Commit 925b2c3f authored by wangkaiyuan's avatar wangkaiyuan Committed by Greg Kroah-Hartman
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tty: serial: sc16is7xx: 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: default avatarwangkaiyuan <wangkaiyuan@inspur.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240318064216.1765-1-wangkaiyuan@inspur.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c9615d34

drivers/tty/serial/sc16is7xx.c

+1 −1
Original line number Diff line number Diff line
@@ -1686,7 +1686,7 @@ 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,