linux-kernel - [PATCH 17/18] mfd: stpmic1: convert to use maple tree register cache

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Message-ID: <20240206071314.8721-18-liubo03@inspur.com>
Date: Tue, 6 Feb 2024 02:13:13 -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 17/18] mfd: stpmic1: 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/stpmic1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/stpmic1.c b/drivers/mfd/stpmic1.c
index c5128fe96cc7..d8a603d95aa6 100644
--- a/drivers/mfd/stpmic1.c
+++ b/drivers/mfd/stpmic1.c
@@ -63,7 +63,7 @@ static const struct regmap_access_table stpmic1_volatile_table = {
 static const struct regmap_config stpmic1_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = PMIC_MAX_REGISTER_ADDRESS,
 	.rd_table = &stpmic1_readable_table,
 	.wr_table = &stpmic1_writeable_table,
-- 
2.18.2