Re: dpcm_be_connect: FE is atomic but BE is nonatomic, invalid configuration

On 3/13/23 10:10, Daniel Baluta wrote:

Hi Morimoto-san,

I would like to know your take on the following issue.

On I.MX with SOF we use simple-card and hit the following error:

sai1-wm8960-hifi: dpcm_be_connect: FE is atomic but BE is nonatomic, invalid configuration

and I think it makes sense to have the BE nonatomic as set by SOF core.

The SOF core does not change the BE, does it?

The only cases where we set the BE as nonatomic in Intel board is for the SoundWire BEs. All regular I2S/DMIC are atomic - there is no interaction with firmware.