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

regmap: merge regmap_update_bits_async() into macro 

Current regmap has many similar update functions like below,
but the difference is very few.
	regmap_update_bits()
	regmap_update_bits_async()
	regmap_update_bits_check()
	regmap_update_bits_check_async()
Furthermore, we can add *force* write option too in the future.

This patch merges regmap_update_bits_async() into macro
by using regmap_update_bits_base().

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 05:23:01 +00:00 committed by Mark Brown
parent ca7a94464b
commit 30ed9cb7a4
2 changed files with 2 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/base/regmap/regmap.c
View File

@ -2710,40 +2710,6 @@ int regmap_write_bits(struct regmap *map, unsigned int reg,
}
EXPORT_SYMBOL_GPL(regmap_write_bits);
/**
* regmap_update_bits_async: Perform a read/modify/write cycle on the register
* map asynchronously
*
* @map: Register map to update
* @reg: Register to update
* @mask: Bitmask to change
* @val: New value for bitmask
*
* With most buses the read must be done synchronously so this is most
* useful for devices with a cache which do not need to interact with
* the hardware to determine the current register value.
*
* Returns zero for success, a negative number on error.
*/
int regmap_update_bits_async(struct regmap *map, unsigned int reg,
unsigned int mask, unsigned int val)
{
int ret;
map->lock(map->lock_arg);
map->async = true;
ret = _regmap_update_bits(map, reg, mask, val, NULL, false);
map->async = false;
map->unlock(map->lock_arg);
return ret;
}
EXPORT_SYMBOL_GPL(regmap_update_bits_async);
/**
* regmap_update_bits_check: Perform a read/modify/write cycle on the
* register map and report if updated

12
include/linux/regmap.h
View File

@ -67,6 +67,8 @@ struct reg_sequence {
#define regmap_update_bits(map, reg, mask, val) \
regmap_update_bits_base(map, reg, mask, val, NULL, false, false)
#define regmap_update_bits_async(map, reg, mask, val)\
regmap_update_bits_base(map, reg, mask, val, NULL, true, false)
#ifdef CONFIG_REGMAP
@ -699,8 +701,6 @@ int regmap_update_bits_base(struct regmap *map, unsigned int reg,
bool *change, bool async, bool force);
int regmap_write_bits(struct regmap *map, unsigned int reg,
unsigned int mask, unsigned int val);
int regmap_update_bits_async(struct regmap *map, unsigned int reg,
unsigned int mask, unsigned int val);
int regmap_update_bits_check(struct regmap *map, unsigned int reg,
unsigned int mask, unsigned int val,
bool *change);
@ -956,14 +956,6 @@ static inline int regmap_write_bits(struct regmap *map, unsigned int reg,
return -EINVAL;
}
static inline int regmap_update_bits_async(struct regmap *map,
unsigned int reg,
unsigned int mask, unsigned int val)
{
WARN_ONCE(1, "regmap API is disabled");
return -EINVAL;
}
static inline int regmap_update_bits_check(struct regmap *map,
unsigned int reg,
unsigned int mask, unsigned int val,