linux-kernel - [PATCH 02/10] ASoC: ad1980: Update to use maple tree register cache

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Date:   Thu, 13 Jul 2023 00:13:51 +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 02/10] ASoC: ad1980: 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 ad1980 driver to use the more modern data structure.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 sound/soc/codecs/ad1980.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c
index 5e777d7fd5d9..3c1ae13c1aae 100644
--- a/sound/soc/codecs/ad1980.c
+++ b/sound/soc/codecs/ad1980.c
@@ -92,7 +92,7 @@ static const struct regmap_config ad1980_regmap_config = {
 	.reg_stride = 2,
 	.val_bits = 16,
 	.max_register = 0x7e,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 
 	.volatile_reg = regmap_ac97_default_volatile,
 	.readable_reg = ad1980_readable_reg,

-- 
2.39.2