Re: [PATCH v1 11/15] ASoC: fsl_ssi: Setup AC97 in dai_probe()

On Mon, Jan 01, 2018 at 04:17:20PM +0100, Maciej S. Szmigiero wrote:

quoted

AC97 configures some registers earlier to start a communication
with CODECs, so this patch moves those register settings to the
dai_probe() as well, along with other register configurations.

This patch breaks AC'97 CODEC probing.

Namely, the fsl_ssi DAI probe callback is only called after the AC'97
CODEC probe callback, so when you move SSI AC'97 startup to its DAI
probe callback it won't be done yet when the CODEC is probed (and this
requires a working AC'97 interface to successfully complete).

Hmm...What's the dependency here? Why is it required like this?
I am okay to put everything to a separate fsl_ssi_hw_init() and
move it back to the platform probe() though.