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Subject[PATCH 3/8] [Blackfin] RTC driver: add support for power management framework
Date
From: Mike Frysinger <vapier.adi@gmail.com>

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>
---
drivers/rtc/rtc-bfin.c | 31 +++++++++++++++++--------------
1 files changed, 17 insertions(+), 14 deletions(-)
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index a568d29..23b991d 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -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)
--
1.5.6


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