regmap: add regmap_field_update_bits_base()

This patch adds new regmap_field_update_bits_base() which is using
regmap_update_bits_base().
Current regmap_field_xxx() can be merged into it by macro.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

2 files changed, 38 insertions, 1 deletions

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 015135a656b7..e534105f47f6 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1690,6 +1690,33 @@ int regmap_raw_write(struct regmap *map, unsigned int reg,
 EXPORT_SYMBOL_GPL(regmap_raw_write);
 
 /**
+ * regmap_field_update_bits_base():
+ *      Perform a read/modify/write cycle on the register field
+ *      with change, async, force option
+ *
+ * @field: Register field to write to
+ * @mask: Bitmask to change
+ * @val: Value to be written
+ * @change: Boolean indicating if a write was done
+ * @async: Boolean indicating asynchronously
+ * @force: Boolean indicating use force update
+ *
+ * A value of zero will be returned on success, a negative errno will
+ * be returned in error cases.
+ */
+int regmap_field_update_bits_base(struct regmap_field *field,
+                                  unsigned int mask, unsigned int val,
+                                  bool *change, bool async, bool force)
+{
+        mask = (mask << field->shift) & field->mask;
+
+        return regmap_update_bits_base(field->regmap, field->reg,
+                                       mask, val << field->shift,
+                                       change, async, force);
+}
+EXPORT_SYMBOL_GPL(regmap_field_update_bits_base);
+
+/**
  * regmap_field_write(): Write a value to a single register field
  *
  * @field: Register field to write to
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 4d8e1edb4407..23bf7657e485 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -773,9 +773,11 @@ void devm_regmap_field_free(struct device *dev,	struct regmap_field *field);
 
 int regmap_field_read(struct regmap_field *field, unsigned int *val);
 int regmap_field_write(struct regmap_field *field, unsigned int val);
+int regmap_field_update_bits_base(struct regmap_field *field,
+                                  unsigned int mask, unsigned int val,
+                                  bool *change, bool async, bool force);
 int regmap_field_update_bits(struct regmap_field *field,
                              unsigned int mask, unsigned int val);
-
 int regmap_fields_write(struct regmap_field *field, unsigned int id,
                         unsigned int val);
 int regmap_fields_force_write(struct regmap_field *field, unsigned int id,
@@ -954,6 +956,14 @@ static inline int regmap_write_bits(struct regmap *map, unsigned int reg,
         return -EINVAL;
 }
 
+static inline int regmap_field_update_bits_base(struct regmap_field *field,
+                                        unsigned int mask, unsigned int val,
+                                        bool *change, bool async, bool force)
+{
+        WARN_ONCE(1, "regmap API is disabled");
+        return -EINVAL;
+}
+
 static inline int regmap_get_val_bytes(struct regmap *map)
 {
         WARN_ONCE(1, "regmap API is disabled");