ASoC: wm8983: 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 wm8983 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-v1-43-a62651831735@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/wm8983.c b/sound/soc/codecs/wm8983.c
index 2bd26e2478d9680ee480064d9b1b8443a3fdc599..b26d6a68e8d2c2c186c36b8044a6029adbc22dc1 100644 (file)
--- a/sound/soc/codecs/wm8983.c
+++ b/sound/soc/codecs/wm8983.c
@@ -995,7 +995,7 @@ static const struct regmap_config wm8983_regmap = {
 
        .reg_defaults = wm8983_defaults,
        .num_reg_defaults = ARRAY_SIZE(wm8983_defaults),
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
        .max_register = WM8983_MAX_REGISTER,
 
        .writeable_reg = wm8983_writeable,