leds: lm392x: 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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: broonie

drivers/leds/leds-lm3692x.c

@@ -139,7 +139,7 @@ static const struct regmap_config lm3692x_regmap_config = {
 	.max_register = LM3692X_FAULT_FLAGS,
 	.reg_defaults = lm3692x_reg_defs,
 	.num_reg_defaults = ARRAY_SIZE(lm3692x_reg_defs),
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int lm3692x_fault_check(struct lm3692x_led *led)