Messages in this thread | | | Date | Wed, 15 Jan 2014 16:30:00 -0800 (PST) | From | Kuninori Morimoto <> | Subject | Re: [alsa-devel] Problems with simple-card |
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Hi
> > The main problem is about sysclk: when there is no clock in the DT, > > you get the clock of the CPU or CODEC DAI. In my system, two clocks > > are declared in the controller CPU DAI, but there is no .set_sysclk > > pointer. So, snd_soc_dai_set_sysclk() returns -EINVAL and the card is > > not created. > > set_sysclk() should be returning -ENOTSUPP in this case as with > set_fmt() and the generic code then ignoring that error. > > > As I don't know why you need these fmt and sysclk, may you have a > > look at these problems? > > The overwhelming majority of combinations of devices need a format > specifying (usually one will be imposed by the system design even if > both devices could be master).
If my understanding is correct, this patch is the reason ?
71467e46414d3bab220de77d3d085be0c0aa03e1 (ASoC: simple-card: Add device's module clock selection)
It seems break non .set_sysclk drivers.
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