Agreed. Thanks for clarification.
Regards,
Karthikeyan Krishnasamy
On 3/29/24 15:58, Alexandre Belloni wrote:
On 29/03/2024 15:49:40+0530, Karthikeyan Krishnasamy wrote:
PORF flag is set during power reset and voltage drop below Vpor
data in rtc device is no longer valid if PORF flag is set
and software must reset to 0, in order to perform sanity
check on rtc data
Signed-off-by: Karthikeyan Krishnasamy <karthikeyan@xxxxxxxxxxx>
---
drivers/rtc/rtc-rv3028.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c
index 2f001c59c61d..e9699ff0c4e8 100644
--- a/drivers/rtc/rtc-rv3028.c
+++ b/drivers/rtc/rtc-rv3028.c
@@ -951,6 +951,13 @@ static int rv3028_probe(struct i2c_client *client)
if (ret < 0)
return ret;
+ if (status & RV3028_STATUS_PORF) {
+ ret = regmap_update_bits(rv3028->regmap, RV3028_STATUS,
+ RV3028_STATUS_PORF, 0);
+ if (ret < 0)
+ return ret;
+ }
+
This breaks the workflow, you must set the time to reset PORF.
if (status & RV3028_STATUS_AF)
dev_warn(&client->dev, "An alarm may have been missed.\n");
--
2.34.1
