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SubjectRe: [PATCH v7 0/4] Introduce usb charger framework to deal with the usb gadget power negotation
On Mon, Feb 29, 2016 at 11:22:12PM +0900, Mark Brown wrote:
> On Mon, Jan 04, 2016 at 11:04:26AM +0800, Baolin Wang wrote:

I see Felipe is no longer at TI so his e-mail was bouncing - let's
resend this with his kernel.org address:

> > 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. Thus provide a standard framework for doing this in kernel.

> So, the review of this seems to have ground to a bit of a halt - we're
> really not seeing any engagement or comments here, people aren't raising
> any problems or suggesting alternative approaches but this isn't moving
> forwards either. This means that nothing running mainline that isn't
> totally offloaded to hardware can charge at even 500mA, let alone more,
> which seems like a failure to me. What do we need to move this
> forwards?

> If there are concerns around ABI we could either make sure it's as basic
> as possible (so that it'll be easy to maintain compatibility if we think
> of something better) or just hide things from userspace so that we just
> have the in kernel implementation.


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