firmware: ti_sci: rm: Add support for extended_ch_type for tx channel

Sysfw added 'extended_ch_type' to the tx_ch_cfg_req message which should be
used when BCDMA block copy channels are configured:
extended_ch_type = 0 : the channel is split tx channel (tchan)
extended_ch_type = 1 : the channel is block copy channel (bchan)

Signed-off-by: Peter Ujfalusi <[e-mail]>
Signed-off-by: Santosh Shilimkar <[e-mail]>

drivers/firmware/ti_sci.c

···
 	req->tx_sched_priority = params->tx_sched_priority;
 	req->tx_burst_size = params->tx_burst_size;
 	req->tx_tdtype = params->tx_tdtype;
+	req->extended_ch_type = params->extended_ch_type;
 
 	ret = ti_sci_do_xfer(info, xfer);
 	if (ret) {

drivers/firmware/ti_sci.h

···
  *   13 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::fdepth
  *   14 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::tx_burst_size
  *   15 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::tx_tdtype
+ *   16 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::extended_ch_type
  *
  * @nav_id: SoC device ID of Navigator Subsystem where tx channel is located
  *
···
  * programmed into the tdtype field of the TCHAN_TCFG register:
  * 0 - Return immediately
  * 1 - Wait for completion message from remote peer
+ *
+ * @extended_ch_type: Valid for BCDMA.
+ * 0 - the channel is split tx channel (tchan)
+ * 1 - the channel is block copy channel (bchan)
  */
 struct ti_sci_msg_rm_udmap_tx_ch_cfg_req {
 	struct ti_sci_msg_hdr hdr;
···
 	u8 tx_sched_priority;
 	u8 tx_burst_size;
 	u8 tx_tdtype;
+	u8 extended_ch_type;
 } __packed;
 
 /**

include/linux/soc/ti/ti_sci_protocol.h

···
 #define TI_SCI_RM_UDMAP_CHAN_BURST_SIZE_128_BYTES	2
 #define TI_SCI_RM_UDMAP_CHAN_BURST_SIZE_256_BYTES	3
 
+#define TI_SCI_RM_BCDMA_EXTENDED_CH_TYPE_TCHAN		0
+#define TI_SCI_RM_BCDMA_EXTENDED_CH_TYPE_BCHAN		1
+
 /* UDMAP TX/RX channel valid_params common declarations */
 #define TI_SCI_MSG_VALUE_RM_UDMAP_CH_PAUSE_ON_ERR_VALID		BIT(0)
 #define TI_SCI_MSG_VALUE_RM_UDMAP_CH_ATYPE_VALID                BIT(1)
···
 #define TI_SCI_MSG_VALUE_RM_UDMAP_CH_TX_CREDIT_COUNT_VALID      BIT(12)
 #define TI_SCI_MSG_VALUE_RM_UDMAP_CH_TX_FDEPTH_VALID            BIT(13)
 #define TI_SCI_MSG_VALUE_RM_UDMAP_CH_TX_TDTYPE_VALID            BIT(15)
+#define TI_SCI_MSG_VALUE_RM_UDMAP_CH_EXTENDED_CH_TYPE_VALID	BIT(16)
 	u16 nav_id;
 	u16 index;
 	u8 tx_pause_on_err;
···
 	u8 tx_sched_priority;
 	u8 tx_burst_size;
 	u8 tx_tdtype;
+	u8 extended_ch_type;
 };
 
 /**