RTC: Cleanup rtc_class_ops->irq_set_freq()

With the generic rtc code now emulating PIE mode irqs via an
hrtimer, no one calls the rtc_class_ops->irq_set_freq call.

This patch removes the hook and deletes the driver functions
if no one else calls them.

CC: Thomas Gleixner <tglx@linutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
CC: rtc-linux@googlegroups.com
Signed-off-by: John Stultz <john.stultz@linaro.org>

1 files changed, 0 insertions, 26 deletions

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index de632e793d46..bdb1f8e2042a 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -375,31 +375,6 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t)
         return 0;
 }
 
-static int cmos_irq_set_freq(struct device *dev, int freq)
-{
-        struct cmos_rtc *cmos = dev_get_drvdata(dev);
-        int             f;
-        unsigned long   flags;
-
-        if (!is_valid_irq(cmos->irq))
-                return -ENXIO;
-
-        if (!is_power_of_2(freq))
-                return -EINVAL;
-        /* 0 = no irqs; 1 = 2^15 Hz ... 15 = 2^0 Hz */
-        f = ffs(freq);
-        if (f-- > 16)
-                return -EINVAL;
-        f = 16 - f;
-
-        spin_lock_irqsave(&rtc_lock, flags);
-        hpet_set_periodic_freq(freq);
-        CMOS_WRITE(RTC_REF_CLCK_32KHZ | f, RTC_FREQ_SELECT);
-        spin_unlock_irqrestore(&rtc_lock, flags);
-
-        return 0;
-}
-
 static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
         struct cmos_rtc *cmos = dev_get_drvdata(dev);
@@ -482,7 +457,6 @@ static const struct rtc_class_ops cmos_rtc_ops = {
         .read_alarm             = cmos_read_alarm,
         .set_alarm              = cmos_set_alarm,
         .proc                   = cmos_procfs,
-        .irq_set_freq           = cmos_irq_set_freq,
         .alarm_irq_enable       = cmos_alarm_irq_enable,
         .update_irq_enable      = cmos_update_irq_enable,
 };