diff options
Diffstat (limited to 'drivers/base/regmap/regmap.c')
-rw-r--r-- | drivers/base/regmap/regmap.c | 15 |
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, | |||
1097 | return ret; | 1097 | return ret; |
1098 | } | 1098 | } |
1099 | 1099 | ||
1100 | /** | ||
1101 | * regmap_can_raw_write - Test if regmap_raw_write() is supported | ||
1102 | * | ||
1103 | * @map: Map to check. | ||
1104 | */ | ||
1105 | bool regmap_can_raw_write(struct regmap *map) | ||
1106 | { | ||
1107 | return map->bus && map->format.format_val && map->format.format_reg; | ||
1108 | } | ||
1109 | EXPORT_SYMBOL_GPL(regmap_can_raw_write); | ||
1110 | |||
1100 | static int _regmap_bus_formatted_write(void *context, unsigned int reg, | 1111 | static int _regmap_bus_formatted_write(void *context, unsigned int reg, |
1101 | unsigned int val) | 1112 | unsigned int val) |
1102 | { | 1113 | { |
@@ -1220,12 +1231,10 @@ int regmap_raw_write(struct regmap *map, unsigned int reg, | |||
1220 | { | 1231 | { |
1221 | int ret; | 1232 | int ret; |
1222 | 1233 | ||
1223 | if (!map->bus) | 1234 | if (!regmap_can_raw_write(map)) |
1224 | return -EINVAL; | 1235 | return -EINVAL; |
1225 | if (val_len % map->format.val_bytes) | 1236 | if (val_len % map->format.val_bytes) |
1226 | return -EINVAL; | 1237 | return -EINVAL; |
1227 | if (reg % map->reg_stride) | ||
1228 | return -EINVAL; | ||
1229 | 1238 | ||
1230 | map->lock(map->lock_arg); | 1239 | map->lock(map->lock_arg); |
1231 | 1240 | ||