From: Biwen Li <biwen.li@xxxxxxx>
Add uie_unsupported property to drop warning as follows:
- $ hwclock.util-linux
hwclock.util-liux: select() /dev/rtc0
to wait for clock tick timed out
My case:
- RTC ds1374's INT pin is connected to VCC on T4240RDB,
then the RTC cannot inform cpu about the alarm
interrupt
Signed-off-by: Biwen Li <biwen.li@xxxxxxx>
---
drivers/rtc/rtc-ds1374.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index 9c51a12cf70f..e530e887a17e 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -651,6 +651,10 @@ static int ds1374_probe(struct i2c_client *client,
if (ret)
return ret;
+ if (of_property_read_bool(client->dev.of_node,
+ "uie_unsupported"))
+ ds1374->rtc->uie_unsupported = true;
+
#ifdef CONFIG_RTC_DRV_DS1374_WDT
save_client = client;
ret = misc_register(&ds1374_miscdev);
--
2.17.1
