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Subject[PATCH] rtc: tps65910: allow using RTC without alarm interrupt
Date
Signed-off-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>
---
drivers/rtc/rtc-tps65910.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c
index 2c0467a9e717..aa3a001ef413 100644
--- a/drivers/rtc/rtc-tps65910.c
+++ b/drivers/rtc/rtc-tps65910.c
@@ -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;
@@ -415,13 +422,17 @@ static int tps65910_rtc_probe(struct platform_device *pdev)
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;
+ dev_err(&pdev->dev, "request IRQ:%d failed, err = %d\n",
+ irq, ret);
+ irq = -1;
}
tps_rtc->irq = irq;
- device_set_wakeup_capable(&pdev->dev, 1);
+ 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->ops = &tps65910_rtc_ops;
tps_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
tps_rtc->rtc->range_max = RTC_TIMESTAMP_END_2099;

--
2.20.1
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