On Thu, Jan 14, 2016 at 07:31:19PM -0600, Timur Tabi wrote:
Nicolin Chen wrote:
I think DT maintainers may not give a consent towards these two properties as they are not to describe the hardware but to hack software configurations. (And it seems you haven't CCed them.)
I admit it's a grey area, but the hardware doesn't work if you use the wrong value, and it is a fixed value per device. A p1022ds would use a different value than in in i.MX6, and once you pick a value, it's the same no matter which sample rate, buffer size, etc you choose.
We've allowed similar properties for other things like SPI controllers.
It really depends on the frequency you expect to change it. The more often it changes, the higher up the s/w stack it should be controlled (firmware/DT, kernel, or userspace). A function of the SOC or codec rate, then yes DT is fine. Every user needs to tune it on the same platform, then no, don't put it in DT. My recollection from i.MX is this would be the former case.
Rob