ASoC: wm8804: 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 wm8804 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-v1-28-a62651831735@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/wm8804.c b/sound/soc/codecs/wm8804.c
index 0b234bae480e117b515721fa71005c9cc8883083..bbb4b6e3b41cfedc111d725b3ca24308a8d3b2a3 100644 (file)
--- a/sound/soc/codecs/wm8804.c
+++ b/sound/soc/codecs/wm8804.c
@@ -555,7 +555,7 @@ const struct regmap_config wm8804_regmap_config = {
        .max_register = WM8804_MAX_REGISTER,
        .volatile_reg = wm8804_volatile,
 
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
        .reg_defaults = wm8804_reg_defaults,
        .num_reg_defaults = ARRAY_SIZE(wm8804_reg_defaults),
 };