Re: [PATCH 0/2] Introduce usb charger framework to deal with the usb gadget power negotation
From: Baolin Wang
Date: Sat Aug 08 2015 - 02:22:44 EST
On 8 August 2015 at 01:52, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Fri, Aug 07, 2015 at 04:19:40PM +0800, Baolin Wang wrote:
>> On 7 August 2015 at 13:34, Peter Chen <peter.chen@xxxxxxxxxxxxx> wrote:
>> > On Thu, Aug 06, 2015 at 03:03:47PM +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.
>> > Baolin, thanks for introducing a framework for doing it, we do support
>> > USB Charger for chipidea driver at internal tree, but it is specific
>> > for imx, and still have some problems to upstream due to need to
>> > change some common code.
>> > One suggestion, would you add your user next time? In that case, we can
>> > know better for this framework.
>> Peter, Thanks for your reviewing and comments. Now I just introduce
>> the framework to review for more feedbacks and do not have a useful
>> user to use it. I just can show you some example code to show how to
>> use it. Thanks.
> Without a real, in-tree user, I can not accept this code. We don't add
> "frameworks" for non-existant things, otherwise it will be instantly
> ripped out the next kernel release.
> Please come up with at least 2 users, ideally 3, otherwise there's no
> real way to know if the framework is sufficient.
OK, I'll try to come up with 2 or 3 users. Thanks.
> greg k-h
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