mfd: wm8994: 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 wm8994 driver to use the more modern data structure.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230713-mfd-cirrus-maple-v1-9-16dacae402a8@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/mfd/wm8994-regmap.c b/drivers/mfd/wm8994-regmap.c
index cd4fef7..ee2ed67 100644 (file)
--- a/drivers/mfd/wm8994-regmap.c
+++ b/drivers/mfd/wm8994-regmap.c
@@ -1238,7 +1238,7 @@ struct regmap_config wm1811_regmap_config = {
        .reg_bits = 16,
        .val_bits = 16,
 
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
 
        .reg_defaults = wm1811_defaults,
        .num_reg_defaults = ARRAY_SIZE(wm1811_defaults),
@@ -1253,7 +1253,7 @@ struct regmap_config wm8994_regmap_config = {
        .reg_bits = 16,
        .val_bits = 16,
 
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
 
        .reg_defaults = wm8994_defaults,
        .num_reg_defaults = ARRAY_SIZE(wm8994_defaults),
@@ -1268,7 +1268,7 @@ struct regmap_config wm8958_regmap_config = {
        .reg_bits = 16,
        .val_bits = 16,
 
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
 
        .reg_defaults = wm8958_defaults,
        .num_reg_defaults = ARRAY_SIZE(wm8958_defaults),