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Diffstat (limited to 'drivers/base/regmap')
-rw-r--r--drivers/base/regmap/regmap.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 9174c9d45a16..9ab1e1fedbc9 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1097,6 +1097,17 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
return ret;
}
+/**
+ * regmap_can_raw_write - Test if regmap_raw_write() is supported
+ *
+ * @map: Map to check.
+ */
+bool regmap_can_raw_write(struct regmap *map)
+{
+ return map->bus && map->format.format_val && map->format.format_reg;
+}
+EXPORT_SYMBOL_GPL(regmap_can_raw_write);
+
static int _regmap_bus_formatted_write(void *context, unsigned int reg,
unsigned int val)
{
@@ -1220,12 +1231,10 @@ int regmap_raw_write(struct regmap *map, unsigned int reg,
{
int ret;
- if (!map->bus)
+ if (!regmap_can_raw_write(map))
return -EINVAL;
if (val_len % map->format.val_bytes)
return -EINVAL;
- if (reg % map->reg_stride)
- return -EINVAL;
map->lock(map->lock_arg);