linux-kernel - Re: [PATCH v1 3/3] nvmem: core: fix regmap accessor usage

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Message-ID: <570FC9E5.2050209@linaro.org>
Date:	Thu, 14 Apr 2016 17:48:37 +0100
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Mark Brown <broonie@...nel.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	linux-kernel@...r.kernel.org, rjendra@....qualcomm.com
Subject: Re: [PATCH v1 3/3] nvmem: core: fix regmap accessor usage



On 14/04/16 16:18, Mark Brown wrote:
> On Thu, Apr 14, 2016 at 01:35:03PM +0100, Srinivas Kandagatla wrote:
>
>> I totally agree that there is an abstraction failure here in both sides. It
>> should be fixed. moving to using bulk apis would solve the nvmem problem for
>> now. But for long term, using regmap should be totally removed from nvmem
>> and directly use the reg read/write callbacks from nvmem providers, This
>> would be much robust solution. This was indeed Maxime's first proposal. I
>> will try to fix it up and see how it looks without regmap.
>
> OK, so just replacing all the _raw_ calls with _bulk_ for now?  If
> you're doing that watch out for the fact that the reads come back native
> endian which might upset things.
Yep, that would confuse users. I think its better I do a long term 
solution of regmap replacement with callbacks before someone else starts 
reporting issues.

--srini
>