regmap: cache: Use raw I/O to sync rbtrees if we can
This will bring no meaningful benefit by itself, it is done as a separate commit to aid bisection if there are problems with the following commits adding support for coalescing adjacent writes. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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221ad7f2df
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1 changed files with 18 additions and 1 deletions
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@ -55,6 +55,12 @@ static unsigned int regcache_rbtree_get_register(struct regmap *map,
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return regcache_get_val(map, rbnode->block, idx);
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return regcache_get_val(map, rbnode->block, idx);
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}
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}
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static const void *regcache_rbtree_get_reg_addr(struct regmap *map,
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struct regcache_rbtree_node *rbnode, unsigned int idx)
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{
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return regcache_get_val_addr(map, rbnode->block, idx);
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}
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static void regcache_rbtree_set_register(struct regmap *map,
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static void regcache_rbtree_set_register(struct regmap *map,
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struct regcache_rbtree_node *rbnode,
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struct regcache_rbtree_node *rbnode,
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unsigned int idx, unsigned int val)
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unsigned int idx, unsigned int val)
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@ -442,6 +448,7 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min,
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struct regcache_rbtree_node *rbnode;
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struct regcache_rbtree_node *rbnode;
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unsigned int regtmp;
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unsigned int regtmp;
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unsigned int val;
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unsigned int val;
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const void *addr;
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int ret;
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int ret;
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int i, base, end;
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int i, base, end;
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@ -480,7 +487,17 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min,
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continue;
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continue;
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map->cache_bypass = 1;
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map->cache_bypass = 1;
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if (regmap_can_raw_write(map)) {
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addr = regcache_rbtree_get_reg_addr(map,
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rbnode, i);
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ret = _regmap_raw_write(map, regtmp, addr,
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map->format.val_bytes,
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false);
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} else {
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ret = _regmap_write(map, regtmp, val);
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ret = _regmap_write(map, regtmp, val);
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}
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map->cache_bypass = 0;
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map->cache_bypass = 0;
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if (ret)
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if (ret)
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return ret;
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return ret;
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