[PATCH 03/15 v2][RFC] regmap: merge regmap_update_bits_async() into macro
From: Kuninori Morimoto
Date: Mon Feb 15 2016 - 00:23:14 EST
From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
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@xxxxxxxxxxx>
---
drivers/base/regmap/regmap.c | 34 ----------------------------------
include/linux/regmap.h | 12 ++----------
2 files changed, 2 insertions(+), 44 deletions(-)
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 281898a..c2255f6 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2711,40 +2711,6 @@ 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
*
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 500b36c..90c8b0e 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -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,
--
1.9.1