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author | Takashi Iwai <tiwai@suse.de> | 2009-01-15 18:27:20 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2009-01-15 18:27:20 +0100 |
commit | c0106d72b8d71696dbe9dc80e2c77d4ac63f7531 (patch) | |
tree | ca96d2baecb0555e36219ed6968dc8e306e530ca /drivers/rtc/interface.c | |
parent | 5852973c129cf7c7e6c229abb7250673fc2a50c9 (diff) | |
parent | eff317d0834ad1ff03f747f6bc2d76b9a9c95160 (diff) | |
download | kernel-crypto-c0106d72b8d71696dbe9dc80e2c77d4ac63f7531.tar.gz kernel-crypto-c0106d72b8d71696dbe9dc80e2c77d4ac63f7531.tar.xz kernel-crypto-c0106d72b8d71696dbe9dc80e2c77d4ac63f7531.zip |
Merge branch 'topic/asoc' into next/asoc
Diffstat (limited to 'drivers/rtc/interface.c')
-rw-r--r-- | drivers/rtc/interface.c | 70 |
1 files changed, 63 insertions, 7 deletions
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index a04c1b6b157..4348c4b0d45 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -50,10 +50,15 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm) if (!rtc->ops) err = -ENODEV; - else if (!rtc->ops->set_time) - err = -EINVAL; - else + else if (rtc->ops->set_time) err = rtc->ops->set_time(rtc->dev.parent, tm); + else if (rtc->ops->set_mmss) { + unsigned long secs; + err = rtc_tm_to_time(tm, &secs); + if (err == 0) + err = rtc->ops->set_mmss(rtc->dev.parent, secs); + } else + err = -EINVAL; mutex_unlock(&rtc->ops_lock); return err; @@ -307,6 +312,60 @@ int rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) } EXPORT_SYMBOL_GPL(rtc_set_alarm); +int rtc_alarm_irq_enable(struct rtc_device *rtc, unsigned int enabled) +{ + int err = mutex_lock_interruptible(&rtc->ops_lock); + if (err) + return err; + + if (!rtc->ops) + err = -ENODEV; + else if (!rtc->ops->alarm_irq_enable) + err = -EINVAL; + else + err = rtc->ops->alarm_irq_enable(rtc->dev.parent, enabled); + + mutex_unlock(&rtc->ops_lock); + return err; +} +EXPORT_SYMBOL_GPL(rtc_alarm_irq_enable); + +int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) +{ + int err = mutex_lock_interruptible(&rtc->ops_lock); + if (err) + return err; + +#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL + if (enabled == 0 && rtc->uie_irq_active) { + mutex_unlock(&rtc->ops_lock); + return rtc_dev_update_irq_enable_emul(rtc, enabled); + } +#endif + + if (!rtc->ops) + err = -ENODEV; + else if (!rtc->ops->update_irq_enable) + err = -EINVAL; + else + err = rtc->ops->update_irq_enable(rtc->dev.parent, enabled); + + mutex_unlock(&rtc->ops_lock); + +#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL + /* + * Enable emulation if the driver did not provide + * the update_irq_enable function pointer or if returned + * -EINVAL to signal that it has been configured without + * interrupts or that are not available at the moment. + */ + if (err == -EINVAL) + err = rtc_dev_update_irq_enable_emul(rtc, enabled); +#endif + return err; +} +EXPORT_SYMBOL_GPL(rtc_update_irq_enable); + /** * rtc_update_irq - report RTC periodic, alarm, and/or update irqs * @rtc: the rtc device @@ -335,7 +394,7 @@ static int __rtc_match(struct device *dev, void *data) { char *name = (char *)data; - if (strncmp(dev->bus_id, name, BUS_ID_SIZE) == 0) + if (strcmp(dev_name(dev), name) == 0) return 1; return 0; } @@ -450,9 +509,6 @@ int rtc_irq_set_freq(struct rtc_device *rtc, struct rtc_task *task, int freq) if (rtc->ops->irq_set_freq == NULL) return -ENXIO; - if (!is_power_of_2(freq)) - return -EINVAL; - spin_lock_irqsave(&rtc->irq_task_lock, flags); if (rtc->irq_task != NULL && task == NULL) err = -EBUSY; |