PCI: armada: Pass device-specific struct to internal functions

Only interfaces used from outside the driver, e.g., those called by the
DesignWare core, need to accept pointers to the generic struct pcie_port.
Internal interfaces can accept pointers to the device-specific struct,
which makes them more straightforward.  No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/drivers/pci/host/pcie-armada8k.c b/drivers/pci/host/pcie-armada8k.c
index a5faa02..63297ed 100644 (file)
--- a/drivers/pci/host/pcie-armada8k.c
+++ b/drivers/pci/host/pcie-armada8k.c
@@ -83,8 +83,9 @@ static int armada8k_pcie_link_up(struct pcie_port *pp)
        return 0;
 }
 
-static void armada8k_pcie_establish_link(struct pcie_port *pp)
+static void armada8k_pcie_establish_link(struct armada8k_pcie *pcie)
 {
+       struct pcie_port *pp = &pcie->pp;
        u32 reg;
 
        if (!dw_pcie_link_up(pp)) {
@@ -135,13 +136,16 @@ static void armada8k_pcie_establish_link(struct pcie_port *pp)
 
 static void armada8k_pcie_host_init(struct pcie_port *pp)
 {
+       struct armada8k_pcie *pcie = to_armada8k_pcie(pp);
+
        dw_pcie_setup_rc(pp);
-       armada8k_pcie_establish_link(pp);
+       armada8k_pcie_establish_link(pcie);
 }
 
 static irqreturn_t armada8k_pcie_irq_handler(int irq, void *arg)
 {
-       struct pcie_port *pp = arg;
+       struct armada8k_pcie *pcie = arg;
+       struct pcie_port *pp = &pcie->pp;
        u32 val;
 
        /*
@@ -160,9 +164,10 @@ static struct pcie_host_ops armada8k_pcie_host_ops = {
        .host_init = armada8k_pcie_host_init,
 };
 
-static int armada8k_add_pcie_port(struct pcie_port *pp,
+static int armada8k_add_pcie_port(struct armada8k_pcie *pcie,
                                  struct platform_device *pdev)
 {
+       struct pcie_port *pp = &pcie->pp;
        struct device *dev = &pdev->dev;
        int ret;
 
@@ -176,7 +181,7 @@ static int armada8k_add_pcie_port(struct pcie_port *pp,
        }
 
        ret = devm_request_irq(dev, pp->irq, armada8k_pcie_irq_handler,
-                              IRQF_SHARED, "armada8k-pcie", pp);
+                              IRQF_SHARED, "armada8k-pcie", pcie);
        if (ret) {
                dev_err(dev, "failed to request irq %d\n", pp->irq);
                return ret;
@@ -221,7 +226,7 @@ static int armada8k_pcie_probe(struct platform_device *pdev)
                goto fail;
        }
 
-       ret = armada8k_add_pcie_port(pp, pdev);
+       ret = armada8k_add_pcie_port(pcie, pdev);
        if (ret)
                goto fail;