msm: camera: reqmgr: Add support for dual trigger

Currently CRM waits for a single trigger to apply settings
for all the devices on a given link. This change provides
provision for CRM to wait on two triggers prior to applying
a given setting.

CRs-Fixed: 2627065
Change-Id: If6e4c9281cfd1bf1a8ffa369daee060d79f3c39e
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>

drivers/cam_isp/cam_isp_context.c

@@ -1313,6 +1313,7 @@ static int __cam_isp_ctx_notify_sof_in_activated_state(
 			notify.trigger = CAM_TRIGGER_POINT_SOF;
 			notify.req_id = ctx_isp->req_info.last_bufdone_req_id;
 			notify.sof_timestamp_val = ctx_isp->sof_timestamp_val;
+			notify.trigger_id = ctx_isp->trigger_id;
 
 			ctx->ctx_crm_intf->notify_trigger(&notify);
 			CAM_DBG(CAM_ISP, "Notify CRM  SOF frame %lld ctx %u",
@@ -4517,6 +4518,7 @@ static int __cam_isp_ctx_link_in_acquired(struct cam_context *ctx,
 	ctx->link_hdl = link->link_hdl;
 	ctx->ctx_crm_intf = link->crm_cb;
 	ctx_isp->subscribe_event = link->subscribe_event;
+	ctx_isp->trigger_id = link->trigger_id;
 
 	/* change state only if we had the init config */
 	if (ctx_isp->init_received) {
@@ -4533,9 +4535,12 @@ static int __cam_isp_ctx_unlink_in_acquired(struct cam_context *ctx,
 	struct cam_req_mgr_core_dev_link_setup *unlink)
 {
 	int rc = 0;
+	struct cam_isp_context *ctx_isp =
+		(struct cam_isp_context *) ctx->ctx_priv;
 
 	ctx->link_hdl = -1;
 	ctx->ctx_crm_intf = NULL;
+	ctx_isp->trigger_id = -1;
 
 	return rc;
 }
@@ -4550,6 +4555,7 @@ static int __cam_isp_ctx_get_dev_info_in_acquired(struct cam_context *ctx,
 	dev_info->dev_id = CAM_REQ_MGR_DEVICE_IFE;
 	dev_info->p_delay = 1;
 	dev_info->trigger = CAM_TRIGGER_POINT_SOF;
+	dev_info->trigger_on = true;
 
 	return rc;
 }