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

[Guennadi Liakhovetski]

Hi Liam,

I see some issues both in SOF and the kernel, e.g.
https://github.com/thesofproject/sof/issues/1114
and
https://github.com/thesofproject/linux/issues/737 
but they seem to be differeent and in fact e.g. the latter is "positive"
for me - since it's reporting a problem with PM, it implies, that without
entering low-power states, HDMI audio was working.

Thanks
Guennadi

On Fri, Mar 22, 2019 at 11:28:12AM +0000, Liam Girdwood wrote:
> On Fri, 2019-03-22 at 11:54 +0100, Guennadi Liakhovetski wrote:
> > 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?
> 
> No, your cable and monitor should be fine. I think this regression has been
> added to the GH issue tracker. Can you check.
> 
> Thanks
> 
> Liam
> 
>