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authorNeil Zhang <zhangwm@marvell.com>2011-10-12 16:49:35 +0800
committerFelipe Balbi <balbi@ti.com>2011-10-13 20:42:06 +0300
commit046b07ac0458fba8c5ca8d9ee04658c02066ee03 (patch)
treeee85a5f7c30e3dc711732cffe2ee8fbc3f9c2000 /drivers/usb
parent366162245e619d59c9d615774ab3aa639deb7725 (diff)
downloadblackbird-op-linux-046b07ac0458fba8c5ca8d9ee04658c02066ee03.tar.gz
blackbird-op-linux-046b07ac0458fba8c5ca8d9ee04658c02066ee03.zip
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')
-rw-r--r--drivers/usb/gadget/mv_udc_core.c12
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",
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