ASoC: wm8770: Update to use maple tree register cache

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 wm8770 driver to use the more modern data structure.

Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230713-asoc-cirrus-maple-v1-26-a62651831735@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/wm8770.c b/sound/soc/codecs/wm8770.c
index e03fee8869c371995a6bfe67a6b4ab94315eb202..2469f4f3bea355f199cc3a86e60b2ae9a43509dc 100644 (file)
--- a/sound/soc/codecs/wm8770.c
+++ b/sound/soc/codecs/wm8770.c
@@ -632,7 +632,7 @@ static const struct regmap_config wm8770_regmap = {
 
        .reg_defaults = wm8770_reg_defaults,
        .num_reg_defaults = ARRAY_SIZE(wm8770_reg_defaults),
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
 
        .volatile_reg = wm8770_volatile_reg,
 };