[U-Boot] [PATVH v7 06/14] regmap: Add error output

[Mario Six]

Add some debug output in cases where the initialization of a regmap
fails.

Reviewed-by: Anatolij Gustschin <agust at denx.de>
Reviewed-by: Simon Glass <sjg at chromium.org>
Signed-off-by: Mario Six <mario.six at gdsys.cc>

---

v6 -> v7:
No changes

v5 -> v6:
No changes

v4 -> v5:
No changes

v3 -> v4:
No changes

v2 -> v3:
New in v3

---
 drivers/core/regmap.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index 25c1ae5d7d..154426269d 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -139,12 +139,18 @@ int regmap_init_mem(ofnode node, struct regmap **mapp)
 	}

 	len = ofnode_read_size(node, "reg");
-	if (len < 0)
+	if (len < 0) {
+		debug("%s: Error while reading reg size (ret = %d)\n",
+		      ofnode_get_name(node), len);
 		return len;
+	}
 	len /= sizeof(fdt32_t);
 	count = len / both_len;
-	if (!count)
+	if (!count) {
+		debug("%s: Not enough data in reg property\n",
+		      ofnode_get_name(node));
 		return -EINVAL;
+	}

 	map = regmap_alloc(count);
 	if (!map)
--
2.16.4