_suspend(struct platform_device *pdev, pm_message_t state)
435{ 437{
436#ifdef PM_WAKEUP_SIC_IWR
437 struct bfin_rtc *rtc = dev_get_drvdata(&pdev->dev); 438 struct bfin_rtc *rtc = dev_get_drvdata(&pdev->dev);
438#endif 439
439 bfin_rtc_reset(&pdev->dev); 440 if (device_may_wakeup(&pdev->dev))
440#ifdef PM_WAKEUP_SIC_IWR 441 enable_irq_wake(IRQ_RTC);
441 bfin_write_RTC_SWCNT(10); 442 else
442 bfin_rtc_int_set(rtc, RTC_ISTAT_STOPWATCH); 443 bfin_rtc_int_clear(rtc, -1);
443#endif 444
444 return 0; 445 return 0;
445} 446}
446 447
447static int bfin_rtc_resume(struct platform_device *pdev) 448static int bfin_rtc_resume(struct platform_device *pdev)
448{ 449{
449#ifdef PM_WAKEUP_SIC_IWR 450 if (device_may_wakeup(&pdev->dev))
450 struct bfin_rtc *rtc = dev_get_drvdata(&pdev->dev); 451 disable_irq_wake(IRQ_RTC);
451 bfin_rtc_int_clear(rtc, RTC_ISTAT_STOPWATCH); 452 else
452#endif 453 bfin_write_RTC_ISTAT(-1);
454
453 return 0; 455 return 0;
454} 456}
457#else
458# define bfin_rtc_suspend NULL
459# define bfin_rtc_resume NULL
455#endif 460#endif
456 461
457static struct platform_driver bfin_rtc_driver = { 462static struct platform_driver bfin_rtc_driver = {
@@ -461,10 +466,8 @@ static struct platform_driver bfin_rtc_driver = {
461 }, 466 },
462 .probe = bfin_rtc_probe, 467 .probe = bfin_rtc_probe,
463 .remove = __devexit_p(bfin_rtc_remove), 468 .remove = __devexit_p(bfin_rtc_remove),
464#ifdef CONFIG_PM
465 .suspend = bfin_rtc_suspend, 469 .suspend = bfin_rtc_suspend,
466 .resume = bfin_rtc_resume, 470 .resume = bfin_rtc_resume,
467#endif
468}; 471};
469 472
470static int __init bfin_rtc_init(void) 473static int __init bfin_rtc_init(void)