linux-kernel - [PATCH] hwmon: convert to use maple tree register cache

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Message-ID: <20250424010829.2610-1-liubo03@inspur.com>
Date: Wed, 23 Apr 2025 21:08:29 -0400
From: Bo Liu <liubo03@...pur.com>
To: <mail@...sten-spiess.de>, <jdelvare@...e.com>, <linux@...ck-us.net>,
	<kcfeng0@...oton.com>
CC: <linux-hwmon@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Bo Liu
	<liubo03@...pur.com>
Subject: [PATCH] hwmon: 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: Bo Liu <liubo03@...pur.com>
---
 drivers/hwmon/isl28022.c | 2 +-
 drivers/hwmon/nct7363.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/isl28022.c b/drivers/hwmon/isl28022.c
index 1fb9864635db..0f27ac556f51 100644
--- a/drivers/hwmon/isl28022.c
+++ b/drivers/hwmon/isl28022.c
@@ -301,7 +301,7 @@ static const struct regmap_config isl28022_regmap_config = {
 	.writeable_reg = isl28022_is_writeable_reg,
 	.volatile_reg = isl28022_is_volatile_reg,
 	.val_format_endian = REGMAP_ENDIAN_BIG,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.use_single_read = true,
 	.use_single_write = true,
 };
diff --git a/drivers/hwmon/nct7363.c b/drivers/hwmon/nct7363.c
index be7bf32f6e68..e13ab918b1ab 100644
--- a/drivers/hwmon/nct7363.c
+++ b/drivers/hwmon/nct7363.c
@@ -391,7 +391,7 @@ static const struct regmap_config nct7363_regmap_config = {
 	.val_bits = 8,
 	.use_single_read = true,
 	.use_single_write = true,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.volatile_reg = nct7363_regmap_is_volatile,
 };
 
-- 
2.31.1