PCI: Set default bridge parent device

robherring · Lorenzo Pieralisi · commit 6a589900d050 · 2020-07-23T11:20:49.000+01:00
The host bridge's parent device is always the platform device. As we already have a pointer to it in the devres functions, let's initialize the parent device. Drivers can still override the parent if desired. Link: https://lore.kernel.org/r/20200722022514.1283916-3-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c
@@ -241,7 +241,6 @@ int cdns_pcie_host_setup(struct cdns_pcie_rc *rc)
 	if (ret)
 		goto err_init;
 
-	bridge->dev.parent = dev;
 	bridge->busnr = pcie->bus;
 	bridge->ops = &cdns_pcie_host_ops;
 	bridge->map_irq = of_irq_parse_and_map_pci;
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -475,7 +475,6 @@ int dw_pcie_host_init(struct pcie_port *pp)
 
 	pp->root_bus_nr = pp->busn->start;
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = pp;
 	bridge->busnr = pp->root_bus_nr;
 	bridge->ops = &dw_pcie_ops;
diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
@@ -605,7 +605,6 @@ int mobiveil_pcie_host_probe(struct mobiveil_pcie *pcie)
 	}
 
 	/* Initialize bridge */
-	bridge->dev.parent = dev;
 	bridge->sysdata = pcie;
 	bridge->busnr = rp->root_bus_nr;
 	bridge->ops = &mobiveil_pcie_ops;
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
@@ -1183,7 +1183,6 @@ static int advk_pcie_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = pcie;
 	bridge->busnr = 0;
 	bridge->ops = &advk_pcie_ops;
diff --git a/drivers/pci/controller/pci-ftpci100.c b/drivers/pci/controller/pci-ftpci100.c
@@ -436,7 +436,6 @@ static int faraday_pci_probe(struct platform_device *pdev)
 	if (!host)
 		return -ENOMEM;
 
-	host->dev.parent = dev;
 	host->ops = &faraday_pci_ops;
 	host->busnr = 0;
 	host->msi = NULL;
diff --git a/drivers/pci/controller/pci-host-common.c b/drivers/pci/controller/pci-host-common.c
@@ -76,7 +76,6 @@ int pci_host_common_probe(struct platform_device *pdev)
 	if (!pci_has_flag(PCI_PROBE_ONLY))
 		pci_add_flags(PCI_REASSIGN_ALL_BUS);
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = cfg;
 	bridge->busnr = cfg->busr.start;
 	bridge->ops = (struct pci_ops *)&ops->pci_ops;
diff --git a/drivers/pci/controller/pci-loongson.c b/drivers/pci/controller/pci-loongson.c
@@ -225,7 +225,6 @@ static int loongson_pci_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = priv;
 	bridge->ops = &loongson_pci_ops;
 	bridge->map_irq = loongson_map_irq;
diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c
@@ -1116,7 +1116,6 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
 
 	pcie->nports = i;
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = pcie;
 	bridge->busnr = 0;
 	bridge->ops = &mvebu_pcie_ops;
diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
@@ -2713,7 +2713,6 @@ static int tegra_pcie_probe(struct platform_device *pdev)
 	}
 
 	host->busnr = bus->start;
-	host->dev.parent = &pdev->dev;
 	host->ops = &tegra_pcie_ops;
 	host->map_irq = tegra_pcie_map_irq;
 	host->swizzle_irq = pci_common_swizzle;
diff --git a/drivers/pci/controller/pci-v3-semi.c b/drivers/pci/controller/pci-v3-semi.c
@@ -723,7 +723,6 @@ static int v3_pci_probe(struct platform_device *pdev)
 	if (!host)
 		return -ENOMEM;
 
-	host->dev.parent = dev;
 	host->ops = &v3_pci_ops;
 	host->busnr = 0;
 	host->msi = NULL;
diff --git a/drivers/pci/controller/pci-versatile.c b/drivers/pci/controller/pci-versatile.c
@@ -153,7 +153,6 @@ static int versatile_pci_probe(struct platform_device *pdev)
 
 	pci_add_flags(PCI_REASSIGN_ALL_BUS);
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = NULL;
 	bridge->busnr = 0;
 	bridge->ops = &pci_versatile_ops;
diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c
@@ -623,7 +623,6 @@ static int xgene_pcie_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = port;
 	bridge->busnr = 0;
 	bridge->ops = &xgene_pcie_ops;
diff --git a/drivers/pci/controller/pcie-altera.c b/drivers/pci/controller/pcie-altera.c
@@ -813,7 +813,6 @@ static int altera_pcie_probe(struct platform_device *pdev)
 	cra_writel(pcie, P2A_INT_ENA_ALL, P2A_INT_ENABLE);
 	altera_pcie_host_init(pcie);
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = pcie;
 	bridge->busnr = pcie->root_bus_nr;
 	bridge->ops = &altera_pcie_ops;
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
@@ -994,7 +994,6 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 		}
 	}
 
-	bridge->dev.parent = &pdev->dev;
 	bridge->busnr = 0;
 	bridge->ops = &brcm_pcie_ops;
 	bridge->sysdata = pcie;
diff --git a/drivers/pci/controller/pcie-iproc.c b/drivers/pci/controller/pcie-iproc.c
@@ -1524,7 +1524,6 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res)
 			dev_info(dev, "not using iProc MSI\n");
 
 	host->busnr = 0;
-	host->dev.parent = dev;
 	host->ops = &iproc_pcie_ops;
 	host->sysdata = pcie;
 	host->map_irq = pcie->map_irq;
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
@@ -1095,7 +1095,6 @@ static int mtk_pcie_probe(struct platform_device *pdev)
 		return err;
 
 	host->busnr = pcie->busnr;
-	host->dev.parent = pcie->dev;
 	host->ops = pcie->soc->ops;
 	host->map_irq = of_irq_parse_and_map_pci;
 	host->swizzle_irq = pci_common_swizzle;
diff --git a/drivers/pci/controller/pcie-rcar-host.c b/drivers/pci/controller/pcie-rcar-host.c
@@ -329,7 +329,6 @@ static int rcar_pcie_enable(struct rcar_pcie_host *host)
 {
 	struct pci_host_bridge *bridge = pci_host_bridge_from_priv(host);
 	struct rcar_pcie *pcie = &host->pcie;
-	struct device *dev = pcie->dev;
 
 	/* Try setting 5 GT/s link speed */
 	rcar_pcie_force_speedup(pcie);
@@ -338,7 +337,6 @@ static int rcar_pcie_enable(struct rcar_pcie_host *host)
 
 	pci_add_flags(PCI_REASSIGN_ALL_BUS);
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = host;
 	bridge->busnr = host->root_bus_nr;
 	bridge->ops = &rcar_pcie_ops;
diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c
@@ -1007,7 +1007,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
 		goto err_remove_irq_domain;
 	}
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = rockchip;
 	bridge->busnr = 0;
 	bridge->ops = &rockchip_pcie_ops;
diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
@@ -854,7 +854,6 @@ static int nwl_pcie_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = pcie;
 	bridge->busnr = pcie->root_busno;
 	bridge->ops = &nwl_pcie_ops;
diff --git a/drivers/pci/controller/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c
@@ -651,7 +651,6 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	bridge->dev.parent = dev;
 	bridge->sysdata = port;
 	bridge->busnr = 0;
 	bridge->ops = &xilinx_pcie_ops;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
@@ -628,6 +628,8 @@ struct pci_host_bridge *devm_pci_alloc_host_bridge(struct device *dev,
 	if (!bridge)
 		return NULL;
 
+	bridge->dev.parent = dev;
+
 	ret = devm_add_action_or_reset(dev, devm_pci_alloc_host_bridge_release,
 				       bridge);
 	if (ret)

Original file line number	Diff line number	Diff line change
`@@ -605,7 +605,6 @@ int mobiveil_pcie_host_probe(struct mobiveil_pcie *pcie)`
`605`	`605`	`}`
`606`	`606`
`607`	`607`	`/* Initialize bridge */`
`608`		`- bridge->dev.parent = dev;`
`609`	`608`	`bridge->sysdata = pcie;`
`610`	`609`	`bridge->busnr = rp->root_bus_nr;`
`611`	`610`	`bridge->ops = &mobiveil_pcie_ops;`
Original file line number	Diff line number	Diff line change
`@@ -1183,7 +1183,6 @@ static int advk_pcie_probe(struct platform_device *pdev)`
`1183`	`1183`	`return ret;`
`1184`	`1184`	`}`
`1185`	`1185`
`1186`		`- bridge->dev.parent = dev;`
`1187`	`1186`	`bridge->sysdata = pcie;`
`1188`	`1187`	`bridge->busnr = 0;`
`1189`	`1188`	`bridge->ops = &advk_pcie_ops;`
Original file line number	Diff line number	Diff line change
`@@ -225,7 +225,6 @@ static int loongson_pci_probe(struct platform_device *pdev)`
`225`	`225`	`return err;`
`226`	`226`	`}`
`227`	`227`
`228`		`- bridge->dev.parent = dev;`
`229`	`228`	`bridge->sysdata = priv;`
`230`	`229`	`bridge->ops = &loongson_pci_ops;`
`231`	`230`	`bridge->map_irq = loongson_map_irq;`
Original file line number	Diff line number	Diff line change
`@@ -2713,7 +2713,6 @@ static int tegra_pcie_probe(struct platform_device *pdev)`
`2713`	`2713`	`}`
`2714`	`2714`
`2715`	`2715`	`host->busnr = bus->start;`
`2716`		`- host->dev.parent = &pdev->dev;`
`2717`	`2716`	`host->ops = &tegra_pcie_ops;`
`2718`	`2717`	`host->map_irq = tegra_pcie_map_irq;`
`2719`	`2718`	`host->swizzle_irq = pci_common_swizzle;`