diff options
| author | Neil Zhang <zhangwm@marvell.com> | 2011-10-12 16:49:35 +0800 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-10-13 20:42:06 +0300 |
| commit | 046b07ac0458fba8c5ca8d9ee04658c02066ee03 (patch) | |
| tree | ee85a5f7c30e3dc711732cffe2ee8fbc3f9c2000 /drivers/usb/gadget/mv_udc_core.c | |
| parent | 366162245e619d59c9d615774ab3aa639deb7725 (diff) | |
usb: gadget: mv_udc: add shutdown function for it
put the device in idle when shutdown.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/mv_udc_core.c')
| -rw-r--r-- | drivers/usb/gadget/mv_udc_core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index f8dc5b3dd796..ffa6f3097a64 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -2206,9 +2206,21 @@ static const struct dev_pm_ops mv_udc_pm_ops = { }; #endif +static void mv_udc_shutdown(struct platform_device *dev) +{ + struct mv_udc *udc = the_controller; + u32 mode; + + /* reset controller mode to IDLE */ + mode = readl(&udc->op_regs->usbmode); + mode &= ~3; + writel(mode, &udc->op_regs->usbmode); +} + static struct platform_driver udc_driver = { .probe = mv_udc_probe, .remove = __exit_p(mv_udc_remove), + .shutdown = mv_udc_shutdown, .driver = { .owner = THIS_MODULE, .name = "pxa-u2o", |