linux-kernel - [PATCH 1/5] hwmon: (lm75) Use maple tree register cache

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Message-Id: <20230609-hwmon-maple-v1-1-8edacce86b28@kernel.org>
Date:   Sat, 10 Jun 2023 14:59:07 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH 1/5] hwmon: (lm75) Use maple tree register cache

The lm75 is only capable of performing single register read and write
operations which means it gains no advantage from using a rbtree register
cache, convert it to using the more modern maple tree register cache
instead. This should be more efficient.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/hwmon/lm75.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index dbb99ea4a0ec..ab73b9af5c71 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -548,7 +548,7 @@ static const struct regmap_config lm75_regmap_config = {
 	.writeable_reg = lm75_is_writeable_reg,
 	.volatile_reg = lm75_is_volatile_reg,
 	.val_format_endian = REGMAP_ENDIAN_BIG,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.use_single_read = true,
 	.use_single_write = true,
 };

-- 
2.30.2