linux-kernel - Re: [PATCH v3 5/5] hisilicon/dts: Add hi655x pmic dts node

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Message-ID: <20151223004602.GN16023@sirena.org.uk>
Date:	Wed, 23 Dec 2015 00:46:02 +0000
From:	Mark Brown <broonie@...nel.org>
To:	chenfeng <puck.chen@...ilicon.com>
Cc:	lee.jones@...aro.org, linux-kernel@...r.kernel.org,
	lgirdwood@...il.com, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, xuwei5@...ilicon.com, puck.chen@...yun.com,
	yudongbin@...ilicon.com, saberlily.xia@...ilicon.com,
	suzhuangluan@...ilicon.com, kong.kongxinwei@...ilicon.com,
	xuyiping@...ilicon.com, z.liuxinliang@...ilicon.com,
	weidong2@...ilicon.com, w.f@...wei.com, qijiwen@...ilicon.com,
	peter.panshilin@...ilicon.com, dan.zhao@...ilicon.com,
	linuxarm@...wei.com
Subject: Re: [PATCH v3 5/5] hisilicon/dts: Add hi655x pmic dts node

On Mon, Dec 21, 2015 at 02:20:16PM +0800, chenfeng wrote:

Please fix your mail client to word wrap within paragraphs at something
substantially less than 80 columns.  Doing this makes your messages much
easier to read and reply to.

> While doing this in driver code, I found that it seems all the vendor
> chip have the voltage table. So I am wondering can we add this into
> the regulator framework.

> We can add in the function of_get_regulation_constraints to get the
> vset table.

> I am not sure this is right or not.

I'm just not convinced it's a good pattern to move this data out to DT,
like I said in my other mail it's making the ABI bigger and I'm not sure
I see much upside over putting the data in a table in DT rather than in
C code.  It's more parsing code and more things we really shouldn't
change in future.

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