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From: wangkaiyuan <wangkaiyuan@inspur.com>
To: <gregkh@linuxfoundation.org>, <jirislaby@kernel.org>,
	<hvilleneuve@dimonoff.com>, <andy.shevchenko@gmail.com>
CC: <linux-kernel@vger.kernel.org>, <linux-serial@vger.kernel.org>,
	wangkaiyuan <wangkaiyuan@inspur.com>
Subject: [PATCH 1/2] tty: serial: max310x: convert to use maple tree register cache
Date: Mon, 18 Mar 2024 14:40:36 +0800
Message-ID: <20240318064036.1656-1-wangkaiyuan@inspur.com>
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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: wangkaiyuan <wangkaiyuan@inspur.com>
---
 drivers/tty/serial/max310x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 14dd9cfaa9f7..3b72b2137275 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1478,7 +1478,7 @@ static struct regmap_config regcfg = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.write_flag_mask = MAX310X_WRITE_BIT,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = MAX310X_REG_1F,
 	.writeable_reg = max310x_reg_writeable,
 	.volatile_reg = max310x_reg_volatile,
@@ -1582,7 +1582,7 @@ static int max310x_i2c_extended_reg_enable(struct device *dev, bool enable)
 static struct regmap_config regcfg_i2c = {
 	.reg_bits = 8,
 	.val_bits = 8,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.writeable_reg = max310x_reg_writeable,
 	.volatile_reg = max310x_reg_volatile,
 	.precious_reg = max310x_reg_precious,
-- 
2.27.0