drm/bridge: adv7511: 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>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230929-drm-adv7511-v1-1-b871b28ee594@kernel.org

drivers/gpu/drm/bridge/adv7511/adv7511_drv.c

@@ -121,7 +121,7 @@ static const struct regmap_config adv7511_regmap_config = {
 	.val_bits = 8,
 
 	.max_register = 0xff,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.reg_defaults_raw = adv7511_register_defaults,
 	.num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults),
 
@@ -1068,7 +1068,7 @@ static const struct regmap_config adv7511_cec_regmap_config = {
 	.val_bits = 8,
 
 	.max_register = 0xff,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.volatile_reg = adv7511_cec_register_volatile,
 };