linux-kernel - [PATCH 3/3] mfd: max8907: Convert to use maple tree register cache

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Message-Id: <20231001-mfd-maxim-maple-v1-3-cdfeb48a4d15@kernel.org>
Date:   Sun, 01 Oct 2023 00:47:07 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Lee Jones <lee@...nel.org>, Chanwoo Choi <cw00.choi@...sung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: [PATCH 3/3] 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@...nel.org>
---
 drivers/mfd/max8907.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/max8907.c b/drivers/mfd/max8907.c
index 8bbe7979db91..accf426234b6 100644
--- 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[] = {

-- 
2.39.2