ASoC: wcd938x: 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 wcd938x driver to use the more modern data structure.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230712-asoc-qcom-maple-v1-2-15f8089664b9@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c
index bd0e9fbc12ebfb3fdbd445ed790871dd5b2eb89a..6951120057e55d97f9f6513363f354aa4ef03c7d 100644 (file)
--- 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,