linux-kernel - [PATCH 05/18] mfd: bcm590xx: convert to use maple tree register cache

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Date: Tue, 6 Feb 2024 02:13:01 -0500
From: Bo Liu <liubo03@...pur.com>
To: <lee@...nel.org>, <wens@...e.org>, <marek.vasut+renesas@...il.com>,
	<support.opensource@...semi.com>, <neil.armstrong@...aro.org>,
	<ckeepax@...nsource.cirrus.com>, <rf@...nsource.cirrus.com>,
	<mazziesaccount@...il.com>, <mcoquelin.stm32@...il.com>,
	<alexandre.torgue@...s.st.com>
CC: <linux-kernel@...r.kernel.org>, <linux-renesas-soc@...r.kernel.org>,
	<linux-amlogic@...ts.infradead.org>, <patches@...nsource.cirrus.com>,
	<linux-stm32@...md-mailman.stormreply.com>,
	<linux-arm-kernel@...ts.infradead.org>, Bo Liu <liubo03@...pur.com>
Subject: [PATCH 05/18] mfd: bcm590xx: 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/mfd/bcm590xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/bcm590xx.c b/drivers/mfd/bcm590xx.c
index 92eede9a5e61..8b56786d85d0 100644
--- a/drivers/mfd/bcm590xx.c
+++ b/drivers/mfd/bcm590xx.c
@@ -27,14 +27,14 @@ static const struct regmap_config bcm590xx_regmap_config_pri = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
 	.max_register	= BCM590XX_MAX_REGISTER_PRI,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static const struct regmap_config bcm590xx_regmap_config_sec = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
 	.max_register	= BCM590XX_MAX_REGISTER_SEC,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static int bcm590xx_i2c_probe(struct i2c_client *i2c_pri)
-- 
2.18.2