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regmap: add regmap_parse_val api

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In some cases, we need regmap's format parse_val function
to do be/le translation according to the bus configuration.
For example, snd_soc_bytes_put() uses regmap to write/read values,
and use cpu_to_be() directly to covert MASK into big endian. This
is a defect, and should use regmap's format function to do it according
to bus configuration.

Signed-off-by: Nenghua Cao <nhcao@marvell.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Nenghua Cao 2014-02-19 18:44:13 +08:00 • committed by Mark Brown
commit 13ff50c858
2 changed files with 21 additions and 0 deletions
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12
drivers/base/regmap/regmap.c
View file

@ -2240,6 +2240,18 @@ int regmap_get_val_bytes(struct regmap *map)
} }
EXPORT_SYMBOL_GPL(regmap_get_val_bytes); EXPORT_SYMBOL_GPL(regmap_get_val_bytes);
int regmap_parse_val(struct regmap *map, const void *buf,
unsigned int *val)
{
if (!map->format.parse_val)
return -EINVAL;
*val = map->format.parse_val(buf);
return 0;
}
EXPORT_SYMBOL_GPL(regmap_parse_val);
static int __init regmap_initcall(void) static int __init regmap_initcall(void)
{ {
regmap_debugfs_initcall(); regmap_debugfs_initcall();

9
include/linux/regmap.h
View file

@ -423,6 +423,8 @@ bool regmap_check_range_table(struct regmap *map, unsigned int reg,
int regmap_register_patch(struct regmap *map, const struct reg_default *regs, int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
int num_regs); int num_regs);
int regmap_parse_val(struct regmap *map, const void *buf,
unsigned int *val);
static inline bool regmap_reg_in_range(unsigned int reg, static inline bool regmap_reg_in_range(unsigned int reg,
const struct regmap_range *range) const struct regmap_range *range)
@ -695,6 +697,13 @@ static inline int regmap_register_patch(struct regmap *map,
return -EINVAL; return -EINVAL;
} }
static inline int regmap_parse_val(struct regmap *map, const void *buf,
unsigned int *val)
{
WARN_ONCE(1, "regmap API is disabled");
return -EINVAL;
}
static inline struct regmap *dev_get_regmap(struct device *dev, static inline struct regmap *dev_get_regmap(struct device *dev,
const char *name) const char *name)
{ {