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usb: mtu3: reset gadget when VBUS_FALL interrupt arises

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When VBUS_FALL interrupt arises, it means U3 device is disconnected
with host, so need reset status of gadget

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2018-05-23 16:53:19 +08:00 committed by Greg Kroah-Hartman
parent 3d7678e2a0
commit 4f9f032c25
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/mtu3/mtu3_core.c
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@ -668,8 +668,10 @@ static irqreturn_t mtu3_u3_ltssm_isr(struct mtu3 *mtu)
if (ltssm & (HOT_RST_INTR | WARM_RST_INTR))
mtu3_gadget_reset(mtu);
if (ltssm & VBUS_FALL_INTR)
if (ltssm & VBUS_FALL_INTR) {
mtu3_ss_func_set(mtu, false);
mtu3_gadget_reset(mtu);
}
if (ltssm & VBUS_RISE_INTR)
mtu3_ss_func_set(mtu, true);