linux-kernel - Re: [PATCHv5 3/5] mfd: motorola-cpcap: Add audio-codec support

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Message-ID: <20180309112915.bjnqi7tddgucdqjl@earth.universe>
Date:   Fri, 9 Mar 2018 12:29:15 +0100
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com
Subject: Re: [PATCHv5 3/5] mfd: motorola-cpcap: Add audio-codec support

Hi,

On Thu, Mar 08, 2018 at 09:07:36AM -0800, Tony Lindgren wrote:
> * Sebastian Reichel <sebastian.reichel@...labora.co.uk> [180308 09:47]:
> > Hi Lee,
> > 
> > On Wed, Mar 07, 2018 at 04:32:11PM +0000, Lee Jones wrote:
> > > On Fri, 23 Feb 2018, Sebastian Reichel wrote:
> > > > +static const struct mfd_cell cpcap_mfd_devices[] = {
> > 
> > [...]
> > 
> > > > +	}, {
> > > > +		.name          = "cpcap-led",
> > > > +		.id            = 4,
> > > > +		.of_compatible = "motorola,cpcap-led-cp",
> > > > +	}, {
> > > > +		.name          = "cpcap-codec",
> > > > +	}
> > > > +};
> > > 
> > > With none of the entries containing platform_data /me wonders why you
> > > can't still use devm_of_platform_populate()?
> > 
> > Because devm_of_platform_populate works with compatible properties and
> > cpcap-codec does not have one after I removed it for Mark.
> 
> How about keep devm_of_platform_populate() for the ones that
> already have compatible. Then add a table entry for cpcap-codec
> only and call devm_mfd_add_devices()?

This should work. I think it makes sense to wait for Rob Herring's
feedback on the binding. My understanding is, that he has the last
word on binding questions and I would like to avoid changing this
back and forth.

-- Sebastian

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