drm/rockchip: vop2: 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: Mark Brown <broonie@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20231001-drm-rockchip-maple-v1-1-ca396ab75be7@kernel.org

drivers/gpu/drm/rockchip/rockchip_drm_vop2.c

@@ -2640,7 +2640,7 @@ static const struct regmap_config vop2_regmap_config = {
 	.max_register	= 0x3000,
 	.name		= "vop2",
 	.volatile_table	= &vop2_volatile_table,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static int vop2_bind(struct device *dev, struct device *master, void *data)