linux-kernel - Re: [PATCH v4 4/5] regulator: tps65912: Add regulator driver for the TPS65912 PMIC

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Message-ID: <20151106104322.GA18409@sirena.org.uk>
Date:	Fri, 6 Nov 2015 10:43:22 +0000
From:	Mark Brown <broonie@...nel.org>
To:	"Andrew F. Davis" <afd@...com>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Lee Jones <lee.jones@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Grygorii Strashko <grygorii.strashko@...com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 4/5] regulator: tps65912: Add regulator driver for the
 TPS65912 PMIC

On Thu, Nov 05, 2015 at 12:04:00PM -0600, Andrew F. Davis wrote:
> On 11/05/2015 04:14 AM, Mark Brown wrote:

> >That sounds like a bug to me, it'll have broken a bunch of existing
> >devices.

> Most OF drivers have the OF MODALIAS.

That's nice but not relevant to non-OF devices.

> 'platform_uevent' can only emit one MODALIAS string per device (only
> the last emitted one seems to count), so for any device with
> 'dev->of_node' set it will be the OF MODALIAS string. So I need
> that table (to generate the OF MODALIAS) or this sub-device module
> will not be loaded.

No, you need to fix the bug that is causing dev->of_node to be populated
for the MFD function device.  Probably the issue is that you have put
this pointless compatible string in your DT.

Please stop this.  I don't understand why you are pushing so hard to put
the Linux device model representation of the device into DT but it's
getting very repetitive.

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