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regmap: Add error output

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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>
This commit is contained in:
Mario Six 2018-10-15 09:24:08 +02:00 • committed by Simon Glass
parent 7f0e366999
commit 2448f607dc
1 changed files with 8 additions and 2 deletions
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10
drivers/core/regmap.c
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@ -139,12 +139,18 @@ int regmap_init_mem(ofnode node, struct regmap **mapp)
} }
len = ofnode_read_size(node, "reg"); 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; return len;
}
len /= sizeof(fdt32_t); len /= sizeof(fdt32_t);
count = len / both_len; count = len / both_len;
if (!count) if (!count) {
debug("%s: Not enough data in reg property\n",
ofnode_get_name(node));
return -EINVAL; return -EINVAL;
}
map = regmap_alloc(count); map = regmap_alloc(count);
if (!map) if (!map)