linux-kernel - Re: [PATCH v12 4/4] power: wm831x_power: Support USB charger current limit management

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Message-ID: <20160621110332.GC26099@sirena.org.uk>
Date:	Tue, 21 Jun 2016 12:03:32 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Felipe Balbi <balbi@...nel.org>
Cc:	Baolin Wang <baolin.wang@...aro.org>, gregkh@...uxfoundation.org,
	sre@...nel.org, dbaryshkov@...il.com, dwmw2@...radead.org,
	robh@...nel.org, jun.li@....com, m.szyprowski@...sung.com,
	ruslan.bilovol@...il.com, peter.chen@...escale.com,
	stern@...land.harvard.edu, r.baldyga@...sung.com,
	grygorii.strashko@...com, yoshihiro.shimoda.uh@...esas.com,
	lee.jones@...aro.org, ckeepax@...nsource.wolfsonmicro.com,
	patches@...nsource.wolfsonmicro.com, linux-pm@...r.kernel.org,
	linux-usb@...r.kernel.org,
	device-mainlining@...ts.linuxfoundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v12 4/4] power: wm831x_power: Support USB charger current
 limit management

On Tue, Jun 21, 2016 at 01:30:49PM +0300, Felipe Balbi wrote:
> Baolin Wang <baolin.wang@...aro.org> writes:
> > @@ -607,8 +647,31 @@ static int wm831x_power_probe(struct platform_device *pdev)
> >  		}
> >  	}

> > +	if (wm831x_pdata && wm831x_pdata->usb_gadget) {
> > +		power->usb_charger =
> > +			usb_charger_find_by_name(wm831x_pdata->usb_gadget);

> the fact that you rely on strings and pass them via pdata is an
> indication that you don't have enough description of the HW. Seems like
> we need to come up with a set of DT properties which tie a charger to a
> UDC.

> I'm thinking a phandle would be enough?

The wm831x has no DT support currently.

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