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path: root/drivers/pci/host/pci-tegra.c
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Diffstat (limited to 'drivers/pci/host/pci-tegra.c')
-rw-r--r--drivers/pci/host/pci-tegra.c237
1 files changed, 123 insertions, 114 deletions
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index e2a8e4cab22e..8dfccf733241 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -384,6 +384,7 @@ static unsigned long tegra_pcie_conf_offset(unsigned int devfn, int where)
static struct tegra_pcie_bus *tegra_pcie_bus_alloc(struct tegra_pcie *pcie,
unsigned int busnr)
{
+ struct device *dev = pcie->dev;
pgprot_t prot = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
L_PTE_XN | L_PTE_MT_DEV_SHARED | L_PTE_SHARED);
phys_addr_t cs = pcie->cs->start;
@@ -413,8 +414,7 @@ static struct tegra_pcie_bus *tegra_pcie_bus_alloc(struct tegra_pcie *pcie,
err = ioremap_page_range(virt, virt + SZ_64K, phys, prot);
if (err < 0) {
- dev_err(pcie->dev, "ioremap_page_range() failed: %d\n",
- err);
+ dev_err(dev, "ioremap_page_range() failed: %d\n", err);
goto unmap;
}
}
@@ -462,6 +462,7 @@ static void __iomem *tegra_pcie_map_bus(struct pci_bus *bus,
int where)
{
struct tegra_pcie *pcie = sys_to_pcie(bus->sysdata);
+ struct device *dev = pcie->dev;
void __iomem *addr = NULL;
if (bus->number == 0) {
@@ -482,8 +483,7 @@ static void __iomem *tegra_pcie_map_bus(struct pci_bus *bus,
addr = (void __iomem *)b->area->addr;
if (!addr) {
- dev_err(pcie->dev,
- "failed to map cfg. space for bus %u\n",
+ dev_err(dev, "failed to map cfg. space for bus %u\n",
bus->number);
return NULL;
}
@@ -584,12 +584,13 @@ static void tegra_pcie_port_disable(struct tegra_pcie_port *port)
static void tegra_pcie_port_free(struct tegra_pcie_port *port)
{
struct tegra_pcie *pcie = port->pcie;
+ struct device *dev = pcie->dev;
- devm_iounmap(pcie->dev, port->base);
- devm_release_mem_region(pcie->dev, port->regs.start,
+ devm_iounmap(dev, port->base);
+ devm_release_mem_region(dev, port->regs.start,
resource_size(&port->regs));
list_del(&port->list);
- devm_kfree(pcie->dev, port);
+ devm_kfree(dev, port);
}
/* Tegra PCIE root complex wrongly reports device class */
@@ -612,12 +613,13 @@ DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, tegra_pcie_relax_enable);
static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
{
struct tegra_pcie *pcie = sys_to_pcie(sys);
+ struct device *dev = pcie->dev;
int err;
sys->mem_offset = pcie->offset.mem;
sys->io_offset = pcie->offset.io;
- err = devm_request_resource(pcie->dev, &iomem_resource, &pcie->io);
+ err = devm_request_resource(dev, &iomem_resource, &pcie->io);
if (err < 0)
return err;
@@ -631,7 +633,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
sys->mem_offset);
pci_add_resource(&sys->resources, &pcie->busn);
- err = devm_request_pci_bus_resources(pcie->dev, &sys->resources);
+ err = devm_request_pci_bus_resources(dev, &sys->resources);
if (err < 0)
return err;
@@ -672,6 +674,7 @@ static irqreturn_t tegra_pcie_isr(int irq, void *arg)
"Peer2Peer error",
};
struct tegra_pcie *pcie = arg;
+ struct device *dev = pcie->dev;
u32 code, signature;
code = afi_readl(pcie, AFI_INTR_CODE) & AFI_INTR_CODE_MASK;
@@ -689,11 +692,9 @@ static irqreturn_t tegra_pcie_isr(int irq, void *arg)
* happen a lot during enumeration
*/
if (code == AFI_INTR_MASTER_ABORT)
- dev_dbg(pcie->dev, "%s, signature: %08x\n", err_msg[code],
- signature);
+ dev_dbg(dev, "%s, signature: %08x\n", err_msg[code], signature);
else
- dev_err(pcie->dev, "%s, signature: %08x\n", err_msg[code],
- signature);
+ dev_err(dev, "%s, signature: %08x\n", err_msg[code], signature);
if (code == AFI_INTR_TARGET_ABORT || code == AFI_INTR_MASTER_ABORT ||
code == AFI_INTR_FPCI_DECODE_ERROR) {
@@ -701,9 +702,9 @@ static irqreturn_t tegra_pcie_isr(int irq, void *arg)
u64 address = (u64)fpci << 32 | (signature & 0xfffffffc);
if (code == AFI_INTR_MASTER_ABORT)
- dev_dbg(pcie->dev, " FPCI address: %10llx\n", address);
+ dev_dbg(dev, " FPCI address: %10llx\n", address);
else
- dev_err(pcie->dev, " FPCI address: %10llx\n", address);
+ dev_err(dev, " FPCI address: %10llx\n", address);
}
return IRQ_HANDLED;
@@ -793,6 +794,7 @@ static int tegra_pcie_pll_wait(struct tegra_pcie *pcie, unsigned long timeout)
static int tegra_pcie_phy_enable(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
const struct tegra_pcie_soc *soc = pcie->soc;
u32 value;
int err;
@@ -829,7 +831,7 @@ static int tegra_pcie_phy_enable(struct tegra_pcie *pcie)
/* wait for the PLL to lock */
err = tegra_pcie_pll_wait(pcie, 500);
if (err < 0) {
- dev_err(pcie->dev, "PLL failed to lock: %d\n", err);
+ dev_err(dev, "PLL failed to lock: %d\n", err);
return err;
}
@@ -859,7 +861,7 @@ static int tegra_pcie_phy_disable(struct tegra_pcie *pcie)
/* override IDDQ */
value = pads_readl(pcie, PADS_CTL);
value |= PADS_CTL_IDDQ_1L;
- pads_writel(pcie, PADS_CTL, value);
+ pads_writel(pcie, value, PADS_CTL);
/* reset PLL */
value = pads_readl(pcie, soc->pads_pll_ctl);
@@ -880,8 +882,7 @@ static int tegra_pcie_port_phy_power_on(struct tegra_pcie_port *port)
for (i = 0; i < port->lanes; i++) {
err = phy_power_on(port->phys[i]);
if (err < 0) {
- dev_err(dev, "failed to power on PHY#%u: %d\n", i,
- err);
+ dev_err(dev, "failed to power on PHY#%u: %d\n", i, err);
return err;
}
}
@@ -909,6 +910,7 @@ static int tegra_pcie_port_phy_power_off(struct tegra_pcie_port *port)
static int tegra_pcie_phy_power_on(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
const struct tegra_pcie_soc *soc = pcie->soc;
struct tegra_pcie_port *port;
int err;
@@ -920,7 +922,7 @@ static int tegra_pcie_phy_power_on(struct tegra_pcie *pcie)
err = tegra_pcie_phy_enable(pcie);
if (err < 0)
- dev_err(pcie->dev, "failed to power on PHY: %d\n", err);
+ dev_err(dev, "failed to power on PHY: %d\n", err);
return err;
}
@@ -928,7 +930,7 @@ static int tegra_pcie_phy_power_on(struct tegra_pcie *pcie)
list_for_each_entry(port, &pcie->ports, list) {
err = tegra_pcie_port_phy_power_on(port);
if (err < 0) {
- dev_err(pcie->dev,
+ dev_err(dev,
"failed to power on PCIe port %u PHY: %d\n",
port->index, err);
return err;
@@ -946,6 +948,7 @@ static int tegra_pcie_phy_power_on(struct tegra_pcie *pcie)
static int tegra_pcie_phy_power_off(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
struct tegra_pcie_port *port;
int err;
@@ -956,8 +959,7 @@ static int tegra_pcie_phy_power_off(struct tegra_pcie *pcie)
err = tegra_pcie_phy_disable(pcie);
if (err < 0)
- dev_err(pcie->dev, "failed to power off PHY: %d\n",
- err);
+ dev_err(dev, "failed to power off PHY: %d\n", err);
return err;
}
@@ -965,7 +967,7 @@ static int tegra_pcie_phy_power_off(struct tegra_pcie *pcie)
list_for_each_entry(port, &pcie->ports, list) {
err = tegra_pcie_port_phy_power_off(port);
if (err < 0) {
- dev_err(pcie->dev,
+ dev_err(dev,
"failed to power off PCIe port %u PHY: %d\n",
port->index, err);
return err;
@@ -977,6 +979,7 @@ static int tegra_pcie_phy_power_off(struct tegra_pcie *pcie)
static int tegra_pcie_enable_controller(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
const struct tegra_pcie_soc *soc = pcie->soc;
struct tegra_pcie_port *port;
unsigned long value;
@@ -1016,7 +1019,7 @@ static int tegra_pcie_enable_controller(struct tegra_pcie *pcie)
err = tegra_pcie_phy_power_on(pcie);
if (err < 0) {
- dev_err(pcie->dev, "failed to power on PHY(s): %d\n", err);
+ dev_err(dev, "failed to power on PHY(s): %d\n", err);
return err;
}
@@ -1049,13 +1052,14 @@ static int tegra_pcie_enable_controller(struct tegra_pcie *pcie)
static void tegra_pcie_power_off(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
int err;
/* TODO: disable and unprepare clocks? */
err = tegra_pcie_phy_power_off(pcie);
if (err < 0)
- dev_err(pcie->dev, "failed to power off PHY(s): %d\n", err);
+ dev_err(dev, "failed to power off PHY(s): %d\n", err);
reset_control_assert(pcie->pcie_xrst);
reset_control_assert(pcie->afi_rst);
@@ -1065,11 +1069,12 @@ static void tegra_pcie_power_off(struct tegra_pcie *pcie)
err = regulator_bulk_disable(pcie->num_supplies, pcie->supplies);
if (err < 0)
- dev_warn(pcie->dev, "failed to disable regulators: %d\n", err);
+ dev_warn(dev, "failed to disable regulators: %d\n", err);
}
static int tegra_pcie_power_on(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
const struct tegra_pcie_soc *soc = pcie->soc;
int err;
@@ -1082,13 +1087,13 @@ static int tegra_pcie_power_on(struct tegra_pcie *pcie)
/* enable regulators */
err = regulator_bulk_enable(pcie->num_supplies, pcie->supplies);
if (err < 0)
- dev_err(pcie->dev, "failed to enable regulators: %d\n", err);
+ dev_err(dev, "failed to enable regulators: %d\n", err);
err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_PCIE,
pcie->pex_clk,
pcie->pex_rst);
if (err) {
- dev_err(pcie->dev, "powerup sequence failed: %d\n", err);
+ dev_err(dev, "powerup sequence failed: %d\n", err);
return err;
}
@@ -1096,22 +1101,21 @@ static int tegra_pcie_power_on(struct tegra_pcie *pcie)
err = clk_prepare_enable(pcie->afi_clk);
if (err < 0) {
- dev_err(pcie->dev, "failed to enable AFI clock: %d\n", err);
+ dev_err(dev, "failed to enable AFI clock: %d\n", err);
return err;
}
if (soc->has_cml_clk) {
err = clk_prepare_enable(pcie->cml_clk);
if (err < 0) {
- dev_err(pcie->dev, "failed to enable CML clock: %d\n",
- err);
+ dev_err(dev, "failed to enable CML clock: %d\n", err);
return err;
}
}
err = clk_prepare_enable(pcie->pll_e);
if (err < 0) {
- dev_err(pcie->dev, "failed to enable PLLE clock: %d\n", err);
+ dev_err(dev, "failed to enable PLLE clock: %d\n", err);
return err;
}
@@ -1120,22 +1124,23 @@ static int tegra_pcie_power_on(struct tegra_pcie *pcie)
static int tegra_pcie_clocks_get(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
const struct tegra_pcie_soc *soc = pcie->soc;
- pcie->pex_clk = devm_clk_get(pcie->dev, "pex");
+ pcie->pex_clk = devm_clk_get(dev, "pex");
if (IS_ERR(pcie->pex_clk))
return PTR_ERR(pcie->pex_clk);
- pcie->afi_clk = devm_clk_get(pcie->dev, "afi");
+ pcie->afi_clk = devm_clk_get(dev, "afi");
if (IS_ERR(pcie->afi_clk))
return PTR_ERR(pcie->afi_clk);
- pcie->pll_e = devm_clk_get(pcie->dev, "pll_e");
+ pcie->pll_e = devm_clk_get(dev, "pll_e");
if (IS_ERR(pcie->pll_e))
return PTR_ERR(pcie->pll_e);
if (soc->has_cml_clk) {
- pcie->cml_clk = devm_clk_get(pcie->dev, "cml");
+ pcie->cml_clk = devm_clk_get(dev, "cml");
if (IS_ERR(pcie->cml_clk))
return PTR_ERR(pcie->cml_clk);
}
@@ -1145,15 +1150,17 @@ static int tegra_pcie_clocks_get(struct tegra_pcie *pcie)
static int tegra_pcie_resets_get(struct tegra_pcie *pcie)
{
- pcie->pex_rst = devm_reset_control_get(pcie->dev, "pex");
+ struct device *dev = pcie->dev;
+
+ pcie->pex_rst = devm_reset_control_get(dev, "pex");
if (IS_ERR(pcie->pex_rst))
return PTR_ERR(pcie->pex_rst);
- pcie->afi_rst = devm_reset_control_get(pcie->dev, "afi");
+ pcie->afi_rst = devm_reset_control_get(dev, "afi");
if (IS_ERR(pcie->afi_rst))
return PTR_ERR(pcie->afi_rst);
- pcie->pcie_xrst = devm_reset_control_get(pcie->dev, "pcie_x");
+ pcie->pcie_xrst = devm_reset_control_get(dev, "pcie_x");
if (IS_ERR(pcie->pcie_xrst))
return PTR_ERR(pcie->pcie_xrst);
@@ -1162,18 +1169,19 @@ static int tegra_pcie_resets_get(struct tegra_pcie *pcie)
static int tegra_pcie_phys_get_legacy(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
int err;
- pcie->phy = devm_phy_optional_get(pcie->dev, "pcie");
+ pcie->phy = devm_phy_optional_get(dev, "pcie");
if (IS_ERR(pcie->phy)) {
err = PTR_ERR(pcie->phy);
- dev_err(pcie->dev, "failed to get PHY: %d\n", err);
+ dev_err(dev, "failed to get PHY: %d\n", err);
return err;
}
err = phy_init(pcie->phy);
if (err < 0) {
- dev_err(pcie->dev, "failed to initialize PHY: %d\n", err);
+ dev_err(dev, "failed to initialize PHY: %d\n", err);
return err;
}
@@ -1256,43 +1264,44 @@ static int tegra_pcie_phys_get(struct tegra_pcie *pcie)
static int tegra_pcie_get_resources(struct tegra_pcie *pcie)
{
- struct platform_device *pdev = to_platform_device(pcie->dev);
+ struct device *dev = pcie->dev;
+ struct platform_device *pdev = to_platform_device(dev);
struct resource *pads, *afi, *res;
int err;
err = tegra_pcie_clocks_get(pcie);
if (err) {
- dev_err(&pdev->dev, "failed to get clocks: %d\n", err);
+ dev_err(dev, "failed to get clocks: %d\n", err);
return err;
}
err = tegra_pcie_resets_get(pcie);
if (err) {
- dev_err(&pdev->dev, "failed to get resets: %d\n", err);
+ dev_err(dev, "failed to get resets: %d\n", err);
return err;
}
err = tegra_pcie_phys_get(pcie);
if (err < 0) {
- dev_err(&pdev->dev, "failed to get PHYs: %d\n", err);
+ dev_err(dev, "failed to get PHYs: %d\n", err);
return err;
}
err = tegra_pcie_power_on(pcie);
if (err) {
- dev_err(&pdev->dev, "failed to power up: %d\n", err);
+ dev_err(dev, "failed to power up: %d\n", err);
return err;
}
pads = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pads");
- pcie->pads = devm_ioremap_resource(&pdev->dev, pads);
+ pcie->pads = devm_ioremap_resource(dev, pads);
if (IS_ERR(pcie->pads)) {
err = PTR_ERR(pcie->pads);
goto poweroff;
}
afi = platform_get_resource_byname(pdev, IORESOURCE_MEM, "afi");
- pcie->afi = devm_ioremap_resource(&pdev->dev, afi);
+ pcie->afi = devm_ioremap_resource(dev, afi);
if (IS_ERR(pcie->afi)) {
err = PTR_ERR(pcie->afi);
goto poweroff;
@@ -1305,7 +1314,7 @@ static int tegra_pcie_get_resources(struct tegra_pcie *pcie)
goto poweroff;
}
- pcie->cs = devm_request_mem_region(pcie->dev, res->start,
+ pcie->cs = devm_request_mem_region(dev, res->start,
resource_size(res), res->name);
if (!pcie->cs) {
err = -EADDRNOTAVAIL;
@@ -1315,7 +1324,7 @@ static int tegra_pcie_get_resources(struct tegra_pcie *pcie)
/* request interrupt */
err = platform_get_irq_byname(pdev, "intr");
if (err < 0) {
- dev_err(&pdev->dev, "failed to get IRQ: %d\n", err);
+ dev_err(dev, "failed to get IRQ: %d\n", err);
goto poweroff;
}
@@ -1323,7 +1332,7 @@ static int tegra_pcie_get_resources(struct tegra_pcie *pcie)
err = request_irq(pcie->irq, tegra_pcie_isr, IRQF_SHARED, "PCIE", pcie);
if (err) {
- dev_err(&pdev->dev, "failed to register IRQ: %d\n", err);
+ dev_err(dev, "failed to register IRQ: %d\n", err);
goto poweroff;
}
@@ -1336,6 +1345,7 @@ poweroff:
static int tegra_pcie_put_resources(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
int err;
if (pcie->irq > 0)
@@ -1345,7 +1355,7 @@ static int tegra_pcie_put_resources(struct tegra_pcie *pcie)
err = phy_exit(pcie->phy);
if (err < 0)
- dev_err(pcie->dev, "failed to teardown PHY: %d\n", err);
+ dev_err(dev, "failed to teardown PHY: %d\n", err);
return 0;
}
@@ -1384,6 +1394,7 @@ static void tegra_msi_free(struct tegra_msi *chip, unsigned long irq)
static irqreturn_t tegra_pcie_msi_irq(int irq, void *data)
{
struct tegra_pcie *pcie = data;
+ struct device *dev = pcie->dev;
struct tegra_msi *msi = &pcie->msi;
unsigned int i, processed = 0;
@@ -1403,13 +1414,13 @@ static irqreturn_t tegra_pcie_msi_irq(int irq, void *data)
if (test_bit(index, msi->used))
generic_handle_irq(irq);
else
- dev_info(pcie->dev, "unhandled MSI\n");
+ dev_info(dev, "unhandled MSI\n");
} else {
/*
* that's weird who triggered this?
* just clear it
*/
- dev_info(pcie->dev, "unexpected MSI\n");
+ dev_info(dev, "unexpected MSI\n");
}
/* see if there's any more pending in this vector */
@@ -1488,7 +1499,8 @@ static const struct irq_domain_ops msi_domain_ops = {
static int tegra_pcie_enable_msi(struct tegra_pcie *pcie)
{
- struct platform_device *pdev = to_platform_device(pcie->dev);
+ struct device *dev = pcie->dev;
+ struct platform_device *pdev = to_platform_device(dev);
const struct tegra_pcie_soc *soc = pcie->soc;
struct tegra_msi *msi = &pcie->msi;
unsigned long base;
@@ -1497,20 +1509,20 @@ static int tegra_pcie_enable_msi(struct tegra_pcie *pcie)
mutex_init(&msi->lock);
- msi->chip.dev = pcie->dev;
+ msi->chip.dev = dev;
msi->chip.setup_irq = tegra_msi_setup_irq;
msi->chip.teardown_irq = tegra_msi_teardown_irq;
- msi->domain = irq_domain_add_linear(pcie->dev->of_node, INT_PCI_MSI_NR,
+ msi->domain = irq_domain_add_linear(dev->of_node, INT_PCI_MSI_NR,
&msi_domain_ops, &msi->chip);
if (!msi->domain) {
- dev_err(&pdev->dev, "failed to create IRQ domain\n");
+ dev_err(dev, "failed to create IRQ domain\n");
return -ENOMEM;
}
err = platform_get_irq_byname(pdev, "msi");
if (err < 0) {
- dev_err(&pdev->dev, "failed to get IRQ: %d\n", err);
+ dev_err(dev, "failed to get IRQ: %d\n", err);
goto err;
}
@@ -1519,7 +1531,7 @@ static int tegra_pcie_enable_msi(struct tegra_pcie *pcie)
err = request_irq(msi->irq, tegra_pcie_msi_irq, IRQF_NO_THREAD,
tegra_msi_irq_chip.name, pcie);
if (err < 0) {
- dev_err(&pdev->dev, "failed to request IRQ: %d\n", err);
+ dev_err(dev, "failed to request IRQ: %d\n", err);
goto err;
}
@@ -1594,46 +1606,47 @@ static int tegra_pcie_disable_msi(struct tegra_pcie *pcie)
static int tegra_pcie_get_xbar_config(struct tegra_pcie *pcie, u32 lanes,
u32 *xbar)
{
- struct device_node *np = pcie->dev->of_node;
+ struct device *dev = pcie->dev;
+ struct device_node *np = dev->of_node;
if (of_device_is_compatible(np, "nvidia,tegra124-pcie")) {
switch (lanes) {
case 0x0000104:
- dev_info(pcie->dev, "4x1, 1x1 configuration\n");
+ dev_info(dev, "4x1, 1x1 configuration\n");
*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_X4_X1;
return 0;
case 0x0000102:
- dev_info(pcie->dev, "2x1, 1x1 configuration\n");
+ dev_info(dev, "2x1, 1x1 configuration\n");
*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_X2_X1;
return 0;
}
} else if (of_device_is_compatible(np, "nvidia,tegra30-pcie")) {
switch (lanes) {
case 0x00000204:
- dev_info(pcie->dev, "4x1, 2x1 configuration\n");
+ dev_info(dev, "4x1, 2x1 configuration\n");
*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_420;
return 0;
case 0x00020202:
- dev_info(pcie->dev, "2x3 configuration\n");
+ dev_info(dev, "2x3 configuration\n");
*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_222;
return 0;
case 0x00010104:
- dev_info(pcie->dev, "4x1, 1x2 configuration\n");
+ dev_info(dev, "4x1, 1x2 configuration\n");
*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_411;
return 0;
}
} else if (of_device_is_compatible(np, "nvidia,tegra20-pcie")) {
switch (lanes) {
case 0x00000004:
- dev_info(pcie->dev, "single-mode configuration\n");
+ dev_info(dev, "single-mode configuration\n");
*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_SINGLE;
return 0;
case 0x00000202:
- dev_info(pcie->dev, "dual-mode configuration\n");
+ dev_info(dev, "dual-mode configuration\n");
*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_DUAL;
return 0;
}
@@ -1673,7 +1686,8 @@ static bool of_regulator_bulk_available(struct device_node *np,
*/
static int tegra_pcie_get_legacy_regulators(struct tegra_pcie *pcie)
{
- struct device_node *np = pcie->dev->of_node;
+ struct device *dev = pcie->dev;
+ struct device_node *np = dev->of_node;
if (of_device_is_compatible(np, "nvidia,tegra30-pcie"))
pcie->num_supplies = 3;
@@ -1681,12 +1695,12 @@ static int tegra_pcie_get_legacy_regulators(struct tegra_pcie *pcie)
pcie->num_supplies = 2;
if (pcie->num_supplies == 0) {
- dev_err(pcie->dev, "device %s not supported in legacy mode\n",
+ dev_err(dev, "device %s not supported in legacy mode\n",
np->full_name);
return -ENODEV;
}
- pcie->supplies = devm_kcalloc(pcie->dev, pcie->num_supplies,
+ pcie->supplies = devm_kcalloc(dev, pcie->num_supplies,
sizeof(*pcie->supplies),
GFP_KERNEL);
if (!pcie->supplies)
@@ -1698,8 +1712,7 @@ static int tegra_pcie_get_legacy_regulators(struct tegra_pcie *pcie)
if (pcie->num_supplies > 2)
pcie->supplies[2].supply = "avdd";
- return devm_regulator_bulk_get(pcie->dev, pcie->num_supplies,
- pcie->supplies);
+ return devm_regulator_bulk_get(dev, pcie->num_supplies, pcie->supplies);
}
/*
@@ -1713,13 +1726,14 @@ static int tegra_pcie_get_legacy_regulators(struct tegra_pcie *pcie)
*/
static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask)
{
- struct device_node *np = pcie->dev->of_node;
+ struct device *dev = pcie->dev;
+ struct device_node *np = dev->of_node;
unsigned int i = 0;
if (of_device_is_compatible(np, "nvidia,tegra124-pcie")) {
pcie->num_supplies = 7;
- pcie->supplies = devm_kcalloc(pcie->dev, pcie->num_supplies,
+ pcie->supplies = devm_kcalloc(dev, pcie->num_supplies,
sizeof(*pcie->supplies),
GFP_KERNEL);
if (!pcie->supplies)
@@ -1746,7 +1760,7 @@ static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask)
pcie->num_supplies = 4 + (need_pexa ? 2 : 0) +
(need_pexb ? 2 : 0);
- pcie->supplies = devm_kcalloc(pcie->dev, pcie->num_supplies,
+ pcie->supplies = devm_kcalloc(dev, pcie->num_supplies,
sizeof(*pcie->supplies),
GFP_KERNEL);
if (!pcie->supplies)
@@ -1769,7 +1783,7 @@ static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask)
} else if (of_device_is_compatible(np, "nvidia,tegra20-pcie")) {
pcie->num_supplies = 5;
- pcie->supplies = devm_kcalloc(pcie->dev, pcie->num_supplies,
+ pcie->supplies = devm_kcalloc(dev, pcie->num_supplies,
sizeof(*pcie->supplies),
GFP_KERNEL);
if (!pcie->supplies)
@@ -1782,9 +1796,9 @@ static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask)
pcie->supplies[4].supply = "vddio-pex-clk";
}
- if (of_regulator_bulk_available(pcie->dev->of_node, pcie->supplies,
+ if (of_regulator_bulk_available(dev->of_node, pcie->supplies,
pcie->num_supplies))
- return devm_regulator_bulk_get(pcie->dev, pcie->num_supplies,
+ return devm_regulator_bulk_get(dev, pcie->num_supplies,
pcie->supplies);
/*
@@ -1792,9 +1806,9 @@ static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask)
* that the device tree complies with an older version of the device
* tree binding.
*/
- dev_info(pcie->dev, "using legacy DT binding for power supplies\n");
+ dev_info(dev, "using legacy DT binding for power supplies\n");
- devm_kfree(pcie->dev, pcie->supplies);
+ devm_kfree(dev, pcie->supplies);
pcie->num_supplies = 0;
return tegra_pcie_get_legacy_regulators(pcie);
@@ -1802,7 +1816,8 @@ static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask)
static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
{
- struct device_node *np = pcie->dev->of_node, *port;
+ struct device *dev = pcie->dev;
+ struct device_node *np = dev->of_node, *port;
const struct tegra_pcie_soc *soc = pcie->soc;
struct of_pci_range_parser parser;
struct of_pci_range range;
@@ -1812,7 +1827,7 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
int err;
if (of_pci_range_parser_init(&parser, np)) {
- dev_err(pcie->dev, "missing \"ranges\" property\n");
+ dev_err(dev, "missing \"ranges\" property\n");
return -EINVAL;
}
@@ -1867,8 +1882,7 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
err = of_pci_parse_bus_range(np, &pcie->busn);
if (err < 0) {
- dev_err(pcie->dev, "failed to parse ranges property: %d\n",
- err);
+ dev_err(dev, "failed to parse ranges property: %d\n", err);
pcie->busn.name = np->name;
pcie->busn.start = 0;
pcie->busn.end = 0xff;
@@ -1883,15 +1897,14 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
err = of_pci_get_devfn(port);
if (err < 0) {
- dev_err(pcie->dev, "failed to parse address: %d\n",
- err);
+ dev_err(dev, "failed to parse address: %d\n", err);
return err;
}
index = PCI_SLOT(err);
if (index < 1 || index > soc->num_ports) {
- dev_err(pcie->dev, "invalid port number: %d\n", index);
+ dev_err(dev, "invalid port number: %d\n", index);
return -EINVAL;
}
@@ -1899,13 +1912,13 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
err = of_property_read_u32(port, "nvidia,num-lanes", &value);
if (err < 0) {
- dev_err(pcie->dev, "failed to parse # of lanes: %d\n",
+ dev_err(dev, "failed to parse # of lanes: %d\n",
err);
return err;
}
if (value > 16) {
- dev_err(pcie->dev, "invalid # of lanes: %u\n", value);
+ dev_err(dev, "invalid # of lanes: %u\n", value);
return -EINVAL;
}
@@ -1919,14 +1932,13 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
mask |= ((1 << value) - 1) << lane;
lane += value;
- rp = devm_kzalloc(pcie->dev, sizeof(*rp), GFP_KERNEL);
+ rp = devm_kzalloc(dev, sizeof(*rp), GFP_KERNEL);
if (!rp)
return -ENOMEM;
err = of_address_to_resource(port, 0, &rp->regs);
if (err < 0) {
- dev_err(pcie->dev, "failed to parse address: %d\n",
- err);
+ dev_err(dev, "failed to parse address: %d\n", err);
return err;
}
@@ -1936,7 +1948,7 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
rp->pcie = pcie;
rp->np = port;
- rp->base = devm_ioremap_resource(pcie->dev, &rp->regs);
+ rp->base = devm_ioremap_resource(dev, &rp->regs);
if (IS_ERR(rp->base))
return PTR_ERR(rp->base);
@@ -1945,7 +1957,7 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
err = tegra_pcie_get_xbar_config(pcie, lanes, &pcie->xbar_config);
if (err < 0) {
- dev_err(pcie->dev, "invalid lane configuration\n");
+ dev_err(dev, "invalid lane configuration\n");
return err;
}
@@ -1964,6 +1976,7 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
#define TEGRA_PCIE_LINKUP_TIMEOUT 200 /* up to 1.2 seconds */
static bool tegra_pcie_port_check_link(struct tegra_pcie_port *port)
{
+ struct device *dev = port->pcie->dev;
unsigned int retries = 3;
unsigned long value;
@@ -1986,8 +1999,7 @@ static bool tegra_pcie_port_check_link(struct tegra_pcie_port *port)
} while (--timeout);
if (!timeout) {
- dev_err(port->pcie->dev, "link %u down, retrying\n",
- port->index);
+ dev_err(dev, "link %u down, retrying\n", port->index);
goto retry;
}
@@ -2011,11 +2023,12 @@ retry:
static int tegra_pcie_enable(struct tegra_pcie *pcie)
{
+ struct device *dev = pcie->dev;
struct tegra_pcie_port *port, *tmp;
struct hw_pci hw;
list_for_each_entry_safe(port, tmp, &pcie->ports, list) {
- dev_info(pcie->dev, "probing port %u, using %u lanes\n",
+ dev_info(dev, "probing port %u, using %u lanes\n",
port->index, port->lanes);
tegra_pcie_port_enable(port);
@@ -2023,7 +2036,7 @@ static int tegra_pcie_enable(struct tegra_pcie *pcie)
if (tegra_pcie_port_check_link(port))
continue;
- dev_info(pcie->dev, "link %u down, ignoring\n", port->index);
+ dev_info(dev, "link %u down, ignoring\n", port->index);
tegra_pcie_port_disable(port);
tegra_pcie_port_free(port);
@@ -2041,8 +2054,7 @@ static int tegra_pcie_enable(struct tegra_pcie *pcie)
hw.map_irq = tegra_pcie_map_irq;
hw.ops = &tegra_pcie_ops;
- pci_common_init_dev(pcie->dev, &hw);
-
+ pci_common_init_dev(dev, &hw);
return 0;
}
@@ -2204,17 +2216,18 @@ remove:
static int tegra_pcie_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct tegra_pcie *pcie;
int err;
- pcie = devm_kzalloc(&pdev->dev, sizeof(*pcie), GFP_KERNEL);
+ pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
if (!pcie)
return -ENOMEM;
- pcie->soc = of_device_get_match_data(&pdev->dev);
+ pcie->soc = of_device_get_match_data(dev);
INIT_LIST_HEAD(&pcie->buses);
INIT_LIST_HEAD(&pcie->ports);
- pcie->dev = &pdev->dev;
+ pcie->dev = dev;
err = tegra_pcie_parse_dt(pcie);
if (err < 0)
@@ -2222,7 +2235,7 @@ static int tegra_pcie_probe(struct platform_device *pdev)
err = tegra_pcie_get_resources(pcie);
if (err < 0) {
- dev_err(&pdev->dev, "failed to request resources: %d\n", err);
+ dev_err(dev, "failed to request resources: %d\n", err);
return err;
}
@@ -2236,27 +2249,23 @@ static int tegra_pcie_probe(struct platform_device *pdev)
if (IS_ENABLED(CONFIG_PCI_MSI)) {
err = tegra_pcie_enable_msi(pcie);
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 put_resources;
}
}
err = tegra_pcie_enable(pcie);
if (err < 0) {
- dev_err(&pdev->dev, "failed to enable PCIe ports: %d\n", err);
+ dev_err(dev, "failed to enable PCIe ports: %d\n", err);
goto disable_msi;
}
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_pcie_debugfs_init(pcie);
if (err < 0)
- dev_err(&pdev->dev, "failed to setup debugfs: %d\n",
- err);
+ dev_err(dev, "failed to setup debugfs: %d\n", err);
}
- platform_set_drvdata(pdev, pcie);
return 0;
disable_msi:
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 12:04:54 +0000