diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2011-10-31 07:01:33 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-14 19:51:20 (GMT) |
| commit | 05bb7013038a2b609aef14ad4e07afe031daec49 (patch) | |
| tree | 43e2f10f1da6a3bb1c35bcac10cfb383d4a71f66 | |
| parent | b8cbbf803d5ad0971665dd502d784148464c6d1a (diff) | |
| download | linux-05bb7013038a2b609aef14ad4e07afe031daec49.tar.xz | |
usb: gadget: r8a66597-udc: fix flush fifo handling
The "BCLR" in CFIFOCTR/DnFIFOCTR can flush the fifo of "CPU side" only.
To flush the fifo of "SIE side", we have to use the "ACLRM" in PIPEnCTR.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/gadget/r8a66597-udc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index 38f9988..24f84b2 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -1718,6 +1718,8 @@ static void r8a66597_fifo_flush(struct usb_ep *_ep) if (list_empty(&ep->queue) && !ep->busy) { pipe_stop(ep->r8a66597, ep->pipenum); r8a66597_bclr(ep->r8a66597, BCLR, ep->fifoctr); + r8a66597_write(ep->r8a66597, ACLRM, ep->pipectr); + r8a66597_write(ep->r8a66597, 0, ep->pipectr); } spin_unlock_irqrestore(&ep->r8a66597->lock, flags); } |