--- zzzz-none-000/linux-4.4.271/include/sound/soc-dai.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/sound/soc-dai.h	2023-04-19 10:22:30.000000000 +0000
@@ -166,6 +166,9 @@
 		unsigned int tx_num, unsigned int *tx_slot,
 		unsigned int rx_num, unsigned int *rx_slot);
 	int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
+	int (*get_channel_map)(struct snd_soc_dai *dai,
+		unsigned int *tx_num, unsigned int *tx_slot,
+		unsigned int *rx_num, unsigned int *rx_slot);
 
 	/*
 	 * DAI digital mute - optional.