diff options
| author | John Stultz <john.stultz@linaro.org> | 2011-02-03 04:02:41 +0300 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2011-02-04 00:02:35 +0300 |
| commit | 16380c153a69c3784d2afaddfe0a22f353046cf6 (patch) | |
| tree | e923f26334d999a1e456ca80c446fbf8b1c2eedd /drivers/rtc/rtc-ds1286.c | |
| parent | ac54cd2bd5b4db4f1c03392d63daf355627ea180 (diff) | |
| download | linux-16380c153a69c3784d2afaddfe0a22f353046cf6.tar.xz | |
RTC: Convert rtc drivers to use the alarm_irq_enable method
Some rtc drivers use the ioctl method instead of the alarm_irq_enable
method for enabling alarm interupts. With the new virtualized RTC
rework, its important for drivers to use the alarm_irq_enable instead.
This patch converts the drivers that use the AIE ioctl method to
use the alarm_irq_enable method. Other ioctl cmds are left untouched.
I have not been able to test or even compile most of these drivers.
Any help to make sure this change is correct would be appreciated!
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
Reported-by: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
Tested-by: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'drivers/rtc/rtc-ds1286.c')
| -rw-r--r-- | drivers/rtc/rtc-ds1286.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c index bf430f9091ed..60ce69600828 100644 --- a/drivers/rtc/rtc-ds1286.c +++ b/drivers/rtc/rtc-ds1286.c @@ -40,6 +40,26 @@ static inline void ds1286_rtc_write(struct ds1286_priv *priv, u8 data, int reg) __raw_writel(data, &priv->rtcregs[reg]); } + +static int ds1286_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + struct ds1286_priv *priv = dev_get_drvdata(dev); + unsigned long flags; + unsigned char val; + + /* Allow or mask alarm interrupts */ + spin_lock_irqsave(&priv->lock, flags); + val = ds1286_rtc_read(priv, RTC_CMD); + if (enabled) + val &= ~RTC_TDM; + else + val |= RTC_TDM; + ds1286_rtc_write(priv, val, RTC_CMD); + spin_unlock_irqrestore(&priv->lock, flags); + + return 0; +} + #ifdef CONFIG_RTC_INTF_DEV static int ds1286_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) @@ -49,22 +69,6 @@ static int ds1286_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) unsigned char val; switch (cmd) { - case RTC_AIE_OFF: - /* Mask alarm int. enab. bit */ - spin_lock_irqsave(&priv->lock, flags); - val = ds1286_rtc_read(priv, RTC_CMD); - val |= RTC_TDM; - ds1286_rtc_write(priv, val, RTC_CMD); - spin_unlock_irqrestore(&priv->lock, flags); - break; - case RTC_AIE_ON: - /* Allow alarm interrupts. */ - spin_lock_irqsave(&priv->lock, flags); - val = ds1286_rtc_read(priv, RTC_CMD); - val &= ~RTC_TDM; - ds1286_rtc_write(priv, val, RTC_CMD); - spin_unlock_irqrestore(&priv->lock, flags); - break; case RTC_WIE_OFF: /* Mask watchdog int. enab. bit */ spin_lock_irqsave(&priv->lock, flags); @@ -316,12 +320,13 @@ static int ds1286_set_alarm(struct device *dev, struct rtc_wkalrm *alm) } static const struct rtc_class_ops ds1286_ops = { - .ioctl = ds1286_ioctl, - .proc = ds1286_proc, + .ioctl = ds1286_ioctl, + .proc = ds1286_proc, .read_time = ds1286_read_time, .set_time = ds1286_set_time, .read_alarm = ds1286_read_alarm, .set_alarm = ds1286_set_alarm, + .alarm_irq_enable = ds1286_alarm_irq_enable, }; static int __devinit ds1286_probe(struct platform_device *pdev) |