From 1fb3b1cffc58a82c3887c5101b496771e106e913 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 24 Jan 2013 10:55:59 +0200 Subject: [PATCH] usb: gadget: pch_udc: convert to udc_start/udc_stop Mechanical change making use of the new (can we still call it new ?) interface for registering UDC drivers. Signed-off-by: Felipe Balbi --- drivers/usb/gadget/pch_udc.c | 67 ++++++++---------------------------- 1 file changed, 14 insertions(+), 53 deletions(-) diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index 6490c0040e3a..a787a8ef672b 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -375,6 +375,7 @@ struct pch_udc_dev { struct pch_udc_cfg_data cfg_data; struct pch_vbus_gpio_data vbus_gpio; }; +#define to_pch_udc(g) (container_of((g), struct pch_udc_dev, gadget)) #define PCH_UDC_PCI_BAR 1 #define PCI_DEVICE_ID_INTEL_EG20T_UDC 0x8808 @@ -384,7 +385,6 @@ struct pch_udc_dev { static const char ep0_string[] = "ep0in"; static DEFINE_SPINLOCK(udc_stall_spinlock); /* stall spin lock */ -struct pch_udc_dev *pch_udc; /* pointer to device object */ static bool speed_fs; module_param_named(speed_fs, speed_fs, bool, S_IRUGO); MODULE_PARM_DESC(speed_fs, "true for Full speed operation"); @@ -1235,9 +1235,10 @@ static int pch_udc_pcd_vbus_draw(struct usb_gadget *gadget, unsigned int mA) return -EOPNOTSUPP; } -static int pch_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); -static int pch_udc_stop(struct usb_gadget_driver *driver); +static int pch_udc_start(struct usb_gadget *g, + struct usb_gadget_driver *driver); +static int pch_udc_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver); static const struct usb_gadget_ops pch_udc_ops = { .get_frame = pch_udc_pcd_get_frame, .wakeup = pch_udc_pcd_wakeup, @@ -1245,8 +1246,8 @@ static const struct usb_gadget_ops pch_udc_ops = { .pullup = pch_udc_pcd_pullup, .vbus_session = pch_udc_pcd_vbus_session, .vbus_draw = pch_udc_pcd_vbus_draw, - .start = pch_udc_start, - .stop = pch_udc_stop, + .udc_start = pch_udc_start, + .udc_stop = pch_udc_stop, }; /** @@ -2981,40 +2982,15 @@ static int init_dma_pools(struct pch_udc_dev *dev) return 0; } -static int pch_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) +static int pch_udc_start(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct pch_udc_dev *dev = pch_udc; - int retval; - - if (!driver || (driver->max_speed == USB_SPEED_UNKNOWN) || !bind || - !driver->setup || !driver->unbind || !driver->disconnect) { - dev_err(&dev->pdev->dev, - "%s: invalid driver parameter\n", __func__); - return -EINVAL; - } + struct pch_udc_dev *dev = to_pch_udc(g); - if (!dev) - return -ENODEV; - - if (dev->driver) { - dev_err(&dev->pdev->dev, "%s: already bound\n", __func__); - return -EBUSY; - } driver->driver.bus = NULL; dev->driver = driver; dev->gadget.dev.driver = &driver->driver; - /* Invoke the bind routine of the gadget driver */ - retval = bind(&dev->gadget, driver); - - if (retval) { - dev_err(&dev->pdev->dev, "%s: binding to %s returning %d\n", - __func__, driver->driver.name, retval); - dev->driver = NULL; - dev->gadget.dev.driver = NULL; - return retval; - } /* get ready for ep0 traffic */ pch_udc_setup_ep0(dev); @@ -3026,30 +3002,21 @@ static int pch_udc_start(struct usb_gadget_driver *driver, return 0; } -static int pch_udc_stop(struct usb_gadget_driver *driver) +static int pch_udc_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct pch_udc_dev *dev = pch_udc; - - if (!dev) - return -ENODEV; - - if (!driver || (driver != dev->driver)) { - dev_err(&dev->pdev->dev, - "%s: invalid driver parameter\n", __func__); - return -EINVAL; - } + struct pch_udc_dev *dev = to_pch_udc(g); pch_udc_disable_interrupts(dev, UDC_DEVINT_MSK); /* Assures that there are no pending requests with this driver */ - driver->disconnect(&dev->gadget); - driver->unbind(&dev->gadget); dev->gadget.dev.driver = NULL; dev->driver = NULL; dev->connected = 0; /* set SD */ pch_udc_set_disconnect(dev); + return 0; } @@ -3164,11 +3131,6 @@ static int pch_udc_probe(struct pci_dev *pdev, int retval; struct pch_udc_dev *dev; - /* one udc only */ - if (pch_udc) { - pr_err("%s: already probed\n", __func__); - return -EBUSY; - } /* init */ dev = kzalloc(sizeof *dev, GFP_KERNEL); if (!dev) { @@ -3207,7 +3169,6 @@ static int pch_udc_probe(struct pci_dev *pdev, retval = -ENODEV; goto finished; } - pch_udc = dev; /* initialize the hardware */ if (pch_udc_pcd_init(dev)) { retval = -ENODEV; -- 2.20.1