diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2011-07-08 09:51:21 +0400 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-07-08 13:47:37 +0400 |
| commit | deafeb24e8a846da8555e68f4bcf651daa8a4ed1 (patch) | |
| tree | ba19bb658a0af42b2eab10d96f0a76b47df144b2 /drivers/usb/gadget | |
| parent | 5db05c09ac107ef957b7a052d7bba8190c93b460 (diff) | |
| download | linux-deafeb24e8a846da8555e68f4bcf651daa8a4ed1.tar.xz | |
usb: gadget: r8a66597-udc: fix cannot connect after rmmod gadget driver
When we run rmmod a gadget driver, the driver will call
disable_controller(). Then, because the bit of USBE in SYSCFG0 was
cleared in on_chip=1 mode, we could not connect the usb when we run
insmod a gadget driver next time.
This patch also cleans up probe() and ->stop() about unnecessary
init_controller().
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/r8a66597-udc.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index 7ee69152ec9e..4f3f1ce0424b 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -1444,6 +1444,7 @@ static int r8a66597_start(struct usb_gadget_driver *driver, goto error; } + init_controller(r8a66597); r8a66597_bset(r8a66597, VBSE, INTENB0); if (r8a66597_read(r8a66597, INTSTS0) & VBSTS) { r8a66597_start_xclock(r8a66597); @@ -1474,15 +1475,12 @@ static int r8a66597_stop(struct usb_gadget_driver *driver) spin_lock_irqsave(&r8a66597->lock, flags); if (r8a66597->gadget.speed != USB_SPEED_UNKNOWN) r8a66597_usb_disconnect(r8a66597); - spin_unlock_irqrestore(&r8a66597->lock, flags); - r8a66597_bclr(r8a66597, VBSE, INTENB0); + disable_controller(r8a66597); + spin_unlock_irqrestore(&r8a66597->lock, flags); driver->unbind(&r8a66597->gadget); - init_controller(r8a66597); - disable_controller(r8a66597); - device_del(&r8a66597->gadget.dev); r8a66597->driver = NULL; return 0; @@ -1646,8 +1644,6 @@ static int __init r8a66597_probe(struct platform_device *pdev) goto clean_up3; r8a66597->ep0_req->complete = nop_completion; - init_controller(r8a66597); - ret = usb_add_gadget_udc(&pdev->dev, &r8a66597->gadget); if (ret) goto err_add_udc; |