linux-kernel - Re: [PATCH] media: i2c: mt9v032: convert to use maple tree register cache

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Message-ID: <20240117094507.GC17920@pendragon.ideasonboard.com>
Date: Wed, 17 Jan 2024 11:45:07 +0200
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Bo Liu <liubo03@...pur.com>
Cc: sakari.ailus@...ux.intel.com, mchehab@...nel.org,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: i2c: mt9v032: convert to use maple tree register
 cache

On Tue, Jan 16, 2024 at 10:11:05PM -0500, Bo Liu 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: Bo Liu <liubo03@...pur.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
>  drivers/media/i2c/mt9v032.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
> index 3ca76eeae7ff..6dfbd1c56c22 100644
> --- a/drivers/media/i2c/mt9v032.c
> +++ b/drivers/media/i2c/mt9v032.c
> @@ -988,7 +988,7 @@ static const struct regmap_config mt9v032_regmap_config = {
>  	.reg_bits = 8,
>  	.val_bits = 16,
>  	.max_register = 0xff,
> -	.cache_type = REGCACHE_RBTREE,
> +	.cache_type = REGCACHE_MAPLE,
>  };
>  
>  /* -----------------------------------------------------------------------------

-- 
Regards,

Laurent Pinchart