mfd: khadas-mcu: 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>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240206071314.8721-9-liubo03@inspur.com
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/mfd/khadas-mcu.c b/drivers/mfd/khadas-mcu.c
index 61396d824f16df67cfde41c1fe27310da1ca95be..ba981a78869215c66a20276f3afe235775c06ea3 100644 (file)
--- a/drivers/mfd/khadas-mcu.c
+++ b/drivers/mfd/khadas-mcu.c
@@ -72,7 +72,7 @@ static const struct regmap_config khadas_mcu_regmap_config = {
        .max_register   = KHADAS_MCU_CMD_FAN_STATUS_CTRL_REG,
        .volatile_reg   = khadas_mcu_reg_volatile,
        .writeable_reg  = khadas_mcu_reg_writeable,
-       .cache_type     = REGCACHE_RBTREE,
+       .cache_type     = REGCACHE_MAPLE,
 };
 
 static struct mfd_cell khadas_mcu_fan_cells[] = {