linux-kernel - [PATCH 11/18] mfd: rohm: convert to use maple tree register cache

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Message-ID: <20240206071314.8721-12-liubo03@inspur.com>
Date: Tue, 6 Feb 2024 02:13:07 -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 11/18] mfd: rohm: 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/rohm-bd71828.c | 4 ++--
 drivers/mfd/rohm-bd718x7.c | 2 +-
 drivers/mfd/rohm-bd9576.c  | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/rohm-bd71828.c b/drivers/mfd/rohm-bd71828.c
index 594718f7e8e1..2f3826c7eef4 100644
--- a/drivers/mfd/rohm-bd71828.c
+++ b/drivers/mfd/rohm-bd71828.c
@@ -197,7 +197,7 @@ static const struct regmap_config bd71815_regmap = {
 	.val_bits = 8,
 	.volatile_table = &bd71815_volatile_regs,
 	.max_register = BD71815_MAX_REGISTER - 1,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static const struct regmap_config bd71828_regmap = {
@@ -205,7 +205,7 @@ static const struct regmap_config bd71828_regmap = {
 	.val_bits = 8,
 	.volatile_table = &bd71828_volatile_regs,
 	.max_register = BD71828_MAX_REGISTER,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /*
diff --git a/drivers/mfd/rohm-bd718x7.c b/drivers/mfd/rohm-bd718x7.c
index 4798bdf27afb..7755a4c073bf 100644
--- a/drivers/mfd/rohm-bd718x7.c
+++ b/drivers/mfd/rohm-bd718x7.c
@@ -87,7 +87,7 @@ static const struct regmap_config bd718xx_regmap_config = {
 	.val_bits = 8,
 	.volatile_table = &volatile_regs,
 	.max_register = BD718XX_MAX_REGISTER - 1,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int bd718xx_init_press_duration(struct regmap *regmap,
diff --git a/drivers/mfd/rohm-bd9576.c b/drivers/mfd/rohm-bd9576.c
index bceac7016740..3a9f61961721 100644
--- a/drivers/mfd/rohm-bd9576.c
+++ b/drivers/mfd/rohm-bd9576.c
@@ -62,7 +62,7 @@ static struct regmap_config bd957x_regmap = {
 	.val_bits = 8,
 	.volatile_table = &volatile_regs,
 	.max_register = BD957X_MAX_REGISTER,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static struct regmap_irq bd9576_irqs[] = {
-- 
2.18.2