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, 21 deletions

diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index 0e7c15b24c1..d829ea63c4f 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -293,25 +293,6 @@ static int pl031_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
         return ret;
 }
 
-static int pl031_irq_set_freq(struct device *dev, int freq)
-{
-        struct pl031_local *ldata = dev_get_drvdata(dev);
-
-        /* Cant set timer if it is already enabled */
-        if (readl(ldata->base + RTC_TCR) & RTC_TCR_EN) {
-                dev_err(dev, "can't change frequency while timer enabled\n");
-                return -EINVAL;
-        }
-
-        /* If self start bit in RTC_TCR is set timer will start here,
-         * but we never set that bit. Instead we start the timer when
-         * set_state is called with enabled == 1.
-         */
-        writel(RTC_TIMER_FREQ / freq, ldata->base + RTC_TLR);
-
-        return 0;
-}
-
 static int pl031_remove(struct amba_device *adev)
 {
         struct pl031_local *ldata = dev_get_drvdata(&adev->dev);
@@ -408,7 +389,6 @@ static struct rtc_class_ops stv1_pl031_ops = {
         .read_alarm = pl031_read_alarm,
         .set_alarm = pl031_set_alarm,
         .alarm_irq_enable = pl031_alarm_irq_enable,
-        .irq_set_freq = pl031_irq_set_freq,
 };
 
 /* And the second ST derivative */
@@ -418,7 +398,6 @@ static struct rtc_class_ops stv2_pl031_ops = {
         .read_alarm = pl031_stv2_read_alarm,
         .set_alarm = pl031_stv2_set_alarm,
         .alarm_irq_enable = pl031_alarm_irq_enable,
-        .irq_set_freq = pl031_irq_set_freq,
 };
 
 static struct amba_id pl031_ids[] = {