diff options
Diffstat (limited to 'drivers/usb/gadget/pxa27x_udc.c')
| -rw-r--r-- | drivers/usb/gadget/pxa27x_udc.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 0c9307118b5..11510472ee0 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -1779,10 +1779,21 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) dev_dbg(udc->dev, "registered gadget driver '%s'\n", driver->driver.name); + if (udc->transceiver) { + retval = otg_set_peripheral(udc->transceiver, &udc->gadget); + if (retval) { + dev_err(udc->dev, "can't bind to transceiver\n"); + goto transceiver_fail; + } + } + if (should_enable_udc(udc)) udc_enable(udc); return 0; +transceiver_fail: + if (driver->unbind) + driver->unbind(&udc->gadget); bind_fail: device_del(&udc->gadget.dev); add_fail: @@ -1840,9 +1851,11 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) udc->driver = NULL; device_del(&udc->gadget.dev); - dev_info(udc->dev, "unregistered gadget driver '%s'\n", driver->driver.name); + + if (udc->transceiver) + return otg_set_peripheral(udc->transceiver, NULL); return 0; } EXPORT_SYMBOL(usb_gadget_unregister_driver); @@ -2359,6 +2372,7 @@ static int __init pxa_udc_probe(struct platform_device *pdev) udc->dev = &pdev->dev; udc->mach = pdev->dev.platform_data; + udc->transceiver = otg_get_transceiver(); gpio = udc->mach->gpio_pullup; if (gpio_is_valid(gpio)) { @@ -2431,6 +2445,9 @@ static int __exit pxa_udc_remove(struct platform_device *_dev) if (gpio_is_valid(gpio)) gpio_free(gpio); + otg_put_transceiver(udc->transceiver); + + udc->transceiver = NULL; platform_set_drvdata(_dev, NULL); the_controller = NULL; clk_put(udc->clk); |