regmap: debugfs: "registers" & "access" for single register maps

When a map covers a single register, max_register is equal
to 0, so the "registers" & "access" files were not created.
Now they will be, as register 0 must be readable for such
map to make sense.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index c5471cd6ebb7..45d812c0ea77 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -511,7 +511,7 @@ void regmap_debugfs_init(struct regmap *map, const char *name)
         debugfs_create_file("range", 0400, map->debugfs,
                             map, &regmap_reg_ranges_fops);
 
-        if (map->max_register) {
+        if (map->max_register || regmap_readable(map, 0)) {
                 debugfs_create_file("registers", 0400, map->debugfs,
                                     map, &regmap_map_fops);
                 debugfs_create_file("access", 0400, map->debugfs,