diff options
| -rw-r--r-- | drivers/base/regmap/regmap.c | 4 | ||||
| -rw-r--r-- | include/linux/regmap.h | 6 |
2 files changed, 8 insertions, 2 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 8d516a9bfc01..025c62358bd6 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -769,7 +769,9 @@ struct regmap *__regmap_init(struct device *dev, INIT_LIST_HEAD(&map->async_free); init_waitqueue_head(&map->async_waitq); - if (config->read_flag_mask || config->write_flag_mask) { + if (config->read_flag_mask || + config->write_flag_mask || + config->zero_flag_mask) { map->read_flag_mask = config->read_flag_mask; map->write_flag_mask = config->write_flag_mask; } else if (bus) { diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 15eddc1353ba..f8bff272c429 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -296,7 +296,10 @@ typedef void (*regmap_unlock)(void *); * a read. * @write_flag_mask: Mask to be set in the top bytes of the register when doing * a write. If both read_flag_mask and write_flag_mask are - * empty the regmap_bus default masks are used. + * empty and zero_flag_mask is not set the regmap_bus default + * masks are used. + * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even + * if they are both empty. * @use_single_rw: If set, converts the bulk read and write operations into * a series of single read and write operations. This is useful * for device that does not support bulk read and write. @@ -355,6 +358,7 @@ struct regmap_config { unsigned long read_flag_mask; unsigned long write_flag_mask; + bool zero_flag_mask; bool use_single_rw; bool can_multi_write; |