mfd: max8907: 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: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231001-mfd-maxim-maple-v1-3-cdfeb48a4d15@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/mfd/max8907.c b/drivers/mfd/max8907.c
index 8bbe7979db914537bfcd5d5ac3f8e362125a02e8..accf426234b66bc35296700d51d4e18659b12f2f 100644 (file)
--- a/drivers/mfd/max8907.c
+++ b/drivers/mfd/max8907.c
@@ -63,7 +63,7 @@ static const struct regmap_config max8907_regmap_gen_config = {
        .precious_reg = max8907_gen_is_precious_reg,
        .writeable_reg = max8907_gen_is_writeable_reg,
        .max_register = MAX8907_REG_LDO20VOUT,
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
 };
 
 static bool max8907_rtc_is_volatile_reg(struct device *dev, unsigned int reg)
@@ -108,7 +108,7 @@ static const struct regmap_config max8907_regmap_rtc_config = {
        .precious_reg = max8907_rtc_is_precious_reg,
        .writeable_reg = max8907_rtc_is_writeable_reg,
        .max_register = MAX8907_REG_MPL_CNTL,
-       .cache_type = REGCACHE_RBTREE,
+       .cache_type = REGCACHE_MAPLE,
 };
 
 static const struct regmap_irq max8907_chg_irqs[] = {