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

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Message-ID: <5668D760.2040605@cmss.chinamobile.com>
Date:	Thu, 10 Dec 2015 09:37:36 +0800
From:	Xiubo Li <lixiubo@...s.chinamobile.com>
To:	Mark Brown <broonie@...nel.org>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regmap: speed up the regcache_init()



On 09/12/2015 23:05, Mark Brown wrote:
> 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 could be found in the for-next branch of regmap 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.
Yes, Agreed.

I will enhance this later in another patch, just abandon this one please.



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