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regmap: Add regmap_get_device 

Add a new function regmap_get_device to obtain the underlying struct
device from a regmap.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Tuomas Tynkkynen 2014-07-21 18:38:47 +03:00 committed by Mark Brown
parent 7171511eae
commit 8d7d3972a9
2 changed files with 19 additions and 0 deletions
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12
drivers/base/regmap/regmap.c
View File

@ -1073,6 +1073,18 @@ struct regmap *dev_get_regmap(struct device *dev, const char *name)
}
EXPORT_SYMBOL_GPL(dev_get_regmap);
/**
* regmap_get_device(): Obtain the device from a regmap
*
* @map: Register map to operate on.
*
* Returns the underlying device that the regmap has been created for.
*/
struct device *regmap_get_device(struct regmap *map)
{
return map->dev;
}
static int _regmap_select_page(struct regmap *map, unsigned int *reg,
struct regmap_range_node *range,
unsigned int val_num)

7
include/linux/regmap.h
View File

@ -396,6 +396,7 @@ void regmap_exit(struct regmap *map);
int regmap_reinit_cache(struct regmap *map,
const struct regmap_config *config);
struct regmap *dev_get_regmap(struct device *dev, const char *name);
struct device *regmap_get_device(struct regmap *map);
int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val);
int regmap_raw_write(struct regmap *map, unsigned int reg,
@ -729,6 +730,12 @@ static inline struct regmap *dev_get_regmap(struct device *dev,
return NULL;
}
static inline struct device *regmap_get_device(struct regmap *map)
{
WARN_ONCE(1, "regmap API is disabled");
return -EINVAL;
}
#endif
#endif