[PATCH] ASoC: codecs: allow compile testing without MFD drivers

[Krzysztof Kozlowski]

On 30/08/2022 13:35, Mark Brown wrote:
> On Sat, Aug 27, 2022 at 12:02:39PM +0300, Krzysztof Kozlowski wrote:
> 
>> True, it's not the same build coverage need as subsystem/interface
>> dependencies, but still:
>> 1. Drivers can be built independently, so why not?
>> 2. There is no drawback in allowing to building them independently
>> (compile test).
>> 3. The parent MFD device could also depend on something (RK817 and
>> MFD_LOCHNAGAR depends on I2C and OF; CPCAP on SPI), so it's not always
>> the case of just enabling parent. IOW, you can compile test codecs
>> without I2C and SPI which is valuable itself.
> 
>> I find the last reason actually quite valid and applicable here. If you
>> wish I can add it to the commit msg.
> 
> You've already found one case where there's a dependency being
> pulled in by the parent, I suspect there's more.  There's a
> tradeoff between getting coverage and having to deal with the
> noise from randconfigs.

Yeah, that was my mistake because did not spot it has "select
REGMAP_I2C". For such cases the benefit is indeed gone.

Best regards,
Krzysztof