mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
PCI: xilinx-nwl: Add local struct device pointers
Use a local "struct device *dev" for brevity and consistency with other drivers. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
parent
e59e5ff9a0
commit
adf9e284b4
1 changed files with 56 additions and 52 deletions
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@ -212,6 +212,7 @@ static bool nwl_phy_link_up(struct nwl_pcie *pcie)
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static int nwl_wait_for_link(struct nwl_pcie *pcie)
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{
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struct device *dev = pcie->dev;
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int retries;
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/* check if the link is up or not */
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@ -221,7 +222,7 @@ static int nwl_wait_for_link(struct nwl_pcie *pcie)
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usleep_range(LINK_WAIT_USLEEP_MIN, LINK_WAIT_USLEEP_MAX);
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}
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dev_err(pcie->dev, "PHY link never came up\n");
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dev_err(dev, "PHY link never came up\n");
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return -ETIMEDOUT;
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}
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@ -277,6 +278,7 @@ static struct pci_ops nwl_pcie_ops = {
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static irqreturn_t nwl_pcie_misc_handler(int irq, void *data)
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{
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struct nwl_pcie *pcie = data;
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struct device *dev = pcie->dev;
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u32 misc_stat;
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/* Checking for misc interrupts */
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@ -286,45 +288,43 @@ static irqreturn_t nwl_pcie_misc_handler(int irq, void *data)
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return IRQ_NONE;
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if (misc_stat & MSGF_MISC_SR_RXMSG_OVER)
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dev_err(pcie->dev, "Received Message FIFO Overflow\n");
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dev_err(dev, "Received Message FIFO Overflow\n");
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if (misc_stat & MSGF_MISC_SR_SLAVE_ERR)
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dev_err(pcie->dev, "Slave error\n");
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dev_err(dev, "Slave error\n");
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if (misc_stat & MSGF_MISC_SR_MASTER_ERR)
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dev_err(pcie->dev, "Master error\n");
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dev_err(dev, "Master error\n");
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if (misc_stat & MSGF_MISC_SR_I_ADDR_ERR)
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dev_err(pcie->dev,
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"In Misc Ingress address translation error\n");
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dev_err(dev, "In Misc Ingress address translation error\n");
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if (misc_stat & MSGF_MISC_SR_E_ADDR_ERR)
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dev_err(pcie->dev,
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"In Misc Egress address translation error\n");
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dev_err(dev, "In Misc Egress address translation error\n");
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if (misc_stat & MSGF_MISC_SR_FATAL_AER)
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dev_err(pcie->dev, "Fatal Error in AER Capability\n");
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dev_err(dev, "Fatal Error in AER Capability\n");
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if (misc_stat & MSGF_MISC_SR_NON_FATAL_AER)
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dev_err(pcie->dev, "Non-Fatal Error in AER Capability\n");
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dev_err(dev, "Non-Fatal Error in AER Capability\n");
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if (misc_stat & MSGF_MISC_SR_CORR_AER)
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dev_err(pcie->dev, "Correctable Error in AER Capability\n");
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dev_err(dev, "Correctable Error in AER Capability\n");
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if (misc_stat & MSGF_MISC_SR_UR_DETECT)
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dev_err(pcie->dev, "Unsupported request Detected\n");
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dev_err(dev, "Unsupported request Detected\n");
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if (misc_stat & MSGF_MISC_SR_NON_FATAL_DEV)
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dev_err(pcie->dev, "Non-Fatal Error Detected\n");
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dev_err(dev, "Non-Fatal Error Detected\n");
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if (misc_stat & MSGF_MISC_SR_FATAL_DEV)
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dev_err(pcie->dev, "Fatal Error Detected\n");
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dev_err(dev, "Fatal Error Detected\n");
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if (misc_stat & MSGF_MSIC_SR_LINK_AUTO_BWIDTH)
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dev_info(pcie->dev, "Link Autonomous Bandwidth Management Status bit set\n");
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dev_info(dev, "Link Autonomous Bandwidth Management Status bit set\n");
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if (misc_stat & MSGF_MSIC_SR_LINK_BWIDTH)
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dev_info(pcie->dev, "Link Bandwidth Management Status bit set\n");
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dev_info(dev, "Link Bandwidth Management Status bit set\n");
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/* Clear misc interrupt status */
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nwl_bridge_writel(pcie, misc_stat, MSGF_MISC_STATUS);
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@ -494,20 +494,21 @@ static const struct irq_domain_ops dev_msi_domain_ops = {
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static int nwl_pcie_init_msi_irq_domain(struct nwl_pcie *pcie)
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{
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#ifdef CONFIG_PCI_MSI
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struct fwnode_handle *fwnode = of_node_to_fwnode(pcie->dev->of_node);
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struct device *dev = pcie->dev;
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struct fwnode_handle *fwnode = of_node_to_fwnode(dev->of_node);
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struct nwl_msi *msi = &pcie->msi;
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msi->dev_domain = irq_domain_add_linear(NULL, INT_PCI_MSI_NR,
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&dev_msi_domain_ops, pcie);
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if (!msi->dev_domain) {
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dev_err(pcie->dev, "failed to create dev IRQ domain\n");
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dev_err(dev, "failed to create dev IRQ domain\n");
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return -ENOMEM;
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}
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msi->msi_domain = pci_msi_create_irq_domain(fwnode,
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&nwl_msi_domain_info,
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msi->dev_domain);
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if (!msi->msi_domain) {
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dev_err(pcie->dev, "failed to create msi IRQ domain\n");
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dev_err(dev, "failed to create msi IRQ domain\n");
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irq_domain_remove(msi->dev_domain);
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return -ENOMEM;
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}
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@ -517,12 +518,13 @@ static int nwl_pcie_init_msi_irq_domain(struct nwl_pcie *pcie)
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static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
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{
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struct device_node *node = pcie->dev->of_node;
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struct device *dev = pcie->dev;
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struct device_node *node = dev->of_node;
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struct device_node *legacy_intc_node;
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legacy_intc_node = of_get_next_child(node, NULL);
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if (!legacy_intc_node) {
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dev_err(pcie->dev, "No legacy intc node found\n");
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dev_err(dev, "No legacy intc node found\n");
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return -EINVAL;
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}
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@ -532,7 +534,7 @@ static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
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pcie);
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if (!pcie->legacy_irq_domain) {
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dev_err(pcie->dev, "failed to create IRQ domain\n");
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dev_err(dev, "failed to create IRQ domain\n");
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return -ENOMEM;
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}
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@ -542,7 +544,8 @@ static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
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static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
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{
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struct platform_device *pdev = to_platform_device(pcie->dev);
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struct device *dev = pcie->dev;
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struct platform_device *pdev = to_platform_device(dev);
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struct nwl_msi *msi = &pcie->msi;
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unsigned long base;
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int ret;
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@ -557,7 +560,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
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/* Get msi_1 IRQ number */
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msi->irq_msi1 = platform_get_irq_byname(pdev, "msi1");
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if (msi->irq_msi1 < 0) {
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dev_err(&pdev->dev, "failed to get IRQ#%d\n", msi->irq_msi1);
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dev_err(dev, "failed to get IRQ#%d\n", msi->irq_msi1);
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ret = -EINVAL;
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goto err;
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}
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@ -568,7 +571,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
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/* Get msi_0 IRQ number */
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msi->irq_msi0 = platform_get_irq_byname(pdev, "msi0");
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if (msi->irq_msi0 < 0) {
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dev_err(&pdev->dev, "failed to get IRQ#%d\n", msi->irq_msi0);
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dev_err(dev, "failed to get IRQ#%d\n", msi->irq_msi0);
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ret = -EINVAL;
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goto err;
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}
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@ -579,7 +582,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
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/* Check for msii_present bit */
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ret = nwl_bridge_readl(pcie, I_MSII_CAPABILITIES) & MSII_PRESENT;
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if (!ret) {
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dev_err(pcie->dev, "MSI not present\n");
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dev_err(dev, "MSI not present\n");
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ret = -EIO;
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goto err;
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}
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@ -628,13 +631,14 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
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static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
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{
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struct platform_device *pdev = to_platform_device(pcie->dev);
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struct device *dev = pcie->dev;
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struct platform_device *pdev = to_platform_device(dev);
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u32 breg_val, ecam_val, first_busno = 0;
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int err;
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breg_val = nwl_bridge_readl(pcie, E_BREG_CAPABILITIES) & BREG_PRESENT;
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if (!breg_val) {
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dev_err(pcie->dev, "BREG is not present\n");
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dev_err(dev, "BREG is not present\n");
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return breg_val;
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}
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@ -665,7 +669,7 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
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ecam_val = nwl_bridge_readl(pcie, E_ECAM_CAPABILITIES) & E_ECAM_PRESENT;
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if (!ecam_val) {
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dev_err(pcie->dev, "ECAM is not present\n");
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dev_err(dev, "ECAM is not present\n");
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return ecam_val;
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}
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@ -692,23 +696,23 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
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writel(ecam_val, (pcie->ecam_base + PCI_PRIMARY_BUS));
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if (nwl_pcie_link_up(pcie))
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dev_info(pcie->dev, "Link is UP\n");
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dev_info(dev, "Link is UP\n");
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else
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dev_info(pcie->dev, "Link is DOWN\n");
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dev_info(dev, "Link is DOWN\n");
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/* Get misc IRQ number */
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pcie->irq_misc = platform_get_irq_byname(pdev, "misc");
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if (pcie->irq_misc < 0) {
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dev_err(&pdev->dev, "failed to get misc IRQ %d\n",
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dev_err(dev, "failed to get misc IRQ %d\n",
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pcie->irq_misc);
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return -EINVAL;
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}
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err = devm_request_irq(pcie->dev, pcie->irq_misc,
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err = devm_request_irq(dev, pcie->irq_misc,
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nwl_pcie_misc_handler, IRQF_SHARED,
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"nwl_pcie:misc", pcie);
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if (err) {
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dev_err(pcie->dev, "fail to register misc IRQ#%d\n",
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dev_err(dev, "fail to register misc IRQ#%d\n",
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pcie->irq_misc);
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return err;
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}
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@ -744,31 +748,32 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
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static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
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struct platform_device *pdev)
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{
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struct device_node *node = pcie->dev->of_node;
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struct device *dev = pcie->dev;
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struct device_node *node = dev->of_node;
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struct resource *res;
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const char *type;
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/* Check for device type */
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type = of_get_property(node, "device_type", NULL);
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if (!type || strcmp(type, "pci")) {
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dev_err(pcie->dev, "invalid \"device_type\" %s\n", type);
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dev_err(dev, "invalid \"device_type\" %s\n", type);
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return -EINVAL;
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}
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "breg");
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pcie->breg_base = devm_ioremap_resource(pcie->dev, res);
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pcie->breg_base = devm_ioremap_resource(dev, res);
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if (IS_ERR(pcie->breg_base))
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return PTR_ERR(pcie->breg_base);
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pcie->phys_breg_base = res->start;
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcireg");
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pcie->pcireg_base = devm_ioremap_resource(pcie->dev, res);
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pcie->pcireg_base = devm_ioremap_resource(dev, res);
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if (IS_ERR(pcie->pcireg_base))
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return PTR_ERR(pcie->pcireg_base);
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pcie->phys_pcie_reg_base = res->start;
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg");
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pcie->ecam_base = devm_ioremap_resource(pcie->dev, res);
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pcie->ecam_base = devm_ioremap_resource(dev, res);
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if (IS_ERR(pcie->ecam_base))
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return PTR_ERR(pcie->ecam_base);
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pcie->phys_ecam_base = res->start;
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@ -776,8 +781,7 @@ static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
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/* Get intx IRQ number */
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pcie->irq_intx = platform_get_irq_byname(pdev, "intx");
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if (pcie->irq_intx < 0) {
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dev_err(&pdev->dev, "failed to get intx IRQ %d\n",
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pcie->irq_intx);
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dev_err(dev, "failed to get intx IRQ %d\n", pcie->irq_intx);
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return -EINVAL;
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}
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@ -794,7 +798,8 @@ static const struct of_device_id nwl_pcie_of_match[] = {
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static int nwl_pcie_probe(struct platform_device *pdev)
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{
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struct device_node *node = pdev->dev.of_node;
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struct device *dev = &pdev->dev;
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struct device_node *node = dev->of_node;
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struct nwl_pcie *pcie;
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struct pci_bus *bus;
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struct pci_bus *child;
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@ -802,42 +807,42 @@ static int nwl_pcie_probe(struct platform_device *pdev)
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resource_size_t iobase = 0;
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LIST_HEAD(res);
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pcie = devm_kzalloc(&pdev->dev, sizeof(*pcie), GFP_KERNEL);
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pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
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if (!pcie)
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return -ENOMEM;
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pcie->dev = &pdev->dev;
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pcie->dev = dev;
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pcie->ecam_value = NWL_ECAM_VALUE_DEFAULT;
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err = nwl_pcie_parse_dt(pcie, pdev);
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if (err) {
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dev_err(pcie->dev, "Parsing DT failed\n");
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dev_err(dev, "Parsing DT failed\n");
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return err;
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}
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err = nwl_pcie_bridge_init(pcie);
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if (err) {
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dev_err(pcie->dev, "HW Initialization failed\n");
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dev_err(dev, "HW Initialization failed\n");
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return err;
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}
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err = of_pci_get_host_bridge_resources(node, 0, 0xff, &res, &iobase);
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if (err) {
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dev_err(pcie->dev, "Getting bridge resources failed\n");
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dev_err(dev, "Getting bridge resources failed\n");
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return err;
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}
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err = devm_request_pci_bus_resources(pcie->dev, &res);
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err = devm_request_pci_bus_resources(dev, &res);
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if (err)
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goto error;
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err = nwl_pcie_init_irq_domain(pcie);
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if (err) {
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dev_err(pcie->dev, "Failed creating IRQ Domain\n");
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dev_err(dev, "Failed creating IRQ Domain\n");
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goto error;
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}
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bus = pci_create_root_bus(&pdev->dev, pcie->root_busno,
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bus = pci_create_root_bus(dev, pcie->root_busno,
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&nwl_pcie_ops, pcie, &res);
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if (!bus) {
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err = -ENOMEM;
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@ -847,8 +852,7 @@ static int nwl_pcie_probe(struct platform_device *pdev)
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if (IS_ENABLED(CONFIG_PCI_MSI)) {
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err = nwl_pcie_enable_msi(pcie, bus);
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if (err < 0) {
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dev_err(&pdev->dev,
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"failed to enable MSI support: %d\n", err);
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dev_err(dev, "failed to enable MSI support: %d\n", err);
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goto error;
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}
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}
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