rtc: class: Switch to use hrtimer_setup()

hrtimer_setup() takes the callback function pointer as argument and
initializes the timer completely.

Replace hrtimer_init() and the open coded initialization of
hrtimer::function with the new setup mechanism.

Patch was created by using Coccinelle.

Signed-off-by: Nam Cao <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Zack Rusin <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Link: https://lore.kernel.org/all/22f3f087ddbab1708583033c07c3b7fb17810110.1738746904.git.namcao@linutronix.de

Author: covanam

drivers/rtc/class.c

@@ -240,8 +240,7 @@ static struct rtc_device *rtc_allocate_device(void)
 	/* Init uie timer */
 	rtc_timer_init(&rtc->uie_rtctimer, rtc_uie_update_irq, rtc);
 	/* Init pie timer */
-	hrtimer_init(&rtc->pie_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	rtc->pie_timer.function = rtc_pie_update_irq;
+	hrtimer_setup(&rtc->pie_timer, rtc_pie_update_irq, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	rtc->pie_enabled = 0;
 
 	set_bit(RTC_FEATURE_ALARM, rtc->features);