linux-kernel - [PATCH 06/18] mfd: bd9571mwv: convert to use maple tree register cache

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Message-ID: <20240206071314.8721-7-liubo03@inspur.com>
Date: Tue, 6 Feb 2024 02:13:02 -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 06/18] mfd: bd9571mwv: 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/bd9571mwv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c
index 819d09e4d100..0a955178d469 100644
--- a/drivers/mfd/bd9571mwv.c
+++ b/drivers/mfd/bd9571mwv.c
@@ -67,7 +67,7 @@ static const struct regmap_access_table bd9571mwv_volatile_table = {
 static const struct regmap_config bd9571mwv_regmap_config = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 	.rd_table	= &bd9571mwv_readable_table,
 	.wr_table	= &bd9571mwv_writable_table,
 	.volatile_table	= &bd9571mwv_volatile_table,
@@ -152,7 +152,7 @@ static const struct regmap_access_table bd9574mwf_volatile_table = {
 static const struct regmap_config bd9574mwf_regmap_config = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 	.rd_table	= &bd9574mwf_readable_table,
 	.wr_table	= &bd9574mwf_writable_table,
 	.volatile_table	= &bd9574mwf_volatile_table,
-- 
2.18.2