linux-kernel - Re: [PATCH] regmap: speed up the regcache

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Date:	Wed, 9 Dec 2015 15:05:52 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Xiubo Li <lixiubo@...s.chinamobile.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regmap: speed up the regcache_init()

On Wed, Dec 09, 2015 at 11:17:22AM +0800, Xiubo Li wrote:

> Yes, usually when the register cache is not used, the number of the
> defaults should be zero, but for some drivers like drv2267.c/led_lp8860.c
> will add the defaults register values though the cache type is
> REGCACHE_NONE for some reasons.

I can't find either of those in the kernel tree...

> This patch may be not the best, but will be a bit meaningful for some
> drivers like drv2267.c/led_lp8860.c for now.

TBH if we're going to do something here it might be as well to print a
warning if something is providing register defaults but no cache.

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