Re: [PATCH 3/4] power: supply: axp288_fuel_gauge: Unregister duplicate ACPI battery supply

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On Friday, March 31, 2017 11:57:47 AM Hans de Goede wrote:
> Hi,

Hi,

[cut]

> >
> > Anyway, I'd prefer blacklists in the battery and ac drivers to be honest.
> 
> As I explained in my reply to the discussion around the first patch that
> is somewhat hard to do and requires encoding knowledge in those drivers
> which really does not belong there:
> 
> "The problem is that Intel re-uses HIDs between generations and
> for the Whiskey Cove PMIC we want to not use the ACPI battery
> and ac drivers on Cherry Trail (where they are known to be
> broken) but things are different on Apollo Lake. Yet both
> use the same HID for their companion Whiskey Cove PMIC even
> though they are 2 completely different revisions of the PMIC
> (e.g. one uses i2c the other does not).
> 
> The 2 native drivers have code to detect which revision they
> are dealing with and exit with -ENODEV if it is not the
> revision they were written for, but this means that simple
> HID blacklisting will not work. So IMHO the decision to
> unregister the  ACPI battery / ac interface really belongs
> in the native driver as that has all the nitty gritty detail
> needed to make that decision."

Do the native drivers bind to platform devices?

Thanks,
Rafael

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