static void tegra_ehci_hcd_shutdown(struct platform_device *pdev)
{
struct tegra_ehci_hcd *tegra = NULL;
struct usb_hcd *hcd = NULL;
dev_info(&pdev->dev, "%s+\n", __func__);
device_ehci_shutdown = true;
if (!_try_lock(&pdev->dev)) {
pr_info("%s failed to lock device\n", __func__);
goto exit;
}
tegra = platform_get_drvdata(pdev);
if (!tegra) {
pr_info("%s device has no driver data\n", __func__);
goto unlock_device;
}
hcd = ehci_to_hcd(tegra->ehci);
if ( !hcd || !hcd->driver ) {
pr_info("%s: hcd <%p> or driver is NULL\n", __func__, hcd);
WARN_ON(1);
goto unlock_device;
}
if (hcd->driver->shutdown)
hcd->driver->shutdown(hcd);
dev_info(&pdev->dev, "%s-\n", __func__); //htc_dbg
unlock_device:
device_unlock(&pdev->dev);
exit:
return;
}
bool try_lock() { return _try_lock() == 0; }