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 stac9766 driver to use the more modern data structure.
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
sound/soc/codecs/stac9766.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/stac9766.c b/sound/soc/codecs/stac9766.c
index 1824a71fe053..2f9f10a4dfed 100644
--- a/sound/soc/codecs/stac9766.c
+++ b/sound/soc/codecs/stac9766.c
@@ -67,7 +67,7 @@ static const struct regmap_config stac9766_regmap_config = {
.reg_stride = 2,
.val_bits = 16,
.max_register = 0x78,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.volatile_reg = regmap_ac97_default_volatile,
--
2.39.2
