Merge tag 'pci-v4.9-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

PCI changes for the v4.9 merge window:
 "Here are some more changes I'd like to have in v4.9.  There's one
  small Tegra bug fix in the PHY poweroff path, which is only used in
  failure paths.

  The rest is all strictly cleanup that should make host bridge drivers
  more readable, but shouldn't actually change any behavior.

  Summary:

   - use local struct device pointers in many host bridge drivers for
     clarity

   - remove unused platform data

   - use generic DesignWare accessors

   - misc cleanups: remove redundant structure entries and re-order
     structure members to put comon generic fields first etc"

* tag 'pci-v4.9-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (108 commits)
  MAINTAINERS: Add maintainer for the PCIe Marvell Armada 8K driver
  MAINTAINERS: Add DT binding to the Aardvark PCIe driver maintainer
  PCI: rockchip: Indent "if" statement body
  PCI: hisi: Reorder struct hisi_pcie
  PCI: hisi: Pass device-specific struct to internal functions
  PCI: hisi: Include register block base in PCIE_SYS_STATE4 address
  PCI: dra7xx: Reorder struct dra7xx_pcie
  PCI: xilinx-nwl: Remove unused platform data
  PCI: xilinx-nwl: Add local struct device pointers
  PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument
  PCI: xilinx: Remove unused platform data
  PCI: xilinx: Add local struct device pointers
  PCI: xgene: Add register accessors
  PCI: xgene: Pass struct xgene_pcie_port to setup functions
  PCI: xgene: Remove unused platform data
  PCI: tegra: Remove unused platform data
  PCI: tegra: Add local struct device pointers
  PCI: tegra: Fix argument order in tegra_pcie_phy_disable()
  PCI: rockchip: Remove unused platform data
  PCI: rcar-gen2: Add local struct device pointers
  ...

1 files changed, 56 insertions, 53 deletions

diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/host/pcie-xilinx-nwl.c
index 67eae4179290..43eaa4afab94 100644
--- a/drivers/pci/host/pcie-xilinx-nwl.c
+++ b/drivers/pci/host/pcie-xilinx-nwl.c
@@ -212,6 +212,7 @@ static bool nwl_phy_link_up(struct nwl_pcie *pcie)
 
 static int nwl_wait_for_link(struct nwl_pcie *pcie)
 {
+	struct device *dev = pcie->dev;
 	int retries;
 
 	/* check if the link is up or not */
@@ -221,7 +222,7 @@ static int nwl_wait_for_link(struct nwl_pcie *pcie)
 		usleep_range(LINK_WAIT_USLEEP_MIN, LINK_WAIT_USLEEP_MAX);
 	}
 
-	dev_err(pcie->dev, "PHY link never came up\n");
+	dev_err(dev, "PHY link never came up\n");
 	return -ETIMEDOUT;
 }
 
@@ -277,6 +278,7 @@ static struct pci_ops nwl_pcie_ops = {
 static irqreturn_t nwl_pcie_misc_handler(int irq, void *data)
 {
 	struct nwl_pcie *pcie = data;
+	struct device *dev = pcie->dev;
 	u32 misc_stat;
 
 	/* Checking for misc interrupts */
@@ -286,45 +288,43 @@ static irqreturn_t nwl_pcie_misc_handler(int irq, void *data)
 		return IRQ_NONE;
 
 	if (misc_stat & MSGF_MISC_SR_RXMSG_OVER)
-		dev_err(pcie->dev, "Received Message FIFO Overflow\n");
+		dev_err(dev, "Received Message FIFO Overflow\n");
 
 	if (misc_stat & MSGF_MISC_SR_SLAVE_ERR)
-		dev_err(pcie->dev, "Slave error\n");
+		dev_err(dev, "Slave error\n");
 
 	if (misc_stat & MSGF_MISC_SR_MASTER_ERR)
-		dev_err(pcie->dev, "Master error\n");
+		dev_err(dev, "Master error\n");
 
 	if (misc_stat & MSGF_MISC_SR_I_ADDR_ERR)
-		dev_err(pcie->dev,
-			"In Misc Ingress address translation error\n");
+		dev_err(dev, "In Misc Ingress address translation error\n");
 
 	if (misc_stat & MSGF_MISC_SR_E_ADDR_ERR)
-		dev_err(pcie->dev,
-			"In Misc Egress address translation error\n");
+		dev_err(dev, "In Misc Egress address translation error\n");
 
 	if (misc_stat & MSGF_MISC_SR_FATAL_AER)
-		dev_err(pcie->dev, "Fatal Error in AER Capability\n");
+		dev_err(dev, "Fatal Error in AER Capability\n");
 
 	if (misc_stat & MSGF_MISC_SR_NON_FATAL_AER)
-		dev_err(pcie->dev, "Non-Fatal Error in AER Capability\n");
+		dev_err(dev, "Non-Fatal Error in AER Capability\n");
 
 	if (misc_stat & MSGF_MISC_SR_CORR_AER)
-		dev_err(pcie->dev, "Correctable Error in AER Capability\n");
+		dev_err(dev, "Correctable Error in AER Capability\n");
 
 	if (misc_stat & MSGF_MISC_SR_UR_DETECT)
-		dev_err(pcie->dev, "Unsupported request Detected\n");
+		dev_err(dev, "Unsupported request Detected\n");
 
 	if (misc_stat & MSGF_MISC_SR_NON_FATAL_DEV)
-		dev_err(pcie->dev, "Non-Fatal Error Detected\n");
+		dev_err(dev, "Non-Fatal Error Detected\n");
 
 	if (misc_stat & MSGF_MISC_SR_FATAL_DEV)
-		dev_err(pcie->dev, "Fatal Error Detected\n");
+		dev_err(dev, "Fatal Error Detected\n");
 
 	if (misc_stat & MSGF_MSIC_SR_LINK_AUTO_BWIDTH)
-		dev_info(pcie->dev, "Link Autonomous Bandwidth Management Status bit set\n");
+		dev_info(dev, "Link Autonomous Bandwidth Management Status bit set\n");
 
 	if (misc_stat & MSGF_MSIC_SR_LINK_BWIDTH)
-		dev_info(pcie->dev, "Link Bandwidth Management Status bit set\n");
+		dev_info(dev, "Link Bandwidth Management Status bit set\n");
 
 	/* Clear misc interrupt status */
 	nwl_bridge_writel(pcie, misc_stat, MSGF_MISC_STATUS);
@@ -494,20 +494,21 @@ static const struct irq_domain_ops dev_msi_domain_ops = {
 static int nwl_pcie_init_msi_irq_domain(struct nwl_pcie *pcie)
 {
 #ifdef CONFIG_PCI_MSI
-	struct fwnode_handle *fwnode = of_node_to_fwnode(pcie->dev->of_node);
+	struct device *dev = pcie->dev;
+	struct fwnode_handle *fwnode = of_node_to_fwnode(dev->of_node);
 	struct nwl_msi *msi = &pcie->msi;
 
 	msi->dev_domain = irq_domain_add_linear(NULL, INT_PCI_MSI_NR,
 						&dev_msi_domain_ops, pcie);
 	if (!msi->dev_domain) {
-		dev_err(pcie->dev, "failed to create dev IRQ domain\n");
+		dev_err(dev, "failed to create dev IRQ domain\n");
 		return -ENOMEM;
 	}
 	msi->msi_domain = pci_msi_create_irq_domain(fwnode,
 						    &nwl_msi_domain_info,
 						    msi->dev_domain);
 	if (!msi->msi_domain) {
-		dev_err(pcie->dev, "failed to create msi IRQ domain\n");
+		dev_err(dev, "failed to create msi IRQ domain\n");
 		irq_domain_remove(msi->dev_domain);
 		return -ENOMEM;
 	}
@@ -517,12 +518,13 @@ 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_node *node = pcie->dev->of_node;
+	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(pcie->dev, "No legacy intc node found\n");
+		dev_err(dev, "No legacy intc node found\n");
 		return -EINVAL;
 	}
 
@@ -532,7 +534,7 @@ static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
 							pcie);
 
 	if (!pcie->legacy_irq_domain) {
-		dev_err(pcie->dev, "failed to create IRQ domain\n");
+		dev_err(dev, "failed to create IRQ domain\n");
 		return -ENOMEM;
 	}
 
@@ -542,7 +544,8 @@ static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
 
 static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
 {
-	struct platform_device *pdev = to_platform_device(pcie->dev);
+	struct device *dev = pcie->dev;
+	struct platform_device *pdev = to_platform_device(dev);
 	struct nwl_msi *msi = &pcie->msi;
 	unsigned long base;
 	int ret;
@@ -557,7 +560,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
 	/* Get msi_1 IRQ number */
 	msi->irq_msi1 = platform_get_irq_byname(pdev, "msi1");
 	if (msi->irq_msi1 < 0) {
-		dev_err(&pdev->dev, "failed to get IRQ#%d\n", msi->irq_msi1);
+		dev_err(dev, "failed to get IRQ#%d\n", msi->irq_msi1);
 		ret = -EINVAL;
 		goto err;
 	}
@@ -568,7 +571,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
 	/* Get msi_0 IRQ number */
 	msi->irq_msi0 = platform_get_irq_byname(pdev, "msi0");
 	if (msi->irq_msi0 < 0) {
-		dev_err(&pdev->dev, "failed to get IRQ#%d\n", msi->irq_msi0);
+		dev_err(dev, "failed to get IRQ#%d\n", msi->irq_msi0);
 		ret = -EINVAL;
 		goto err;
 	}
@@ -579,7 +582,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
 	/* Check for msii_present bit */
 	ret = nwl_bridge_readl(pcie, I_MSII_CAPABILITIES) & MSII_PRESENT;
 	if (!ret) {
-		dev_err(pcie->dev, "MSI not present\n");
+		dev_err(dev, "MSI not present\n");
 		ret = -EIO;
 		goto err;
 	}
@@ -628,13 +631,14 @@ err:
 
 static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
 {
-	struct platform_device *pdev = to_platform_device(pcie->dev);
+	struct device *dev = pcie->dev;
+	struct platform_device *pdev = to_platform_device(dev);
 	u32 breg_val, ecam_val, first_busno = 0;
 	int err;
 
 	breg_val = nwl_bridge_readl(pcie, E_BREG_CAPABILITIES) & BREG_PRESENT;
 	if (!breg_val) {
-		dev_err(pcie->dev, "BREG is not present\n");
+		dev_err(dev, "BREG is not present\n");
 		return breg_val;
 	}
 
@@ -665,7 +669,7 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
 
 	ecam_val = nwl_bridge_readl(pcie, E_ECAM_CAPABILITIES) & E_ECAM_PRESENT;
 	if (!ecam_val) {
-		dev_err(pcie->dev, "ECAM is not present\n");
+		dev_err(dev, "ECAM is not present\n");
 		return ecam_val;
 	}
 
@@ -692,23 +696,23 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
 	writel(ecam_val, (pcie->ecam_base + PCI_PRIMARY_BUS));
 
 	if (nwl_pcie_link_up(pcie))
-		dev_info(pcie->dev, "Link is UP\n");
+		dev_info(dev, "Link is UP\n");
 	else
-		dev_info(pcie->dev, "Link is DOWN\n");
+		dev_info(dev, "Link is DOWN\n");
 
 	/* Get misc IRQ number */
 	pcie->irq_misc = platform_get_irq_byname(pdev, "misc");
 	if (pcie->irq_misc < 0) {
-		dev_err(&pdev->dev, "failed to get misc IRQ %d\n",
+		dev_err(dev, "failed to get misc IRQ %d\n",
 			pcie->irq_misc);
 		return -EINVAL;
 	}
 
-	err = devm_request_irq(pcie->dev, pcie->irq_misc,
+	err = devm_request_irq(dev, pcie->irq_misc,
 			       nwl_pcie_misc_handler, IRQF_SHARED,
 			       "nwl_pcie:misc", pcie);
 	if (err) {
-		dev_err(pcie->dev, "fail to register misc IRQ#%d\n",
+		dev_err(dev, "fail to register misc IRQ#%d\n",
 			pcie->irq_misc);
 		return err;
 	}
@@ -744,31 +748,32 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
 static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
 			     struct platform_device *pdev)
 {
-	struct device_node *node = pcie->dev->of_node;
+	struct device *dev = pcie->dev;
+	struct device_node *node = dev->of_node;
 	struct resource *res;
 	const char *type;
 
 	/* Check for device type */
 	type = of_get_property(node, "device_type", NULL);
 	if (!type || strcmp(type, "pci")) {
-		dev_err(pcie->dev, "invalid \"device_type\" %s\n", type);
+		dev_err(dev, "invalid \"device_type\" %s\n", type);
 		return -EINVAL;
 	}
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "breg");
-	pcie->breg_base = devm_ioremap_resource(pcie->dev, res);
+	pcie->breg_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(pcie->breg_base))
 		return PTR_ERR(pcie->breg_base);
 	pcie->phys_breg_base = res->start;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcireg");
-	pcie->pcireg_base = devm_ioremap_resource(pcie->dev, res);
+	pcie->pcireg_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(pcie->pcireg_base))
 		return PTR_ERR(pcie->pcireg_base);
 	pcie->phys_pcie_reg_base = res->start;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg");
-	pcie->ecam_base = devm_ioremap_resource(pcie->dev, res);
+	pcie->ecam_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(pcie->ecam_base))
 		return PTR_ERR(pcie->ecam_base);
 	pcie->phys_ecam_base = res->start;
@@ -776,8 +781,7 @@ static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
 	/* Get intx IRQ number */
 	pcie->irq_intx = platform_get_irq_byname(pdev, "intx");
 	if (pcie->irq_intx < 0) {
-		dev_err(&pdev->dev, "failed to get intx IRQ %d\n",
-			pcie->irq_intx);
+		dev_err(dev, "failed to get intx IRQ %d\n", pcie->irq_intx);
 		return -EINVAL;
 	}
 
@@ -794,7 +798,8 @@ static const struct of_device_id nwl_pcie_of_match[] = {
 
 static int nwl_pcie_probe(struct platform_device *pdev)
 {
-	struct device_node *node = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
 	struct nwl_pcie *pcie;
 	struct pci_bus *bus;
 	struct pci_bus *child;
@@ -802,42 +807,42 @@ static int nwl_pcie_probe(struct platform_device *pdev)
 	resource_size_t iobase = 0;
 	LIST_HEAD(res);
 
-	pcie = devm_kzalloc(&pdev->dev, sizeof(*pcie), GFP_KERNEL);
+	pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
 	if (!pcie)
 		return -ENOMEM;
 
-	pcie->dev = &pdev->dev;
+	pcie->dev = dev;
 	pcie->ecam_value = NWL_ECAM_VALUE_DEFAULT;
 
 	err = nwl_pcie_parse_dt(pcie, pdev);
 	if (err) {
-		dev_err(pcie->dev, "Parsing DT failed\n");
+		dev_err(dev, "Parsing DT failed\n");
 		return err;
 	}
 
 	err = nwl_pcie_bridge_init(pcie);
 	if (err) {
-		dev_err(pcie->dev, "HW Initialization failed\n");
+		dev_err(dev, "HW Initialization failed\n");
 		return err;
 	}
 
 	err = of_pci_get_host_bridge_resources(node, 0, 0xff, &res, &iobase);
 	if (err) {
-		dev_err(pcie->dev, "Getting bridge resources failed\n");
+		dev_err(dev, "Getting bridge resources failed\n");
 		return err;
 	}
 
-	err = devm_request_pci_bus_resources(pcie->dev, &res);
+	err = devm_request_pci_bus_resources(dev, &res);
 	if (err)
 		goto error;
 
 	err = nwl_pcie_init_irq_domain(pcie);
 	if (err) {
-		dev_err(pcie->dev, "Failed creating IRQ Domain\n");
+		dev_err(dev, "Failed creating IRQ Domain\n");
 		goto error;
 	}
 
-	bus = pci_create_root_bus(&pdev->dev, pcie->root_busno,
+	bus = pci_create_root_bus(dev, pcie->root_busno,
 				  &nwl_pcie_ops, pcie, &res);
 	if (!bus) {
 		err = -ENOMEM;
@@ -847,8 +852,7 @@ static int nwl_pcie_probe(struct platform_device *pdev)
 	if (IS_ENABLED(CONFIG_PCI_MSI)) {
 		err = nwl_pcie_enable_msi(pcie, bus);
 		if (err < 0) {
-			dev_err(&pdev->dev,
-				"failed to enable MSI support: %d\n", err);
+			dev_err(dev, "failed to enable MSI support: %d\n", err);
 			goto error;
 		}
 	}
@@ -857,7 +861,6 @@ static int nwl_pcie_probe(struct platform_device *pdev)
 	list_for_each_entry(child, &bus->children, node)
 		pcie_bus_configure_settings(child);
 	pci_bus_add_devices(bus);
-	platform_set_drvdata(pdev, pcie);
 	return 0;
 
 error: