linux-kernel - Re: [PATCH v2 0/3] Introduce usb charger framework to deal with the usb gadget power negotation

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Date:	Fri, 14 Aug 2015 16:55:29 +0800
From:	Li Jun <b47624@...escale.com>
To:	Baolin Wang <baolin.wang@...aro.org>
CC:	<balbi@...com>, <broonie@...nel.org>, <linus.walleij@...aro.org>,
	<linux-kernel@...r.kernel.org>, <gregkh@...uxfoundation.org>,
	<peter.chen@...escale.com>, <sojka@...ica.cz>,
	<stern@...land.harvard.edu>, <r.baldyga@...sung.com>,
	<yoshihiro.shimoda.uh@...esas.com>, <linux-usb@...r.kernel.org>,
	<device-mainlining@...ts.linuxfoundation.org>, <sre@...nel.org>,
	<dbaryshkov@...il.com>, <dwmw2@...radead.org>,
	<sameo@...ux.intel.com>, <lee.jones@...aro.org>,
	<patches@...nsource.wolfsonmicro.com>, <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v2 0/3] Introduce usb charger framework to deal with the
 usb gadget power negotation

Hi Baolin,

On Fri, Aug 14, 2015 at 05:47:43PM +0800, Baolin Wang wrote:
> Currently the Linux kernel does not provide any standard integration of this
> feature that integrates the USB subsystem with the system power regulation
> provided by PMICs meaning that either vendors must add this in their kernels
> or USB gadget devices based on Linux (such as mobile phones) may not behave
> as they should.
> 
> Providing a standard framework for doing this in the kernel.
> 

Why not add power supply class support into this?  

Li Jun

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