static int da8xx_remove(struct platform_device *pdev)
{
struct da8xx_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb);
usb_phy_generic_unregister(glue->usb_phy);
return 0;
}
static void dwc2_pci_remove(struct pci_dev *pci)
{
struct dwc2_pci_glue *glue = pci_get_drvdata(pci);
platform_device_unregister(glue->dwc2);
usb_phy_generic_unregister(glue->phy);
kfree(glue);
pci_set_drvdata(pci, NULL);
}
static int jz4740_remove(struct platform_device *pdev)
{
struct jz4740_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb);
usb_phy_generic_unregister(pdev);
clk_disable_unprepare(glue->clk);
return 0;
}
static int da8xx_probe(struct platform_device *pdev)
{
struct resource musb_resources[2];
struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct da8xx_glue *glue;
struct platform_device_info pinfo;
struct clk *clk;
struct device_node *np = pdev->dev.of_node;
int ret;
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
if (!glue)
return -ENOMEM;
clk = devm_clk_get(&pdev->dev, "usb20");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
return PTR_ERR(clk);
}
glue->phy = devm_phy_get(&pdev->dev, "usb-phy");
if (IS_ERR(glue->phy)) {
if (PTR_ERR(glue->phy) != -EPROBE_DEFER)
dev_err(&pdev->dev, "failed to get phy\n");
return PTR_ERR(glue->phy);
}
glue->dev = &pdev->dev;
glue->clk = clk;
if (IS_ENABLED(CONFIG_OF) && np) {
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->config = &da8xx_config;
pdata->mode = musb_get_mode(&pdev->dev);
pdata->power = get_vbus_power(&pdev->dev);
}
pdata->platform_ops = &da8xx_ops;
glue->usb_phy = usb_phy_generic_register();
ret = PTR_ERR_OR_ZERO(glue->usb_phy);
if (ret) {
dev_err(&pdev->dev, "failed to register usb_phy\n");
return ret;
}
platform_set_drvdata(pdev, glue);
memset(musb_resources, 0x00, sizeof(*musb_resources) *
ARRAY_SIZE(musb_resources));
musb_resources[0].name = pdev->resource[0].name;
musb_resources[0].start = pdev->resource[0].start;
musb_resources[0].end = pdev->resource[0].end;
musb_resources[0].flags = pdev->resource[0].flags;
musb_resources[1].name = pdev->resource[1].name;
musb_resources[1].start = pdev->resource[1].start;
musb_resources[1].end = pdev->resource[1].end;
musb_resources[1].flags = pdev->resource[1].flags;
pinfo = da8xx_dev_info;
pinfo.parent = &pdev->dev;
pinfo.res = musb_resources;
pinfo.num_res = ARRAY_SIZE(musb_resources);
pinfo.data = pdata;
pinfo.size_data = sizeof(*pdata);
glue->musb = platform_device_register_full(&pinfo);
ret = PTR_ERR_OR_ZERO(glue->musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
usb_phy_generic_unregister(glue->usb_phy);
}
return ret;
}
static int davinci_musb_init(struct musb *musb)
{
void __iomem *tibase = musb->ctrl_base;
u32 revision;
int ret = -ENODEV;
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (IS_ERR_OR_NULL(musb->xceiv)) {
ret = -EPROBE_DEFER;
goto unregister;
}
musb->mregs += DAVINCI_BASE_OFFSET;
/* returns zero if e.g. not clocked */
revision = musb_readl(tibase, DAVINCI_USB_VERSION_REG);
if (revision == 0)
goto fail;
setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
davinci_musb_source_power(musb, 0, 1);
/* dm355 EVM swaps D+/D- for signal integrity, and
* is clocked from the main 24 MHz crystal.
*/
if (machine_is_davinci_dm355_evm()) {
u32 phy_ctrl = __raw_readl(USB_PHY_CTRL);
phy_ctrl &= ~(3 << 9);
phy_ctrl |= USBPHY_DATAPOL;
__raw_writel(phy_ctrl, USB_PHY_CTRL);
}
/* On dm355, the default-A state machine needs DRVVBUS control.
* If we won't be a host, there's no need to turn it on.
*/
if (cpu_is_davinci_dm355()) {
u32 deepsleep = __raw_readl(DM355_DEEPSLEEP);
deepsleep &= ~DRVVBUS_FORCE;
__raw_writel(deepsleep, DM355_DEEPSLEEP);
}
/* reset the controller */
musb_writel(tibase, DAVINCI_USB_CTRL_REG, 0x1);
/* start the on-chip PHY and its PLL */
phy_on();
msleep(5);
/* NOTE: irqs are in mixed mode, not bypass to pure-musb */
pr_debug("DaVinci OTG revision %08x phy %03x control %02x\n",
revision, __raw_readl(USB_PHY_CTRL),
musb_readb(tibase, DAVINCI_USB_CTRL_REG));
musb->isr = davinci_musb_interrupt;
return 0;
fail:
usb_put_phy(musb->xceiv);
unregister:
usb_phy_generic_unregister();
return ret;
}
static int dwc2_pci_probe(struct pci_dev *pci,
const struct pci_device_id *id)
{
struct resource res[2];
struct platform_device *dwc2;
struct platform_device *phy;
int ret;
struct device *dev = &pci->dev;
struct dwc2_pci_glue *glue;
ret = pcim_enable_device(pci);
if (ret) {
dev_err(dev, "failed to enable pci device\n");
return -ENODEV;
}
pci_set_master(pci);
dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO);
if (!dwc2) {
dev_err(dev, "couldn't allocate dwc2 device\n");
return -ENOMEM;
}
memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
res[0].start = pci_resource_start(pci, 0);
res[0].end = pci_resource_end(pci, 0);
res[0].name = "dwc2";
res[0].flags = IORESOURCE_MEM;
res[1].start = pci->irq;
res[1].name = "dwc2";
res[1].flags = IORESOURCE_IRQ;
ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res));
if (ret) {
dev_err(dev, "couldn't add resources to dwc2 device\n");
return ret;
}
dwc2->dev.parent = dev;
phy = usb_phy_generic_register();
if (IS_ERR(phy)) {
dev_err(dev, "error registering generic PHY (%ld)\n",
PTR_ERR(phy));
return PTR_ERR(phy);
}
ret = dwc2_pci_quirks(pci, dwc2);
if (ret)
goto err;
ret = platform_device_add(dwc2);
if (ret) {
dev_err(dev, "failed to register dwc2 device\n");
goto err;
}
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue)
return -ENOMEM;
glue->phy = phy;
glue->dwc2 = dwc2;
pci_set_drvdata(pci, glue);
return 0;
err:
usb_phy_generic_unregister(phy);
platform_device_put(dwc2);
return ret;
}