mfd: stmfx: 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/20240206071314.8721-17-liubo03@inspur.com
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/mfd/stmfx.c b/drivers/mfd/stmfx.c
index c02cbd9c2f5d798b01dc56e382a278bdc770506f..f391c2ccaa72a7a7d947fb69fbe5c4bed5238d39 100644 (file)
--- a/drivers/mfd/stmfx.c
+++ b/drivers/mfd/stmfx.c
@@ -53,7 +53,7 @@ static const struct regmap_config stmfx_regmap_config = {
        .max_register   = STMFX_REG_MAX,
        .volatile_reg   = stmfx_reg_volatile,
        .writeable_reg  = stmfx_reg_writeable,
-       .cache_type     = REGCACHE_RBTREE,
+       .cache_type     = REGCACHE_MAPLE,
 };
 
 static const struct resource stmfx_pinctrl_resources[] = {