Re: [PATCH v4 1/5] gadget: Introduce the notifier functions

[Felipe Balbi]

On Thu, Oct 01, 2015 at 12:58:49PM -0500, Felipe Balbi wrote:
> Hi,
> 
> On Thu, Oct 01, 2015 at 06:43:08PM +0100, Mark Brown wrote:
> > On Thu, Oct 01, 2015 at 12:29:32PM -0500, Felipe Balbi wrote:
> > 
> > > Frankly, I wanted all of this to be decided in userland with the
> > > kernel just providing notification and basic safety checks (we don't
> > > want to allow a bogus userspace daemon frying anybody's devices).
> > 
> > What's the advantage of pushing this to userspace?  By the time we
> > provide enough discoverability to enable userspace to configure itself
> > it seems like we'd have enough information to do the job anyway.
> 
> you're going to be dealing with a setup where each vendor does one thing
> differently. Some will have it all in the SoC part of a single IP (dwc3 can be
> configured that way), some will push it out to companion IC, some might even use

oh, and as for dwc3 itself: it *can* be configured that way, but all those
charging blocks are optional :-) So you will even have setups where the very
same IP works differently because SoC vendor A configured it differently from
SoC vendor B.

-- 
balbi

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