From 1d7d8bc4137fa85836509b3920ddebb139931ea9 Mon Sep 17 00:00:00 2001
From: Ralph Metzler <rjkm@metzlerbros.de>
Date: Wed, 28 Mar 2018 19:43:04 +0200
Subject: [PATCH] report I2C bus errors

---
 ddbridge/ddbridge-i2c.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ddbridge/ddbridge-i2c.c b/ddbridge/ddbridge-i2c.c
index 5df3e6d..331d4c9 100644
--- a/ddbridge/ddbridge-i2c.c
+++ b/ddbridge/ddbridge-i2c.c
@@ -63,7 +63,10 @@ static int ddb_i2c_cmd(struct ddb_i2c *i2c, u32 adr, u32 cmd)
 #endif
 		return -EIO;
 	}
-	if (val & 0x70000)
+	val &= 0x70000;
+	if (val == 0x20000)
+		dev_err(dev->dev, "I2C bus errorx\n");
+	if (val)
 		return -EIO;
 	return 0;
 }