The of_xlate callback is supposed to return the channel after already
having 'grabbed' it for private use, so fill that in.
Fixes: b127315d9a78 ("dmaengine: apple-admac: Add Apple ADMAC driver")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20221019132324.8585-1-povik+lin@cutebit.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 
                return NULL;
        }
 
-       return &ad->channels[index].chan;
+       return dma_get_slave_channel(&ad->channels[index].chan);
 }
 
 static int admac_drain_reports(struct admac_data *ad, int channo)