Message-ID: <5668D760.2040605@cmss.chinamobile.com>
Date: Thu, 10 Dec 2015 09:37:36 +0800
From: Xiubo Li <lixiubo@cmss.chinamobile.com>
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To: Mark Brown <broonie@kernel.org>
CC: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] regmap: speed up the regcache_init()
References: <1449109150-26793-1-git-send-email-lixiubo@cmss.chinamobile.com> <20151208170517.GU5727@sirena.org.uk> <56679D42.3030708@cmss.chinamobile.com> <20151209150552.GC5727@sirena.org.uk>
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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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