| Message ID | 5d0d535b9a86a07d9b1bddfbca62b54e7d96a702.1525930818.git.chunfeng.yun@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index 65ff53a..0bc2b39 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -400,6 +400,10 @@ void mtu3_deconfig_ep(struct mtu3 *mtu, struct mtu3_ep *mep) mtu3_setbits(mbase, U3D_QIECR0, QMU_RX_DONE_INT(epnum)); } + /* reset: u2 - data toggle, u3 - SeqN, flow control status etc */ + mtu3_setbits(mbase, U3D_EP_RST, EP_RST(mep->is_in, epnum)); + mtu3_clrbits(mbase, U3D_EP_RST, EP_RST(mep->is_in, epnum)); + ep_fifo_free(mep); dev_dbg(mtu->dev, "%s: %s\n", __func__, mep->name);
Reset EP when disable it to reset data toggle for U2 EP, and SeqN, flow control status etc for U3 EP, this can avoid issue of uncontinuous SeqN Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> --- v2: add this patch --- drivers/usb/mtu3/mtu3_core.c | 4 ++++ 1 file changed, 4 insertions(+)