[RFC PATCH 3/9] dt-bindings: clock: Add apple, cluster-clk binding

[Hector Martin]

On 12/10/2021 18.57, Viresh Kumar wrote:
> I didn't realize earlier that we have moved out of lists :)

Whoops, sorry, I was on mobile and must've hit the wrong reply button! 
My apologies.

> On 12-10-21, 18:54, Hector Martin "marcan" wrote:
>> Typically cpufreq-dt is used with clock drivers that directly take
>> the clock frequency and do whatever voodoo is necessary to set it
>> for the CPU. But here, the hardware just wants to know the index,
>> and does everything itself. So we need to encode that somewhere, to
>> avoid hardcoding it in the clock driver.
>>
>> In general, based on how these SoCs are designed, we're trying to
>> avoid having tables of volatile information in the drivers, and
>> instead keep everything in the DT. This means we have a good chance
>> that these drivers will continue to work with future SoC
>> generations, since Apple doesn't change register definitions
>> randomly most of the time.
> 
> Yeah I get that and it is actually better this way. I just wanted to
> point out that we didn't think of it this way earlier :)

Yeah, makes sense. Seems to work fine :)


-- 
Hector Martin (marcan at marcan.st)
Public Key: https://mrcn.st/pub