diff options
| author | Andrey Skvortsov <andrej.skvortzov@gmail.com> | 2019-11-16 23:37:48 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2019-11-17 22:24:33 +0100 |
| commit | db96d571a7c2207ff27ad2c46a82b26d870f9bdc (patch) | |
| tree | 6d363cdead101613fde57c6505af54d01776c39f /drivers/rtc | |
| parent | 5ba03f8f681a8c894514c55cf7a9027ef897590e (diff) | |
| download | linux-db96d571a7c2207ff27ad2c46a82b26d870f9bdc.tar.bz2 | |
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: Andrey Skvortsov <andrej.skvortzov@gmail.com>
Link: https://lore.kernel.org/r/20191116203748.27166-1-andrej.skvortzov@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-tps65910.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c index 2c0467a9e717..e3840386f430 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; @@ -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; - 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; |