From: wangkaiyuan <wangkaiyuan@inspur.com>
To: <gregkh@linuxfoundation.org>, <jirislaby@kernel.org>,
<hvilleneuve@dimonoff.com>, <andriy.shevchenko@linux.intel.com>
Cc: <linux-kernel@vger.kernel.org>, <linux-serial@vger.kernel.org>,
wangkaiyuan <wangkaiyuan@inspur.com>
Subject: [PATCH 2/2] tty: serial: sc16is7xx: convert to use maple tree register cache
Date: Mon, 18 Mar 2024 14:42:16 +0800 [thread overview]
Message-ID: <20240318064216.1765-1-wangkaiyuan@inspur.com> (raw)
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/sc16is7xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 929206a9a6e1..410b772cdbb3 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1696,7 +1696,7 @@ static struct regmap_config regcfg = {
.reg_bits = 5,
.pad_bits = 3,
.val_bits = 8,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.volatile_reg = sc16is7xx_regmap_volatile,
.precious_reg = sc16is7xx_regmap_precious,
.writeable_noinc_reg = sc16is7xx_regmap_noinc,
--
2.27.0
next reply other threads:[~2024-03-18 6:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-18 6:42 wangkaiyuan [this message]
2024-03-18 10:28 ` [PATCH 2/2] tty: serial: sc16is7xx: convert to use maple tree register cache Andy Shevchenko
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