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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>
This commit is contained in:
Mike Frysinger 2008-08-05 13:01:18 -07:00 committed by Linus Torvalds
parent 5aeb776d0c
commit 813006f4bb
1 changed files with 17 additions and 14 deletions
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31
drivers/rtc/rtc-bfin.c
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@ -2,7 +2,7 @@
* Blackfin On-Chip Real Time Clock Driver
* Supports BF52[257]/BF53[123]/BF53[467]/BF54[24789]
*
* Copyright 2004-2007 Analog Devices Inc.
* Copyright 2004-2008 Analog Devices Inc.
*
* Enter bugs at http://blackfin.uclinux.org/
*
@ -412,6 +412,8 @@ static int __devinit bfin_rtc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, rtc);
device_init_wakeup(&pdev->dev, 1);
return 0;
err:
@ -433,25 +435,28 @@ static int __devexit bfin_rtc_remove(struct platform_device *pdev)
#ifdef CONFIG_PM
static int bfin_rtc_suspend(struct platform_device *pdev, pm_message_t state)
{
#ifdef PM_WAKEUP_SIC_IWR
struct bfin_rtc *rtc = dev_get_drvdata(&pdev->dev);
#endif
bfin_rtc_reset(&pdev->dev);
#ifdef PM_WAKEUP_SIC_IWR
bfin_write_RTC_SWCNT(10);
bfin_rtc_int_set(rtc, RTC_ISTAT_STOPWATCH);
#endif
if (device_may_wakeup(&pdev->dev))
enable_irq_wake(IRQ_RTC);
else
bfin_rtc_int_clear(rtc, -1);
return 0;
}
static int bfin_rtc_resume(struct platform_device *pdev)
{
#ifdef PM_WAKEUP_SIC_IWR
struct bfin_rtc *rtc = dev_get_drvdata(&pdev->dev);
bfin_rtc_int_clear(rtc, RTC_ISTAT_STOPWATCH);
#endif
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(IRQ_RTC);
else
bfin_write_RTC_ISTAT(-1);
return 0;
}
#else
# define bfin_rtc_suspend NULL
# define bfin_rtc_resume NULL
#endif
static struct platform_driver bfin_rtc_driver = {
@ -461,10 +466,8 @@ static struct platform_driver bfin_rtc_driver = {
},
.probe = bfin_rtc_probe,
.remove = __devexit_p(bfin_rtc_remove),
#ifdef CONFIG_PM
.suspend = bfin_rtc_suspend,
.resume = bfin_rtc_resume,
#endif
};
static int __init bfin_rtc_init(void)