Re: [PATCH 2/3] nvmem: Add the Raspberry Pi OTP driver

[Stefan Wahren]

Am 08.04.26 um 21:47 schrieb Gregor Herburger:
> Hi Stefan,
>
> thanks for the review.
> > Is there any reason, why we cannot register this driver in
> > rpi_firmware_probe() like hwmon and clk driver?
> >
> > I like to avoid the complete dt-binding from patch 1.
> The private OTP registers are not available on all Raspberries. Afaik
> only on 4 and 5. So I think these registers must be described through
> the device tree. Therefore the bindings are needed.
This binding doesn't represent some kind of hardware, it's just some 
firmware interface. A proper DT binding would describe the MMIO address 
range for OTP access.
If you need some distinction between the Raspberry Pi generations there 
are firmware tags to do this.

Regards