[Sound-open-firmware] HDMI audio not working on Up^2

[Guennadi Liakhovetski]

Hi,

I tried to test HDMI audio on Up^2 and hdac_hdmi_set_hw_params() is
failing with -ENODEV because no port is assigned. Some very light
analysis and debugging showed, that hdac_hdmi_pcm_open() hasn't
been called, but it might wrong. Are there any non-trivial
requirements to use HDMI audio on Up^2? Can it be, that my monitor
or my cable aren't good enough?

Thanks
Guennadi