--- zzzz-none-000/linux-4.1.52/include/linux/spi/spi.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/spi/spi.h	2022-03-02 11:37:13.000000000 +0000
@@ -625,6 +625,37 @@
 	u16		delay_usecs;
 	u32		speed_hz;
 
+#if defined(CONFIG_BCM_KF_SPI)
+	/* added for controllers that support an ignore count for read
+	 operations. This is useful if the read requires command bytes
+	 and you want to ignore the read data on the bus during the
+	 transmission of those bytes. Note that only prepend_cnt bytes
+	 of data will be written from tx_buf.
+	*/
+	u8  prepend_cnt;
+
+	/* added for multibit support
+	 @multi_bit_en - enable multibit operation for this transfer
+	 @multi_bit_start_offset - start offset for multibit data
+	*/
+	u8  multi_bit_en;
+	u8  multi_bit_start_offset;
+
+	/* added for controllers that do not support large transfers
+	 the controller will break up the transfer into smaller
+	 transfers to avoid additional data copies
+	 Note that hdr_len should not be included in len
+	 @hdr_len - length of header
+	 @unit_size - data for each transfer will be divided into multiples of
+	          unit_size
+	 @adr_len - length of address field (max 4 bytes)
+	 @adr_offset - offset of first addr byte in header
+	*/
+	u8  hdr_len;
+	u8  unit_size;
+	u8  addr_len;
+	u8  addr_offset;
+#endif
 	struct list_head transfer_list;
 };