diff options
| -rw-r--r-- | drivers/base/regmap/internal.h | 3 | ||||
| -rw-r--r-- | drivers/base/regmap/regmap-debugfs.c | 11 | ||||
| -rw-r--r-- | drivers/base/regmap/regmap.c | 2 |
3 files changed, 15 insertions, 1 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 7211babbe4ee..9a9ea514c2d8 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -125,6 +125,9 @@ struct regmap { int reg_stride; int reg_stride_order; + /* If set, will always write field to HW. */ + bool force_write_field; + /* regcache specific members */ const struct regcache_ops *cache_ops; enum regcache_type cache_type; diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index c491fabe3617..f36027591e1a 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -636,6 +636,17 @@ void regmap_debugfs_init(struct regmap *map) ®map_cache_bypass_fops); } + /* + * This could interfere with driver operation. Therefore, don't provide + * any real compile time configuration option for this feature. One will + * have to modify the source code directly in order to use it. + */ +#undef REGMAP_ALLOW_FORCE_WRITE_FIELD_DEBUGFS +#ifdef REGMAP_ALLOW_FORCE_WRITE_FIELD_DEBUGFS + debugfs_create_bool("force_write_field", 0600, map->debugfs, + &map->force_write_field); +#endif + next = rb_first(&map->range_tree); while (next) { range_node = rb_entry(next, struct regmap_range_node, node); diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 627a767fa047..89a7f1c459c1 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -3279,7 +3279,7 @@ static int _regmap_update_bits(struct regmap *map, unsigned int reg, tmp = orig & ~mask; tmp |= val & mask; - if (force_write || (tmp != orig)) { + if (force_write || (tmp != orig) || map->force_write_field) { ret = _regmap_write(map, reg, tmp); if (ret == 0 && change) *change = true; |