rtc: da9063: set uie_unsupported when relevant

alexandrebelloni · alexandrebelloni · commit 882c5e552ffd · 2019-04-02T23:33:09.000+02:00
The DA9063AD doesn't support alarms on any seconds and its granularity is
the minute. Set uie_unsupported in that case.

Reported-by: Wolfram Sang &lt;wsa+renesas@sang-engineering.com&gt;
Reported-by: Geert Uytterhoeven &lt;geert+renesas@glider.be&gt;
Reviewed-by: Wolfram Sang &lt;wsa+renesas@sang-engineering.com&gt;
Tested-by: Wolfram Sang &lt;wsa+renesas@sang-engineering.com&gt;
Acked-by: Steve Twiss &lt;stwiss.opensource@diasemi.com&gt;
Signed-off-by: Alexandre Belloni &lt;alexandre.belloni@bootlin.com&gt;
diff --git a/drivers/rtc/rtc-da9063.c b/drivers/rtc/rtc-da9063.c
@@ -480,6 +480,13 @@ static int da9063_rtc_probe(struct platform_device *pdev)
 	da9063_data_to_tm(data, &rtc->alarm_time, rtc);
 	rtc->rtc_sync = false;
 
+	/*
+	 * TODO: some models have alarms on a minute boundary but still support
+	 * real hardware interrupts. Add this once the core supports it.
+	 */
+	if (config->rtc_data_start != RTC_SEC)
+		rtc->rtc_dev->uie_unsupported = 1;
+
 	irq_alarm = platform_get_irq_byname(pdev, "ALARM");
 	ret = devm_request_threaded_irq(&pdev->dev, irq_alarm, NULL,
 					da9063_alarm_event,
