Merge branch 'pci/scoped-cleanup'

- Use for_each_available_child_of_node_scoped() to simplify apple, kirin,
  mediatek, mt7621, tegra drivers (Zhang Zekun)

* pci/scoped-cleanup:
  PCI: tegra: Use helper function for_each_child_of_node_scoped()
  PCI: apple: Use helper function for_each_child_of_node_scoped()
  PCI: mt7621: Use helper function for_each_available_child_of_node_scoped()
  PCI: mediatek: Use helper function for_each_available_child_of_node_scoped()
  PCI: kirin: Tidy up _probe() related function with dev_err_probe()
  PCI: kirin: Use helper function for_each_available_child_of_node_scoped()

1 files changed, 18 insertions, 32 deletions

diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
index 1b2088acb538..d0e6a3811b00 100644
--- a/drivers/pci/controller/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
@@ -216,10 +216,9 @@ static int hi3660_pcie_phy_start(struct hi3660_pcie_phy *phy)
 
 	usleep_range(PIPE_CLK_WAIT_MIN, PIPE_CLK_WAIT_MAX);
 	reg_val = kirin_apb_phy_readl(phy, PCIE_APB_PHY_STATUS0);
-	if (reg_val & PIPE_CLK_STABLE) {
-		dev_err(dev, "PIPE clk is not stable\n");
-		return -EINVAL;
-	}
+	if (reg_val & PIPE_CLK_STABLE)
+		return dev_err_probe(dev, -ETIMEDOUT,
+				     "PIPE clk is not stable\n");
 
 	return 0;
 }
@@ -371,10 +370,9 @@ static int kirin_pcie_get_gpio_enable(struct kirin_pcie *pcie,
 	if (ret < 0)
 		return 0;
 
-	if (ret > MAX_PCI_SLOTS) {
-		dev_err(dev, "Too many GPIO clock requests!\n");
-		return -EINVAL;
-	}
+	if (ret > MAX_PCI_SLOTS)
+		return dev_err_probe(dev, -EINVAL,
+				     "Too many GPIO clock requests!\n");
 
 	pcie->n_gpio_clkreq = ret;
 
@@ -420,17 +418,16 @@ static int kirin_pcie_parse_port(struct kirin_pcie *pcie,
 						     "unable to get a valid reset gpio\n");
 			}
 
-			if (pcie->num_slots + 1 >= MAX_PCI_SLOTS) {
-				dev_err(dev, "Too many PCI slots!\n");
-				return -EINVAL;
-			}
+			if (pcie->num_slots + 1 >= MAX_PCI_SLOTS)
+				return dev_err_probe(dev, -EINVAL,
+						     "Too many PCI slots!\n");
+
 			pcie->num_slots++;
 
 			ret = of_pci_get_devfn(child);
-			if (ret < 0) {
-				dev_err(dev, "failed to parse devfn: %d\n", ret);
-				return ret;
-			}
+			if (ret < 0)
+				return dev_err_probe(dev, ret,
+						     "failed to parse devfn\n");
 
 			slot = PCI_SLOT(ret);
 
@@ -452,7 +449,7 @@ static long kirin_pcie_get_resource(struct kirin_pcie *kirin_pcie,
 				    struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct device_node *child, *node = dev->of_node;
+	struct device_node *node = dev->of_node;
 	void __iomem *apb_base;
 	int ret;
 
@@ -477,17 +474,13 @@ static long kirin_pcie_get_resource(struct kirin_pcie *kirin_pcie,
 		return ret;
 
 	/* Parse OF children */
-	for_each_available_child_of_node(node, child) {
+	for_each_available_child_of_node_scoped(node, child) {
 		ret = kirin_pcie_parse_port(kirin_pcie, pdev, child);
 		if (ret)
-			goto put_node;
+			return ret;
 	}
 
 	return 0;
-
-put_node:
-	of_node_put(child);
-	return ret;
 }
 
 static void kirin_pcie_sideband_dbi_w_mode(struct kirin_pcie *kirin_pcie,
@@ -729,16 +722,9 @@ static int kirin_pcie_probe(struct platform_device *pdev)
 	struct dw_pcie *pci;
 	int ret;
 
-	if (!dev->of_node) {
-		dev_err(dev, "NULL node\n");
-		return -EINVAL;
-	}
-
 	data = of_device_get_match_data(dev);
-	if (!data) {
-		dev_err(dev, "OF data missing\n");
-		return -EINVAL;
-	}
+	if (!data)
+		return dev_err_probe(dev, -EINVAL, "OF data missing\n");
 
 	kirin_pcie = devm_kzalloc(dev, sizeof(struct kirin_pcie), GFP_KERNEL);
 	if (!kirin_pcie)