From 3381fb602d4ae0a6388ba336a29bf999c1744cd6 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 24 Jan 2013 10:49:17 +0200 Subject: [PATCH] usb: gadget: m66592-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/m66592-udc.c | 70 +++++++++------------------------ drivers/usb/gadget/m66592-udc.h | 1 + 2 files changed, 20 insertions(+), 51 deletions(-) diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index b6401f1b56ce..0a35db1ae029 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -1463,42 +1463,16 @@ static struct usb_ep_ops m66592_ep_ops = { }; /*-------------------------------------------------------------------------*/ -static struct m66592 *the_controller; - -static int m66592_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) +static int m66592_udc_start(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct m66592 *m66592 = the_controller; - int retval; - - if (!driver - || driver->max_speed < USB_SPEED_HIGH - || !bind - || !driver->setup) - return -EINVAL; - if (!m66592) - return -ENODEV; - if (m66592->driver) - return -EBUSY; + struct m66592 *m66592 = to_m66592(g); /* hook up the driver */ driver->driver.bus = NULL; m66592->driver = driver; m66592->gadget.dev.driver = &driver->driver; - retval = device_add(&m66592->gadget.dev); - if (retval) { - pr_err("device_add error (%d)\n", retval); - goto error; - } - - retval = bind(&m66592->gadget, driver); - if (retval) { - pr_err("bind to driver error (%d)\n", retval); - device_del(&m66592->gadget.dev); - goto error; - } - m66592_bset(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0); if (m66592_read(m66592, M66592_INTSTS0) & M66592_VBSTS) { m66592_start_xclock(m66592); @@ -1510,26 +1484,12 @@ static int m66592_start(struct usb_gadget_driver *driver, } return 0; - -error: - m66592->driver = NULL; - m66592->gadget.dev.driver = NULL; - - return retval; } -static int m66592_stop(struct usb_gadget_driver *driver) +static int m66592_udc_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct m66592 *m66592 = the_controller; - unsigned long flags; - - if (driver != m66592->driver || !driver->unbind) - return -EINVAL; - - spin_lock_irqsave(&m66592->lock, flags); - if (m66592->gadget.speed != USB_SPEED_UNKNOWN) - m66592_usb_disconnect(m66592); - spin_unlock_irqrestore(&m66592->lock, flags); + struct m66592 *m66592 = to_m66592(g); m66592_bclr(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0); @@ -1539,8 +1499,8 @@ static int m66592_stop(struct usb_gadget_driver *driver) init_controller(m66592); disable_controller(m66592); - device_del(&m66592->gadget.dev); m66592->driver = NULL; + return 0; } @@ -1568,8 +1528,8 @@ static int m66592_pullup(struct usb_gadget *gadget, int is_on) static struct usb_gadget_ops m66592_gadget_ops = { .get_frame = m66592_get_frame, - .start = m66592_start, - .stop = m66592_stop, + .udc_start = m66592_udc_start, + .udc_stop = m66592_udc_stop, .pullup = m66592_pullup, }; @@ -1578,6 +1538,7 @@ static int __exit m66592_remove(struct platform_device *pdev) struct m66592 *m66592 = dev_get_drvdata(&pdev->dev); usb_del_gadget_udc(&m66592->gadget); + device_del(&m66592->gadget.dev); del_timer_sync(&m66592->timer); iounmap(m66592->reg); @@ -1706,8 +1667,6 @@ static int __init m66592_probe(struct platform_device *pdev) m66592->pipenum2ep[0] = &m66592->ep[0]; m66592->epaddr2ep[0] = &m66592->ep[0]; - the_controller = m66592; - m66592->ep0_req = m66592_alloc_request(&m66592->ep[0].ep, GFP_KERNEL); if (m66592->ep0_req == NULL) goto clean_up3; @@ -1715,6 +1674,12 @@ static int __init m66592_probe(struct platform_device *pdev) init_controller(m66592); + ret = device_add(&m66592->gadget.dev); + if (ret) { + pr_err("device_add error (%d)\n", ret); + goto err_device_add; + } + ret = usb_add_gadget_udc(&pdev->dev, &m66592->gadget); if (ret) goto err_add_udc; @@ -1723,6 +1688,9 @@ static int __init m66592_probe(struct platform_device *pdev) return 0; err_add_udc: + device_del(&m66592->gadget.dev); + +err_device_add: m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req); clean_up3: diff --git a/drivers/usb/gadget/m66592-udc.h b/drivers/usb/gadget/m66592-udc.h index 16c7e14678b8..96d49d7bfb6b 100644 --- a/drivers/usb/gadget/m66592-udc.h +++ b/drivers/usb/gadget/m66592-udc.h @@ -492,6 +492,7 @@ struct m66592 { int isochronous; int num_dma; }; +#define to_m66592(g) (container_of((g), struct m66592, gadget)) #define gadget_to_m66592(_gadget) container_of(_gadget, struct m66592, gadget) #define m66592_to_gadget(m66592) (&m66592->gadget) -- 2.20.1