diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2013-02-22 04:44:35 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-22 05:22:28 +0400 |
| commit | eb5eba4ef72248b976465906cfed5fca2e9d8831 (patch) | |
| tree | 9bbe3909fae02a5c134f095faea8d27ed2690423 | |
| parent | 36d6182411b9f597f9f85ec0c4bb00909fd16d59 (diff) | |
| download | linux-eb5eba4ef72248b976465906cfed5fca2e9d8831.tar.xz | |
drivers/rtc/rtc-tps65910.c: enable/disable wake in suspend/resume
Making the rtc driver as wakeup capabale and leaving the wake
enable/disable decision to user space through a sysfs attribute.
In suspend, enable wake if device wakeup enabled. In resume disable wake
again.
This change is inline with the Documentation/power/devices.txt#
/sys/devices/.../power/wakeup files
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/rtc/rtc-tps65910.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c index e5fef141a0e2..932a655aa41c 100644 --- a/drivers/rtc/rtc-tps65910.c +++ b/drivers/rtc/rtc-tps65910.c @@ -27,6 +27,7 @@ struct tps65910_rtc { struct rtc_device *rtc; + int irq; /* To store the list of enabled interrupts */ u32 irqstat; }; @@ -273,7 +274,8 @@ static int tps65910_rtc_probe(struct platform_device *pdev) dev_err(&pdev->dev, "IRQ is not free.\n"); return ret; } - device_init_wakeup(&pdev->dev, 1); + tps_rtc->irq = irq; + device_set_wakeup_capable(&pdev->dev, 1); tps_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, &tps65910_rtc_ops, THIS_MODULE); @@ -308,9 +310,13 @@ static int tps65910_rtc_remove(struct platform_device *pdev) static int tps65910_rtc_suspend(struct device *dev) { struct tps65910 *tps = dev_get_drvdata(dev->parent); + struct tps65910_rtc *tps_rtc = dev_get_drvdata(dev); u8 alarm = TPS65910_RTC_INTERRUPTS_IT_ALARM; int ret; + if (device_may_wakeup(dev)) + enable_irq_wake(tps_rtc->irq); + /* Store current list of enabled interrupts*/ ret = regmap_read(tps->regmap, TPS65910_RTC_INTERRUPTS, &tps->rtc->irqstat); @@ -324,6 +330,10 @@ static int tps65910_rtc_suspend(struct device *dev) static int tps65910_rtc_resume(struct device *dev) { struct tps65910 *tps = dev_get_drvdata(dev->parent); + struct tps65910_rtc *tps_rtc = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) + disable_irq_wake(tps_rtc->irq); /* Restore list of enabled interrupts before suspend */ return regmap_write(tps->regmap, TPS65910_RTC_INTERRUPTS, |