On 26/10/2022 10:48, Aidan MacDonald wrote: > > Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> writes: > >> And the remaining piece I don't get is that these are not bindings for >> codec, but for sound audio card. You want to set "system-clock-id" >> property for audio card, while putting clock from codec, which will be >> used to pass back to the codec... so it is a property of the codec, not >> of the audio card. IOW, NAU8821_CLK_* does not configure here the clock >> of the system, but only, only clock of the codec. > > The system clock is controlled at the DAI level, it's specific to one > DAI on one component. The simple-card device node has sub-nodes for the > DAI links, and each DAI link node has sub-nodes for the DAIs within the > link. "system-clock-id" is a property on the DAI nodes, so it's not a > card-level property, just one part of the overall card definition. > > Since the clock ID is something defined by the codec it would naturally > be a value defined by the codec, but the *configuration* of the codec is > part of the sound card because it depends on how everything is connected > together. If you used the same codec in a different machine it would > have a different configuration. OK, that sounds reasonable. Thank you for explaining this. You still need to convince Mark :) Best regards, Krzysztof
