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@kernel.org>
---
 drivers/gpu/drm/bridge/lontium-lt9211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/lontium-lt9211.c b/drivers/gpu/drm/bridge/lontium-lt9211.c
index 4d404f5ef87e..c8881796fba4 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9211.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9211.c
@@ -89,7 +89,7 @@ static const struct regmap_config lt9211_regmap_config = {
 	.volatile_table	= &lt9211_rw_table,
 	.ranges = &lt9211_range,
 	.num_ranges = 1,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = 0xda00,
 };
 

---
base-commit: 6465e260f48790807eef06b583b38ca9789b6072
change-id: 20230929-drm-lt9211-maple-f2b0807acd53

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

Hi,

On Sun, 01 Oct 2023 11:24:49 +0100, Mark Brown wrote:
> 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.
> 
> 

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[1/1] drm/bridge: lt9211: Convert to use maple tree register cache
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=eae0cfcce3cd10a9189bf46934de9bde7ad7b2d0

-- 
Neil

On 01/10/2023 12:24, Mark Brown wrote:
> 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@kernel.org>
> ---
>   drivers/gpu/drm/bridge/lontium-lt9211.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/bridge/lontium-lt9211.c b/drivers/gpu/drm/bridge/lontium-lt9211.c
> index 4d404f5ef87e..c8881796fba4 100644
> --- a/drivers/gpu/drm/bridge/lontium-lt9211.c
> +++ b/drivers/gpu/drm/bridge/lontium-lt9211.c
> @@ -89,7 +89,7 @@ static const struct regmap_config lt9211_regmap_config = {
>   	.volatile_table	= &lt9211_rw_table,
>   	.ranges = &lt9211_range,
>   	.num_ranges = 1,
> -	.cache_type = REGCACHE_RBTREE,
> +	.cache_type = REGCACHE_MAPLE,
>   	.max_register = 0xda00,
>   };
>   
> 
> ---
> base-commit: 6465e260f48790807eef06b583b38ca9789b6072
> change-id: 20230929-drm-lt9211-maple-f2b0807acd53
> 
> Best regards,

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>