forked from ~ljy/RK356X_SDK_RELEASE
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hc
2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc 
 kernel/drivers/slimbus/qcom-ngd-ctrl.c
....@@ -666,10 +666,12 @@
666666 	struct device *dev = ctrl->dev;
667667 	int ret, size;
668668 
669
-	ctrl->dma_rx_channel = dma_request_slave_channel(dev, "rx");
670
-	if (!ctrl->dma_rx_channel) {
671
-		dev_err(dev, "Failed to request dma channels");
672
-		return -EINVAL;
669
+	ctrl->dma_rx_channel = dma_request_chan(dev, "rx");
670
+	if (IS_ERR(ctrl->dma_rx_channel)) {
671
+		dev_err(dev, "Failed to request RX dma channel");
672
+		ret = PTR_ERR(ctrl->dma_rx_channel);
673
+		ctrl->dma_rx_channel = NULL;
674
+		return ret;
673675 	}
674676 
675677 	size = QCOM_SLIM_NGD_DESC_NUM * SLIM_MSGQ_BUF_LEN;
....@@ -703,10 +705,12 @@
703705 	int ret = 0;
704706 	int size;
705707 
706
-	ctrl->dma_tx_channel = dma_request_slave_channel(dev, "tx");
707
-	if (!ctrl->dma_tx_channel) {
708
-		dev_err(dev, "Failed to request dma channels");
709
-		return -EINVAL;
708
+	ctrl->dma_tx_channel = dma_request_chan(dev, "tx");
709
+	if (IS_ERR(ctrl->dma_tx_channel)) {
710
+		dev_err(dev, "Failed to request TX dma channel");
711
+		ret = PTR_ERR(ctrl->dma_tx_channel);
712
+		ctrl->dma_tx_channel = NULL;
713
+		return ret;
710714 	}
711715 
712716 	size = ((QCOM_SLIM_NGD_DESC_NUM + 1) * SLIM_MSGQ_BUF_LEN);
....@@ -777,9 +781,6 @@
777781 	u8 la = txn->la;
778782 	bool usr_msg = false;
779783 
780
-	if (txn->mc & SLIM_MSG_CLK_PAUSE_SEQ_FLG)
781
-		return -EPROTONOSUPPORT;
782
-
783784 	if (txn->mt == SLIM_MSG_MT_CORE &&
784785 		(txn->mc >= SLIM_MSG_MC_BEGIN_RECONFIGURATION &&
785786 		 txn->mc <= SLIM_MSG_MC_RECONFIGURE_NOW))
....@@ -790,7 +791,7 @@
790791 
791792 	if (txn->msg->num_bytes > SLIM_MSGQ_BUF_LEN ||
792793 			txn->rl > SLIM_MSGQ_BUF_LEN) {
793
-		dev_err(ctrl->dev, "msg exeeds HW limit\n");
794
+		dev_err(ctrl->dev, "msg exceeds HW limit\n");
794795 		return -EINVAL;
795796 	}
796797 
....@@ -1004,6 +1005,7 @@
10041005 				   struct slim_eaddr *ea, u8 *laddr)
10051006 {
10061007 	struct slim_val_inf msg =  {0};
1008
+	u8 failed_ea[6] = {0, 0, 0, 0, 0, 0};
10071009 	struct slim_msg_txn txn;
10081010 	u8 wbuf[10] = {0};
10091011 	u8 rbuf[10] = {0};
....@@ -1033,6 +1035,9 @@
10331035 		slim_free_txn_tid(ctrl, &txn);
10341036 		return ret;
10351037 	}
1038
+
1039
+	if (!memcmp(rbuf, failed_ea, 6))
1040
+		return -ENXIO;
10361041 
10371042 	*laddr = rbuf[6];
10381043 
....@@ -1324,6 +1329,9 @@
13241329 	{
13251330 		.compatible = "qcom,slim-ngd-v1.5.0",
13261331 		.data = &ngd_v1_5_offset_info,
1332
+	},{
1333
+		.compatible = "qcom,slim-ngd-v2.1.0",
1334
+		.data = &ngd_v1_5_offset_info,
13271335 	},
13281336 	{}
13291337 };
....@@ -1346,12 +1354,15 @@
13461354 			continue;
13471355 
13481356 		ngd = kzalloc(sizeof(*ngd), GFP_KERNEL);
1349
-		if (!ngd)
1357
+		if (!ngd) {
1358
+			of_node_put(node);
13501359 			return -ENOMEM;
1360
+		}
13511361 
13521362 		ngd->pdev = platform_device_alloc(QCOM_SLIM_NGD_DRV_NAME, id);
13531363 		if (!ngd->pdev) {
13541364 			kfree(ngd);
1365
+			of_node_put(node);
13551366 			return -ENOMEM;
13561367 		}
13571368 		ngd->id = id;
....@@ -1363,7 +1374,6 @@
13631374 		platform_device_add(ngd->pdev);
13641375 		ngd->base = ctrl->base + ngd->id * data->offset +
13651376 					(ngd->id - 1) * data->size;
1366
-		ctrl->ngd = ngd;
13671377 
13681378 		return 0;
13691379 	}