linux-kernel - [PATCH 1/4] iio: adc: ade9000: convert to use maple tree register cache

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Message-ID: <20251024073823.35122-2-chuguangqing@inspur.com>
Date: Fri, 24 Oct 2025 15:38:20 +0800
From: Chu Guangqing <chuguangqing@...pur.com>
To: <lars@...afoo.de>, <Michael.Hennerich@...log.com>, <jic23@...nel.org>,
	<dlechner@...libre.com>, <nuno.sa@...log.com>, <andy@...nel.org>,
	<subhajit.ghosh@...aklogic.com>, <javier.carrasco.cruz@...il.com>
CC: <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Chu Guangqing
	<chuguangqing@...pur.com>
Subject: [PATCH 1/4] iio: adc: ade9000: 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@...pur.com>
---
 drivers/iio/adc/ade9000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ade9000.c b/drivers/iio/adc/ade9000.c
index 94e05e11abd9..2de8a718d62a 100644
--- a/drivers/iio/adc/ade9000.c
+++ b/drivers/iio/adc/ade9000.c
@@ -1629,7 +1629,7 @@ static const struct regmap_config ade9000_regmap_config = {
 	.val_bits = 32,
 	.max_register = 0x6bc,
 	.zero_flag_mask = true,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.reg_read = ade9000_spi_read_reg,
 	.reg_write = ade9000_spi_write_reg,
 	.volatile_reg = ade9000_is_volatile_reg,
-- 
2.43.7