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 wm8971 driver to use the more modern data structure.
Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/wm8971.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c index b22d8f0b59be..e88f323d28b2 100644 --- a/sound/soc/codecs/wm8971.c +++ b/sound/soc/codecs/wm8971.c @@ -668,7 +668,7 @@ static const struct regmap_config wm8971_regmap = {
.reg_defaults = wm8971_reg_defaults, .num_reg_defaults = ARRAY_SIZE(wm8971_reg_defaults), - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, };
static int wm8971_i2c_probe(struct i2c_client *i2c)