The twl6040 is only capable of performing single register read and write operations which means it gains no advantage from using a rbtree register cache, convert it to using the more modern maple tree register cache instead. This should be more efficient. Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> --- drivers/mfd/twl6040.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c index e982119bbefa..523439a16b7c 100644 --- a/drivers/mfd/twl6040.c +++ b/drivers/mfd/twl6040.c @@ -608,7 +608,7 @@ static const struct regmap_config twl6040_regmap_config = { .volatile_reg = twl6040_volatile_reg, .writeable_reg = twl6040_writeable_reg, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .use_single_read = true, .use_single_write = true, }; --- base-commit: 9561de3a55bed6bdd44a12820ba81ec416e705a7 change-id: 20230609-mfd-twl6040-maple-0904598891f2 Best regards, -- Mark Brown <broonie@xxxxxxxxxx>