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regmap: Implement dev_get_regmap()

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Use devres to implement dev_get_regmap(). This should mean that in almost
all cases devices wishing to take advantage of framework features based on
regmap shouldn't need to explicitly pass the regmap into the framework.
This simplifies device setup a bit.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown
2012-05-08 17:44:40 +01:00
parent 851960ba7c
commit 72b39f6f2b
3 changed files with 69 additions and 1 deletions
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8
include/linux/regmap.h
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@@ -156,6 +156,7 @@ struct regmap *devm_regmap_init_mmio(struct device *dev,
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);
int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
int regmap_raw_write(struct regmap *map, unsigned int reg,
const void *val, size_t val_len);
@@ -340,6 +341,13 @@ static inline int regmap_register_patch(struct regmap *map,
return -EINVAL;
}
static inline struct regmap *dev_get_regmap(struct device *dev,
const char *name)
{
WARN_ONCE(1, "regmap API is disabled");
return NULL;
}
#endif
#endif