linux-kernel - Re: [PATCH 1/4] MFD: TWL6025: add phoenix lite support to twl6030

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Date:	Sun, 08 May 2011 21:32:33 +0100
From:	Liam Girdwood <lrg@...nel.org>
To:	balbi@...com
Cc:	Graeme Gregory <gg@...mlogic.co.uk>, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org, sameo@...ux.intel.com,
	broonie@...nsource.wolfsonmicro.com
Subject: Re: [PATCH 1/4] MFD: TWL6025: add phoenix lite support to twl6030

On Wed, 2011-04-27 at 13:40 +0300, Felipe Balbi wrote: 
> On Wed, Apr 27, 2011 at 10:39:48AM +0100, Graeme Gregory wrote:


> > +	/* TWL6025 LDO regulators */
> > +	struct regulator_init_data		*ldo1;
> > +	struct regulator_init_data		*ldo2;
> > +	struct regulator_init_data		*ldo3;
> > +	struct regulator_init_data		*ldo4;
> > +	struct regulator_init_data		*ldo5;
> > +	struct regulator_init_data		*ldo6;
> > +	struct regulator_init_data		*ldo7;
> > +	struct regulator_init_data		*ldoln;
> > +	struct regulator_init_data		*ldousb;
> > +	/* TWL6025 DCDC regulators */
> > +	struct regulator_init_data		*smps3;
> > +	struct regulator_init_data		*smps4;
> > +	struct regulator_init_data		*vio6025;
> 
> this is just becoming really really ugly. You need a more clever way of
> handling this. Maybe passing an array of regulators and the array size
> instead of continuously adding fields to this structure.
> 

Ok, I agree that optimising the platform data here is desirable, but I
think we will have to stick with this atm as the twl driver has some
rather annoying limitations that make optimising things like this a pita
atm.

I guess we should look at fixing the twl driver within TI in order to
make it more adaptable (i.e. support future twl ICs) and also a non
singleton device.

Liam

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