diff options
Diffstat (limited to 'drivers/usb/mtu3')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_gadget.c | 3 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_hw_regs.h | 1 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_qmu.c | 7 |
3 files changed, 9 insertions, 2 deletions
diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c index 80236e7b0895..c0264d5426bf 100644 --- a/drivers/usb/mtu3/mtu3_gadget.c +++ b/drivers/usb/mtu3/mtu3_gadget.c @@ -133,10 +133,9 @@ static int mtu3_ep_disable(struct mtu3_ep *mep) { struct mtu3 *mtu = mep->mtu; - mtu3_qmu_stop(mep); - /* abort all pending requests */ nuke(mep, -ESHUTDOWN); + mtu3_qmu_stop(mep); mtu3_deconfig_ep(mtu, mep); mtu3_gpd_ring_free(mep); diff --git a/drivers/usb/mtu3/mtu3_hw_regs.h b/drivers/usb/mtu3/mtu3_hw_regs.h index 519a58301f45..ee30ae0a4b54 100644 --- a/drivers/usb/mtu3/mtu3_hw_regs.h +++ b/drivers/usb/mtu3/mtu3_hw_regs.h @@ -128,6 +128,7 @@ #define TX_FIFOEMPTY BIT(24) #define TX_SENTSTALL BIT(22) #define TX_SENDSTALL BIT(21) +#define TX_FLUSHFIFO BIT(20) #define TX_TXPKTRDY BIT(16) #define TX_TXMAXPKTSZ_MSK GENMASK(10, 0) #define TX_TXMAXPKTSZ(x) ((x) & TX_TXMAXPKTSZ_MSK) 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); } |