[PATCH 1/2] rtc: k3: wait until the unlock field is not zero

From: Bryan Brattlof
Date: Tue Aug 16 2022 - 13:33:52 EST


After writing the magic words to the KICK0 and KICK1 registers, we must
wait for a 1 in the unlock field of the general control register to
signify when the rtc device is in an unlocked state.

Signed-off-by: Bryan Brattlof <bb@xxxxxx>
---
drivers/rtc/rtc-ti-k3.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ti-k3.c b/drivers/rtc/rtc-ti-k3.c
index 7a0f181d3fefe..fd26be7868d25 100644
--- a/drivers/rtc/rtc-ti-k3.c
+++ b/drivers/rtc/rtc-ti-k3.c
@@ -190,7 +190,7 @@ static int k3rtc_unlock_rtc(struct ti_k3_rtc *priv)

/* Skip fence since we are going to check the unlock bit as fence */
ret = regmap_field_read_poll_timeout(priv->r_fields[K3RTC_UNLOCK], ret,
- !ret, 2, priv->sync_timeout_us);
+ ret, 2, priv->sync_timeout_us);

return ret;
}
--
2.17.1