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regmap: Introduce regmap_get_max_register
This patch introduces regmap_get_max_register() function which would be used by the infrastructures like nvmem framework built on top of regmap. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -2613,6 +2613,18 @@ int regmap_get_val_bytes(struct regmap *map)
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}
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EXPORT_SYMBOL_GPL(regmap_get_val_bytes);
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/**
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* regmap_get_max_register(): Report the max register value
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*
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* Report the max register value, mainly intended to for use by
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* generic infrastructure built on top of regmap.
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*/
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int regmap_get_max_register(struct regmap *map)
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{
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return map->max_register ? map->max_register : -EINVAL;
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}
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EXPORT_SYMBOL_GPL(regmap_get_max_register);
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int regmap_parse_val(struct regmap *map, const void *buf,
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unsigned int *val)
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{
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@ -433,6 +433,7 @@ int regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
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unsigned int mask, unsigned int val,
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bool *change);
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int regmap_get_val_bytes(struct regmap *map);
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int regmap_get_max_register(struct regmap *map);
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int regmap_async_complete(struct regmap *map);
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bool regmap_can_raw_write(struct regmap *map);
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@ -676,6 +677,12 @@ static inline int regmap_get_val_bytes(struct regmap *map)
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return -EINVAL;
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}
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static inline int regmap_get_max_register(struct regmap *map)
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{
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WARN_ONCE(1, "regmap API is disabled");
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return -EINVAL;
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}
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static inline int regcache_sync(struct regmap *map)
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{
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WARN_ONCE(1, "regmap API is disabled");
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