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PCI: keystone: Add local struct device pointers
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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>
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Bjorn Helgaas committed Oct 12, 2016
1 parent f5acb5c commit 21fa0c5
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Showing 2 changed files with 24 additions and 18 deletions.
19 changes: 11 additions & 8 deletions drivers/pci/host/pci-keystone-dw.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,7 @@ phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp)
void ks_dw_pcie_handle_msi_irq(struct keystone_pcie *ks_pcie, int offset)
{
struct pcie_port *pp = &ks_pcie->pp;
struct device *dev = pp->dev;
u32 pending, vector;
int src, virq;

Expand All @@ -104,7 +105,7 @@ void ks_dw_pcie_handle_msi_irq(struct keystone_pcie *ks_pcie, int offset)
if (BIT(src) & pending) {
vector = offset + (src << 3);
virq = irq_linear_revmap(pp->irq_domain, vector);
dev_dbg(pp->dev, "irq: bit %d, vector %d, virq %d\n",
dev_dbg(dev, "irq: bit %d, vector %d, virq %d\n",
src, vector, virq);
generic_handle_irq(virq);
}
Expand Down Expand Up @@ -215,14 +216,15 @@ static const struct irq_domain_ops ks_dw_pcie_msi_domain_ops = {
int ks_dw_pcie_msi_host_init(struct pcie_port *pp, struct msi_controller *chip)
{
struct keystone_pcie *ks_pcie = to_keystone_pcie(pp);
struct device *dev = pp->dev;
int i;

pp->irq_domain = irq_domain_add_linear(ks_pcie->msi_intc_np,
MAX_MSI_IRQS,
&ks_dw_pcie_msi_domain_ops,
chip);
if (!pp->irq_domain) {
dev_err(pp->dev, "irq domain init failed\n");
dev_err(dev, "irq domain init failed\n");
return -ENXIO;
}

Expand All @@ -243,15 +245,15 @@ void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie)
void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset)
{
struct pcie_port *pp = &ks_pcie->pp;
struct device *dev = pp->dev;
u32 pending;
int virq;

pending = readl(ks_pcie->va_app_base + IRQ_STATUS + (offset << 4));

if (BIT(0) & pending) {
virq = irq_linear_revmap(ks_pcie->legacy_irq_domain, offset);
dev_dbg(pp->dev, ": irq: irq_offset %d, virq %d\n", offset,
virq);
dev_dbg(dev, ": irq: irq_offset %d, virq %d\n", offset, virq);
generic_handle_irq(virq);
}

Expand Down Expand Up @@ -506,12 +508,13 @@ int __init ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
struct device_node *msi_intc_np)
{
struct pcie_port *pp = &ks_pcie->pp;
struct platform_device *pdev = to_platform_device(pp->dev);
struct device *dev = pp->dev;
struct platform_device *pdev = to_platform_device(dev);
struct resource *res;

/* Index 0 is the config reg. space address */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pp->dbi_base = devm_ioremap_resource(pp->dev, res);
pp->dbi_base = devm_ioremap_resource(dev, res);
if (IS_ERR(pp->dbi_base))
return PTR_ERR(pp->dbi_base);

Expand All @@ -524,7 +527,7 @@ int __init ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,

/* Index 1 is the application reg. space address */
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
ks_pcie->va_app_base = devm_ioremap_resource(pp->dev, res);
ks_pcie->va_app_base = devm_ioremap_resource(dev, res);
if (IS_ERR(ks_pcie->va_app_base))
return PTR_ERR(ks_pcie->va_app_base);

Expand All @@ -537,7 +540,7 @@ int __init ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
&ks_dw_pcie_legacy_irq_domain_ops,
NULL);
if (!ks_pcie->legacy_irq_domain) {
dev_err(pp->dev, "Failed to add irq domain for legacy irqs\n");
dev_err(dev, "Failed to add irq domain for legacy irqs\n");
return -EINVAL;
}

Expand Down
23 changes: 13 additions & 10 deletions drivers/pci/host/pci-keystone.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -89,12 +89,13 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_ANY_ID, PCI_ANY_ID, quirk_limit_mrrs);
static int ks_pcie_establish_link(struct keystone_pcie *ks_pcie)
{
struct pcie_port *pp = &ks_pcie->pp;
struct device *dev = pp->dev;
unsigned int retries;

dw_pcie_setup_rc(pp);

if (dw_pcie_link_up(pp)) {
dev_err(pp->dev, "Link already up\n");
dev_err(dev, "Link already up\n");
return 0;
}

Expand All @@ -105,7 +106,7 @@ static int ks_pcie_establish_link(struct keystone_pcie *ks_pcie)
return 0;
}

dev_err(pp->dev, "phy link never came up\n");
dev_err(dev, "phy link never came up\n");
return -ETIMEDOUT;
}

Expand All @@ -115,9 +116,10 @@ static void ks_pcie_msi_irq_handler(struct irq_desc *desc)
struct keystone_pcie *ks_pcie = irq_desc_get_handler_data(desc);
u32 offset = irq - ks_pcie->msi_host_irqs[0];
struct pcie_port *pp = &ks_pcie->pp;
struct device *dev = pp->dev;
struct irq_chip *chip = irq_desc_get_chip(desc);

dev_dbg(pp->dev, "%s, irq %d\n", __func__, irq);
dev_dbg(dev, "%s, irq %d\n", __func__, irq);

/*
* The chained irq handler installation would have replaced normal
Expand All @@ -142,10 +144,11 @@ static void ks_pcie_legacy_irq_handler(struct irq_desc *desc)
unsigned int irq = irq_desc_get_irq(desc);
struct keystone_pcie *ks_pcie = irq_desc_get_handler_data(desc);
struct pcie_port *pp = &ks_pcie->pp;
struct device *dev = pp->dev;
u32 irq_offset = irq - ks_pcie->legacy_host_irqs[0];
struct irq_chip *chip = irq_desc_get_chip(desc);

dev_dbg(pp->dev, ": Handling legacy irq %d\n", irq);
dev_dbg(dev, ": Handling legacy irq %d\n", irq);

/*
* The chained irq handler installation would have replaced normal
Expand Down Expand Up @@ -310,6 +313,7 @@ static int __init ks_add_pcie_port(struct keystone_pcie *ks_pcie,
struct platform_device *pdev)
{
struct pcie_port *pp = &ks_pcie->pp;
struct device *dev = pp->dev;
int ret;

ret = ks_pcie_get_irq_controller_info(ks_pcie,
Expand All @@ -332,12 +336,12 @@ static int __init ks_add_pcie_port(struct keystone_pcie *ks_pcie,
*/
ks_pcie->error_irq = irq_of_parse_and_map(ks_pcie->np, 0);
if (ks_pcie->error_irq <= 0)
dev_info(&pdev->dev, "no error IRQ defined\n");
dev_info(dev, "no error IRQ defined\n");
else {
ret = request_irq(ks_pcie->error_irq, pcie_err_irq_handler,
IRQF_SHARED, "pcie-error-irq", ks_pcie);
if (ret < 0) {
dev_err(&pdev->dev, "failed to request error IRQ %d\n",
dev_err(dev, "failed to request error IRQ %d\n",
ks_pcie->error_irq);
return ret;
}
Expand All @@ -347,7 +351,7 @@ static int __init ks_add_pcie_port(struct keystone_pcie *ks_pcie,
pp->ops = &keystone_pcie_host_ops;
ret = ks_dw_pcie_host_init(ks_pcie, ks_pcie->msi_intc_np);
if (ret) {
dev_err(&pdev->dev, "failed to initialize host\n");
dev_err(dev, "failed to initialize host\n");
return ret;
}

Expand Down Expand Up @@ -381,12 +385,12 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
struct phy *phy;
int ret;

ks_pcie = devm_kzalloc(&pdev->dev, sizeof(*ks_pcie),
GFP_KERNEL);
ks_pcie = devm_kzalloc(dev, sizeof(*ks_pcie), GFP_KERNEL);
if (!ks_pcie)
return -ENOMEM;

pp = &ks_pcie->pp;
pp->dev = dev;

/* initialize SerDes Phy if present */
phy = devm_phy_get(dev, "pcie-phy");
Expand All @@ -408,7 +412,6 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
devm_iounmap(dev, reg_p);
devm_release_mem_region(dev, res->start, resource_size(res));

pp->dev = dev;
ks_pcie->np = dev->of_node;
platform_set_drvdata(pdev, ks_pcie);
ks_pcie->clk = devm_clk_get(dev, "pcie");
Expand Down

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