From: Bryan Brattlof <bb@ti.com>
To: Alessandro Zummo <a.zummo@towertech.it>,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Linux RTC <linux-rtc@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Nishanth Menon <nm@ti.com>, Bryan Brattlof <bb@ti.com>
Subject: [PATCH 1/2] rtc: k3: wait until the unlock field is not zero
Date: Tue, 16 Aug 2022 12:33:11 -0500 [thread overview]
Message-ID: <20220816173312.23243-1-bb@ti.com> (raw)
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@ti.com>
---
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
next reply other threads:[~2022-08-16 17:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-16 17:33 Bryan Brattlof [this message]
2022-08-16 17:33 ` [PATCH 2/2] rtc: k3: detect SoC to determine erratum fix Bryan Brattlof
2022-08-23 20:26 ` [PATCH 1/2] rtc: k3: wait until the unlock field is not zero Alexandre Belloni
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