diff options
Diffstat (limited to 'drivers/usb/mtu3/mtu3_qmu.c')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_qmu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/mtu3/mtu3_qmu.c b/drivers/usb/mtu3/mtu3_qmu.c index 2ea3157ddb6e..a2fdab8b63b2 100644 --- a/drivers/usb/mtu3/mtu3_qmu.c +++ b/drivers/usb/mtu3/mtu3_qmu.c @@ -388,6 +388,9 @@ void mtu3_qmu_stop(struct mtu3_ep *mep) } mtu3_writel(mbase, qcsr, QMU_Q_STOP); + if (mep->is_in) + mtu3_setbits(mbase, MU3D_EP_TXCR0(epnum), TX_FLUSHFIFO); + ret = readl_poll_timeout_atomic(mbase + qcsr, value, !(value & QMU_Q_ACTIVE), 1, 1000); if (ret) { @@ -395,6 +398,10 @@ void mtu3_qmu_stop(struct mtu3_ep *mep) return; } + /* flush fifo again to make sure the fifo is empty */ + if (mep->is_in) + mtu3_setbits(mbase, MU3D_EP_TXCR0(epnum), TX_FLUSHFIFO); + dev_dbg(mtu->dev, "%s's qmu stop now!\n", mep->name); } |