Exemple #1
0
static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
{
	struct usb_hcd	*hcd = platform_get_drvdata(pdev);

	if (device_may_wakeup(&pdev->dev))
		disable_irq_wake(hcd->irq);

	if (!clocked)
		at91_start_clock();

	return 0;
}
Exemple #2
0
static int at91_ohci_probe(struct device_d *dev)
{
	int ret;
	struct resource *io;
	struct ohci_at91_priv *ohci_at91 = xzalloc(sizeof(*ohci_at91));

	dev->priv = ohci_at91;
	ohci_at91->dev = dev;

	if (dev->device_node) {
		ret = at91_ohci_probe_dt(dev);
		if (ret < 0)
			return ret;
	}

	io = dev_get_resource(dev, IORESOURCE_MEM, 0);
	if (IS_ERR(io)) {
		dev_err(dev, "Failed to get IORESOURCE_MEM\n");
		return PTR_ERR(io);
	}
	ohci_at91->regs = IOMEM(io->start);

	ohci_at91->iclk = clk_get(dev, "ohci_clk");
	if (IS_ERR(ohci_at91->iclk)) {
		dev_err(dev, "Failed to get 'ohci_clk'\n");
		return PTR_ERR(ohci_at91->iclk);
	}

	ohci_at91->fclk = clk_get(dev, "uhpck");
	if (IS_ERR(ohci_at91->fclk)) {
		dev_err(dev, "Failed to get 'uhpck'\n");
		return PTR_ERR(ohci_at91->fclk);
	}

	/*
	 * Start the USB clocks.
	 */
	ret = at91_start_clock(ohci_at91);
	if (ret < 0)
		return ret;

	/*
	 * The USB host controller must remain in reset.
	 */
	writel(0, &ohci_at91->regs->control);

	add_generic_device("ohci", DEVICE_ID_DYNAMIC, NULL, io->start,
			   resource_size(io), IORESOURCE_MEM, NULL);

	return 0;
}
Exemple #3
0
static void at91_start_hc(struct platform_device *pdev)
{
	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	struct ohci_regs __iomem *regs = hcd->regs;

	dev_dbg(&pdev->dev, "start\n");

	/*
	 * Start the USB clocks.
	 */
	at91_start_clock();

	/*
	 * The USB host controller must remain in reset.
	 */
	writel(0, &regs->control);
}
Exemple #4
0
static int at91_ohci_probe(struct device_d *dev)
{
	struct ohci_regs __iomem *regs = (struct ohci_regs __iomem *)dev->resource[0].start;

	iclk = clk_get(NULL, "ohci_clk");
	fclk = clk_get(NULL, "uhpck");

	/*
	 * Start the USB clocks.
	 */
	at91_start_clock();

	/*
	 * The USB host controller must remain in reset.
	 */
	writel(0, &regs->control);

	add_generic_device("ohci", -1, NULL, dev->resource[0].start,
			   dev->resource[0].size, IORESOURCE_MEM, NULL);

	return 0;
}