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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>
This commit is contained in:
Kuninori Morimoto 2016-02-15 05:23:55 +00:00 committed by Mark Brown
parent 89d8d4b833
commit 28972eaa34
2 changed files with 38 additions and 1 deletions
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27
drivers/base/regmap/regmap.c
View File

@ -1689,6 +1689,33 @@ 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
*

12
include/linux/regmap.h
View File

@ -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");