ASoC: sti-sas: 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 sti-sas driver to use the more modern data structure.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230712-asoc-st-maple-v1-5-46eab2c0ce23@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/sti-sas.c b/sound/soc/codecs/sti-sas.c
index 99545bcb2ba9edba86c223ea80ea29ffd174d4ca..c421906a0694fef5f4ce70ccae374b54a9897568 100644 (file)
--- a/sound/soc/codecs/sti-sas.c
+++ b/sound/soc/codecs/sti-sas.c
@@ -316,7 +316,7 @@ static const struct regmap_config stih407_sas_regmap = {
        .reg_defaults = stih407_sas_reg_defaults,
        .num_reg_defaults = ARRAY_SIZE(stih407_sas_reg_defaults),
        .volatile_reg = sti_sas_volatile_register,
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
        .reg_read = sti_sas_read_reg,
        .reg_write = sti_sas_write_reg,
 };