#include <linux/pm_runtime.h>
#include <linux/usb/ehci_def.h>
#include <linux/usb/tegra_usb_phy.h>
+#include <linux/clk/tegra.h>
#define TEGRA_USB_BASE 0xC5000000
#define TEGRA_USB2_BASE 0xC5004000
/* Bits of PORTSC1, which will get cleared by writing 1 into them */
#define TEGRA_PORTSC1_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC)
-void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val)
+static void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val)
{
unsigned long val;
struct usb_hcd *hcd = bus_to_hcd(x->otg->host);
val |= TEGRA_USB_PORTSC1_PTS(pts_val & 3);
writel(val, base + TEGRA_USB_PORTSC1);
}
-EXPORT_SYMBOL_GPL(tegra_ehci_set_pts);
-void tegra_ehci_set_phcd(struct usb_phy *x, bool enable)
+static void tegra_ehci_set_phcd(struct usb_phy *x, bool enable)
{
unsigned long val;
struct usb_hcd *hcd = bus_to_hcd(x->otg->host);
val &= ~TEGRA_USB_PORTSC1_PHCD;
writel(val, base + TEGRA_USB_PORTSC1);
}
-EXPORT_SYMBOL_GPL(tegra_ehci_set_phcd);
static u64 tegra_ehci_dma_mask = DMA_BIT_MASK(32);
if (err)
goto fail_clk;
+ tegra_periph_reset_assert(tegra->clk);
+ udelay(1);
+ tegra_periph_reset_deassert(tegra->clk);
+
tegra->needs_double_reset = of_property_read_bool(pdev->dev.of_node,
"nvidia,needs-double-reset");
tegra->phy = tegra_usb_phy_open(&pdev->dev, instance, hcd->regs,
pdata->phy_config,
- TEGRA_USB_PHY_MODE_HOST);
+ TEGRA_USB_PHY_MODE_HOST,
+ tegra_ehci_set_pts,
+ tegra_ehci_set_phcd);
if (IS_ERR(tegra->phy)) {
dev_err(&pdev->dev, "Failed to open USB phy\n");
err = -ENXIO;
err = usb_phy_set_suspend(hcd->phy, 0);
if (err) {
dev_err(&pdev->dev, "Failed to power on the phy\n");
- goto fail;
+ goto fail_phy;
}
tegra->host_resumed = 1;
if (!irq) {
dev_err(&pdev->dev, "Failed to get IRQ\n");
err = -ENODEV;
- goto fail;
+ goto fail_phy;
}
-#ifdef CONFIG_USB_OTG_UTILS
if (pdata->operating_mode == TEGRA_USB_OTG) {
tegra->transceiver =
devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
- if (!IS_ERR_OR_NULL(tegra->transceiver))
+ if (!IS_ERR(tegra->transceiver))
otg_set_host(tegra->transceiver->otg, &hcd->self);
+ } else {
+ tegra->transceiver = ERR_PTR(-ENODEV);
}
-#endif
err = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (err) {
return err;
fail:
-#ifdef CONFIG_USB_OTG_UTILS
- if (!IS_ERR_OR_NULL(tegra->transceiver))
+ if (!IS_ERR(tegra->transceiver))
otg_set_host(tegra->transceiver->otg, NULL);
-#endif
+fail_phy:
usb_phy_shutdown(hcd->phy);
fail_io:
clk_disable_unprepare(tegra->clk);
pm_runtime_disable(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
-#ifdef CONFIG_USB_OTG_UTILS
- if (!IS_ERR_OR_NULL(tegra->transceiver))
+ if (!IS_ERR(tegra->transceiver))
otg_set_host(tegra->transceiver->otg, NULL);
-#endif
usb_phy_shutdown(hcd->phy);
usb_remove_hcd(hcd);