[PATCH 09/15 v2][RFC] regmap: add regmap_fields_update_bits_base()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto...@renesas.com>

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

Signed-off-by: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
---
 drivers/base/regmap/regmap.c | 32 ++++++++++++++++++++++++++++++++
 include/linux/regmap.h       | 12 ++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 606c9b5..0c7773f 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1717,6 +1717,38 @@ int regmap_field_update_bits_base(struct regmap_field 
*field,
 EXPORT_SYMBOL_GPL(regmap_field_update_bits_base);
 
 /**
+ * regmap_fields_update_bits_base():
+ *     Perform a read/modify/write cycle on the register field
+ *     with change, async, force option
+ *
+ * @field: Register field to write to
+ * @id: port ID
+ * @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_fields_update_bits_base(struct regmap_field *field,  unsigned int 
id,
+                                  unsigned int mask, unsigned int val,
+                                  bool *change, bool async, bool force)
+{
+       if (id >= field->id_size)
+               return -EINVAL;
+
+       mask = (mask << field->shift) & field->mask;
+
+       return regmap_update_bits_base(field->regmap,
+                                      field->reg + (field->id_offset * id),
+                                      mask, val << field->shift,
+                                      change, async, force);
+}
+EXPORT_SYMBOL_GPL(regmap_fields_update_bits_base);
+
+/**
  * regmap_fields_write(): Write a value to a single register field with port ID
  *
  * @field: Register field to write to
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index e525bee..2735a3d 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -788,6 +788,9 @@ int regmap_fields_read(struct regmap_field *field, unsigned 
int id,
                       unsigned int *val);
 int regmap_fields_update_bits(struct regmap_field *field,  unsigned int id,
                              unsigned int mask, unsigned int val);
+int regmap_fields_update_bits_base(struct regmap_field *field,  unsigned int 
id,
+                                  unsigned int mask, unsigned int val,
+                                  bool *change, bool async, bool force);
 
 /**
  * Description of an IRQ for the generic regmap irq_chip.
@@ -966,6 +969,15 @@ static inline int regmap_field_update_bits_base(struct 
regmap_field *field,
        return -EINVAL;
 }
 
+static inline int regmap_fields_update_bits_base(struct regmap_field *field,
+                                  unsigned int id,
+                                  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");
-- 
1.9.1