linux-kernel - [PATCH 06/10] iio: imu: icm42600: convert to use maple tree register cache

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Message-ID: <20250611085838.4761-7-chuguangqing@inspur.com>
Date: Wed, 11 Jun 2025 16:58:34 +0800
From: chuguangqing <chuguangqing@...pur.com>
To: Jonathan Cameron <jic23@...nel.org>, Lars-Peter Clausen <lars@...afoo.de>,
	Michael Hennerich <Michael.Hennerich@...log.com>, Jean-Baptiste Maneyrol
	<jmaneyrol@...ensense.com>
CC: <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>, chuguangqing
	<chuguangqing@...pur.com>
Subject: [PATCH 06/10] iio: imu: icm42600: 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: chuguangqing <chuguangqing@...pur.com>
---
 drivers/iio/imu/inv_icm42600/inv_icm42600_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
index 63d46619ebfa..1fc4fddc2029 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
@@ -83,7 +83,7 @@ const struct regmap_config inv_icm42600_regmap_config = {
 	.num_ranges = ARRAY_SIZE(inv_icm42600_regmap_ranges),
 	.volatile_table = inv_icm42600_regmap_volatile_accesses,
 	.rd_noinc_table = inv_icm42600_regmap_rd_noinc_accesses,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 EXPORT_SYMBOL_NS_GPL(inv_icm42600_regmap_config, "IIO_ICM42600");
 
@@ -97,7 +97,7 @@ const struct regmap_config inv_icm42600_spi_regmap_config = {
 	.num_ranges = ARRAY_SIZE(inv_icm42600_regmap_ranges),
 	.volatile_table = inv_icm42600_regmap_volatile_accesses,
 	.rd_noinc_table = inv_icm42600_regmap_rd_noinc_accesses,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.use_single_write = true,
 };
 EXPORT_SYMBOL_NS_GPL(inv_icm42600_spi_regmap_config, "IIO_ICM42600");
-- 
2.31.1