diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/pxa25x_udc.c | 76 |
1 files changed, 7 insertions, 69 deletions
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index b37f92c..444b60a 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -139,24 +139,6 @@ static const char ep0name [] = "ep0"; static void pxa25x_ep_fifo_flush (struct usb_ep *ep); static void nuke (struct pxa25x_ep *, int status); -/* one GPIO should be used to detect VBUS from the host */ -static int is_vbus_present(void) -{ - struct pxa2xx_udc_mach_info *mach = the_controller->mach; - - if (gpio_is_valid(mach->gpio_vbus)) { - int value = gpio_get_value(mach->gpio_vbus); - - if (mach->gpio_vbus_inverted) - return !value; - else - return !!value; - } - if (mach->udc_is_connected) - return mach->udc_is_connected(); - return 1; -} - /* one GPIO should control a D+ pullup, so host sees this device (or not) */ static void pullup_off(void) { @@ -1055,7 +1037,7 @@ udc_seq_show(struct seq_file *m, void *_d) "%s version: %s\nGadget driver: %s\nHost %s\n\n", driver_name, DRIVER_VERSION SIZE_STR "(pio)", dev->driver ? dev->driver->driver.name : "(none)", - is_vbus_present() ? "full speed" : "disconnected"); + dev->gadget.speed == USB_SPEED_FULL ? "full speed" : "disconnected"); /* registers for device and ep0 */ seq_printf(m, @@ -1094,7 +1076,7 @@ udc_seq_show(struct seq_file *m, void *_d) (tmp & UDCCFR_ACM) ? " acm" : ""); } - if (!is_vbus_present() || !dev->driver) + if (dev->gadget.speed != USB_SPEED_FULL || !dev->driver) goto done; seq_printf(m, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n", @@ -1435,14 +1417,6 @@ lubbock_vbus_irq(int irq, void *_dev) #endif -static irqreturn_t udc_vbus_irq(int irq, void *_dev) -{ - struct pxa25x_udc *dev = _dev; - - pxa25x_udc_vbus_session(&dev->gadget, is_vbus_present()); - return IRQ_HANDLED; -} - /*-------------------------------------------------------------------------*/ @@ -1766,12 +1740,9 @@ pxa25x_udc_irq(int irq, void *_dev) if (unlikely(udccr & UDCCR_SUSIR)) { udc_ack_int_UDCCR(UDCCR_SUSIR); handled = 1; - DBG(DBG_VERBOSE, "USB suspend%s\n", is_vbus_present() - ? "" : "+disconnect"); + DBG(DBG_VERBOSE, "USB suspend\n"); - if (!is_vbus_present()) - stop_activity(dev, dev->driver); - else if (dev->gadget.speed != USB_SPEED_UNKNOWN + if (dev->gadget.speed != USB_SPEED_UNKNOWN && dev->driver && dev->driver->suspend) dev->driver->suspend(&dev->gadget); @@ -1786,8 +1757,7 @@ pxa25x_udc_irq(int irq, void *_dev) if (dev->gadget.speed != USB_SPEED_UNKNOWN && dev->driver - && dev->driver->resume - && is_vbus_present()) + && dev->driver->resume) dev->driver->resume(&dev->gadget); } @@ -2137,7 +2107,7 @@ static struct pxa25x_udc memory = { static int __init pxa25x_udc_probe(struct platform_device *pdev) { struct pxa25x_udc *dev = &memory; - int retval, vbus_irq, irq; + int retval, irq; u32 chiprev; /* insist on Intel/ARM/XScale */ @@ -2199,19 +2169,6 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev) dev->transceiver = otg_get_transceiver(); - if (gpio_is_valid(dev->mach->gpio_vbus)) { - if ((retval = gpio_request(dev->mach->gpio_vbus, - "pxa25x_udc GPIO VBUS"))) { - dev_dbg(&pdev->dev, - "can't get vbus gpio %d, err: %d\n", - dev->mach->gpio_vbus, retval); - goto err_gpio_vbus; - } - gpio_direction_input(dev->mach->gpio_vbus); - vbus_irq = gpio_to_irq(dev->mach->gpio_vbus); - } else - vbus_irq = 0; - if (gpio_is_valid(dev->mach->gpio_pullup)) { if ((retval = gpio_request(dev->mach->gpio_pullup, "pca25x_udc GPIO PULLUP"))) { @@ -2237,7 +2194,7 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev) udc_disable(dev); udc_reinit(dev); - dev->vbus = !!is_vbus_present(); + dev->vbus = 0; /* irq setup after old hardware state is cleaned up */ retval = request_irq(irq, pxa25x_udc_irq, @@ -2273,22 +2230,10 @@ lubbock_fail0: } } else #endif - if (vbus_irq) { - retval = request_irq(vbus_irq, udc_vbus_irq, - IRQF_DISABLED | IRQF_SAMPLE_RANDOM | - IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - driver_name, dev); - if (retval != 0) { - pr_err("%s: can't get irq %i, err %d\n", - driver_name, vbus_irq, retval); - goto err_vbus_irq; - } - } create_debug_files(dev); return 0; - err_vbus_irq: #ifdef CONFIG_ARCH_LUBBOCK free_irq(LUBBOCK_USB_DISC_IRQ, dev); err_irq_lub: @@ -2298,9 +2243,6 @@ lubbock_fail0: if (gpio_is_valid(dev->mach->gpio_pullup)) gpio_free(dev->mach->gpio_pullup); err_gpio_pullup: - if (gpio_is_valid(dev->mach->gpio_vbus)) - gpio_free(dev->mach->gpio_vbus); - err_gpio_vbus: if (dev->transceiver) { otg_put_transceiver(dev->transceiver); dev->transceiver = NULL; @@ -2337,10 +2279,6 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev) free_irq(LUBBOCK_USB_IRQ, dev); } #endif - if (gpio_is_valid(dev->mach->gpio_vbus)) { - free_irq(gpio_to_irq(dev->mach->gpio_vbus), dev); - gpio_free(dev->mach->gpio_vbus); - } if (gpio_is_valid(dev->mach->gpio_pullup)) gpio_free(dev->mach->gpio_pullup); |