regmap: Add error output
Add some debug output in cases where the initialization of a regmap
fails.
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index 25c1ae5..1544262 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -139,12 +139,18 @@
}
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)