iio: light: apds9960: 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: Chu Guangqing <chuguangqing@inspur.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c
index 79b202c59a0f1a36b036c988823fe13acdda5876..785c5dbe2d08585d36b12419e46d8dbff7271af5 100644 (file)
--- a/drivers/iio/light/apds9960.c
+++ b/drivers/iio/light/apds9960.c
@@ -234,7 +234,7 @@ static const struct regmap_config apds9960_regmap_config = {
        .reg_defaults = apds9960_reg_defaults,
        .num_reg_defaults = ARRAY_SIZE(apds9960_reg_defaults),
        .max_register = APDS9960_REG_GFIFO_DIR(RIGHT),
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
 };
 
 static const struct iio_event_spec apds9960_pxs_event_spec[] = {