Commit db96d571 authored by Andrey Skvortsov's avatar Andrey Skvortsov Committed by Alexandre Belloni
Browse files

rtc: tps65910: allow using RTC without alarm interrupt 



If tps65910 INT1 pin (IRQ output) is not wired to any IRQ controller,
then it can't be used as system wakeup/alarm source,
but it is still possible to read/write time from/to RTC.

Signed-off-by: default avatarAndrey Skvortsov <andrej.skvortzov@gmail.com>
Link: https://lore.kernel.org/r/20191116203748.27166-1-andrej.skvortzov@gmail.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 5ba03f8f

drivers/rtc/rtc-tps65910.c

+15 −6
Original line number Diff line number Diff line
@@ -361,6 +361,13 @@ static const struct rtc_class_ops tps65910_rtc_ops = { 
	.set_offset	= tps65910_set_offset,

};



static const struct rtc_class_ops tps65910_rtc_ops_noirq = {

	.read_time	= tps65910_rtc_read_time,

	.set_time	= tps65910_rtc_set_time,

	.read_offset	= tps65910_read_offset,

	.set_offset	= tps65910_set_offset,

};



static int tps65910_rtc_probe(struct platform_device *pdev)

{

	struct tps65910 *tps65910 = NULL;
@@ -414,14 +421,16 @@ static int tps65910_rtc_probe(struct platform_device *pdev) 
	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,

		tps65910_rtc_interrupt, IRQF_TRIGGER_LOW,

		dev_name(&pdev->dev), &pdev->dev);

	if (ret < 0) {

		dev_err(&pdev->dev, "IRQ is not free.\n");

		return ret;

	}

	if (ret < 0)

		irq = -1;



	tps_rtc->irq = irq;

	if (irq != -1) {

		device_set_wakeup_capable(&pdev->dev, 1);



		tps_rtc->rtc->ops = &tps65910_rtc_ops;

	} else

		tps_rtc->rtc->ops = &tps65910_rtc_ops_noirq;



	tps_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;

	tps_rtc->rtc->range_max = RTC_TIMESTAMP_END_2099;

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