firmware: ti_sci: rm: Add support for tx_tdtype parameter for tx channel

The system controller's resource manager have support for configuring the
TDTYPE of TCHAN_CFG register on j721e.
With this parameter the teardown completion can be controlled:
TDTYPE == 0: Return without waiting for peer to complete the teardown
TDTYPE == 1: Wait for peer to complete the teardown

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>

diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 896f53e..65a8c2e 100644 (file)
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -2362,6 +2362,7 @@ static int ti_sci_cmd_rm_udmap_tx_ch_cfg(const struct ti_sci_handle *handle,
        req->fdepth = params->fdepth;
        req->tx_sched_priority = params->tx_sched_priority;
        req->tx_burst_size = params->tx_burst_size;
+       req->tx_tdtype = params->tx_tdtype;
 
        ret = ti_sci_do_xfer(info, xfer);
        if (ret) {

diff --git a/drivers/firmware/ti_sci.h b/drivers/firmware/ti_sci.h
index 57cd040..dca19ca 100644 (file)
--- a/drivers/firmware/ti_sci.h
+++ b/drivers/firmware/ti_sci.h
@@ -910,6 +910,7 @@ struct rm_ti_sci_msg_udmap_rx_flow_opt_cfg {
  *   12 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::tx_credit_count
  *   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
  *
  * @nav_id: SoC device ID of Navigator Subsystem where tx channel is located
  *
@@ -973,6 +974,11 @@ struct rm_ti_sci_msg_udmap_rx_flow_opt_cfg {
  *
  * @tx_burst_size: UDMAP transmit channel burst size configuration to be
  * programmed into the tx_burst_size field of the TCHAN_TCFG register.
+ *
+ * @tx_tdtype: UDMAP transmit channel teardown type configuration to be
+ * programmed into the tdtype field of the TCHAN_TCFG register:
+ * 0 - Return immediately
+ * 1 - Wait for completion message from remote peer
  */
 struct ti_sci_msg_rm_udmap_tx_ch_cfg_req {
        struct ti_sci_msg_hdr hdr;
@@ -994,6 +1000,7 @@ struct ti_sci_msg_rm_udmap_tx_ch_cfg_req {
        u16 fdepth;
        u8 tx_sched_priority;
        u8 tx_burst_size;
+       u8 tx_tdtype;
 } __packed;
 
 /**

diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h
index cf27b08..d254d99 100644 (file)
--- a/include/linux/soc/ti/ti_sci_protocol.h
+++ b/include/linux/soc/ti/ti_sci_protocol.h
@@ -345,6 +345,7 @@ struct ti_sci_msg_rm_udmap_tx_ch_cfg {
 #define TI_SCI_MSG_VALUE_RM_UDMAP_CH_TX_SUPR_TDPKT_VALID        BIT(11)
 #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)
        u16 nav_id;
        u16 index;
        u8 tx_pause_on_err;
@@ -362,6 +363,7 @@ struct ti_sci_msg_rm_udmap_tx_ch_cfg {
        u16 fdepth;
        u8 tx_sched_priority;
        u8 tx_burst_size;
+       u8 tx_tdtype;
 };
 
 /**