rtc: brcmstb-waketimer: non-functional code changes

These changes are not intended to affect functionality, but
simplify the source code. They are performed here to simplify
review and reduce confusion with other changes in this set.

Since set_alarm includes the alarm_irq_enable functionality call
it directly from that function for simplicity (even though it
does nothing at the moment). The order of the declarations is
changed to prevent the need for a prototype.

The function device_init_wakeup() is used to replace the
functions device_set_wakeup_capable() and device_wakeup_enable()
since it is equivalent.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230120190147.718976-3-opendmb@gmail.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-brcmstb-waketimer.c

@@ -169,6 +169,16 @@ static int brcmstb_waketmr_getalarm(struct device *dev,
 	return 0;
 }
 
+/*
+ * Does not do much but keep the RTC class happy. We always support
+ * alarms.
+ */
+static int brcmstb_waketmr_alarm_enable(struct device *dev,
+					unsigned int enabled)
+{
+	return 0;
+}
+
 static int brcmstb_waketmr_setalarm(struct device *dev,
 				     struct rtc_wkalrm *alarm)
 {
@@ -182,17 +192,7 @@ static int brcmstb_waketmr_setalarm(struct device *dev,
 
 	brcmstb_waketmr_set_alarm(timer, sec);
 
-	return 0;
-}
-
-/*
- * Does not do much but keep the RTC class happy. We always support
- * alarms.
- */
-static int brcmstb_waketmr_alarm_enable(struct device *dev,
-					unsigned int enabled)
-{
-	return 0;
+	return brcmstb_waketmr_alarm_enable(dev, alarm->enabled);
 }
 
 static const struct rtc_class_ops brcmstb_waketmr_ops = {
@@ -228,8 +228,7 @@ static int brcmstb_waketmr_probe(struct platform_device *pdev)
 	 * Set wakeup capability before requesting wakeup interrupt, so we can
 	 * process boot-time "wakeups" (e.g., from S5 soft-off)
 	 */
-	device_set_wakeup_capable(dev, true);
-	device_wakeup_enable(dev);
+	device_init_wakeup(dev, true);
 
 	timer->irq = platform_get_irq(pdev, 0);
 	if (timer->irq < 0)