Re: [alsa-devel] [PATCH 1/2] ALSA: ASoC: add DT bindings for cs4270

Stephen Warren wrote:

Perhaps your board permanently ties the reset line to de-asserted, or the bootloader/... deasserts the codecs reset pin before the kernel boots?

Probably. We have a pretty sophisticate FPGA on our reference boards that handles a lot of stuff like this.