Hi Mark > Current snd_soc_dai_link is starting to use snd_soc_dai_link_component > (= modern) style for Platform, but it is still assuming single Platform > so far. We will need to have multi Platform support in the not far > future. In my understanding, if Intel / Pierre-Louis supported multi-CPU / CPU modern style, we can switch to modern style for all drivers, and remove legacy style code. Then, I want to suggest 2 things for platform if possible. 1) Many sound driver is assuming "Platform == CPU", so, many driver have this code on current legacy style. dai_link->platforms->of_node = dai_link->cpu_of_node; Because of this settings, soc_bind_dai_link() will pick-up platform component, and try to add it to pcm_runtime. But this component will be ignored because it is already added when CPU bindings, I think. I think "platform" settings is not mandatory in this case. So we can allow "no platform" in modern style. But what do you think ? 2) On legacy style, if sound card dirver doesn't indicate specific "platform", then, "snd-soc-dummy" platform will be selected automatically. It is implemented on snd_soc_init_platform() today. In modern style, we can force to indicate necessary platform, or, not allow implicit snd-soc-dummy platform selection. But what do you think ? If these are OK, we can add/modify such code on current glue code somehow, and all driver follows this new rule when switching to modern style. Good things is that driver code will be more simple/clear, Bad things is that switching to modern will be tough work. Best regards --- Kuninori Morimoto _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
