[v3,08/10] PCI: xilinx-nwl: Use pci_host_alloc_intx_irqd() helper to get irq domain for INTx

Message ID 1528874817-7911-1-git-send-email-shawn.lin@rock-chips.com
State New
Headers show
Series
  • Add new helper to allocate IRQ domain for host drivers
Related show

Commit Message

Shawn Lin June 13, 2018, 7:26 a.m.
Just avoid code duplication, but no functional change intended.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
---

Changes in v3: None
Changes in v2: None

 drivers/pci/controller/pcie-xilinx-nwl.c | 22 +++++-----------------
 1 file changed, 5 insertions(+), 17 deletions(-)

Patch

diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
index 6a4bbb5..b0d13bb 100644
--- a/drivers/pci/controller/pcie-xilinx-nwl.c
+++ b/drivers/pci/controller/pcie-xilinx-nwl.c
@@ -546,24 +546,12 @@  static int nwl_pcie_init_msi_irq_domain(struct nwl_pcie *pcie)
 static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
 {
 	struct device *dev = pcie->dev;
-	struct device_node *node = dev->of_node;
-	struct device_node *legacy_intc_node;
-
-	legacy_intc_node = of_get_next_child(node, NULL);
-	if (!legacy_intc_node) {
-		dev_err(dev, "No legacy intc node found\n");
-		return -EINVAL;
-	}
 
-	pcie->legacy_irq_domain = irq_domain_add_linear(legacy_intc_node,
-							PCI_NUM_INTX,
-							&legacy_domain_ops,
-							pcie);
-
-	if (!pcie->legacy_irq_domain) {
-		dev_err(dev, "failed to create IRQ domain\n");
-		return -ENOMEM;
-	}
+	pcie->legacy_irq_domain = pci_host_alloc_intx_irqd(dev, pcie, false,
+							   &legacy_domain_ops,
+							   NULL);
+	if (IS_ERR(pcie->legacy_irq_domain))
+		return PTR_ERR(pcie->legacy_irq_domain);
 
 	raw_spin_lock_init(&pcie->leg_mask_lock);
 	nwl_pcie_init_msi_irq_domain(pcie);