Re: dts: fun with chip names Re: [PATCH v3 1/2] dt: bindings: lm3692x: Add bindings for lm3692x LED driver

[Rob Herring]

On Thu, Nov 16, 2017 at 2:11 PM, Pavel Machek <pavel@xxxxxx> wrote:
> Hi!
>
>> >> +Required properties:
>> >> +  - compatible:
>> >> +          "ti,lm3692x"
>> >
>> > Don't use wildcards in compatible strings.
>>
>> Do you mean to remove the x?  How do we denote a family of parts
>> then?
>
> I guess you should specify the exact chip.
>
> Which will present interesting problem for me on Nokia N9/N950; in one
> case, compatible chip is produced by two companies, and it looks like
> some machines have one and some have the other; but we'd like to share
> the dts as user has no chance telling them apart (and it is not
> important, anyway).
>
> In second case, chip is refered as APDS990X and I don't know where to
> get more exact data.

There's always exceptions to rules. Just make the case for it. IIRC,
there was the same case for the BT chip.

Rob