linux-kernel - [PATCH v1 01/13] regulator: da9121: convert to use maple tree register cache

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Date: Wed, 20 Mar 2024 04:57:28 -0400
From: Bo Liu <liubo03@...pur.com>
To: <support.opensource@...semi.com>, <lgirdwood@...il.com>,
	<broonie@...nel.org>, <matthias.bgg@...il.com>,
	<angelogioacchino.delregno@...labora.com>, <jagan@...rulasolutions.com>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>, Bo Liu <liubo03@...pur.com>
Subject: [PATCH v1 01/13] regulator: da9121: 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/regulator/da9121-regulator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/da9121-regulator.c b/drivers/regulator/da9121-regulator.c
index 5ee76b533576..96257551bb12 100644
--- a/drivers/regulator/da9121-regulator.c
+++ b/drivers/regulator/da9121-regulator.c
@@ -872,7 +872,7 @@ static struct regmap_config da9121_1ch_regmap_config = {
 	.rd_table = &da9121_1ch_readable_table,
 	.wr_table = &da9121_1ch_writeable_table,
 	.volatile_table = &da9121_volatile_table,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /* DA9121 regmap config for 2 channel variants */
@@ -883,7 +883,7 @@ static struct regmap_config da9121_2ch_regmap_config = {
 	.rd_table = &da9121_2ch_readable_table,
 	.wr_table = &da9121_2ch_writeable_table,
 	.volatile_table = &da9121_volatile_table,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int da9121_check_device_type(struct i2c_client *i2c, struct da9121 *chip)
-- 
2.18.2