regulator: ltc3589: Use maple tree register cache

The ltc3589 can only support single register read and write operations
so does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-regulator-ltc-maple-v1-1-08c15181f8b2@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c
index 149ac281c1f9dbc6e87322a4cebe88822724c710..e9751c206d951246b485517fa32a77ded412a7fd 100644 (file)
--- a/drivers/regulator/ltc3589.c
+++ b/drivers/regulator/ltc3589.c
@@ -348,7 +348,7 @@ static const struct regmap_config ltc3589_regmap_config = {
        .num_reg_defaults = ARRAY_SIZE(ltc3589_reg_defaults),
        .use_single_read = true,
        .use_single_write = true,
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
 };
 
 static irqreturn_t ltc3589_isr(int irq, void *dev_id)