Add some debug output in cases where the initialization of a regmap fails.
Signed-off-by: Mario Six mario.six@gdsys.cc ---
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 51d9cadc510..3488361ee14 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) -- 2.11.0