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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-03-13 15:29:36 -0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-03-26 17:38:16 -0400
commit8817796b75c8847d63d6d4523c79c24b47748a05 (patch)
treeafa323b0fc93ec618da94bc54b40c2047c8a422c /drivers/base
parent0c7ed8563a0282c032936ae1c667498d59691593 (diff)
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>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/regmap/internal.h7
-rw-r--r--drivers/base/regmap/regcache.c4
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 6d409350f50a..95d46a5ea7e7 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -189,6 +189,13 @@ int regcache_write(struct regmap *map,
189 unsigned int reg, unsigned int value); 189 unsigned int reg, unsigned int value);
190int regcache_sync(struct regmap *map); 190int regcache_sync(struct regmap *map);
191 191
192static inline const void *regcache_get_val_addr(struct regmap *map,
193 const void *base,
194 unsigned int idx)
195{
196 return base + (map->cache_word_size * idx);
197}
198
192unsigned int regcache_get_val(struct regmap *map, const void *base, 199unsigned int regcache_get_val(struct regmap *map, const void *base,
193 unsigned int idx); 200 unsigned int idx);
194bool regcache_set_val(struct regmap *map, void *base, unsigned int idx, 201bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 0f4fb8bc37e5..229c804e409e 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -458,8 +458,8 @@ unsigned int regcache_get_val(struct regmap *map, const void *base,
458 458
459 /* Use device native format if possible */ 459 /* Use device native format if possible */
460 if (map->format.parse_val) 460 if (map->format.parse_val)
461 return map->format.parse_val(base + 461 return map->format.parse_val(regcache_get_val_addr(map, base,
462 (map->cache_word_size * idx)); 462 idx));
463 463
464 switch (map->cache_word_size) { 464 switch (map->cache_word_size) {
465 case 1: { 465 case 1: {