linux-kernel - [PATCH 1/2] regulator: ltc3589: Use maple tree register cache

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Message-Id: <20230609-regulator-ltc-maple-v1-1-08c15181f8b2@kernel.org>
Date:   Sat, 10 Jun 2023 14:59:53 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Liam Girdwood <lgirdwood@...il.com>
Cc:     linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: [PATCH 1/2] regulator: ltc3589: Use maple tree register cache

The ltc3589 can only support single register read and write operations
so does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/regulator/ltc3589.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c
index 359b534d8c70..06cfc165ab5f 100644
--- a/drivers/regulator/ltc3589.c
+++ b/drivers/regulator/ltc3589.c
@@ -348,7 +348,7 @@ static const struct regmap_config ltc3589_regmap_config = {
 	.num_reg_defaults = ARRAY_SIZE(ltc3589_reg_defaults),
 	.use_single_read = true,
 	.use_single_write = true,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static irqreturn_t ltc3589_isr(int irq, void *dev_id)

-- 
2.30.2