rtc: pcf85063: remove pcf85063_rtc_ops_alarm

Move the alarm callbacks in pcf85063_rtc_ops and use RTC_FEATURE_ALARM to
signal to the core whether alarms are available instead of having a
supplementary struct rtc_class_ops without alarm callbacks.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-9-alexandre.belloni@bootlin.com

drivers/rtc/rtc-pcf85063.c

@@ -307,14 +307,6 @@ static int pcf85063_ioctl(struct device *dev, unsigned int cmd,
 }
 
 static const struct rtc_class_ops pcf85063_rtc_ops = {
-	.read_time	= pcf85063_rtc_read_time,
-	.set_time	= pcf85063_rtc_set_time,
-	.read_offset	= pcf85063_read_offset,
-	.set_offset	= pcf85063_set_offset,
-	.ioctl		= pcf85063_ioctl,
-};
-
-static const struct rtc_class_ops pcf85063_rtc_ops_alarm = {
 	.read_time	= pcf85063_rtc_read_time,
 	.set_time	= pcf85063_rtc_set_time,
 	.read_offset	= pcf85063_read_offset,
@@ -587,6 +579,7 @@ static int pcf85063_probe(struct i2c_client *client)
 	pcf85063->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
 	pcf85063->rtc->range_max = RTC_TIMESTAMP_END_2099;
 	pcf85063->rtc->uie_unsupported = 1;
+	clear_bit(RTC_FEATURE_ALARM, pcf85063->rtc->features);
 
 	if (config->has_alarms && client->irq > 0) {
 		err = devm_request_threaded_irq(&client->dev, client->irq,
@@ -597,7 +590,7 @@ static int pcf85063_probe(struct i2c_client *client)
 			dev_warn(&pcf85063->rtc->dev,
 				 "unable to request IRQ, alarms disabled\n");
 		} else {
-			pcf85063->rtc->ops = &pcf85063_rtc_ops_alarm;
+			set_bit(RTC_FEATURE_ALARM, pcf85063->rtc->features);
 			device_init_wakeup(&client->dev, true);
 			err = dev_pm_set_wake_irq(&client->dev, client->irq);
 			if (err)