Re: [PATCH 18/18] ipu3: Add driver for dummy INT3472 ACPI device

[Dan Scally]

On 30/11/2020 23:21, Laurent Pinchart wrote:
>>> Instead, I propose, that you add this as an option to the tps68470 driver
>>> that figures out whether the ACPI device for the tps68470 device actually
>>> describes something else, in a similar fashion you do with the cio2-bridge
>>> driver. I think it may need a separate Kconfig option albeit this and
>>> cio2-bridge cannot be used separately.
>> It actually occurs to me that that may not work (I know I called that
>> out as an option we considered, but that was a while ago actually). The
>> reason I wasn't worried about the existing tps68470 driver binding to
>> these devices is that it's an i2c driver, and these dummy devices don't
>> have an I2cSerialBusV2, so no I2C device is created by them the kernel.
>>
>> Won't that mean the tps68470 driver won't ever be probed for these devices?
> I think we can create a platform driver in that case. The same module
> can register multiple drivers (platform and I2C).
Ah, I follow. OK, that's an option then.