linux-kernel - [PATCH] usb: typec: stusb160x: convert to use maple tree register cache

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Message-ID: <20240309071757.3152-1-liubo03@inspur.com>
Date: Sat, 9 Mar 2024 02:17:57 -0500
From: Bo Liu <liubo03@...pur.com>
To: <heikki.krogerus@...ux.intel.com>, <gregkh@...uxfoundation.org>
CC: <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Bo Liu
	<liubo03@...pur.com>
Subject: [PATCH] usb: typec: stusb160x: 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/usb/typec/stusb160x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/stusb160x.c b/drivers/usb/typec/stusb160x.c
index 3ab118df1bd4..f3140fc04c12 100644
--- a/drivers/usb/typec/stusb160x.c
+++ b/drivers/usb/typec/stusb160x.c
@@ -234,7 +234,7 @@ static const struct regmap_config stusb1600_regmap_config = {
 	.readable_reg	= stusb160x_reg_readable,
 	.volatile_reg	= stusb160x_reg_volatile,
 	.precious_reg	= stusb160x_reg_precious,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static bool stusb160x_get_vconn(struct stusb160x *chip)
-- 
2.18.2