On 19.12.2017 18:00, Nicolin Chen wrote:

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.

It also applies _fsl_ssi_set_dai_fmt() to AC97 only since other
formats would be configured via fsl_ssi_set_dai_fmt() directly.

Meanwhile, this patch adds fsl_ssi_dai_ac97_remove() to cleanup
some control bits for AC97.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>

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).

Maciej