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usb: dwc3: pci: add a private driver structure

Browse source 
We'll be tracking a little more information for PCI
drivers, it's about time we add a private structure
for that.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2016-10-24 10:29:01 +03:00
parent ff377ae47d
commit 0f817ae696
1 changed files with 34 additions and 15 deletions
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49
drivers/usb/dwc3/dwc3-pci.c
View file

@ -39,6 +39,16 @@
#define PCI_DEVICE_ID_INTEL_APL 0x5aaa
#define PCI_DEVICE_ID_INTEL_KBP 0xa2b0
/**
* struct dwc3_pci - Driver private structure
* @dwc3: child dwc3 platform_device
* @pci: our link to PCI bus
*/
struct dwc3_pci {
struct platform_device *dwc3;
struct pci_dev *pci;
};
static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
static const struct acpi_gpio_params cs_gpios = { 1, 0, false };
@ -48,8 +58,11 @@ static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = {
{ },
};
static int dwc3_pci_quirks(struct pci_dev *pdev, struct platform_device *dwc3)
static int dwc3_pci_quirks(struct dwc3_pci *dwc)
{
struct platform_device *dwc3 = dwc->dwc3;
struct pci_dev *pdev = dwc->pci;
if (pdev->vendor == PCI_VENDOR_ID_AMD &&
pdev->device == PCI_DEVICE_ID_AMD_NL_USB) {
struct property_entry properties[] = {
@ -139,8 +152,8 @@ static int dwc3_pci_quirks(struct pci_dev *pdev, struct platform_device *dwc3)
static int dwc3_pci_probe(struct pci_dev *pci,
const struct pci_device_id *id)
{
struct dwc3_pci *dwc;
struct resource res[2];
struct platform_device *dwc3;
int ret;
struct device *dev = &pci->dev;
@ -152,11 +165,13 @@ static int dwc3_pci_probe(struct pci_dev *pci,
pci_set_master(pci);
dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
if (!dwc3) {
dev_err(dev, "couldn't allocate dwc3 device\n");
dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
if (!dwc)
return -ENOMEM;
dwc->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
if (!dwc->dwc3)
return -ENOMEM;
}
memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
@ -169,20 +184,21 @@ static int dwc3_pci_probe(struct pci_dev *pci,
res[1].name = "dwc_usb3";
res[1].flags = IORESOURCE_IRQ;
ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
ret = platform_device_add_resources(dwc->dwc3, res, ARRAY_SIZE(res));
if (ret) {
dev_err(dev, "couldn't add resources to dwc3 device\n");
return ret;
}
dwc3->dev.parent = dev;
ACPI_COMPANION_SET(&dwc3->dev, ACPI_COMPANION(dev));
dwc->pci = pci;
dwc->dwc3->dev.parent = dev;
ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev));
ret = dwc3_pci_quirks(pci, dwc3);
ret = dwc3_pci_quirks(dwc);
if (ret)
goto err;
ret = platform_device_add(dwc3);
ret = platform_device_add(dwc->dwc3);
if (ret) {
dev_err(dev, "failed to register dwc3 device\n");
goto err;
@ -190,21 +206,23 @@ static int dwc3_pci_probe(struct pci_dev *pci,
device_init_wakeup(dev, true);
device_set_run_wake(dev, true);
pci_set_drvdata(pci, dwc3);
pci_set_drvdata(pci, dwc);
pm_runtime_put(dev);
return 0;
err:
platform_device_put(dwc3);
platform_device_put(dwc->dwc3);
return ret;
}
static void dwc3_pci_remove(struct pci_dev *pci)
{
struct dwc3_pci *dwc = pci_get_drvdata(pci);
device_init_wakeup(&pci->dev, false);
pm_runtime_get(&pci->dev);
acpi_dev_remove_driver_gpios(ACPI_COMPANION(&pci->dev));
platform_device_unregister(pci_get_drvdata(pci));
platform_device_unregister(dwc->dwc3);
}
static const struct pci_device_id dwc3_pci_id_table[] = {
@ -245,7 +263,8 @@ static int dwc3_pci_runtime_suspend(struct device *dev)
static int dwc3_pci_runtime_resume(struct device *dev)
{
struct platform_device *dwc3 = dev_get_drvdata(dev);
struct dwc3_pci *dwc = dev_get_drvdata(dev);
struct platform_device *dwc3 = dwc->dwc3;
return pm_runtime_get(&dwc3->dev);
}