On Mon, Jan 04, 2016 at 11:04:26AM +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. 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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