Re: [PATCH 3/4] power: Add Qualcomm SMBB driver

[Bjorn Andersson <bjorn.andersson@sonymobile.com>]

On Mon 27 Jul 07:06 PDT 2015, Sebastian Reichel wrote:

> Hi,
> 
> On Sat, Jul 25, 2015 at 06:04:14PM -0700, Bjorn Andersson wrote:
> > On Sat 25 Jul 08:42 PDT 2015, Sebastian Reichel wrote:
> > >  * battery-charge-control-limit
> > > 
> > > It's unclear, what this property is used for. Is the limit only
> > > for "normal" charging or also for fast charging?
> > > 
> > 
> > This is described as the current limit during fast charging. However,
> > "fast charging" is the normal state.
> > 
> > I think the most consistent (regards documentation and other properties)
> > would be:
> > 
> >  qcom,fast-charge-current-limit

I spoke with Courtney about this and he pointed out that it really is
the limit of the current flowing into the battery, hence his original
naming.

> 
> So what's the difference to "fast-charge-safe-current"?
> 

The "safe" values are write-once values that should be set once during
boot to protect the hardware. The fast-charge-current-limit can be
modified in runtime by e.g. userspace or a thermal mitigation solution -
but will never be allowed to go above the safe limit.

Regards,
Bjorn