linux-kernel - Re: [PATCH v9 0/4] Introduce usb charger framework to deal with the usb gadget power negotation

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Message-ID: <20160405170153.GE1924@sirena.org.uk>
Date:	Tue, 5 Apr 2016 10:01:53 -0700
From:	Mark Brown <broonie@...nel.org>
To:	Peter Chen <hzpeterchen@...il.com>
Cc:	Baolin Wang <baolin.wang@...aro.org>,
	Felipe Balbi <balbi@...nel.org>,
	Greg KH <gregkh@...uxfoundation.org>,
	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Peter Chen <peter.chen@...escale.com>,
	Alan Stern <stern@...land.harvard.edu>, r.baldyga@...sung.com,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	Lee Jones <lee.jones@...aro.org>,
	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>,
	patches@...nsource.wolfsonmicro.com,
	Linux PM list <linux-pm@...r.kernel.org>,
	USB <linux-usb@...r.kernel.org>,
	device-mainlining@...ts.linuxfoundation.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v9 0/4] Introduce usb charger framework to deal with the
 usb gadget power negotation

On Tue, Apr 05, 2016 at 05:43:20PM +0800, Peter Chen wrote:
> On Tue, Apr 05, 2016 at 05:34:02PM +0800, Baolin Wang wrote:

> > Mark, could you please address Peter's comments about if the the
> > wm831x can charge more than 1500mA for DCP? (I have no environment to
> > test wm831x) Thanks.

> I don't want you or Mark to test at hardware, I just would like to see
> some code that how PMIC, wm831x, and USB gadget driver work together.

If you want to see this running it's going to be easier for you to just
write an equivalent driver that just does a print instead of writing to
a register (which is all that the wm831x driver boils down to) and test
on hardware you have in front of you.

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