redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

regmap: add regmap_fields_update_bits_base() 

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.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Kuninori Morimoto 2016-02-15 05:24:51 +00:00 committed by Mark Brown
parent 721ed64dda
commit e126edec18
2 changed files with 44 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/base/regmap/regmap.c
View File

@ -1716,6 +1716,38 @@ 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
*

12
include/linux/regmap.h
View File

@ -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");