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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
Dario Binacchi 3 年之前
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共有 1 个文件被更改,包括 10 次插入0 次删除
  1. 10 0
      drivers/rtc/davinci.c

+ 10 - 0
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;
 }