Hi Mark & Russell: thanks for your replay, what your say is right, those dt is merely describing the Linux kernel internals. Instead of transmit cpu-of-node & codec-name & codec-dai-name through dt, i can give those an const name to rockchip-hdmi-audio.c .
In that way, dt will only need compatible for creating sound device. is it ok ? sound { compatible = "rockchip,rk3288-hdmi-audio"; status = "okay"; } could you give me some advises. Best Regards. å¨ 2014å¹´12æ15æ¥ 20:02, Mark Brown åé: > On Mon, Dec 15, 2014 at 10:40:29AM +0000, Russell King - ARM Linux wrote: > >> Including details like this (because ASoC needs a separate DT node) is >> the wrong approach. > And indeed there should be no Linux-internal reason for that - we should > be able to use whatever DT node makes sense, if there's some reason > that's not possible we should fix that (we do have several drivers doing > this sort of thing already though).