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[6/7] rtc: ds1305: Report maximum alarm limit to rtc core

Message ID 20230816133936.2150294-7-linux@roeck-us.net
State Superseded
Headers show
Series rtc: Add support for limited alarm timer offsets | expand

Commit Message

Guenter Roeck Aug. 16, 2023, 1:39 p.m. UTC 
DS1305 only supports alarms up to 24 hours in the future.
Report the limit to the RTC core.

If the alarm is too large when trying to set an alarm, return -ERANGE
instead of -EDOM to align with error codes returned by other rtc drivers.

Cc: Brian Norris <briannorris@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/rtc/rtc-ds1305.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c
index ed9360486953..1d9bbf4e06cb 100644
--- a/drivers/rtc/rtc-ds1305.c
+++ b/drivers/rtc/rtc-ds1305.c
@@ -337,7 +337,7 @@  static int ds1305_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
 	if (later <= now)
 		return -EINVAL;
 	if ((later - now) > 24 * 60 * 60)
-		return -EDOM;
+		return -ERANGE;
 
 	/* disable alarm if needed */
 	if (ds1305->ctrl[0] & DS1305_AEI0) {
@@ -691,6 +691,7 @@  static int ds1305_probe(struct spi_device *spi)
 	ds1305->rtc->ops = &ds1305_ops;
 	ds1305->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
 	ds1305->rtc->range_max = RTC_TIMESTAMP_END_2099;
+	ds1305->rtc->range_max_offset = 24 * 60 * 60;
 
 	ds1305_nvmem_cfg.priv = ds1305;
 	status = devm_rtc_register_device(ds1305->rtc);