From 08ea87a6de1b9357b6edcfafb90be5bcecfd31c0 Mon Sep 17 00:00:00 2001
From: Dario Binacchi <dariobin@libero.it>
Date: Wed, 2 Jun 2021 22:38:05 +0200
Subject: [PATCH] rtc: davinci: fix date loaded on reset
On reset, the RTC loads the 2000-01-01 date with a wrong day of the
week (Sunday instead of Saturday).
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210602203805.11494-9-dariobin@libero.it
---
drivers/rtc/davinci.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/rtc/davinci.c b/drivers/rtc/davinci.c
index 21e5234477..c7ce41bbf5 100644
--- a/drivers/rtc/davinci.c
+++ b/drivers/rtc/davinci.c
@@ -290,6 +290,7 @@ static int omap_rtc_remove(struct udevice *dev)
static int omap_rtc_probe(struct udevice *dev)
{
struct omap_rtc_priv *priv = dev_get_priv(dev);
+ struct rtc_time tm;
u8 reg, mask, new_ctrl;
priv->dev = dev;
@@ -380,6 +381,15 @@ static int omap_rtc_probe(struct udevice *dev)
}
omap_rtc_lock(priv);
+
+ if (omap_rtc_get(dev, &tm)) {
+ dev_err(dev, "failed to get datetime\n");
+ } else if (tm.tm_year == 2000 && tm.tm_mon == 1 && tm.tm_mday == 1 &&
+ tm.tm_wday == 0) {
+ tm.tm_wday = 6;
+ omap_rtc_set(dev, &tm);
+ }
+
return 0;
}
--
2.39.5