[PATCH 2/2] tty: serial: sc16is7xx: convert to use maple tree register cache

[PATCH 2/2] tty: serial: sc16is7xx: convert to use maple tree register cache

[wangkaiyuan]

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

Re: [PATCH 2/2] tty: serial: sc16is7xx: convert to use maple tree register cache

[Andy Shevchenko]

On Mon, Mar 18, 2024 at 02:42:16PM +0800, wangkaiyuan wrote:
> 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.

Okay,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

-- 
With Best Regards,
Andy Shevchenko