linux-kernel - [PATCH] gpio: fx6408: Convert to use maple tree register cache

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Date:   Fri, 29 Sep 2023 16:11:24 +0200
From:   Mark Brown <broonie@...nel.org>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Andy Shevchenko <andy@...nel.org>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH] gpio: fx6408: 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: Mark Brown <broonie@...nel.org>
---
 drivers/gpio/gpio-fxl6408.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-fxl6408.c b/drivers/gpio/gpio-fxl6408.c
index c14b5cc5e519..991549888904 100644
--- a/drivers/gpio/gpio-fxl6408.c
+++ b/drivers/gpio/gpio-fxl6408.c
@@ -84,7 +84,7 @@ static const struct regmap_config regmap = {
 	.rd_table = &rd_table,
 	.volatile_table = &volatile_table,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.num_reg_defaults_raw = FXL6408_REG_INT_STS + 1,
 };
 

---
base-commit: 6465e260f48790807eef06b583b38ca9789b6072
change-id: 20230929-gpio-fx16408-476b144746bc

Best regards,
-- 
Mark Brown <broonie@...nel.org>