mfd: rk8xx: Convert 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.

Signed-off-by: Bo Liu <liubo03@inspur.com>
Link: https://lore.kernel.org/r/20240206071314.8721-13-liubo03@inspur.com
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/mfd/rk8xx-spi.c b/drivers/mfd/rk8xx-spi.c
index fd137f38c2c4a74a6693a54859f74d01a0e2ddee..3405fb82ff9fbcf96743dc6cd3c61f38a108ca29 100644 (file)
--- a/drivers/mfd/rk8xx-spi.c
+++ b/drivers/mfd/rk8xx-spi.c
@@ -34,7 +34,7 @@ static const struct regmap_config rk806_regmap_config_spi = {
        .reg_bits = 16,
        .val_bits = 8,
        .max_register = RK806_BUCK_RSERVE_REG5,
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
        .volatile_table = &rk806_volatile_table,
 };