The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. In v6.5 it has also acquired the ability to generate multi-register writes in sync operations, bringing performance up to parity with the rbtree cache there.
Update the wcd938x driver to use the more modern data structure.
Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/wcd938x-sdw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c index bd0e9fbc12eb..6951120057e5 100644 --- a/sound/soc/codecs/wcd938x-sdw.c +++ b/sound/soc/codecs/wcd938x-sdw.c @@ -1183,7 +1183,7 @@ static const struct regmap_config wcd938x_regmap_config = { .name = "wcd938x_csr", .reg_bits = 32, .val_bits = 8, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .reg_defaults = wcd938x_defaults, .num_reg_defaults = ARRAY_SIZE(wcd938x_defaults), .max_register = WCD938X_MAX_REGISTER,