linux-kernel - [PATCH] regulator: pf9453: convert to use maple tree register cache

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Message-ID: <20250424010855.2662-1-liubo03@inspur.com>
Date: Wed, 23 Apr 2025 21:08:55 -0400
From: Bo Liu <liubo03@...pur.com>
To: <lgirdwood@...il.com>, <broonie@...nel.org>
CC: <linux-kernel@...r.kernel.org>, Bo Liu <liubo03@...pur.com>
Subject: [PATCH] regulator: pf9453: 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/pf9453-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/pf9453-regulator.c b/drivers/regulator/pf9453-regulator.c
index b58c9c0a5022..be627f49b617 100644
--- a/drivers/regulator/pf9453-regulator.c
+++ b/drivers/regulator/pf9453-regulator.c
@@ -214,7 +214,7 @@ static const struct regmap_config pf9453_regmap_config = {
 	.val_bits = 8,
 	.volatile_table = &pf9453_volatile_regs,
 	.max_register = PF9453_MAX_REG - 1,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /*
-- 
2.31.1