linux-kernel - [PATCH 01/10] ASoC: ad1836: Update to use maple tree register cache

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Message-Id: <20230713-asoc-ad-maple-v1-1-7d2f35d42b5f@kernel.org>
Date:   Thu, 13 Jul 2023 00:13:50 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Nuno Sá <nuno.sa@...log.com>
Cc:     patches@...nsource.cirrus.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: [PATCH 01/10] ASoC: ad1836: Update 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. In
v6.5 it has also acquired the ability to generate multi-register writes in
sync operations, bringing performance up to parity with the rbtree cache
there.

Update the ad1836 driver to use the more modern data structure.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 sound/soc/codecs/ad1836.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c
index 2c64df96b5ce..949077108bef 100644
--- a/sound/soc/codecs/ad1836.c
+++ b/sound/soc/codecs/ad1836.c
@@ -358,7 +358,7 @@ static const struct regmap_config ad1836_regmap_config = {
 	.max_register = AD1836_ADC_CTRL3,
 	.reg_defaults = ad1836_reg_defaults,
 	.num_reg_defaults = ARRAY_SIZE(ad1836_reg_defaults),
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int ad1836_spi_probe(struct spi_device *spi)

-- 
2.39.2