net: hns: use platform_get_irq instead of irq_of_parse_and_map

As irq_of_parse_and_map is only used by DT case, it is excepted to use
a uniform interface. So it is used platform_get_irq() instead.
Signed-off-by: NKejian Yan <yankejian@huawei.com>
Signed-off-by: NYisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c

@@ -458,7 +458,6 @@ void hns_rcb_get_cfg(struct rcb_common_cb *rcb_common)
 	u32 i;
 	u32 ring_num = rcb_common->ring_num;
 	int base_irq_idx = hns_rcb_get_base_irq_idx(rcb_common);
-	struct device_node *np = rcb_common->dsaf_dev->dev->of_node;
 	struct platform_device *pdev =
 		to_platform_device(rcb_common->dsaf_dev->dev);
 	bool is_ver1 = AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver);
@@ -473,10 +472,10 @@ void hns_rcb_get_cfg(struct rcb_common_cb *rcb_common)
 		ring_pair_cb->port_id_in_comm =
 			hns_rcb_get_port_in_comm(rcb_common, i);
 		ring_pair_cb->virq[HNS_RCB_IRQ_IDX_TX] =
-		is_ver1 ? irq_of_parse_and_map(np, base_irq_idx + i * 2) :
+		is_ver1 ? platform_get_irq(pdev, base_irq_idx + i * 2) :
 			  platform_get_irq(pdev, base_irq_idx + i * 3 + 1);
 		ring_pair_cb->virq[HNS_RCB_IRQ_IDX_RX] =
-		is_ver1 ? irq_of_parse_and_map(np, base_irq_idx + i * 2 + 1) :
+		is_ver1 ? platform_get_irq(pdev, base_irq_idx + i * 2 + 1) :
 			  platform_get_irq(pdev, base_irq_idx + i * 3);
 		ring_pair_cb->q.phy_base =
 			RCB_COMM_BASE_TO_RING_BASE(rcb_common->phy_base, i);