linux-kernel - Re: [PATCH RFC 2/3] spmi: Add MSM PMIC Arbiter SPMI controller

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Message-ID: <20130816185256.GC31510@kroah.com>
Date:	Fri, 16 Aug 2013 11:52:56 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Josh Cartwright <joshc@...eaurora.org>
Cc:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org,
	Sagar Dharia <sdharia@...eaurora.org>,
	Gilad Avidov <gavidov@...eaurora.org>,
	Michael Bohan <mbohan@...eaurora.org>
Subject: Re: [PATCH RFC 2/3] spmi: Add MSM PMIC Arbiter SPMI controller

On Fri, Aug 09, 2013 at 01:37:07PM -0700, Josh Cartwright wrote:
> +struct spmi_pmic_arb_dev {
> +	struct spmi_controller	controller;
> +	struct device		*dev;
> +	struct device		*slave;

This is problematic.

Why do you have the driver "own" the controller?  What is dev for,
there's already a struct device within the controller.  Same for slave,
what is it?

You have 3 struct devices here, which one controls the lifecycle of the
object (hint, I know the answer, but I think it's wrong...)

thanks,

greg k-h
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