[Sound-open-firmware] Handling DAI clocks in SOF

[Daniel Baluta]

Hi all,

I am asking your opinion on how to better handle clocks / pinctrl configuration
in SOF for IMX.

As far as I know Intel platforms deal with this stuff on Firmware
side. Unfortunately
for IMX this cannot be done easily.

The interface on touching resources (clocks, pinctrl) in i.MX8/i.MX8X
uses a separate
dedicated core (M4) named System Controller.

Linux kernel has a mechanism implemented to communicate with this SC
and to request
for clock operations (enable, disable, set rate etc).

So, would you see it fit to create (on Linux kernel side) dummy DAI
drivers which just take
care of resource configuration?

thanks,
Daniel.