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regmap: cache: Provide a get address of value operation
Provide a helper to do the size based index into a block of registers and use it when reading a value. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -189,6 +189,13 @@ int regcache_write(struct regmap *map,
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unsigned int reg, unsigned int value);
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int regcache_sync(struct regmap *map);
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static inline const void *regcache_get_val_addr(struct regmap *map,
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const void *base,
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unsigned int idx)
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{
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return base + (map->cache_word_size * idx);
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}
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unsigned int regcache_get_val(struct regmap *map, const void *base,
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unsigned int idx);
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bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
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@ -458,8 +458,8 @@ unsigned int regcache_get_val(struct regmap *map, const void *base,
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/* Use device native format if possible */
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if (map->format.parse_val)
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return map->format.parse_val(base +
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(map->cache_word_size * idx));
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return map->format.parse_val(regcache_get_val_addr(map, base,
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idx));
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switch (map->cache_word_size) {
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case 1: {
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